2010 Audi A4 / S4 Audi A4 / S4 2010

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2010 Audi A4 / S4 repairs by problem area

Engine (39%)

Transmission and Drivetrain (11%)

Brakes and Traction Control (2%)

Suspension and Steering (12%)

Electrical and Air Conditioning (24%)

Paint, Rust, Leaks, Rattles, and Trim (9%)

Other (4%)

Chart based on 400 repairs.
See TSBs and recalls for the 2010 Audi A4 / S4.

2010 Audi A4 / S4 repair cost distribution

$2500+ (5%)

$1000 - $2499 (12%)

$500 - $999 (15%)

$100 - $499 (20%)

< $100 (48%)

Worried about potential repair costs? An extended warranty can provide peace of mind.

Chart based on 225 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2010 Audi A4 4dr Wagon

turbocharged 240hp 3.0L V6 Diesel 7-speed automated manual AWD

Audi A4 in Italy
Dec 2016 - Jan 2018
Jan 2018

62620 mi

€50
As explained in previous description, it’s possible I’ve been sold a defective battery, 4 months ago. I’ll have to keep on checking the situation in the next few weeks. 

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2010 Audi A4 4dr Wagon

turbocharged 211hp 2.0L I4 6-speed shiftable automatic AWD

Audi A4 in Wisconsin, United States
Mar 2010 - Jan 2013
Jan 2012 Rear window washer clogged 
Audi A4 in Utah, United States
Nov 2010 - Sep 2011
Feb 2011

17900 mi
Hood latch sensor faulty. Low oil light would not reset after adding oil. Sensor successfully replaced. 
Audi A4 in Florida, United States
Jan 2019 - Jan 2022
Nov 2019

50000 mi

US $30
Front cam seal was leaking oil. 
Audi A4 in Iowa, United States
May 2013 - Jan 2022
Feb 2014

77900 mi
Oil consumption test showed excessive consumption. Pistons & rings to be replaced. Head had gouge damage and was replaced. 
Sep 2014

82000 mi

US $660
A valve associated with crankcase ventilation developed a crack. Diagnosed & replaced. Also tire noise identfied. 
May 2016

112000 mi

US $900
Alternator failed- the pulley on it broke 
Aug 2017

126000 mi

US $180
Bent and Cracked alloy wheel had to be welded and straightened 
Audi A4 in Utah, United States
Dec 2017 - Jan 2018
Jan 2018

115000 mi
car had oil consumption problem when we purchased it, previous owner did not disclose and it was 2k miles out of warranty. Audi would not extend or honor warranty outside of 80k.  Seperate issue- car lost power going up hill. Mechanic said it was the timing chain (supposed to be lifetime). He said they are repairing at least one timing chain a week because they "stretch out" and then fail. When they fail you have to replace the entire engine. Parts and labor quoted by several shops 10k-12k depending on if purchase a used or new engine. We are going to walk away from the car. It was a pleasure to drive, beautiful, and we absolutely loved it. But we have a hard time with a company and/or product that has major defects and consumers are not told about it or have to pay for major design flaws. The car was a ticking time bomb. 
Audi A4 in Florida, United States
Dec 2015 - Sep 2017
Mar 2016

96000 mi

US $1900
Bushings Drivers left armrest replaced 
May 2016

100000 mi

US $3800
Water pump Mixture sensor 
Nov 2016

115000 mi

US $250
Rear Shocks. Owner Repair. 
Apr 2017

123000 mi

US $1500
R and L Wishbone Control Arms (2 per side) and Alignment 
Audi A4 in Ontario, Canada
Dec 2013 - Jun 2018
Jan 2014

47420 mi
Engine was leaking oil after the pistons were replaced under warranty. 
Audi A4 in California, United States
Nov 2010 - Oct 2017
Mar 2016

78000 mi
Engine seemed to go through oil fairly fast, had to refill every 2500 miles or so. Oil consumption test was performed and cylinders were replaced under warranty 
Sep 2017

92000 mi

US $750
Wheel alignment 
Audi A4 in Illinois, United States
Jul 2010 - Apr 2011
Mar 2011

2000 mi
-30 degrees outside the LED stop working, they fixed the wire, maybe metal contraction 
Audi A4 in Rhode Island, United States
Apr 2014 - Sep 2014
Jul 2014

51500 mi
Vehicle was exhibiting excessive oil consumption due to factory defect in piston rings. Entire all four cylinders replaced with new rings under warrantee work. 
Audi A4 in Colorado, United States
Apr 2014 - Apr 2017
Apr 2015

40200 mi
Excessive oil consumption 
Audi A4 in Tennessee, United States
Feb 2010 - Sep 2012
Sep 2011

22000 mi
Sunroof drain had cracked, causing significant leak during rainstorms. Was repaired as part of TSB 
Dec 2011

25000 mi
Rattle from rear hatch. Sound deadening and loose object found 
Audi A4 in Connecticut, United States
Jun 2017 - Nov 2017
Oct 2017

