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2006 Audi A4 / S4 repairs by problem area

Engine (55%)

Transmission and Drivetrain (5%)

Brakes and Traction Control (2%)

Suspension and Steering (9%)

Electrical and Air Conditioning (21%)

Paint, Rust, Leaks, Rattles, and Trim (4%)

Other (4%)

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Chart based on 911 repairs.

See TSBs and recalls for the 2006 Audi A4 / S4.

2006 Audi A4 / S4 repair cost distribution

$2500+ (5%)

$1000 - $2499 (15%)

$500 - $999 (14%)

$100 - $499 (33%)

< $100 (33%)

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Chart based on 440 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

See repairs for all Audi A4 / S4 model years.

Audi S4 in British Columbia, Canada Jul 2007 - May 2009
Jan 2008 23560 mi	BURNING A LOT OF OIL, DEALER WANTS TO CHANGE OIL AND WEIGH IT AND THEN TAKE OIL OUT AFTER 1000KMS AND REWEIGH TO DETERMINE HOW MUCH OIL IS BEING BURNED.
Apr 2008 25420 mi	Part 2 of an oil consumption test to determine how much oil is being consumed.

Audi S4 in New Jersey, United States Jan 2009 - Mar 2010
Jul 2009 18000 mi	Also, noted problem with door lock button, shop says "could not duplicate," no action taken.

Audi S4 in California, United States Mar 2009 - Nov 2015
Mar 2009 46796 mi US $175	front turn signal wasn't working. Had socket and bulb replaced.
Apr 2009 47000 mi US $175	front turn signal was out. Bulb and socket replaced.
Jun 2010 57000 mi	clicking noise coming from front of car, ended up being subframe weld problem. Subframe replaced but doing so required alignment (only bit not covered by the warranty). front wheel bearing replaced
Nov 2010 61000 mi	gas door wouldn't stay closed, replaced actuator gas door wouldn't stay closed, replaced actuator
Apr 2012 77000 mi US $2000	dying fuel pump
May 2014 105000 mi	two driving lights were burned out, took over ten minutes window lock broke
Nov 2015 122000 mi	leaky gasket

Audi S4 in New York, United States Dec 2008 - Mar 2012
Mar 2012 69000 mi US $190	Driver door window regulator failed, could not close window. Dealership said it would take all day to fix, bought part and did it myself.

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Audi S4 in California, United States Nov 2012 - Feb 2020
Jan 2013 80000 mi US $700	Replaced both worn upper control arm bushings (common repair as these cars age) Replaced cracked coolant overflow reservoir
Jul 2016 97200 mi	Low tone horn wire disconnected, reconnected at no charge
Aug 2016 98000 mi US $315	Upper coolant hose had small leak, replaced hose
Dec 2017 103000 mi US $350	Replaced failing left front wheel bearing

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Audi S4 in Washington, United States - Jan 2010
Jan 2010 60000 mi US $90	Passenger side headlight washer cover came off. $30 for part + $60 paint/installation.

Audi S4 in New Jersey, United States Feb 2011 - Mar 2013
Dec 2011 63000 mi US $90	Control arm
Dec 2012 70000 mi	Control arm passenger

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Audi S4 in Nevada, United States Feb 2009 - Sep 2015
Nov 2009 24000 mi US $3500	Clutch replacement: Blew the clutch due to a missed shift. Clutch became solid link, with shift lever in neutral car ran fine. No other problems. Impressed by transmissions integrity.
Feb 2013 57800 mi US $1700	Serpentine belt was cracked and showing wear (replaced). Front rubber suspension bushings cracked (replaced).
Sep 2015 79000 mi US $200	There are drain tubes in the roof that were clogged. This was causing a leak into the cabin. These drain tubes had to be blown out, which is a service my dealership should have been proving, but wasn't.

Audi S4 in California, United States Apr 2011 - Dec 2015
Jul 2014 85700 mi US $155	Power steering pump leaked out & had to be replaced. Low on freon. Dealer added dye will be back in August to check for leaks.

Audi S4 in Oregon, United States Jun 2012 - Aug 2012
Jul 2012 49000 mi US $384	valve gaskets beginning to mildly seep

Audi S4 in Colorado, United States Apr 2012 - Mar 2013
Feb 2013 54000 mi US $160	CD Changer failed. Had to be replaced.

Audi S4 in California, United States Jul 2010 - Dec 2011
Dec 2011 74000 mi	rear window child lockout switch; unrepaired (passed on part to new owner)

Audi S4 in Massachusetts, United States Nov 2008 - Jan 2013
May 2009 35000 mi	Squeak in driver's seat.
Dec 2009 43000 mi	Trunk latch mechanism failed and was replaced.
Oct 2010 55000 mi US $1800	Power steering failed. Power steering pump and steering rack replaced.
Sep 2012 75000 mi US $125	This model has a history of headlight flickering and headlight outages. Sometimes headlight bulb replacement fixes it, sometimes the ballast or other electrical parts need to be replaced. In this case, replacing the bulbs fixed it for now.

Audi S4 in California, United States Mar 2010 - Jun 2011
Dec 2010 77000 mi	Ignition coils failed, replace under factory campaign they were paid by Audi $138. Also notified me that the serpentine belt was cracked and needed replacement and front suspension bushing was cracked. They wanted $1200. I bought the belt.

Audi S4 in Colorado, United States Oct 2015 - Dec 2015
Dec 2015 83000 mi US $100	Drivers side Driving Light Bulb harness was shorting out due to wear on the wiring sheath.

Audi S4 in Pennsylvania, United States Aug 2010 - Dec 2015
Nov 2012 94800 mi US $440	Replaced passenger window regulator
Dec 2012 96000 mi US $1800	Relined clutch Valve cover gasket replacement
Sep 2013 105000 mi US $85	HID headlights go bad far too often. Replace right dipping light. Most of the work is getting the airbox out of the way.
Jan 2014 111000 mi US $1050	Fuel pump failed. Something was making strange noises for a month or so. Determined it was the fuel pump after it failed. Car is quiet now.
Oct 2014 121000 mi US $320	Changed PCV due to high oil usage (no leaks or exhaust smell??) Tires, and wheel alighnment. Alignment only slightly out since car was manufactured.
Feb 2015 126000 mi US $1700	Window mechanism frozen. Coolant hose leaking Fuel pump squealing
Oct 2015 134000 mi US $350	Tie rod worn causing tires to begin cupping. Had no apparent impact on drivability otherwise.
Dec 2015 135000 mi US $100	Display showed coolant level low. Level OK but thermostat was stuck partially open. Replaced

Audi S4 in Illinois, United States Nov 2010 - Jun 2022
Mar 2011 30000 mi	Drawer under passenger front seat opens when stopping and closes when accelerating. This is second failure of repair.
May 2011 32000 mi US $80	Drawer under passenger seat will not stay shut. Third failed attempt at repair. Due to my schedule another repair has not yet been attempted.
Jun 2012 34000 mi	Passenger seat drawer doesn't latch,
Mar 2014 35000 mi US $288	Exhaust pipe brackets failed.

Audi S4 in New Jersey, United States Oct 2010 - Oct 2015
Oct 2012 83700 mi US $600	Broken serpentine belt.

Audi S4 in Virginia, United States Sep 2016 - Jun 2018
Jun 2017 126000 mi US $180	Replaced all spark plugs, air filter, two coil packs, and a PCV container / valve assembly.
Jun 2018 128000 mi US $350	Replaced serpentine belt. Replaced manual belt tensioner and idler pulley with automatic tensioner conversion from JHM. Replaced the snub nose bushing. Replaced spark plugs.

Audi S4 in Washington, United States Dec 2015 - Apr 2016
Jan 2016 US $4200	Cam adjusters failed

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Audi S4 in New Jersey, United States Sep 2010 - Sep 2011
Jan 2011	Retightened Allen Bolts for Cabriolet Roof Closure. Need to do this about every 3 months
Sep 2011 56000 mi US $100	Starter intermittently stopped working. Replaced under copo warranty with $100 deducatable

Audi S4 in Maryland, United States Feb 2012 - Oct 2015
Mar 2012 49000 mi	Fuel pump / Fuel filter
Jul 2012 53000 mi US $214	Took car in for regular 5K oil / filter change and to reset auto locking/unlocking of doors, but discovered that Upper control arm bushings are failing and will cost $1375.00 to replace
Dec 2012 59000 mi US $394	Failure of Front Upper and Rear Control Arms. $ replaced Defective Serpentine Belt
Apr 2013 63500 mi US $1400	CV boot tearing, needed replacement Valve cover gasket leaking x 2 Serpentine belt pulley got stuck, shredded belt partially, but could be freed / lubricated.
Aug 2013 67700 mi	Failed left front lower / forward control arm
Jan 2014 61500 mi	Failure of engine mount material Right side auxiliary radiator leaking / failed Lower Radiator hose leaking
Mar 2015 76000 mi US $100	Oil filter flange was leaking
Oct 2015 93000 mi US $165	Ground strap was coming apart from starter and starter had to be replaced Serpentine belt tensioner failure

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Audi S4 in New Jersey, United States Nov 2010 - Sep 2017
Jan 2011 23000 mi	Ignition coil replaced under notice
Sep 2011 31000 mi US $600	Engine mount replacement
Dec 2012 57000 mi US $1600	Clutch replacement and brake replacement
Jan 2013 78000 mi US $250	Wheel bearing, control arms and sway bar replacement/repair
Dec 2013 80000 mi US $2000	replace radio and gps system
Aug 2014 89000 mi US $950	cruise control not working
Oct 2014 90000 mi	Engine oil light would come on in between service visits. Extended warranty doesn't cover diagnostic costs, with dealer decided step 2 of test unnecessary.
Nov 2016 123000 mi US $2000	coolant tank replaced, hoses replaced
Aug 2017 135000 mi US $2000	engine mounts replaced

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Audi A4 in California, United States Sep 2009 - Dec 2011
Dec 2009 58000 mi US $450	Both engine mounts damaged. One is collapsed, the other is leaking. Certification hassle with my shady dealer.
Feb 2010 60300 mi US $85	Broken engine mounts replaced by another, more conscientious dealer. Dealer broke my Headlight Range Control Module after finishing work on my broken engine mounts.

Audi A4 in New South Wales, Australia May 2010 - Oct 2012
Nov 2010 49620 mi A $947	Rocker cam cover gasket leak and air leak causing missing repaired. New coil packs replaced for free under service measure 28E9 and 23D6 campaign.
Jul 2012 77900 mi A $3000	Fuel pump cam follower failed damaging the cam shaft

Audi A4 in Illinois, United States Apr 2009 - Oct 2010
Aug 2009 64000 mi US $85	noise from HVAC system, replaced vent flapper motor, covered by a TSB Sluggish acceleration, fixed with software reflash
Feb 2010 69200 mi US $85	Evaporative System valve replaced
Jun 2010 75000 mi US $85	A/C does not adequately cool vehicle. Navigation / Head unit Cd player inoperative, replaced entire unit. Xenon headlamps flicker randomly, shut off occasionally.
Sep 2010 77000 mi US $85	Fuel pump replaced for second time! Headlight failure not fixed - problem is found on ALL internet forums as well as NHTSA website, but dealer claimed, for the fourth time, they could not duplicate.
Oct 2010 77000 mi	Sold with headlight problem not resolved.

Audi A4 in California, United States Jul 2009 - Jun 2011
Dec 2009 60000 mi US $120	Wiring harness for turn signal needed to be replaced

Audi A4 in British Columbia, Canada May 2016 - May 2019
Jul 2018 95480 mi C $350	Replaced front ROTORs and PADs. Pads had 6mm material left, but brakes pulsated. Rotors were worn unevenly. Suspect that car dealer where vehicle was purchased 2 years ago replaced pads only without replacing the rotors (which wear out together in every VW/Audi built in the last couple decades, and need to be replaced together)
Aug 2018 99200 mi C $390	Replaced passenger side XENON HID BULB of type D1S. Bought for $99.99 @ Canadian Tire. Because low-beam was burnt out. Original said "Philips". Replacement came in a Sylvania box, but lamp is OSRAM. Is so identical to Philips that I'm sure that both came out of the same factory. The window regulator was shot, as indicated by "crunchy sounds" when operating the power window. rnThe regulator for the Audi includes the entire window frame, mechanism, stainless-steel cables, and plastic pulleys. rnThe parts are pricey (CAD$341 from Audi -- there are no cheap Chinese knock-offs) but labour is very low, because its all one, pre-assembled unit. rnKelly and team at Sun Creek did it for around $400 plus tax. rnAt an Audi dealership it would have been double that price.

Audi A4 in Tennessee, United States Aug 2014 - Jul 2018
Oct 2014 103000 mi US $65	Replaced spark plugs and cylinder 1 ignition coil
Jan 2016 128000 mi US $90	Engine light, cooling system. Failed injector coil pack
Oct 2017 160000 mi US $30	Replaced purge valve
Nov 2017 162000 mi US $35	Failed Ignition Coilpack
Jan 2018 167000 mi US $1475	Valve cover seals, front crankshaft seal, camshaft seal, timing belt and water pump. Refill coolant, oil and filter change.

Audi A4 in Finland Feb 2008 - Mar 2010
Mar 2008 32240 mi	During the winter there was a strange noise coming from the motor when idle. Was told by the repair that is nothing dangerous and can be fixed in the next 60.000km repair. Had however some problems with the warranty since it was expired one (1!!!) day ...
Jun 2009 54560 mi €500	Wrong spark plugs installed in the shop. Caused one or more coil packs to fail and eventually also the motor management fuse. Misfire and a broken cat.
Jan 2010 66340 mi €750	PCV valve replaced due to CEL + unstable idle. Problem fixed.