66000 mi

US $3800
Breather assy, valve cleaning and main seal engine replacement 
Nov 2017

68000 mi

US $2100
Leaking panoramic roof allowed water into rear computer units in rear area. 2 units replaced and roof resealed 
Audi A4 in District of Columbia, United States
Sep 2009 - May 2015
Aug 2011

36000 mi
Low speed front end shudder when wheels turned. Power steering hose was replaced under warranty. Problems appears to have been fixed. Rear light bulb blown. This was the second time a rear bulb has gone. Shop checked to see if there was any sort of systemic issue but found nothing. Engine running very roughly, blowing black smoke, check engine light on, eventually car stopped completely. Car towed to dealer. Fuel injector on No.2 cylinder apparently faulty and was replaced. 
Oct 2011

37800 mi
Malfunctioning purge valve. Part replaced 
Mar 2012

45000 mi
Warning light that right rear bulb was out. Dealer inspected and said it was a false alarm. The false alarm recurred on April 4. Car has suddeny started using a lot more oil than usual (additional oil being required every 1,000 miles instead of the usual 3,000-3,500. Car was inspected for leaks and oil was changed. 
Feb 2013

68700 mi

US $258
Right rrear light fixture required replacement 
May 2013

77000 mi
Fuel door malfunction. Excessive oil consumption. Persistant problem since new. Set up for Part I oil consumption test over next 1,000 miles. Car has averaged 1700 miles per quart of oil and since first started monitoring consumption at 16000 miles. 
Jun 2013

78000 mi
Car has been using excess oil since new. They agreed to install new pistons and rings Water pump was leaking. News pump installed at no cost. Car is out of warranty but Audi is footing the bill for the new pistons and rings plus the water pump. 
Audi A4 in Washington, United States
Dec 2014 - Jul 2019
Mar 2018

73000 mi

US $1300
catalytic gasket replaced. regular service performed 
Audi A4 in Massachusetts, United States
Apr 2012 - Oct 2018
Oct 2012

32300 mi
Driveline would clunk approaching a stop, mostly in stop and go traffic. Dealer updated the transmission software. The Navigation screen will intermittently flicker. Dealer told me that this was due to the light sensor, Audi is aware of the problem, and does not at this time have a fix. Oil consumption had gone up dramatically in the past year. I kept a record of when I added oil and mileage - and provided that info to the Service Mgr. They changed the front crank seal and a valve of some sort. 
Nov 2013

42000 mi
The dealer installed a Mecatronics unit for the transmission. Dealer did part 2 of the oil consumption test, and my car passed that test, its using oil within limits. 
Nov 2014

48000 mi

US $238
Harsh 2-1 downshift mostly while in stop and go traffic. The dealership diagnosed the problem, test drove and added approx. 1/2 quart transmission fluid. The issue is happening less, but is still happening. 
Nov 2015

55000 mi

US $149
I needed to have my Headlights adjusted. Somehow the HID projectors were way out of adjustment and pointing super high. This was not covered by my CPO warranty. Update: Fast forward nearly a year and I was getting a suspension error and the dealer checked it out and the rear ride height sensors were bad, maybe only one, but that ended up being the root cause of the initial issue with my headlights. That sensor was bad, the car thought it needed to compensate the headlight angle, and boom, I'm out $160 for an unneeded headlight adjustment, This all clicked to together for me when the work order for the ride height sensor included a re-aiming of the headlights.  
May 2016

59000 mi

US $569
Water pump was replaced - it was leaking slightly After failing the part 2 of the oil consumption test Audi of America instructed my dealer to replace the pistons and rings in my engine. 
Sep 2016

72600 mi
I was getting a suspension error and the dealer checked it out and the rear ride height sensors were bad, maybe only one, but that ended up being the root cause of the initial issue with my headlights. 
Apr 2017

71000 mi

US $425
The PCV valve was bad. 
Apr 2018

84000 mi

US $100
I had codes P0441 and P2187 showing. The shop replaced the PCV valve under their shop warranty. 
Audi A4 in New York, United States
Oct 2009 - Oct 2014
Oct 2013

65000 mi
Oil consumption test. Also recheck the original software "fix". They will schedule a piston and ring job next. replaced pistons and rings, finally fixed oil consumption issue. Auxiliary water pump discovered signs of leakage while replacing pistons and rings for oil consumption. Dealer charged over $400 for part and 2.5 hours...$675 for repair 
Nov 2013

66200 mi

US $450
Passenger side wheel bearing replaced (drivers side was previously replaced at 45000 under warranty ) 
Jun 2014

72000 mi

US $114
steering feel was erratic...hard for part of the turn then easy. Indy mechanic found a TSB on the issue it is over a 300 dollar part and an hour or two labor. Mechanic managed to get some lube in there for now. I'll replace the part soon. 
Audi A4 in Quebec, Canada
Sep 2012 - Jun 2022
Jun 2013

50220 mi
Had a stage 1 oil consumption test. 
Sep 2016

86800 mi

C $2000
Oil use problem . New pistons and rings done by dealer at 50% cost split out or warranty with Goodwill. I had timing chain and tensioner replaced at same time. 
Jun 2018

101060 mi

C $1139
Bottom stabilizer bar and curved and straight lower control arm. Also recirculating valve. 
Aug 2021

119660 mi

C $988
control arm, etc. 