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Audi A4 in British Columbia, Canada Sep 2016 - Apr 2017
Sep 2016 101060 mi C $500	CV boot was torn

Audi A4 in Ontario, Canada Jul 2010 - Sep 2016
Aug 2010 40920 mi C $213	Replace PCV valve and gasket Slow and irregular idle when cold first noticed last winter not fixed by replacing coils (as per recall) No CEL Broken window regulator (driver door). Replaced under extended warranty Camshaft carrier leaking oil. Install new gasket and sealants. ?consequence of previous warranty repair by dealer. Repaired under extended warranty
May 2011 45880 mi C $2200	Camshaft carrier leaking oil. Install new gasket and sealants. ?consequence of previous warranty repair by dealer. Broken window regulator (driver door). Replaced.
Mar 2016 78120 mi C $3400	Clutch and flywheel replacement

Audi A4 in Washington, United States Apr 2009 - Mar 2014
Jul 2009 33500 mi	Front wheel bearings started producing "click" noise at speed, dealer replaced both wheel bearings under warranty.
Aug 2010 46000 mi US $216	Car sputters constantly near 1K RPM. Pressure Regulator Valve, Gasket, and Breather tube (vent hose) replaced. 1hr labor, $109 in parts.
Mar 2011 53000 mi US $400	Cam follower on fuel pump was worn, replaced by indi shop. Cam shaft also shown wear, not yet replaced, waiting for Audi response.

Audi A4 in Utah, United States Jan 2016 - Sep 2024
Sep 2016 150000 mi US $20	Replaced rear calipers, as the parking brake wasn't operating correctly and had stuck slightly. Slight oil leak from back of engine head. Oil leak appears to have been coming from vacuum pump.
Jun 2017 157000 mi US $240	Replace fuel filter and fuel pump. Fuel filter had never been changed, after changing a CEL came on for too low of duty cycle on fuel pump. It was only because of the filter change, but researched it more and found out how to read the duty cycle in VAGCOM and it was actually reading around 76% at idle. Deciding to preventatively change the pump although it appeared to work fine. New fuel pump is around 50%. I believe the pump had premature wear due to the fuel filter never being changed.
Nov 2017 163000 mi	Cleaned carbon deposits on intake valves. Replaced oil filter housing that leaked in very cold weather.
Sep 2024 203000 mi	Rear sunroof drains leaking a small amount of water into rear cargo ceiling area. Removed rear trim, lowered headliner slightly and applied glue to drains.

Audi A4 in British Columbia, Canada Feb 2016 - Mar 2016
Mar 2016 81220 mi	Rear right tail light assembly - shorted wiring causing lights to not work

Audi A4 in North Carolina, United States Sep 2015 - May 2017
Mar 2016 126000 mi US $1200	Engine not coming to temperature, needed thermostat replaced.
Jun 2016 127000 mi US $2700	Lost oil pressure in engine. Oil pump failure and chain broke. Part alone was almost $1400. $300 just to diagnose and identify extent of failure. Remainder to handle repair/replacement of new part, fluids, etc...

Audi A4 in Minnesota, United States Mar 2011 - Aug 2014
Aug 2013 127000 mi US $1650	Power steering pully loose, took out fan belt. Power steering pump needed to be replaced as well as fan belt
Jan 2014 121700 mi	Heating element burned through the leather seat on driver's side. Report performed by dealer for Audi. Heated seat now disconnected.
Apr 2014 140700 mi	left rear turn signal usually doesn't work. Wiring issue identified. Will cost approximately $700 to fix.
Aug 2014 144000 mi	Electrical issues with heated seat and turn signal never fixed.

Audi A4 in Ontario, Canada Sep 2013 - May 2017
Nov 2013 124620 mi C $90	Replaced HID Bulb and 2 small lamp sockets
Jan 2015 156240 mi C $4000	Exhaust cam and position sensor
Mar 2015 157480 mi C $600	Replaced DS front Wheel Bearing
May 2015 160480 mi C $500	Replaced passenger side wheel bearing & Oil change
Oct 2015 168920 mi C $389	Passenger Window Regulator
Feb 2016 176600 mi C $50	Bad License Plate lamp assembly

Audi A4 in Florida, United States Jun 2008 - Mar 2010
May 2009 53000 mi	I had the cam lobe wear issue dealt with by Audi under warranty. Would have been a $1000 fix I believe. It was in for 3 days in May 2009 for this fix, and I can't say for sure that it has completely been resolved. May need an aftermarket fuel pump.

Audi A4 in California, United States Sep 2008 - Mar 2014
Jul 2009 46000 mi	door to glove compartment broke, fixed under warranty
Nov 2010 66000 mi US $860	motor controlling valves failed
Dec 2010 68000 mi US $300	Turbo blow off valve replaced
Jan 2011 69000 mi US $180	Short in audio head unit drained battery. Dealer diagnosed bad MMI unit (radio/navigation) and gave 3,400 estimate to replace. I declined and asked them to disconnect unit. Went to independent car stereo store for replacement.

Audi A4 in California, United States Aug 2009 - Mar 2018
Sep 2009 53000 mi US $75	Clutch Pedal Position switch failed, diagnosed and replaced myself
Jul 2014 94000 mi US $400	Driver Door cable snapped inside door, couldn't open door from inside. Cable replaced.
Oct 2014 98000 mi US $98	Boost leak, vacuum line cracked, replaced.
Apr 2017 128000 mi US $500	Sunroof rattle, repair not successful.

Audi A4 in New York, United States May 2013 - Jun 2022
Mar 2014 64000 mi US $3115	Low Oil Pressure in cold temperatures (<10F), ignored warning indicator. Towed. Long block replaced. I think it was caused by ice crystals forming on the oil pickup screen. Audi has a TSB, 170825 (issued 11/21/2008). They revised the oil pump intake pipe.
Aug 2016 88000 mi US $120	Drivers side front wheel bearing replaced
May 2017 95505 mi US $20	Center muffler hanger broke from muffler, added stress to rusting midpipe clamp and clamp eventually failed. Replaced clamp, repaired exhaust hanger
Dec 2017 102000 mi US $560	Washer fluid sensor and pump replaced by dealer. Had sensor issues due to Rain-X; also had the oil sensor re-wired due to DIS showing an issue with the sensor- dealer diagnosed wiring issue and replaced at no charge; dealer replaced headlight bolt due to user error (lost the retaining clip)
May 2018 106400 mi US $185	Rear caliper was sticking, pins were cleaned/greased, piston retracted. Symptoms persisted, caliper replaced.
Sep 2021 131000 mi US $900	Mid muffler pipe rotted. replaced with aftermarket full SS as it was roughly the same price as OEM mid muffler parts.
Apr 2022 135000 mi US $400	Front passenger side wheel bearing needed to be replaced

Audi A4 in Texas, United States Mar 2009 - Dec 2017
May 2009 40000 mi	Headlight was flickering and going out. Dealership replaced bulb because of TSB.
Jan 2012 73000 mi US $2200	Clutch was replaced. CV boot leaking grease.
Dec 2017 180000 mi US $1000	Rear timing chain broke and needed replacement.

Audi A4 in New York, United States Sep 2007 - Aug 2019
Dec 2007 18000 mi	Check engine light came on, flashing and vehicle running rough. Restarted vehicle, running ok, check engine light on solid. Called dealer and brought it right in. Found loose connection to one of the ignition coils. Problem has not returned.
Sep 2008 33000 mi	Check engine light came on, vehicle ran fine. Made an appointment for next day. Problem found to be electric motor that runs the flapper for variable intake runner. Dealer had part in stock, was replaced on the spot.
Jul 2010 60500 mi US $80	High Pressure Fuel Pump Cam follower replaced. Original one was in bad shape.
Apr 2011 71000 mi US $80	Loss of power at high load. Replaced fuel pressure sensor on high pressure fuel pump. There was a TSB for this part. This lead me to the problem.
Mar 2012 79000 mi	Issues related to high pressure fuel system where fixed. High pressure fuel pump, intake camshaft and fuel pressure sensor were replace. Also replaced intake actuator and PCV valve.
Oct 2014 97200 mi US $350	Replaced timing belt, water pump (still working), thermostat (not working, stuck open), timing belt tensioner, acc belt.
Aug 2015 104600 mi US $130	Front left wheel bearing replaced due to noise.
Jan 2018 120000 mi US $70	Replaced cam timing solenoid because it was leaking oil externally and set a check engine code
Sep 2018 124000 mi US $181	Middle resonator hangers no longer attached to resonator. Replaced with aftermarket direct fit piece that requires a little cutting.

Audi A4 in New York, United States Jun 2017 - Jul 2018
Oct 2017 97000 mi	found and repaired 2 broken electrical connectors in the engine bay. AC has been repaired.

Audi A4 in Colorado, United States Dec 2006 - Oct 2013
Jul 2012 70700 mi US $450	Master slave cylinder needed to be replaced
Nov 2012 75100 mi US $150	Rear wiper mechanism fell apart.
Feb 2013 77700 mi US $800	Losing fuel pressure causing the check engine light to come on.

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Audi A4 in Florida, United States Sep 2008 - Jun 2018
Sep 2010 42000 mi	Headlight has intermittent failure (adaptive HID lights). Occasionally turns itself off, but relights when I turn lights off and on again. Audi shop proposed to replace unrelated part so I declined repair.
Jun 2011 56000 mi US $240	Replaced HID headlamp due to intermittent malfunction. Problem with ignitor, which is integral with bulb for this design.
Jan 2012 64000 mi US $500	xenon headlight bulb exchange due to intermittent failure (prob. related to voltage regulating component integral with bulb). fault code (Check engine light)
Apr 2013 82700 mi US $400	valve cover gasket replaced ignition coil failed, required replacement of coil. A recent recall was issued for this part but I don't live near a dealer so I had it replaced out of pocket.
Feb 2015 108000 mi	repair of glovebox door: door hinge broke when my 6 yo got something out of it, unclear what they might have done to cause this, signs that a crack was developing earlier.
Jan 2016 85300 mi US $900	vacuum pump valve cover gaskets
May 2017 136000 mi US $2000	replaced bushings for suspension members recharge fresh tires

Audi A4 in Washington, United States Jul 2009 - Mar 2010
Dec 2009 41000 mi	Passenger light ballast(?) replaced

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Audi A4 in Ontario, Canada Sep 2015 - Sep 2019
Sep 2015 97340 mi C $400	Dismantled engine to clean carbon and oil deposits on intake valves.
Oct 2015 98340 mi C $200	Defective wheel bearing on the passenger side
Jun 2016 108500 mi	Rear window wiper was not functional due to water leaking into bearing. The wiper motor assembly was removed and modified so oil could be injected into bushing/shaft assembly. The motor was operated until it ran smoothly.
Apr 2017 122760 mi C $250	Front end developed noise over the winter. Worst noise was from driver's side front bearing. Required replacement but took a long time due to seized and corroded fasteners and components. After the drivers side was repaired, it was apparent that the passenger side front was defective as well. Once parts were obtained, that side was replaced.
Jul 2017 122760 mi C $2000	Flex pipe on RHS is broken. Estimated parts cost is $1500 alone plus $500 labour. Yikes. Intake flaps on one bank are stuck closed. Need to dismantle intake assembly to check problem repair-ability, which at the least requires $100 in gaskets, even if nothing is done. Valve cover gaskets are leaking oil again. The leak is bad enough to fill the spark plug wells causing misfires.
Oct 2017 125860 mi C $450	Rear brakes were making a grinding noise. Investigation revealed metal on metal. Rotors and pads were destroyed, so required replacement. Further investigation revealed a defective caliper, which required replacement. Flex hoses to calipers were at end of life so replacement required. Rusted brake lines made repair difficult. E-brake cable was disconnected and had to be reconnected inside car to e-brake handle. Full brake system bleed required to purge air from entire system.
Aug 2018 135160 mi C $450	Front rotors were at wear limit. Replacement required. Front pads were worn unevenly so the decision was taken to replace them. Caliper slides were cleaned an re-lubed as part of the maintenance.
Oct 2018 137020 mi C $400	Defective ballast on the HID light required replacement. To remove the head light assembly, the bumper cover must be removed. Some body work was part of the process when rust was discovered under body panels.

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Audi A4 in California, United States Feb 2010 - Jun 2018
Dec 2011 74000 mi US $100	CEL as result of P2099 Code "underboost condition". Replaced Diverter valve with updated "D" variant that uses a piston instead of a flimsy rubber diaphragm.
Aug 2013 82300 mi US $25	Check engine light. Bad Engine Coolant Temperature sensor resulting in abnormal operating readings in temp gauge in cluster.
Jul 2014 84000 mi	TCM failure. Covered under extended warranty from class action lawsuit involving TCM and components failing on CVT transmissions.
Sep 2015 86000 mi US $1600	Replace thermostat as result of code #08577 thrown. Discovered Waterpump developed a coolant leak. Prompted to do a timing belt job early to save on the labor costs involved with job. Replace drive axle assembly due to leaking outer boot.
Oct 2015 86300 mi US $25	Drivers side master switch cluster malfunction. Causing child window lock to be engaged all the time. Replaced with chinese knockoff for $10. Broke several retainer clips when removing door card. Replaced with several knockoff clips.
Nov 2015 86000 mi US $50	No MIL. Check Cam follower as preventative maintenance. Black finish completely worn off. Replaced with INA cam follower @ 86k miles. No damage to cam lobe. Inspect HPFP, Approaching expiration of extended 10 year warranty (2016)
Feb 2016 88600 mi US $120	Mis-fire on cylinder 4.Causing blinking CEL engine vibration and rough running. Replaced all 4 coil packs and new sparkplugs.Earlier set was replaced under recall.This is third set for this car. Autozone coilpacks with lifetime warranty
Dec 2017 100000 mi US $1000	Random misfires after driving for about 30 minutes. All coil packs replaced under lifetime warranty. Intake removed and intake valves manually scraped and cleaned to remove carbon buildup. So far mis-fires have been resolved and have not returned even after extended driving periods.
Mar 2018 102000 mi US $400	CVT bucking, slipping from standstill. Burning smell. Lower CVT oil cooler hose had blown, bleeding out atleast 5 quarts of CVT fluid on the roadway. CVT oil got on the exhaust which resulted in the burning smell. Replaced lower cvt oil cooler hose (passenger side) and 5 quarts of TOTAL cvt fluid resolved issue. Really thought I was going through my second bad TCM.

Audi A4 in Virginia, United States Jun 2011 - Jul 2012
Jul 2012 71000 mi US $980	Fuel pump needed replacement. Fuel pressure was low.

Audi A4 in California, United States Feb 2006 - Apr 2014
Mar 2006 80 mi	Replace defective A/C condensor
Mar 2007 8100 mi	Replace wheel center caps due to peeling paint
Jul 2008 22000 mi	Faulty crankcase ventilation valve.
Sep 2008 22000 mi	XM Radio quit working. Replace XM Radio module.
Oct 2008 23000 mi	XM Radio Module replaced
Sep 2012 58000 mi US $1200	Replaced both motor mounts Replaced battery
Jun 2013 65000 mi US $1585	Replace water pump, thermostat, timing belt, tensioner. The coolant system thermostat was faulty and triggered the MIL light. The low coolant light came on and the water pump was found to be leaking.

Audi A4 in Alabama, United States Nov 2009 - Nov 2011
Apr 2010 46000 mi	Replace coil packs.
Jul 2010 49000 mi US $85	Busted coolant hose.

Audi A4 in California, United States Mar 2009 - Sep 2016
Jul 2009 44000 mi	Cylinder 3 & 4 coil packs bad; turbo recirculation valve bad
Dec 2009 53000 mi US $85	PCV unit bad or leaking
Feb 2010 55900 mi	Defective coil pack (#1)
Apr 2010 60000 mi	fuel level sensor not reading correct fuel level
Nov 2010 72300 mi	Faulty fuel pump & sticking N80 purge valve
Mar 2011 79000 mi US $85	Transmission control unit failure.
Nov 2011 96000 mi US $30	Coilpack went bad
Feb 2012 102000 mi US $40	Bad coilpack
Sep 2012 114000 mi US $1700	Mild overheating. Replaced timing belt & tensioners, thermostat, coolant flange, coolant temp sensor and flushed cooling system.
Jun 2013 128000 mi	Coil pack went bad

Audi A4 in Puerto Rico Jul 2016 - Jun 2017
Feb 2017 72000 mi US $362	Changed sensor & Oil change etc.

Audi A4 in California, United States Mar 2011 - Jan 2016
May 2011 43042 mi US $203	Replaced Breather Valve Replaced Breather Valve. Check Engine Light, Shaking of car.
Aug 2014 60300 mi US $318	Tear in the Turbocharger Recirculation Valve. Check engine light.
Jan 2016 55000 mi US $130	Ignition coil failure / replacement . Towed

Audi A4 in Ontario, Canada Nov 2008 - Jun 2018
Jan 2009 44640 mi	Drivers side front speaker replaced. Left front speaker was replaced under warranty
Jul 2010 52700 mi	Timing belt snapped due to a seized bearing; also damaged cylinders and AC
Oct 2011 66960 mi C $80	N80 valve
Feb 2012 67360 mi C $1100	Transmission cooling line burst
Jun 2013 73780 mi C $350	Skid plate
Dec 2013 78120 mi C $55	CEL indicated problem with TCM (transmission control module malice replaced by dealer
Jul 2014 83700 mi C $1800	CEL was on; replaced several parts
Aug 2015 102600 mi C $3400	Leaks and knocking. Replaced engine.
Jun 2016 108500 mi C $350	Fuel pressure sensor
Jan 2018 112840 mi C $100	Trunk latch

Audi A4 in Florida, United States Feb 2008 - Jul 2014
Jan 2010 52000 mi US $50	Turbo vacuum switch and a sensor were replaced.
Feb 2010 52000 mi US $800	Two blown Liquid filled engine mounts were replaced after I noticed a leak. It was noticed when lower bushings were replaced under warranty. Control arm knuckle was cracked by the indie shop that installed my coilovers. Control arm cracked.
Nov 2010 65000 mi US $50	Cam shaft was replaced due to an emissions error. Oil change also performed. Related to my earlier CEL but was not diagnosed. The CEL came back on and thus time they replaced the low pressure fuel pump.
Jan 2011 67000 mi US $340	Coil pack went and Pep Boys grossly overcharged me for one coil and labour -$340. I replaced all 4 the next day off $160.
Oct 2011 78000 mi US $300	Vacuum leak that affected idling.
Mar 2012 82000 mi US $2000	Computer in the transmission, serpentine belt and speed contol sensor we're replaced.
May 2012 83400 mi US $940	Motor mounts and snub mount replaced.
Sep 2012 87000 mi US $280	Coolant flange was deteriorating and needed to be replaced. Coolant hose and temp sensor was also replaced. New coolant added.

Audi A4 in Florida, United States Sep 2011 - Jun 2013
Oct 2011 65372 mi	Cooling Fan repair to fix incorrect service that was previously performed. Cooling Fan repair to fix incorrect service that was previously performed.
Nov 2011 65972 mi	Front wheel bearings needed to be replaced.
Mar 2012 69000 mi	Had to replace the O2 sensor. Arm rest latch was broken and the arm rest would not clasp shut.
Apr 2012 69300 mi	Engine repair.
Aug 2012 71500 mi US $1068	Needed to replace all engine mounts (left, right, and stop mounts). Oil pressure sensor needed to be replaced. Spark plug and Direct Ignition Coil needed to be replaced.
Oct 2012 72000 mi	Replaced two more coil packs (Direct Ignition coil), all belts, all fluids, and other servicing as needed for 80k mile service.

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Audi A4 in Wyoming, United States Feb 2008 - Mar 2016
Aug 2008 27000 mi	Coil pack on one cylinder went bad. Car was missing and had no power.
Apr 2009 34000 mi	Trunk quit latching. Problem was first only present in cold weather but became persistent. Latch was replaced under warranty.
Aug 2009 38000 mi	Crankcase filter clogged, check engine light came on, replaced, light off, much happier wife
Apr 2012 65000 mi US $450	Oil leak on valve cover, vacuum leak, idling rough, check engine light on. Repaired leaks, new plugs & filters,
May 2012 65800 mi US $500	Check engine light, emissions problem, vacuum leak
Jun 2012 67000 mi US $500	Turbo bypass valve was faulty, low power, rough idle. Once repaired the car runs better than ever.
Oct 2012 70300 mi US $1200	A/C wasn't developing pressure - compressor replaced. Problem solved.
Jul 2014 86700 mi US $4200	Front Sway Bar Bushings replaced from wear Engine mount leaking fluid - replaced

Audi A4 in Washington, United States Sep 2014 - Sep 2020
Oct 2014 95200 mi	2.0T engine Cam follower

Audi A4 in Massachusetts, United States Dec 2013 - Jan 2015
Nov 2014 103900 mi US $700	Dead battery. Would not start. Dead starter motor.
Dec 2014 106000 mi US $700	Calipers seized up and would not release. Brakes overheated.
Jan 2015 106000 mi US $130	Oil pressure light comes on. Engine has oil and pressure tests show no actual problem. Sensor replaced but warning light persists.

Audi A4 in Ontario, Canada Dec 2006 - Jun 2015
Dec 2006 18848 mi	Accelerating on highway, power would cut for a couple of seconds and then resume. Check engine light appeared. Dealer is replacing camshaft and associated parts.
Jan 2007 18910 mi	Accelerating until approx 110km/h, power cuts for a couple of seconds and then resumes. Replacement was camshaft and related parts. A jolt while accelerating. Did not happen again but check engine light remains. One coil was replaced for misfire. Fixed Issue from december. Received another check engine light, result was a misfire they replaced one of the coils.
Jul 2009 55800 mi	Check engine light, boost control valve for turbo replaced
Sep 2011 81840 mi	Car loses power when accelerating above a speed of 70km/h. Brought to dealer, was the same issue with the camshaft follower being worn and a new camshaft parts. All under an extended warranty by audi to all cars up to 160000km/10 years.
Nov 2011 83700 mi C $200	HID headlight flickering in and out. New ballast ordered and replaced inside the headlight.

Audi A4 in Ontario, Canada Dec 2006 - Mar 2010
Jun 2006 3720 mi	Interior rattle - fixed under warranty.
May 2007 14880 mi	Cracked leather surface on driver's seat left side bolster.
Apr 2008 22320 mi	Return trip to have replacement seat cover installed.
Jan 2009 29140 mi	Pressure regulator valve malfunction resulted in check engine light. Part replaced and problem solved on same day in less than an hour.

Audi A4 in New Jersey, United States Dec 2006 - Sep 2010
Apr 2009 87000 mi US $1700	fuel sensor, serpentine belt replaced. a cam on the camshaft had to be replaced as metal part that drives mechanical fuel pump wore out and caused the cam to wear down. Cam and lifter for fuel pump had to be replaced due to wear. Fuel pump sensor was also replaced. This is a known problem with Audi 2.0 FSI engines fro 2006
May 2009 90000 mi US $1600	Replaced timing belt, water pump, rollers, etc.
Apr 2010 116000 mi US $1200	Fuel injector o ring blew. Valve cover gasket blew turbo blowback diverted valve blew
Jul 2010 122000 mi US $480	replaced 1 motor mount
Aug 2010 122000 mi US $400	CEL went on; had to replace intake valve

Audi A4 in California, United States Jul 2015 - Dec 2015
Aug 2015 109200 mi US $4286	Replaced High Pressure Fuel Pump, Sensor & Camshaft Follower (follower is a common wear item on 06-07 MY 2.0T engines, was not inspected by previous owner, caused damaged to HPFP and Intake Camshaft). $528. Replaced Intake Camshaft with Cam Chain & Tensioner (proactive). $1270. Replaced rear timing cover housing w/controller solenoid due to oil leak and solenoid error code. $720. Replace Boost Diverter Valve, common wear item on early 2.0T engines. $250. Replace Fuel Filter. $50.

Audi A4 in Massachusetts, United States Apr 2009 - Jan 2012
Jul 2009 55000 mi	DV replaced. The DV's diaphragm was ripped, loss of power and the CEL was on.
Jan 2010 US $14	Trunk latch mechanism inoperable in cold weather: on cold days if you open the trunk, it would not close and lock. Purchased the mechanism from dealer ($116) and replaced it. Took about an hour to complete the job.
Apr 2010 60000 mi US $50	CEL came up. Ran diagnostics and pulled code P310B for low fuel pressure sensor, G410 (thrust sensor).
Aug 2010 64700 mi US $200	CEL with code P0642 indicating Intake Flap Motor V157 bad. Bought IFM at dealer and replaced myself, cleared codes, so far so good.
Jan 2012 78000 mi US $800	P310B code for thrust sensor originally. Dealer ended up replacing low pressure fuel pump, fuel filter and gaskets.

Audi A4 in Ohio, United States Feb 2015 - Mar 2017
Jan 2016 98000 mi US $5600	The engine froze up and it had to be replaced. The new engine has a P2293 code for fuel pressure that we are also trying to work out. This car is bleeding me dry.
Feb 2017 110000 mi US $500	Drivers door handle could not open from the inside. Cable was replaced. ECU still thinks that fuel pressure is low when it isn't.

Audi A4 in Ontario, Canada Sep 2016 - Jun 2018
Oct 2017 109120 mi C $600	Car was stalling once in a while either idling or cruising at highway speeds and not starting when attempted once stalled. It would start without an issue when cold and would act normal for a few days and stall again. Replaced fuel pump. Initially paid $900, later refunded. High Pressure Fuel Pump failure, as indicated by scanner. But this didn't fix the issue.
Nov 2017 109740 mi C $500	Picked up the car after the repairs the day before. Dealer had replaced the gas pump, as the car was stalling for no reason while running. But it stalled again on the way home from the dealer. They found out that the low pressure fuel sensor was defective. It was replaced at their cost and the difference between the fuel pump and the sensor was refunded to me as per my request.
May 2018 117800 mi C $1200	The trunk lid had a big rust spot, rust warranty is 13 years on this vehicle, Audi Canada inspected the vehicle and found flaking paint under the passenger side front fender and passenger side rear quarter panel in addition to the trunk lid.The lid and the fender was replaced, the rear quarter panel was repainted.

Audi A4 in Maryland, United States Feb 2009 - Mar 2010
Mar 2009 62000 mi US $9500	Check engine light came on. First told it was the fuel pump sensor. Escalated to fuel pump and went on to having to replace the engine with a used one. Once engine was swapped, learned that transmission also failed and needed to be replaced. I hate AUDI3 year old car needing 10K worth of repairs and AUDI washed their hands clean. They claim it could happen to any car. This car has all highway miles and h

Audi A4 in Nevada, United States Dec 2014 - Jan 2015
Dec 2014 72000 mi US $400	Had coolant flange leak repaired than subsequent low temp reading and thermostat replaced
Jan 2015 US $850	Had oil change, new diverter valve, and cam follower checked/replaced. Found follower damaged and had to repair HPFP as well.

Audi A4 in North Carolina, United States Nov 2007 - Nov 2009
Jun 2008 30000 mi US $250	condensation fails to drain well when vehicle parked on grade leading to "wet dog" smell from vents

Audi A4 in Virginia, United States Mar 2009 - Jun 2018
Dec 2009 48000 mi	Valves for one of the cylinders were not closing completely, causing the car to shake. A new cylinder head was installed. A faulty ignition coil and throttle body were also replaced.
Jun 2010 55000 mi US $85	Relief valve to air box was stuck open. Part was replaced.
Aug 2010 60000 mi US $85	Fuel suction pump stopped working, shutting down the engine and preventing it from starting. Pump was replaced.
Oct 2011 86000 mi US $80	Part in intake assembly needed to be replaced.
May 2015 143000 mi US $300	Engine mounts replaced
Nov 2015 149000 mi US $500	Tie-rod ends replaced due to torn bushings on both sides
Jan 2016 140800 mi US $200	Satellite radio receiver replaced
Oct 2017 159000 mi	Airbag initiator replacement (Takata recall)
Jan 2018 163000 mi US $75	Heater core flush and coolant flush

Audi A4 in Alberta, Canada Jun 2015 - Jun 2015
Jun 2015	Engine vibrates excessively at idle rpm. Audi claimed it was normal.

Audi A4 in Virginia, United States Aug 2009 - May 2018
Nov 2016 89000 mi US $1900	Replaced tie ends and another part that was leaking
Mar 2018 92000 mi US $3000	coolant leak

Audi A4 in Georgia, United States Jun 2008 - Apr 2012
Mar 2009 26000 mi	Automatic Transmission shift seemed delayed but was normal turbo lag.
Dec 2009 28000 mi	Car would not accelerate past 4000 RPM. Technical bulletin on fuel pump and cams/cam follows. Fuel pump and cam parts replaced.

Audi A4 in Massachusetts, United States Feb 2009 - Jan 2012
Apr 2009 35000 mi	Bad window regulator - driver front. Standard VW/Audi problem. Fixed under warranty. Passenger front started going, 2 weeks later, in shop now.
May 2009 36000 mi US $189	Regulator for Passenger side front window.
May 2010 45000 mi	Front Driver's side window regulator re-fixed less than 12 months after original repair. Passenger Front Window Regulator. Was reflashed (I was told replaced) 12 months ago, but started clicking again. Customer relations helping to see who will pay for this repair.
Jun 2010 48000 mi US $300	Revisit after Audi of America offered to pay 40% of the cost of replacing front p-side window reg. Fixed, all done.
Nov 2010 53000 mi US $385	Turbocharger solenoid. A rubber piece had worn a hole, and the car was running a little rough and low on power.
Apr 2011 57000 mi US $360	Intake valve and purge valve replaced. Wiring loosened on one of the solenoids that reside on the engine mounts; wires reconnected.
Jun 2011 58000 mi	Trans shifting roughly from 3-2, mostly under low RPM, and intermittently. No codes on the ODB. Also had brakes checked, grinding sound under very heavy load. Told the pads/rotors looks great. Will possibly change trans fluid/filter anyway

Audi A4 in Idaho, United States Dec 2013 - Mar 2014
Jan 2014 US $250	Passenger side axle seal was replaced due to leaking.
Mar 2014 148000 mi	Repaired center console lid hinge with a generous amount of JB weld at the cracked area, then applied a new latch to the front which was made using a plastic printer. Expansion tank has a crack just above the bottom coolant line return for radiator. Crack is approximately 2 inches in length and required replacement part. Part cost is $32 shipped.

Audi A4 in Wisconsin, United States - Aug 2009
Aug 2009 30500 mi	Intake manifold flapper motor failed.

Audi A4 in Ontario, Canada Feb 2012 - Sep 2012
Mar 2012 68200 mi C $170	needed to replace the mass airflow sensor, other than that the engine is running strong.
Apr 2012 69800 mi C $340	Have to get the mass airflow sensor replaced again, plugs had to be changed also...

Audi A4 in Virginia, United States Nov 2015 - Dec 2017
Feb 2016 114500 mi US $658	P/S steering knuckle had to be replaced due to improper reinstall done by a precious independant repair shop.

Audi A4 in Colorado, United States Apr 2010 - May 2013
Sep 2011 77000 mi US $300	A leaking intake hose was found during routine oil change and inspection. Causing a turbo boost leak into manifold and oil pan.
Oct 2011 77500 mi US $175	Failed PCV valve detected and replaced. Failed PCV valve detected and replaced.

Audi A4 in Illinois, United States Jul 2010 - Apr 2015
Aug 2010 40750 mi US $125	Passenger fog light. Foglight light replacement. Purchased part online and dealer fix for under $75. If dealer purchased the part and fix the foglight it would cost $200.
Apr 2011 49000 mi US $400	Headlight dip issue. Right
Sep 2011 56000 mi	Headlight replacement, new LED bulb.
Nov 2011 58000 mi US $200	Turbo recirculation valve PCV Valve
Sep 2012 69000 mi US $250	Window regulator driver side front window broke.
Jan 2014 89000 mi US $1000	Engine mounts replaced, both side. Right side failed.

Audi A4 in New York, United States Nov 2010 - Oct 2011
Mar 2011 92000 mi US $500	Clunking noise when turning
Sep 2011 99000 mi US $200	Diverter valve diaphram torn, replaced valve

Audi A4 in California, United States Nov 2009 - Feb 2011
Nov 2009 46000 mi	Dipped headlight evaluation, no repair done.
Dec 2010 57000 mi	Sunroof drain clogged, water in passenger backseat seatbelt.

Audi A4 in Malaysia Oct 2011 - Jul 2018
Dec 2011 117800 mi $400	Replaced the HPFP and cam follower. Discovered worn camshaft. I replaced the intake camshaft and head gasket.
Jan 2012 118100 mi $300	Then I replaced the thrust sensor and druck sensor for the P310B/ 012555 issue, but still P310B fault. No CEL or fuel cuts happened. Ordered Rear Fuel Pump, hoping this would cure the P310B fault code.
Feb 2012 118700 mi $300	Replaced rear fuel pump, light out.
Jun 2012 120900 mi $600	Replaced the right side Driveshaft. As there are juddering when acceleration especially from 1st to 2nd gear. Car was running rich, mechanic recommended to replace both the Lambda sensors (front and rear) as the car age is already 6 years old.
Jul 2012 121900 mi $375	Replaced Front Left CV Boot as Grease leak was found at the drive shaft
Jun 2013 134540 mi $180	Did my 10k service and same time replace my Fuel Flap Actuator and also the N80 (EVAP Purge Valve).
Oct 2013 136400 mi $200	Had problem with Boost not passing 4psi, my regular boost was 17psi. This only happens when the car is warmed up. After 2 days of troubleshooting and testing as no fault codes, found out that the N75 wastegate actuator valve is faulty.
Dec 2013 136400 mi $600	Starter failed after replacing a new battery
Mar 2014 138880 mi $500	Replaced the left side front knuckle @ wheel bearing housing and also subframe bushes.
May 2014 140400 mi $900	Replaced both Coolant Fan and Air Cond Fan and also the Control module for this. Problem was due to sudden lost of Fan power to both units.
Jan 2015 139200 mi $1000	Changed my radiator as it was leaking. Replace both left and right engine mountings. Replace both left and right transmission mountings.
Jul 2016 164920 mi	Replaced my front both Axle and also the driveshaft. Due to shuddering during acceleration.

Audi A4 in Minnesota, United States Sep 2010 - Sep 2017
Oct 2010 140800 mi US $1373	Cam follower failed, taking other parts with it. Replaced the camshaft and cam lobe, seal rings, adjuster, follower, gaskets, and housing. $4,000 total, but split three ways with Audi and the dealer. Coils, breather valve, HPFP (damaged by cam follower failure).
Oct 2011 171000 mi US $6900	Car was making slight noise. Upon inspection it was found that a bolt had been sheared off in the engine and a new engine would be needed.
Apr 2013 209800 mi US $1063	Thermostat replaced. Rear brake lines replaced, brakes flushed.
Sep 2015 265000 mi US $1500	Inner and outer toe rods replaced. Pressure regulator replaced
May 2016 285000 mi US $1600	Power steering rack replaced
Jul 2016 292000 mi US $1600	Alternator failed, steering fluid line rupture
Dec 2016 301000 mi US $280	Spark plugs and new coils

Audi A4 in Ontario, Canada Nov 2009 - Nov 2012
Jan 2010	recall for ignition coil O2 sensor replaced
Jun 2010 42160 mi C $110	check engine light went on problem with clogged air intake and ignition coil
Oct 2010 45360 mi	yellow check engine light on problem with intake manifold repaired on second attempt
Dec 2011 58900 mi C $150	failed thermostat replaced
Aug 2012 63800 mi	broken camshaft damaged engine which waas replaced by Audi!

Audi A4 in Illinois, United States Oct 2011 - Mar 2014
Jul 2013 57000 mi US $2000	Check engine light on. Lost communication with TCM. Transmission in limp mode. TCM replaced
Feb 2014 57000 mi US $1211	Engine mount replaced, transmission fluid change / filter kit.

Audi A4 in Texas, United States Dec 2014 - Mar 2015
Feb 2015 94900 mi US $650	Front lower control arm bushings were failing; replaced the entire control arms. Initially took it in for bad vibrations which turned out to be a shredded belly pan.

Audi A4 in Ontario, Canada Apr 2009 - Jul 2018
Aug 2009 53320 mi C $2900	Locking system replaced. engine air intake issue resolved new rear brakelights
Jun 2010 65100 mi	Engine gasket replaced
Sep 2010 67580 mi C $1300	Alternator failed - repair required replacement alternator and battery
Mar 2013 89900 mi C $700	Check engine light. Replaced engine sensor. Airbag sensor also bad, will have to return. Airbag sensor replaced. After this trip both sensors failed again.
Jun 2013 93000 mi C $900	Emissions sensor out airbag sensor
Oct 2014 108900 mi C $800	There was a leak of coolant - this was sealed.
Dec 2014 110980 mi C $1000	Another coolant leak appeared over a week after the first was repaired - needed to be found and repaired
Oct 2015 119440 mi C $2500	Oil leak in cylinder - repair required.

Audi A4 in Michigan, United States Jun 2014 - Jan 2021
Oct 2016 141000 mi US $57	replace exhaust flex connection engine misfire. replaced two ignition coils number 3 and 4 failed one day apart. first number 3, next day number4 also failed.
Dec 2016 143000 mi US $46	replaced 2 more ignition coils
Aug 2017 156000 mi US $4000	valve cleaning, emission system replace timing belt and water pump and thermostat
Apr 2018 162000 mi US $500	replace right front wheel bearing

Audi A4 in Ohio, United States Jul 2009 - Jul 2011
Aug 2009 17000 mi	Car brought in for scheduled oil change, tech discovered a code and replaced the faulty intake flap motor

Audi A4 in Texas, United States Nov 2011 - Jan 2012
Jan 2012 78000 mi US $90	Coil pack failure at cylinder 1, replaced all 4 coil packs.

Audi A4 in California, United States Sep 2009 - Apr 2012
Apr 2011 66000 mi US $125	check engine light came on, engine code was check and it shown some valve was open somewhere. it could go from tail pipe through to the gas tank to the engine...technician use a wrench at one of the hose in the engine and able to determine

Audi A4 in California, United States Dec 2012 - Apr 2016
Jan 2013 99000 mi US $382	Rear Output Shaft Seal
Oct 2013 105300 mi US $1200	I got my maintenance done at Pure Motorsport which included my timing belt, oil change, valve cover gasket, and cam follower. It was all preventive maintenance except for my valve cover which was leaking.
May 2014 108600 mi US $260	Battery died
Oct 2014 110300 mi US $1600	I replaced front Upper Control Arms and all suspension with new Vogtland Coilovers. Also got an alignment done. Control arms were noticeably worn because of noise and visual inspection. Stock suspension was just upgraded, not sure if it was bad.
Jan 2015 112200 mi US $1500	I had to replace the Low Pressure Fuel Pump with Relays, High Pressure Fuel Pump, and Fuel Filter because they all went out.
Apr 2016 124000 mi	The brakes would sudden not want to stop the car and the brake pedal would stick all the way out and not want to go in to stop the car while driving unexpectedly.

Audi A4 in Washington, United States Nov 2015 - Jul 2018
Mar 2016 97000 mi US $300	Replaced wiring harness that connects speaker, power windows, etc in driver's front door (wires in original harness had worn through causing speaker to stop working).
Jul 2018 122615 mi	Child safety window switch no longer functions. Informed by dealer that switch has failed. Decided not to repair. NOTE: I have no children and this switch has been used fewer than 20 times in the entire 12 years since purchasing this car new. Inner CV boot is cracked

Audi A4 in Michigan, United States Jun 2011 - Jun 2013
Nov 2012 54800 mi US $750	Replaced worn engine mounts
Feb 2013 57500 mi US $350	Thermostat failure with CEL.
May 2013 60000 mi US $54	Failure of diverter valve before turbo. Replaced with newer version from Audi.

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Audi A4 in Indiana, United States Aug 2014 - Jul 2015
Dec 2014 99000 mi US $900	Pressure plate broke up in pieces. Needed new clutch kit.

Audi A4 in California, United States Feb 2010 - Mar 2011
Mar 2010 67000 mi	Noise when turning... Discovered that a bolt was missing from the sway bar... dealer replaced the part and provided loaner car at 0 cost...
Feb 2011 83000 mi US $2033	came in for 85k service, technician discovered vacuum pump leak 4 upper link bushings need to be replaced as well.

Audi A4 in California, United States Apr 2009 - Mar 2010
May 2009 42000 mi	Replaced low pressure sensor for fuel pump & replaced fuel filter Glove box hinge broken replaced and fixed

Audi A4 in Ontario, Canada Feb 2009 - Jun 2011
Mar 2010 68820 mi C $289	all 4 ignition coils went bad due to water damage, not recall problem, already replaced after recall
Aug 2010 79360 mi C $221	Replaced window regulator

Audi A4 in Illinois, United States Dec 2008 - Dec 2016
Apr 2008 28000 mi	Drivers's side rear seat fold-down latch was replaced.
Oct 2008 33000 mi	Window regulator on drivers door went bad.
Sep 2012 62000 mi US $250	Read seat passenger loosened driver's side airbag wires by sliding feet underneath the seat.
Nov 2012 62900 mi US $100	Replaced thermostat
Dec 2016 86000 mi US $130	Passenger side low beam halogen headlight went out

Audi A4 in Minnesota, United States Mar 2009 - Feb 2011
Apr 2009 29000 mi	Bought in early April, When detailing the engine the dealer got the ingnition coils wet, caused two of them to go bad. Dealer replaced all 4 at no cost and have not had a problem since.

Audi A4 in Ontario, Canada May 2008 - Sep 2009
Jun 2008 47120 mi	4 coil packs replaced
Sep 2008 50840 mi	front seat leather replaced

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Audi A4 in Utah, United States Mar 2010 - Feb 2018
Oct 2010 62000 mi US $75	HID headlamp shutting off and reporting as "dipped headlight" in DIS. HID element was replaced. Required removal of front bumper.
Nov 2010 63000 mi US $60	Checked and replaced Cam Follow for high pressure fuel pump. The cam follower was well worn but had not yet failed. Had it failed (hole worn into it), a replacement of the cam shaft would have been required. I check this part every 10-15k miles
May 2013 90000 mi US $1580	Replace Brake Vacuum Pump and gasket Replace valve cover gasket
Jun 2013 90000 mi US $450	Error with headlamp AFL reported. Failed component in ballast identified as culprit. Ballast replaced
Jul 2013 90200 mi US $360	Under hot operating temperatures (hot days, extensive city driving) the clutch would not stay fully disengaged when depressed while waiting at a signal light or restarting after an errand
Jun 2015 98000 mi US $54	The driver's window control switch stopped operating the rear windows and had to be replaced.
Nov 2017 123000 mi US $1800	Worn clutch was replaced. The oil filter housing had a small crack and was replaced as well.

Audi A4 in Minnesota, United States Apr 2010 - Apr 2014
Jul 2011 51500 mi US $385	Window regulator replaced on drivers door. Window would no longer roll up or down. Window regulator replaced on drivers door. Window would no longer roll up or down.
Dec 2012 59000 mi US $400	Thermostat was stuck open and car would not get up to full temperature in the winter season. Heater would not work properly, especially at idle.
Jan 2014 66000 mi US $200	Diverter valve replacement after taking into dealer for check engine light diagnosis. Diverter valve replacement after taking into dealer for check engine light diagnosis.

Audi A4 in Pennsylvania, United States May 2010 - Sep 2017
Sep 2010 53000 mi US $50	rear left brake light
Nov 2011 69800 mi US $400	Leaking water pump. Replaced.
Mar 2012 74000 mi	Hesitation under hard acceleration. Replaced cam and cam follower.
Sep 2012 81000 mi US $590	Thermostat sticking - needed to be replaced
Apr 2013 87300 mi US $313	Wipers not switching on. Tech traced issue to short in relay for wipers. Replaced relay.
Oct 2015 94200 mi US $900	replace engine mounts to pass PA state inspection
Sep 2016 97000 mi US $1261	Front passenger window wouldn't go up - replaced regulator and motor
Jan 2017 98350 mi US $526	CEL - replaced all four spark plugs and coils

Audi A4 in North Carolina, United States Feb 2010 - Jan 2011
Apr 2010 67000 mi US $400	replace ignition coils broken door open signal wire
Jan 2011 74000 mi US $2000	Replaced camshaft Replaced fuel pump

Audi A4 in Massachusetts, United States Nov 2009 - Apr 2012
Dec 2009 44000 mi	Difficulty getting into 1st gear from neutral. Difficulty getting into 3rd from 2nd.
May 2010 48000 mi	Center-right vent does not blow sufficient air like the other vents.
Jun 2010 49000 mi	Popping Noise when braking and/or turning at slow speeds.

Audi A4 in Ohio, United States Sep 2009 - Jun 2018
Oct 2012 78500 mi US $420	Replace malfunctioning thermostat.
Dec 2014 100000 mi US $1763	Engine control module failed requiring replacement.
Jan 2016 85500 mi US $1300	Replace coolant flangs
May 2016 108900 mi US $185	Replace valve cover gasket
Sep 2016 111000 mi US $192	Replace vacuum pipe
Nov 2016 111900 mi US $332	Ignition coil failure, replaced coils and spark plugs.

Audi A4 in California, United States Sep 2008 - Jul 2018
Oct 2010 101000 mi US $1100	Two check valves were replaced, plus a minor oil leak in the value cover gasket. Additionally the 105K service was performed.
Feb 2013 147000 mi US $3400	Finally replaced my clutch. Dealer said they last to about 85K normally, mine finally went around 148K. Considering I am the second owner, pretty impressive life for a clutch
Feb 2018 260000 mi US $600	Vacuum leak in emissions control housing

Audi A4 in Louisiana, United States Jul 2011 - Aug 2012
Aug 2011 79000 mi US $2000	Intake camshaft replaced, cam follower replaced, hpfp replaced, timing belt replaced, water pump replaced. Noticed poor performance. Removed hpfp to inspect follower. Follower had a hole in it and hpfp shaft was pressing against the cam.
Feb 2012 83100 mi	The August repair installed the wrong cam. This took 3 months to figure out.
Jun 2012 86000 mi US $300	Wheel bearings changed

Audi A4 in Alaska, United States Dec 2014 - Jul 2015
Apr 2015 150300 mi	Leak Detection Pump replacement.

Audi A4 in Ohio, United States - Jan 2008
Feb 2007 15000 mi	Water pump replaced
May 2007 25000 mi	Pressure Control Valve (PCV) replaced
Jun 2007 30000 mi	Diverter Valve replaced
Jan 2008 55000 mi	Pressure Control Valve (PCV) replaced

Audi A4 in Saskatchewan, Canada - Nov 2008
Nov 2008 48980 mi	Front passenger seat sensor Intake flap motor

Audi A4 in Bolivia - Aug 2011
Aug 2011 109740 mi $150	Engine cooling system (radiator, water pump, thermostat, heater core, etc.), repair

Audi A4 in Colorado, United States Dec 2016 - Jan 2017
Jan 2017 109000 mi US $5600	Previous mechanic neglected to repair all faults in motor after camshaft/follower repair. Oil pump balance shaft was damaged and caused engine failure after "repairs" were complete. Don't go to Dave's European in Denver. New long block.

Audi A4 in California, United States Oct 2015 - Jan 2016
Jan 2016 110000 mi US $1000	New CV axles were needed. Major Tune up (fuel filter, spark plugs, new fluids etc).

Audi A4 in Oregon, United States Jul 2009 - Nov 2017
Aug 2009 38000 mi	Right headlight intermittent failure. Bulb replaced on second visit. Car was purchased as CPO and the problem was dicovered on the first day so the dealer covered the problem.
Dec 2012 66000 mi US $345	Engine temperature per the gauge was not reaching full temperature. Diagnosed as thermostat not closing, replaced by dealer.
Oct 2013 72500 mi US $36	One of the two clutch switches failed causing a non-operative cruise control and resulting in a drivability issue. The top switch needs to function or the engine holds revs while shifting. Quick replacement, takes about 10 minutes.
Feb 2015 83000 mi US $350	Driver's side motor mount was leaking, dealer replaced the one side. While in for an oil change the mechanic recommended I have the high pressure fuel pump inspected. Pump was removed/inspected and the cam follower had a hole worn through it. Pump, follower, cam shaft were all replaced. No charge to me.
Nov 2015 89500 mi	When the weather turned cold the trunk wouldn't latch. It was an intermittent problem that came and went. I removed the latch assembly, cleaned it and added grease. Works perfectly now.

Audi A4 in Pennsylvania, United States Jul 2015 - Mar 2020
Oct 2015 110700 mi US $25	Replaced bad coil pack.
Feb 2016 116000 mi US $75	Had an issue with another coil pack and just replaced the other 3 packs, it took longer to drive to the nearest Autozone then it did to replace them.
Jun 2016 121000 mi US $25	Replaced the Vapor Canister Purge Solenoid which was creating difficult starting and check engine light
Sep 2017 141000 mi US $1600	variable cam adjuster sprocket failed, also replaced the timing chain and adjuster while the back end of the engine was apart.
Dec 2017 147000 mi	Replaced airbag under warranty
Jan 2018 148000 mi US $25	Replaced 2 more coil packs, the previous coil packs only lasted about 2 years.

Audi A4 in Colorado, United States Jul 2009 - Aug 2012
Jul 2009 76269 mi US $842	Cam follower worn through, which damaged High Pressure Fuel Pump. Both replaced. Also had boost control valve replaced due to fault codes while car was in for repair.
Aug 2012 138000 mi US $1371	Car was taken to dealership after previous repair to cam follower and intake cam was done by a local Audi specialist. Car's engine destroyed due to excessive wear of HPFP cam follower; which came apart in the engine causing serious damage. MIL light and oil pressure lamp came on, idling off and lack of power. Took to shop to find another cam follower had worn through causing major damage to both cams, cylinder head and cylinder wall.

Audi A4 in Belgium Mar 2011 - Dec 2013
Sep 2011 76880 mi	Engine coils repaired under warranty
Nov 2011 77800 mi	Hydraulic Engine supports leaked => replaced
Feb 2012 78740 mi €125	Battery was dead and at the end if it's lifecycle
Jan 2013 78720 mi €250	Xenon lightbulb faillure

Audi A4 in Ontario, Canada Feb 2009 - May 2011
Jan 2010 60760 mi C $98	broken bumper bracket

Audi A4 in Pennsylvania, United States Mar 2009 - Jun 2011
Sep 2009 32000 mi	Passenger window would roll down after driver rolled window up.

Audi A4 in Nova Scotia, Canada Jul 2007 - Aug 2009
Jul 2008 35960 mi	2 cm split in leather of driver's seat.

Audi A4 in Quebec, Canada Oct 2007 - Sep 2013
Jul 2009 20894 mi	Crankcase Ventilator (PCV)was replaced. There is a recall for this problem (recall CR). Symptoms: Car shudders/shakes while idling. RPM fluctuates by several hundred RPM while idling. Diagnostic scan showed multiple/random cylinder misfires. Crankcase Ventilator (PCV)was replaced. There is a recall for this problem (recall CR). Symptoms: Car shudders/shakes while idling. RPM fluctuates by several hundred RPM while idling. Diagnostic scan showed multiple/random cylinder misfires.
Jan 2010 34480 mi	Car was shaking violently. Dealer scans idicated that the diverter valve was faulty.
Jul 2012 34300 mi	Intake manifold runner & PCV replaced. Rear window safety switch broken. This prevents rear seat passengers from operating the windows. Replaced cam follower because it was worn.
Jun 2013 38440 mi C $70	There was a hole in the exhaust system due to corrosion. A portion of the exhaust system was replaced.

Audi A4 in Minnesota, United States Feb 2008 - Jun 2011
Aug 2008 29000 mi	Intake flaps were not working correctly. A common problem.
Nov 2008 32000 mi	Rear view mirror fuse got stretched and wasn't making contact anymore.
Feb 2009 40000 mi	Replaced the CAT.
Jul 2009 49000 mi	The deadly camshaft code

Audi A4 in Colorado, United States May 2009 - Dec 2012
Dec 2009 78000 mi	Timing Belt replacement, 75,000 maintenance, Oil Change, Brake diagnosis (Brake Light came on). Either pads need to be replaced or brake fluid is low in the ABS reservoir or brake reservoir.
Jun 2011 104000 mi US $1400	Problem 1 was a misfire on cylinder 4 (P0304) and a cooling system performance issue (P2181). Valve cover, spark plugs, ignition coils and coolant temperature sensor all replaced. New rear rotors and brake pads as well. Different mechanic to try to fix the misfire on cylinder 4 (P0304). Did engine diagnostics, inspected EVAP, DV, MAF sensor and intake system. Performed carbon cleaning. Replaced crankcase ventilation hose & vent, and fuel injector. Fixed

Audi A4 in Oregon, United States Dec 2006 - Feb 2011
Nov 2007 25000 mi US $205	software update, no problems noticed with vehicle.
Jul 2008 34000 mi	Power loss during hard acceleration. Unspecified software update.
Mar 2009 43000 mi	Flickering headlights, described under TSB
Feb 2011 74000 mi US $60	Engine temperature was not stable. Thermostat was purchased to repair problem but I was unable to perform the repair.

Audi A4 in Wisconsin, United States Dec 2006 - Apr 2011
May 2009 33000 mi	Faulty IRMC valve replaced. CEL cleared.

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Audi A4 in Districto Federal, Mexico Sep 2009 - Sep 2012
Jan 2010 34720 mi	Xenon lights blinking
Mar 2011 47120 mi $1000	CHANGING THE CATALYTIC CONVERTER
Aug 2012 58980 mi $5000	Multotronic failed (second time)

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Audi A4 in Costa Rica Feb 2014 - Oct 2017
Aug 2014 64800 mi $550	Oil leak from gearbox Flap intake valve fail
Feb 2015 73020 mi $1	Tandem pump gasket failure. Replace only the gasket Engine intake manifould flap failure. Replace it
Mar 2015 72540 mi $485	Change CV boot front right Change front shocks due worn shock Change front shocks due worn shock
Mar 2016 81840 mi $300	sound in turns, replace steering wheel join
Jun 2016 82460 mi $150	wear strut bearing
Aug 2017 88660 mi $305	Change glow plugs and EGR Valve. Engine mounts.

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Audi A4 in Arizona, United States Dec 2014 - Nov 2016
Oct 2015 88200 mi US $250	Power window failure driver side. Update: passenger side failed later in the month. Both wedged in up position for now.
Oct 2016 106000 mi US $150	misfire on cylinder 2 as per code reader. Replaced spake plugs and leads. appears to have solved the problem
Nov 2016 106000 mi US $1400	catastrophic engine failure related to injection system. replaced 3 injectors and cleaned entire injection system. Did not fix the problem so sold vehicle. Power windows never fixed. Nothing done, not included in cost figure.

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Audi A4 in Georgia, United States Jul 2014 - Dec 2016
Jun 2015 133000 mi US $100	AC not cooling. Found leaky component, replaced and recharged system. right low beam HID headlight would occasionally flicker. Replaced bulb.
Dec 2016 151000 mi US $600	motor munt broken

Audi A4 in New York, United States Sep 2007 - Jun 2008
Jun 2008 16000 mi US $75	Broken exhaust bracket - replacement bracket installed.

Audi A4 in Saskatchewan, Canada Feb 2011 - May 2016
Apr 2011 120280 mi C $900	Replace all fuel injectors
Jun 2011 125860 mi C $50	CV boot clamp came off, would throw the car into "limp mode" when driving in heavy rain as it triggered the ESP (electronic stability control) and then engaged the EPC (electronic power control) limiting power and RPM (limp mode)
Oct 2013 186660 mi C $65	Replaced HID headlights, it's a pain in the a##
Jan 2014 191200 mi C $700	Car was not coming up to temp, reading about 1/4 on the temp gauge instead of 1/2....this meant reduced capability for cabin heat in -40C. I replaced the thermostat and 3 main rad hoses as well as the serpentine belt while I had the car apart
Apr 2015 215840 mi C $50	Replace HID headlights... remove front bumper cover, remove headlight assemblies, install new headlights, reinstall all parts.
Jul 2015 220080 mi C $115	Valve cover gaskets leaking into spark plug cavity, also leaking on engine. Replaced gaskets.
Nov 2015 223200 mi	Oil leaking from timing chain covers at rear of engine. Removed, cleaned old gasket material off, applied RTV type gasket sealant and reinstalled covers.
May 2016 226920 mi C $630	High pressure switch defective, leaking, required replacement, then system recharge. Fixed oil leaks, cam sensor seals shot.

Audi A4 in Ontario, Canada Sep 2010 - Apr 2011
Apr 2011 67580 mi C $150	Fuel system problem. Engine light flashes

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Audi A4 in Virginia, United States - Jan 2009
Jan 2009 24500 mi	Carbon build-up in the engine. Root cause: most likely pampering of previous owner and/or improper fuel used without additives. Solution: use name brand fuel that contains the additives and techron liquid solution every 3,000 miles for the engine.

Audi A4 in Illinois, United States Jun 2009 - Dec 2014
Mar 2014 43000 mi US $1000	High pressure fuel pump

Audi A4 in Vermont, United States Sep 2011 - Jul 2014
Dec 2013 90000 mi	Intermittant headlight flickering
Jan 2014	Intermittent flickering headlight issue repaired by dealer as 'customer curtesy' after many, many complaints.

Audi A4 in Washington, United States Sep 2010 - Jan 2013
Jun 2011 62000 mi US $50	Audio/Nav system would not recognize CD player which rendered it non-functional. Fix was to remove and replace the same unit.
Aug 2012 66900 mi US $541	Oil weeps from driver side rear differential. Oil weeps from driver side valve cover gasket.

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Audi A4 in New York, United States Mar 2008 - May 2009
Mar 2009 42000 mi	Low Coolant Warning Light - noticed liquid on garage floor. Called dealer, he suggested towing to dealership. Plastic plug was found cracked and replaced.

Audi A4 in New York, United States Jul 2012 - Dec 2012
Sep 2012 64000 mi	AC was freezing up and then blowing cold air. Water got in the system during some earlier recharge. System was pumped clean and dry then recharged.

Audi A4 in Massachusetts, United States Dec 2006 - Jun 2011
Dec 2007 15000 mi	replaced cracked headlight washer fluid line
Jan 2010 23000 mi	Power steering hose clamp came loose and lost all power steering fluid

Audi A4 in Texas, United States Mar 2012 - Feb 2013
May 2012 56000 mi US $50	Rear window separated from convertible top trim.
Sep 2012 61000 mi US $1700	Rear window separated from convertible top. Leak in Oil pan. Replaced oil pan cover and seal.

Audi A4 in Virginia, United States Aug 2008 - Dec 2010
Jan 2009 24000 mi	Coolant leak repaired.
May 2009 25000 mi	Coolant leak returned a month after the previous repair, but did not have time to immediately take it into the shop.

Audi A4 in California, United States Dec 2013 - Feb 2017
May 2014 71600 mi US $1000	Shifting handle wouldn't disengage from parking.
Dec 2014 76000 mi US $600	Coolant leak, flange replaced.
Mar 2015 77000 mi US $1250	Water pump replaced again, after 18 months. It was first replaced by the previous owner before selling to us.
Mar 2016 85000 mi US $800	Third time cooling system needs repair in less than 20k miles.
Nov 2016 88200 mi US $100	Coolant temp sensor leak.
Dec 2016 89000 mi US $100	Another leak in cooling system where it connects to heating. Bypassed heating as that would have be $1,250. So no more heating ...

Audi A4 in New Jersey, United States Sep 2011 - Dec 2013
Dec 2013 102000 mi	ABS Control Unit

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Audi A4 in Alabama, United States Jun 2012 - Mar 2013
Aug 2012 53100 mi	Secondary Air Pump was reporting leak. Recvd check engine code Recvd check engine code that 3rd tail light was not operational.

Audi A4 in California, United States - Sep 2006
May 2006 7000 mi	glove box didn't latch closed
Sep 2006 10000 mi	tension strings on cloth top broke

Audi A4 in Washington, United States Jun 2014 - Mar 2016
Apr 2015 61300 mi US $800	Replace tie rod ends and a stabilizer bar. The mechanic says these cars wear them out faster than many, but this wasn't as bad as some he's seen.
Jan 2016 61700 mi US $50	Coolant reservoir cracked and leaked, replaced at home.
Mar 2016 70000 mi US $1600	Leaky valve cover gaskets. Replaced as part of larger service trip. Replaced water pump, thermostat, and coolant crossover pipe to correct temp issues. Replaced all upper and lower control arms, tie rod ends, and front struts to correct worn parts and poor steering control. Replaced worn timing and serpentine belts and related tensioners/spindles/whirly things.

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Audi A4 in Illinois, United States Sep 2014 - Oct 2015
Aug 2015 106900 mi US $2500	Thermostat, water pump

Audi A4 in Florida, United States Aug 2009 - Jan 2010
Sep 2009 49000 mi US $4500	CVT transmission failed miserably during highway driving, locking front wheels and coming to a screeching halt.

Audi A4 in Utah, United States Dec 2009 - Jun 2011
Feb 2010 36000 mi US $400	drivers side window regulator went bad at 36k

Audi A4 in Florida, United States May 2015 - Jun 2015
Jun 2015 138000 mi US $125	Valve head gasket oil leak

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Audi A4 in Oregon, United States Feb 2008 - Mar 2010
Aug 2009 71000 mi US $1740	I found a TSB that described my issue of losing power on inclines. There is a TSB 2013147/4. He did replace a sensor first, audi recommendation. Cam follower looked like A pic, cam replaced. Replaced fuel pump. Oil metal was in the filter because of issue.

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Audi A4 in California, United States Mar 2010 - Jun 2011
Apr 2010 26000 mi US $50	This would be trip 3...the ignition coil had to be replaced along with the overhead light bulb.

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Audi S4 in Oregon, United States Jul 2010 - Jul 2013
Dec 2010 61000 mi US $90	Ignition coil broke. Got flashing CEL (indicates possible damage to cats if driven). Towed to dealer and all 8 ignition coils replaced under warranty. Dealer covered $100 of tow, rest was my responsibility.
Jun 2011 71000 mi US $25	Bad bulb holder for DRL was causing excessive heat burning out bulbs in less than a day. Required replacement of bulb holder.
Sep 2012 85000 mi US $600	Had to replace front control arms. Loose steering and knocking from front end.
Nov 2012 86400 mi US $150	Changed transmission/differential fluid. Front differential was grinding in tight turns and MT was getting difficult to shift.
Jul 2013 93000 mi US $750	Creak from wheel bearings due to improper fit in hub. Had to disassemble and grease interface btw bearing and hub. Replaced wheel bearings at that time.

Audi S4 in North Carolina, United States Aug 2014 - Jun 2018
Jun 2016 106000 mi US $800	Bad axle
Feb 2017 113000 mi US $800	Driver's side axle replacement
Apr 2017 115000 mi US $6400	Timing chain failure. Replacement of chain, tensioners and adjusters.
Jun 2017 117000 mi US $2900	Air pump failure ($700 part) and main wiring harness melted in various areas ($1600 part).
Dec 2017 120000 mi US $1200	Engine mounts and oil gaskets

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Audi S4 in New York, United States Jan 2010 - Sep 2014
Aug 2011 38100 mi US $1500	Control arms Window regulator
Sep 2014 67000 mi	Bad power steering hose

Audi S4 in District of Columbia, United States Jun 2009 - Dec 2012
Jun 2009 37800 mi	Dead battery replaced under warranty
Mar 2010 40000 mi US $400	Rough ride and rough idling
Sep 2012 54000 mi US $1200	Not shifting smoothly. "slamming" into gear, especially on downshift
Dec 2012 54000 mi	Transmission not shifting smoothly, got another car.

Audi S4 in Texas, United States Mar 2012 - Apr 2013
Apr 2013 79000 mi US $900	Catalytic converters filled up. Then had to replace the high pressure steering return hose, then the power steering reserve tank.

Audi S4 in New Jersey, United States Nov 2010 - Dec 2010
Dec 2010 90000 mi US $1460	Radiator Leak Replaced driver side window regulator. Window would not move.

Audi S4 in Washington, United States Mar 2010 - Jun 2011
Apr 2010 52000 mi US $1000	Replaced valve cover gaskets, valve cover caps etc etc. Now problem of flickering headlights. Great car to drive but pain in the butt to keep after warranty. Replaced fuel pump.

Audi S4 in Oregon, United States Apr 2012 - Oct 2016
Dec 2012 74000 mi US $100	Engine not getting to operating temp due to thermostat being stuck open. Replaced thermostat. Engine gets up to operating temp.
Jul 2014 100700 mi US $25	Replaced coil pack
Apr 2016 126300 mi US $350	Replaced all front control arms, tie rods ,front sway bar links. replaced steering rack and pinion.
May 2016 127100 mi US $175	Power steering pump replaced and fluids flushed

Audi S4 in Virginia, United States Jan 2012 - Sep 2013
Mar 2012 76000 mi	Coil pack overloaded and caught fire. Replaced as a recall at no cost.
Aug 2013 95600 mi US $400	Starter failed, and had to be replaced.

Audi S4 in Louisiana, United States Feb 2016 - Mar 2018
Jul 2016 179800 mi US $160	rack & pinion to cooler line busted.
Mar 2018 202000 mi US $2000	replaced blown rack and pinion, done alignment AC compressor not engaging. hooked up computer and found high pressure switch fault. hooked up ac machine and found no Freon charge. added 1lb of Freon to system and found a leak at the high pressure switch. removed front bumper and replaced ac pressure switch, pulled system down and leak tested...all good. recharged the system and tested. working fine. re-installed bumper and finished job.

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Audi S4 in Pennsylvania, United States Oct 2009 - Jun 2011
Nov 2009 36000 mi US $975	Upper control arm bushing was destroyed, drivers side. Passenger side was still okay. Head lights flicker on and off while driving. Both head lights went out at night while driving and had to pull over. Turning the headlight switch to the off position and back on seemed to fix the problem temporarily.

Audi S4 in Michigan, United States Sep 2010 - Oct 2012
Nov 2010 88200 mi US $210	Driver's window stopped working. Advised dealer that I thought it was a short. Dealer quoted $1000 for replacing Motor, actuator, and switch. Decided not to do the repair. My further investigation revealed broken wires in the door jamb.
Dec 2010 89000 mi US $180	Ordered a new wiring harness (OEM) for driver's door, and installed it myself. Everything is now working properly.
Sep 2012 99000 mi US $730	Both upper control arms replaced (front driver side).
Oct 2012 99000 mi	Timing chain guides / tensioners failed. Dealer quoted $10,000 to repair. TEN THOUSAND DOLLARS! Will most likely have to sell the car for parts. If you ask me, this is a MAJOR design flaw. I bought this V8 so it would last! The irony...

Audi S4 in Connecticut, United States Mar 2009 - Sep 2012
Apr 2009 44000 mi	Catalytic converter replaced under warranty.

Audi S4 in California, United States Oct 2008 - Jun 2018
Mar 2012 76000 mi US $831	upper control arm bushings are torn on front suspension.
Oct 2012 77000 mi US $772	Driver side window stopped rolling up or down.
Jun 2013 80000 mi US $1000	They are worn out.
Dec 2013 85000 mi US $554	Battery went down.
Feb 2014 86400 mi US $1560	Headlights dipped on almost every turn. Needed to replace the entire headlight assembly.
May 2014 87000 mi US $120	Brake light was turned on. Brakes were being engaged automatically without being pressed. That was slowing down the car.
May 2016 105100 mi US $1100	The alignment was off for a long time. Finally it was fixed by aftermarket MOOG upper control arms.
Feb 2017 108000 mi US $2200	Power steering rack, and hoses needed to be replaced.

Audi S4 in Massachusetts, United States Jul 2013 - Jun 2017
Sep 2014 90000 mi US $285	Rebuilt front right and front axles. Inner boot torn.
Jun 2017 104000 mi US $300	Replace belt pulley and tensioner. Replace front main seal.

Audi S4 in California, United States Feb 2009 - Mar 2011
Jan 2010 US $100	Some dash and external lights stay on even when ignition is off and key is removed. This drains the battery overnight.
Apr 2010 51000 mi	Was idling rough with check engine light on, dealer replaced all 8 ignition coils under a recall. Fixed.

Audi S4 in New York, United States May 2009 - Jun 2012
Jul 2010 57300 mi	gas strut not providing enough lift to hold the hood open
Aug 2010 59000 mi US $200	glovebox lid latch replaced alloy wheel center medalion replaced two wheels 60k service performed
Jan 2011 65000 mi US $500	65k service, front pass window regulator trunk latch not latching when cold > 32degrees brake bulb blown need to remove trunk carpet to replace, drivers driving light intermittent, pass xenon headlight intermittent
May 2012 73600 mi US $1100	Starter motor failed

Audi S4 in Virginia, United States Jan 2011 - Dec 2012
Mar 2011 80000 mi US $1200	One of the fan blades got loose causing noise against the radiator, apparently is a frequent complaint(?), Fan was replaced.

Audi S4 in Alberta, Canada Feb 2011 - Sep 2013
Dec 2012 126480 mi C $1250	Fuel pump was replaced and by doing so the fuel lines cracked so they were also replaced

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Audi S4 in Puerto Rico Aug 2013 - May 2020
Dec 2013 58000 mi US $200	Bad alternator
Apr 2015 67200 mi US $200	Damage coolant flange, replaced plus all the brakes on the car
Aug 2015 68600 mi	alternator not charging, replaced myself

Audi S4 in Minnesota, United States Mar 2016 - Jun 2022
Jul 2016 161700 mi US $11500	Camshaft wear on cam follower fuel pump caused metal to circulate through engine and turbo requiring replacement of both with new long block, turbo and clutch was worn and replaced
Feb 2017 170000 mi US $530	Replaced starter
Mar 2017 173000 mi US $900	Clutch from AC compressor separated from compressor. Replaced AC compressor with recycled Grade A part, new receiver drier and orifice tube. Flushed system and recharged adding proper amount of oil.
Jun 2017 175000 mi US $30	Clutch interlock safety-switch replaced
Jul 2017 175000 mi	Starter failed 6 months after replaced by shop. New starter installed under warranty.
Nov 2017 178000 mi US $800	Aftermarket oil filter housing warped 14 months after installation of a rebuilt engine causing a significant oil leak between the block and housing. Shop didn't offer any discount for a failure so soon out of warranty (they replaced the motor). Shop forgot to bleed air from cooling system. Low coolant light came on during the trip home. Not going back to that shop.
Dec 2017 178000 mi US $175	replaced front rotors and pads

Audi S4 in West Virginia, United States May 2021 - Jun 2022
Apr 2021 100 mi US $150	Intake flap motor replaced.
Jun 2021 108 mi US $175	IFM intake flap motor again. Pre 8-22-05 B7 A4’s use different IFM than is commonly sold. You need one with no letter suffix in audi part number.

Audi S4 in Texas, United States Sep 2013 - Jan 2014
Oct 2013 69000 mi US $200	Secondary radiator coolant leak. Radiator was replaced. Headlight wiring harness cracking and deteoriation, to the point of needing replacement. Replaced headlight assemblies, bulbs, ballasts on both sides.
Nov 2013 69000 mi US $1800	Compressor failed. Replaced compressor, dryer, serpentine belt, condensor. Waterpump also was defective, was replaced.

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Audi A4 in Great Britain Feb 2010 - Mar 2014
Mar 2010 22000 mi £100	Minor oil leak from the oil filter due to improper seating of the oil filter at previous service.
Apr 2010 23000 mi £400	The age old problem of the coolant flange seal failing. Replaced along with a minor oil seal. Car properly fixed this time. If you are leaking coolant from the back of the engine block on this age / engine, then it is the flange.
Nov 2012 42700 mi £600	Alternator faulty. Replacement also faulty, no more alternators in the UK, so car at Audi garage for 6 days.
May 2013 46500 mi £500	Anti-roll bars bush failed Rear brake lines perishing
Sep 2013 49000 mi £34	PCV valve failure. Idle very poor. Appears to be a common problem easily fixed with a replacement part.

Audi A4 in Illinois, United States Jan 2010 - Jun 2011
Mar 2010 84000 mi US $120	PCV valve failed. Replaced with knock-off part.

Audi A4 in Pennsylvania, United States - Apr 2005
Apr 2005 200 mi	Replacement of remote key FOBs.

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Audi A4 in California, United States Aug 2015 - Jul 2019
Dec 2016 91000 mi US $105	PCV valve oil leak. PCV valve was replaced
Feb 2017 92000 mi US $200	All ignition coils replaced to remedy multiple cylinder misfire

Audi A4 in Minnesota, United States Feb 2009 - Jun 2011
Apr 2009 36000 mi US $100	Oil seal leak in the engine
Jul 2009 39000 mi US $50	Oil leak related to a cam shaft seal. The head was damaged around the seal so the head was replaced.
Mar 2010 49000 mi US $50	Cruise control was not working due to sticky clutch switch

Audi A4 in California, United States Aug 2007 - Mar 2014
Nov 2008 42000 mi	Check engine light came on and was resolved with a programing modification

Audi A4 in California, United States Nov 2007 - Oct 2017
Feb 2008 30000 mi	Intermittent error from "Intake Flap Motor." Dealer performed ECU flash. CEL came on again next day. Intermittent error from "Intake Flap Motor." Dealer replaced flap motor.
Jun 2009 44000 mi	Broken motor mount was replaced under warranty. Glove compartment door hinge cracked. Glove compartment door replaced under warranty. Subframe bolts found loose; tightened.
Oct 2010 56000 mi	Difficulty filling gas tank. Dealer replaced fuel tank evaporation canister. Suspension bushings worn. Parts ordered but not yet replaced. Suspension bushings replaced
Jun 2011 62000 mi	Low beam headlight intermittently goes out. Problem could not be replicated or solved by dealer.
Jul 2012 71000 mi US $730	Failing low pressure fuel pump and pressure sensor replaced.
Aug 2012 71800 mi	Failing high pressure fuel pump and camshaft Failed turbo valve Failed coolant temp sensor
Mar 2013 77000 mi US $600	Emissions sensor causing car to run rich -- replaced. Side airbag sensor malfunction - replaced
Aug 2013 81000 mi	Low presssure fuel pump replaced. Fuel pump was replaced about 12 months ago under warranty and replaced again under warranty.
Jul 2014 93300 mi	Left headlight flickers, goes out.
Oct 2014 95500 mi US $943	Worn throttle body; replaced.
Sep 2015 107000 mi US $1000	Replaced engine mounts
Mar 2016 115000 mi US $1900	Replaced fuel pump Replaced CV joint boots Replaced window regulator
Oct 2017 133000 mi US $1900	Rear hatch latch not working, replaced. Vacuum pump replaced CV boots replaced

Audi A4 in Massachusetts, United States Aug 2007 - Jun 2011
Aug 2008 105000 mi US $1075	Went in for alignment and oil change - ended up getting alignment, 4 new tires, front headlight (small bulb) and wash
Feb 2010 147000 mi	Adaptive headlights starting to flicker.

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Audi A4 in Illinois, United States May 2011 - Feb 2020
Feb 2012 55000 mi US $895	HID control unit needed to be replaced.
Feb 2013 65700 mi US $140	Brake lights would come on and stay on. Brake light switch replaced.
Apr 2013 66500 mi US $600	Power window regulator failed
Jan 2015 66500 mi US $350	Headlight bulb replaced
Sep 2016 85000 mi US $900	Starter failed and had to be replaced
May 2017 87200 mi US $5	Corrosion/arcing in taillight required cleaning and repairing plug
Nov 2017 88600 mi	Recall
Dec 2017 88700 mi	Corrosion reoccurrence in rear taillights
Jun 2018 91000 mi US $300	Passenger front window regulator replaced and window lockout switch replaced. Replace left front control arm bushings

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Audi A4 in Florida, United States Apr 2008 - Oct 2009
May 2008 35000 mi	Air Compressor was replaced under warranty. AC would not cool when car was started but would be ice cold once underway. (after higher than idle revs for a bit)
Jul 2008 37000 mi	Two ignition coil packs where replaced under warranty.
Sep 2008 39000 mi	Transmission Control Module - took more than a week to order and get from Germany. These things are matched to car's VIN number?!? A day or less to swap. Got CEL; drove straight to dealer; they took care of everything including identical car as loaner.
Oct 2008 41000 mi	Cooling steel braided lines for Turbo where kinked and leaked both coolant and oil onto manifold creating a lot of smoke. Suspect damage done in previous repair...
Aug 2009 48000 mi US $375	window regulator replaced; pricy! car 2 weeks out of warranty... dealer gave 10% discount

Audi A4 in Texas, United States Nov 2009 - Mar 2010
Dec 2009 61000 mi	Transmission Neutral Position Sensor Stop Light Turns ON after parking overnight, on lower temperatures. Cooling System Thermostat

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Audi A4 in Massachusetts, United States Sep 2005 - Sep 2017
Oct 2005 5000 mi	Keyless entry stopped working on both key fobs. Dealer replaced keys, was a known problem.
Jan 2006 10000 mi	Sound system did not work in very cold weather - would turn on but no sound came out. Dealer replaced amplifier under warranty.
Dec 2006 20000 mi	Leaked coolant in cold weather. Dealer replaced leaking engine flange under warranty.
Apr 2007 30000 mi	Brake lights would turn on spontaneously at night while the car was parked. Dealer replaced brake switch under warranty.
Aug 2008 57000 mi US $85	Check engine light was on. Scanned the codes, indicated boost pressure too low. Turbo Recirculating valve (diverter valve) diaphragm was torn. Replaced valve.
Apr 2009 71000 mi US $497	Right Front Wheel Bearing was bad. Very loud noise while driving that got worse over the past several hundred miles.
Dec 2009 82000 mi	Passenger headlight out.
Mar 2010 85000 mi US $150	Check engine light came on, car idled high. Replaced broken PCV valve
Nov 2010 95000 mi US $100	Had to replace worn high pressure fuel pump intake cam follower after finding metal shavings during oil change
Feb 2012 109000 mi US $308	Check Engine light on. Intake Manifold Control Motor (adjuster) had failed. Obtained part from dealer and replaced it myself. There is a warranty on this part for some VINs but not mine.
Mar 2012 110000 mi US $11	Timing belt replacement, including water pump and tensioner. Replaced thermostat; was stuck open. Replaced accessory belt pulleys due to excessive wear and noise. Driver's side headlight out
Aug 2013 133600 mi US $75	Code p0299. Replaced diverter valve
Feb 2015 156700 mi US $2100	Replace both front upper and lower control arms. Broken downpipe and hole in y pipe Both front power window regulators broken
Jun 2015 161000 mi US $596	Drivers side wheel bearing very noisy. Bearing was seized to hub. Replaced both bearing and wheel huv.

Audi A4 in Georgia, United States Mar 2015 - Jul 2015
Apr 2015 143000 mi US $300	Carbon buildup on intake caused repeated misfire on cyl.4, POOR performance, POOR mpg, high sulfuric-exhaust odor (NOx). Intake Cleaned, #4 fuel injector replaced, 1 ignition coil replaced, plugs gapped/cleaned Root:CARBON BUILDUP
May 2015 143800 mi US $150	Broken Headliner retainer trim piece, broken blank insert from upper center console Charge Air/Intake Hose Leak; Replaced All Charge Air Hoses & Lower PCV Hose
Jul 2015 148000 mi	CV joint needed replacement, clicking noise while turning Worn intake camshaft timing chain & tensioner causing rattle on startup and after engine reaches operating temp; Oil leak from rear vacuum pump assy; #2 Cylinder misfire as per OBD; Small vacuum leak still persists as per OBD On Board computer shows error for tail lamp failure when no bulb failure exists; Headlamp bulb assy. broken from retaining pcs causing headlamp to move freely; Coolant leak from rear of engine @ water flange;

Audi A4 in Illinois, United States Feb 2009 - Sep 2014
Mar 2009 47000 mi	Seat belt switch, push button assembly.

Audi A4 in New York, United States Sep 2008 - Jun 2011
Nov 2009 65000 mi US $1000	High pressure fuel pump cam follower face was worn completely through resulting in damage to the cam lobe. Cam and follower were replaced.
Jan 2011 89000 mi US $300	Xenon bulbs replaced to resolve intermittent headlight fault (left and right)
Mar 2011 92000 mi US $200	Rusted exhaust pipe clamp. Very noisy. Replaced clamp and cleaned up pipes. Quiet afterward.

Audi A4 in Idaho, United States Sep 2012 - Jul 2018
Mar 2016 129000 mi US $179	Diverter valve replacement Oil filter assembly housing leaking
May 2016 130400 mi US $1600	Replaced front upper and lower control arms, both driver and passenger side
Dec 2016 137000 mi US $100	Replaced PCV Leaking exhaust manifold gasket

Audi A4 in California, United States Sep 2015 - Jul 2017
Jan 2016 68500 mi US $500	check engine light on. Bank 1 misfire.
Jul 2016 73500 mi US $250	ESP light comes on after running the car less than a mile. replace the Yaw sensor. Issue resolved.
Jul 2017 84000 mi	got code P0783. Car stuck at 3rd gear after stopped in the traffic for a while. Restart the vehicle and car is shifting fine. Technician reset the error code and was told to observe if the issue recurs.

Audi A4 in New York, United States Jan 2008 - Jun 2014
Oct 2008 36449 mi	Left Brake Light and Camchain Tensioner
Oct 2009 48000 mi	Crankcase vent regulating valve(PCV).
Apr 2010 51500 mi US $50	Corrosion on Cam Lobes (Replaced Camshaft) Valve Cover (Replaced) Intake Flap Motor(Replaced TSB:2016868)
Oct 2010 57000 mi US $50	Water Pump Replaced Right Engine Mount Replaced
Mar 2011 61000 mi US $50	Front Sway Bar Links Low Pressure Fuel Sensor Brake Light Switch
Apr 2012 72000 mi US $130	Turbo Bypass Valve(Diverter Valve)Replaced with Revision D Part Number. Driver Front Window Regulator
May 2012 72700 mi US $326	Front Left(Driver) Wheel Bearing Changed. Squeaking when breaking.
Oct 2012 76300 mi US $420	In-Tank Fuel Pump + Seal + Coupling Nipple (Replaced: 8E0919051CQ, 1J0919133B, 8E0201263G) In-Tank Fuel Pump + Seal + Coupling Nipple (Replaced: 8E0919051CQ, 1J0919133B, 8E0201263G)
Dec 2012 78000 mi US $52	Trunk Latch (Replaced) Does not latch when very cold outside. Trunk Latch (Replaced) Does not latch when very cold outside.
May 2013 82400 mi US $18	Oil Cooler Gasket Ignition Coil(Cylinder #1)
Jun 2013 84000 mi US $498	Coolant Hose Flange(06D121132C:Back of engine) and related hardware. CTS, clip, small hose, x2 hoses, x2 grommet.

Audi A4 in California, United States Mar 2010 - Jun 2012
Jul 2011 70000 mi US $495	Check engine light, suddenly sluggish up hills. Replaced turbo cutoff valve. Unclog leak detection pump and replace its hose.
Nov 2011 74300 mi US $78	Diagnostic for sluggish performance. No problem found. Symptom persisted for a couple of weeks. Not currently an issue. Expect full resolution at next service (major- plugs, etc.) Installed new 'Console Armrest door Leatherette w/o mobile phone Pl' due to broken latch. Is this just Wear and Tear? -- Less than 75,000 mi., 5 years old; very well cared for; you decide. (No trim issues on older, higher mi. Acura.)
May 2012 81300 mi US $112	Repeated tail light failure. Replaced Bulb Holder (8E5 945 257 C) - $59.50
Jun 2012 83000 mi	Replace PCV, also a TSB. Fuel pressure sensor

Audi A4 in Minnesota, United States Oct 2009 - Mar 2010
Nov 2009 62000 mi US $336	Failed crankcase pressure regulating valve.

Audi A4 in Rhode Island, United States Nov 2010 - Jun 2011
Dec 2010 80000 mi US $3400	complete engine failure due to sludge build up

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Audi A4 in Colorado, United States May 2007 - Dec 2012
May 2008 63000 mi US $400	Window regulator was shot.
Nov 2008 70000 mi US $500	Fuel distributor control unit needed replacing.
Aug 2012 117500 mi US $75	Window regulator need to be replaced

Audi A4 in South Carolina, United States Dec 2014 - Dec 2014
Dec 2014 130000 mi US $50	Window regulator was broken

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Audi A4 in Missouri, United States Aug 2008 - May 2012
Nov 2008 22000 mi	Trunk does not latch. First happened in sub-freezing weather. Dealership replaced parts under warranty.
Mar 2009 26000 mi US $96	Cold start problems. Car hesitated before cranking over. Only happens in sub-freezing temp. Dealer found a TSB and reflashed ECU to a newer version. Problem solved.
Sep 2009 31000 mi US $50	Rattle/vibration from driver side window when car is moving (usually over bumps etc) or when shutting driver side door. Window regulator was replaced.
Mar 2010 38000 mi US $50	The airbag light would come on intermittently when there are passengers in the car. Dealer diagnosed: passenger seat belt tensioner was not working as intended. Dealer ordered and replaced parts. Paid my deductible for the CPO warranty.
Jul 2010 41000 mi US $50	turbo intake valve not working as intended. car shuddered at low RPM low speed. Dealer fixed under extended warranty
Nov 2010 45300 mi US $50	Check engine light comes up for a day or two than went away. Dealership measured fuel pressure & replaced sensor (under CPO warranty). CEL came back on after I got the car back. Took back to the dealership and they replaced the fuel pump.

Audi A4 in Ontario, Canada Jan 2010 - Jan 2014
Jun 2010 65720 mi	Buildup on intake valves resulting in misfires on cylinder #3 during first five minutes after a cold start.
Nov 2010 70060 mi C $25	Clutch switch sensor replaced.
Dec 2010 70680 mi C $85	Replace trunk latch
Feb 2011 73160 mi	Coolant thermostat stuck open, started to act up the first winter after the warranty expired to the point I had very little heat in the winter.
Sep 2011 81840 mi C $80	Replaced trunk latch as it wouldn't latch properly when the temperature dropped below freezing and fixing it before winter arrives.
Oct 2011 84940 mi C $520	#3 high pressure fuel injector faulty and replaced. Believe this injector had issues for several years and finally started to get worse. Vacuum pipe (8E0 611 931 FQ), vacuum line (8E0 201 934 L) replaced due to dealer breaking a connection on the vacuum line which they proceeded to use jbweld to fix it when timing belt was done June 2010. Replaced failing high pressure fuel injector on cylinder #3
Aug 2012 96800 mi C $760	Front left/right wheel bearing worn and replaced. Track day probably had a factor in this.
Oct 2012 99200 mi C $30	Was getting subtle misfires for a month, then it gave up due to a coilpack failing. Tow home cost me $500 because of a $30 part failing.
Nov 2012 100000 mi C $25	Another coilpack failed. Same one from the recall back in December 2009. Had spare coilpack in car this time to avoid being stranded on the side of the road.
Dec 2012 100440 mi C $210	Xenon bulb replaced
Dec 2013 112840 mi C $800	L/R motor mounts replaced, hood strut, oil change
Jan 2014 100440 mi	PCV replaced

Audi A4 in New York, United States Jan 2014 - Sep 2014
Apr 2014 135800 mi US $350	Wheel bearing on Driver side.

Audi A4 in Florida, United States Nov 2007 - Jun 2011
Jan 2008 41000 mi	radio replaced under warranty (flaking on plastic knobs)
Mar 2010 89000 mi	CEL, software fix paid for by CPO warranty.
Jun 2010 91000 mi	Airbag light on - dealer ordered "seat belt sensor" for passenger side but never followed up to install. The light has since been off.
Aug 2010 96000 mi US $50	Dealer replaced FSI fuel pump, cam follower and camshaft per TSB (original manufacturer defect) after check engine light code found.

Audi A4 in Connecticut, United States Oct 2007 - Apr 2008
Dec 2007 31000 mi	Engine ran rough at start up - like only two or three cylinders firing. Three restarts had same problem. After waiting a few minutes another restart had a smooth engine but the light was on. Apparently there was a TSB on this faulty "ventilation valve".

Audi A4 in Georgia, United States Feb 2007 - Sep 2015
Aug 2008 48000 mi	Turbo switch valve went bad.
Dec 2011 96000 mi US $1600	Thermostat beginning to malfunction. I replaced it before warm weather/heavy driving, $828. Right passenger door lock actuator had to be replaced, $688.
Sep 2013 126000 mi US $1000	New fuel pump, replaced sensors
Jan 2014 127200 mi US $900	Oil leaks

Audi A4 in Illinois, United States Jun 2009 - Jan 2012
Mar 2009 40000 mi	Replaced the PCV valve under warranty. Also did the 35k mile service. Spark plugs replaced.
Jun 2009 51000 mi	Replaced the turbocharger K03 under warranty @ 51,000 miles. Did the 45,000k service.
Aug 2009 51000 mi	Purchased high pressure fuel pump and filter from the dealer and then installed at Rennart. Date is 8/24/2009 Replaced the fuel pressure sensor - Audi dealer - 8/4/2009
Jul 2010 73000 mi US $150	Valve replaced, fuel line
Aug 2011 89500 mi US $550	Reflashed ECU with Revo stage 1 $550 - 8/12/2011
Dec 2011 96000 mi	Changed the high pressure fuel check valve with an upgraded unit. Did not solve fuel cut issues, may need larger fuel pump due to engine software upgrade.

Audi A4 in New York, United States Mar 2006 - Jan 2008
Sep 2006 20000 mi	coolant leakage
Nov 2006 23000 mi	license plate light socket short.

Audi A4 in Pennsylvania, United States Feb 2014 - Dec 2015
May 2014 120800 mi US $250	AC system was running low on refrigerant. No leak was detected.

Audi A4 in Pennsylvania, United States Jan 2007 - Dec 2017
May 2007 27000 mi
Jan 2011 111800 mi US $300	Replaced purge valve
Mar 2011 91000 mi US $500	Charcoal Canister replaced
Aug 2012 105500 mi US $90	Exhaust system hanger replaced
Sep 2016 138000 mi US $450	Replaced fuel pump and fuel filter

Audi A4 in Illinois, United States Jun 2008 - Dec 2014
Sep 2014 56000 mi US $100	thermostat replaced

Audi A4 in New Jersey, United States Sep 2008 - Sep 2011
Dec 2010 72000 mi US $200	Trunk latch is electronic - actuator & latch components were replaced.

Audi A4 in California, United States Nov 2010 - Sep 2016
Mar 2013 102000 mi US $950	Control arms worn Intake flap motor failed. It's not affecting drivability fortunately. I plan to replace it soon, haven't had the time to drop off the car. It's emission related but my fuel mileage has suffered a bit.

Audi A4 in Oregon, United States Nov 2008 - Mar 2010
Feb 2009 45000 mi	Rear high mount stop light works sometimes, sometimes it does not. Seat belt warning chime beeps even when seatbelt is buckled. Truck would not latch when closing. It would have to be slammed 5 or 6 times.
Apr 2009 47000 mi	Drivers side window would not roll up.

Audi A4 in Ohio, United States Jan 2009 - Mar 2010
Feb 2009 52000 mi US $2000	Dual-mass flywheel failure. Symptoms were consistent with a slipping clutch.

Audi A4 in Wisconsin, United States Dec 2006 - Jun 2011
Dec 2007 69000 mi US $600	Bottom Windshield Wiper resevoir cracked. All fluid leaks out now!
Nov 2010 87000 mi US $4782	Fuel valve eaten by engine; required new top end, fuel pump, filter.

Audi A4 in California, United States Oct 2007 - Mar 2010
Jun 2007 25000 mi	Hard to downshift from 3rd to 2nd, hard to shift from 1st to 2nd. Replaced the gearbox. Not fixed Adjusted the shifter pattern plate. Fixed

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Audi A4 in Arizona, United States Sep 2014 - Dec 2014
Sep 2014 100000 mi US $300	Rear Sunshade Motor Failed

Audi A4 in Delaware, United States Jul 2011 - Oct 2017
Oct 2012 93300 mi	Oxygen sensor replaced, high pressure fuel pump replaced, vacume hose replaced. Engine Light on dashboard stays on. Computer diagnosis indicates fuel pump repair required.
Jan 2013 95300 mi US $850	Broken arm on intake manifold air dam In-tank fuel pump was not providing proper pressure of fuel feeding to engine
May 2014 102100 mi US $163	Replace Fuel Tank Seal
Dec 2014 106000 mi US $709	Replace Right Bank cam solenoid, reset valve timing, replace valve cover gaskets.
Oct 2016 112000 mi US $97	Airbag caused dashboard warning light. Connections cleaned and resolved issue

Audi A4 in Minnesota, United States Dec 2015 - Feb 2017
May 2016 127000 mi US $400	Routine maintenance of new spark plugs revealed a failed VALVE COVER GASKET on one side leaking oil. Gaskets on both sides of the v6 engine were replaced. Prior minimal oil consumption reduced to near zero in subsequent 4k miles of driving.
Aug 2016 132900 mi US $350	Windshield wiper motor failed. New wiper motor and linkages installed. Problem corrected.

Audi A4 in New Jersey, United States Nov 2007 - Apr 2013
Dec 2007 25000 mi	2 faulty ignition coils were causing cylinder misfires which lead to the engine being rough at idle. The ignition coils were replaced under the manufacturer's warranty.
Jan 2009 34000 mi	Trunk latch was defective and would not stay closed. Replaced under warranty.
May 2009 37000 mi	Driver side window regulator replaced under factory warranty Outstanding work: Torn vinyl side bolster Torn vinyl side bolster - quoted $200 to replace. Complained to Audi of America about not being covered under warranty. No solution provided.
Apr 2011 55500 mi	Rip in driver side bolster re-opened after being repaired twice. Dealer paid for it and considered it "goodwill". Tried to blame the problem on me (not manufacturing defect) and said this is the last time it will be paid for.
Oct 2011 62000 mi US $650	Oil leaking from manifold. Extensive labor charges incurred to repair a $15 gasket that prematurely failed.
Oct 2012 69500 mi US $300	Engine is slow to turn over. Replaced fuel sensor and fuel filter. Declined throttle body and injection cleaning service. Problem still exists
Mar 2013 73000 mi	Rear Cam oil leak Valve cover oil leak Rear Differential leak
Apr 2013 73000 mi	Rear cam oil leak not repaired.

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Audi A4 in Great Britain Nov 2015 - Dec 2017
Feb 2016 92900 mi £1300	Esp sensor needed replacing

Audi A4 in New South Wales, Australia Feb 2016 - Jun 2017
Feb 2016 65720 mi A $3	Front 02 sensor (B1S1) fail
Mar 2017 69440 mi A $2000	PCV system replace

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Audi A4 in Alabama, United States Dec 2009 - Sep 2017
Mar 2012 80000 mi US $70	belt tension pully bearing started squealing. changed pully
Jul 2012 80000 mi US $1600	replaced turbo

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Audi S4 in Maryland, United States Mar 2010 - Jun 2011
Apr 2010 51000 mi US $50	Airbag warning light illuminated.

Audi A4 in California, United States Dec 2006 - Mar 2010
Jan 2007 23000 mi	Air bag light for driver. Faulty sensor and TSB. It was poorly repaired by previous attempt at another dealer. Fixed. Door rattle from faulty latch. replaced Dome light out. Replaced.

Audi A4 in Illinois, United States Jun 2014 - Apr 2015
Jan 2015 US $1300	HPFP went bad. Needed to replace it.

Audi S4 in Alabama, United States Jan 2013 - Dec 2013
May 2013 119800 mi US $250	Ballast needed to be replaced
Sep 2013 124000 mi US $50	Exhaust clamp

Audi A4 in Minnesota, United States Sep 2013 - Sep 2014
Mar 2014 75000 mi US $100	Oil leaking around valve covers

Audi S4 in New York, United States Aug 2012 - Dec 2012
Oct 2012 58700 mi US $300	Lower control arms

Audi S4 in Texas, United States Jul 2012 - Aug 2012
Aug 2012 78000 mi US $7500	Check engine came on and 20 miles later, car died. Cam shaft seized, something to do with not getting oil, no oil pressure light came on though, pistons bent the valves, got a new cylinder head and cam shafts. turbo seized also. rebuilt.

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Audi A4 in Michigan, United States May 2008 - Jun 2011
Nov 2010 75500 mi US $250	fuel pump failure; replaced pump under extended warranty and fuel filter out of pocket expense.
Dec 2010 78000 mi US $50	Glove box hinge break- replaced under warranty

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Audi S4 in Taiwan Oct 2016 - Nov 2016
Oct 2016 50220 mi $17000	The air con stopped working, ECON light always on and warm air comes out. The coolant fan was replaced. A leak in coolant pipe was found and replaced. Oil around engine and turned out the valve cover gasket has gone bad, replaced it and its been fine since.
Nov 2016 50220 mi $4000	The vacuum pump was leaking oil, noticed by oil on transmission and on the wiring harness beneath the vacuum pump. Bought the parts online and replaced it according to DIY found on audizine forum.

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2006 Audi A4 / S4 repairs by problem area

2006 Audi A4 / S4 repair cost distribution

2006 Audi S4 4dr Wagon

2006 Audi S4 4dr Wagon

2006 Audi S4 4dr Sedan

2006 Audi S4 4dr Sedan

2006 Audi S4 2dr Convertible

2006 Audi S4 2dr Convertible

2006 Audi A4 4dr Wagon

2006 Audi A4 4dr Wagon

2006 Audi A4 4dr Wagon

2006 Audi A4 4dr Wagon

2006 Audi A4 4dr Sedan

2006 Audi A4 4dr Sedan

2006 Audi A4 4dr Sedan

2006 Audi A4 4dr Sedan

2006 Audi A4 4dr Sedan

2006 Audi A4 4dr Sedan

2006 Audi A4 4dr Sedan

2006 Audi A4 4dr Sedan

2006 Audi A4 4dr Sedan

2006 Audi A4 2dr Convertible

2006 Audi A4 2dr Convertible

2006 Audi A4 / S4

2006 Audi A4 / S4 4-door

2006 Audi A4 / S4 2-door

2005.5 Audi S4 4dr Wagon

2005.5 Audi S4 4dr Sedan

2005.5 Audi S4 4dr Sedan

2005.5 Audi S4 4dr Sedan

2005.5 Audi A4 4dr Wagon

2005.5 Audi A4 4dr Wagon

2005.5 Audi A4 4dr Wagon

2005.5 Audi A4 4dr Sedan

2005.5 Audi A4 4dr Sedan

2005.5 Audi A4 4dr Sedan

2005.5 Audi A4 4dr Sedan

2005.5 Audi A4 4dr Sedan

2005.5 Audi A4 4dr Sedan

2005.5 Audi A4 2dr Convertible

2005.5 Audi A4 / S4

2005.5 Audi A4 / S4 4-door

2005.5 Audi A4 / S4 4-door

2006 Audi A4 / S4 Repair Histories