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2010 Audi A4 4dr Wagon

turbocharged 170hp 2.0L I4 Diesel 6-speed manual AWD

Audi A4 in Finland
Feb 2010 - Mar 2016
Sep 2010

9300 mi
Both side turning signal lights in the mirrors (LEDs) replaced due to fault code and moisture inside. First symptoms appeared 1 month after delivery. Complained about bad paintwork, but was told that it is normal nowadays... 
Oct 2010

11780 mi
Blower started to give squeaking noice. Replaced under warranty. 
Mar 2011

19220 mi

€300
Something was rattling inside the dash, dealer couldn't identify the reason and I didn't want them to dismantle whole thing. 
Jul 2011

26660 mi
Front left wheel bearing broke down giving whining and growling noice. 
Dec 2011

38440 mi
Bang&Olufsen audio system was dead - no sound at all. Radio and bluetooth connection were working fine, but just with no sound. 
Mar 2012

52080 mi
Driver side (left) wheel bearing broke down. Repaired under warranty. 
Feb 2013

71540 mi

€90
Left hand side wheel bearing started to give noice and had to be replaced. Dealer paid the spare and 50% of the work. Told me that wheel bearings are breaking down quite frequently with 2010 A4... 
Jun 2013

81840 mi
Both front wings replaced and painted under warranty due to chipping paint. 
Dec 2013

89280 mi

€250
Both side turning signals in mirrors replaced (again) due to moisture inside and causing corrosion in the LEDs. 
Sep 2015

112840 mi
Rust problem in rear fenders (both sides). Fixed under warranty. 

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2010 Audi A4 4dr Wagon

supercharged 333hp 3.0L V6 6-speed manual AWD

Audi A4 in Italy
Aug 2011 - Jun 2018
Jul 2012

13640 mi
temperature gauge of the cooling system was not working properly - sensor G2 has been replaced 
Dec 2014

22320 mi
Battery not woking. Replace battery 
Aug 2017

37200 mi
Brake disks front was damaged; noiose and vibrations 

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2010 Audi A4 4dr Sedan

turbocharged 240hp 3.0L V6 Diesel 7-speed automated manual AWD

Audi A4 in Sweden
Apr 2012 - Mar 2013
Mar 2013

39060 mi
air intake valve keyless entry sensor 

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2010 Audi A4 4dr Sedan

turbocharged 211hp 2.0L I4 8-speed shiftable CVT FWD

Audi A4 in California, United States
Jul 2010 - Nov 2011
Aug 2010

15979 mi
Replaced faulty fuel injector #3. Symptom: Engine suddenly ran rough, lost power, eventually flooded. Smell of gasoline fumes. Check engine light. Replaced faulty fuel injector #3. Symptom: Engine suddenly ran rough, lost power, eventually flooded. Smell of gasoline fumes. Check engine light. 
Oct 2011

31000 mi
Excessive consumption of oil, about 1 quart per 1k miles on average from time of purchase. Repeatedly told that this was normal for Audi's turbo 4 cylinder engines by the dealer. Consumption test performed then finally replaced pistons. 
Audi A4 in Missouri, United States
Jan 2015 - Jul 2019
Nov 2016

57500 mi

US $3000
CVT "gearbox malfunction" light came on, trans would slip on inclines, dealership quoted 10,000 to replace. Replaced with a used trans at indie shop instead. The CVT is garbage. Stay far far away. 

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2010 Audi A4 4dr Sedan

turbocharged 211hp 2.0L I4 7-speed automated manual AWD

Audi A4 in New South Wales, Australia
Jun 2010 - Jan 2017
Dec 2011

21080 mi
To high Oil consumption. Change valves and did consumption test. Phone not Syncing contacts 
Oct 2012

31600 mi
When accelerating from a stop, car lurches violently. When coming to a complete stop car also lurches violently. 
Mar 2013

37820 mi
Car was using excessive Oil. Engine was rebuilt with updated valves and rings. 
Oct 2013

46500 mi

A $2600
Engine valve collet broke. Valve entered the engine destroying the internals. Unclear if related to recent rebuild, Audi would not elaborate. Without dealer assistance the total would have been $28500. 
Jun 2015

62000 mi

A $612
Driver side xenon bulb was turning off after being in for 5 minutes. Diagnosed as bulb needing replacement 

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2010 Audi A4 4dr Sedan

turbocharged 211hp 2.0L I4 6-speed shiftable automatic AWD

Audi A4 in Pennsylvania, United States
Jan 2015 - Mar 2016
Feb 2015

65700 mi
Control arm bushings. 
Mar 2016

87000 mi

US $3500
Timing chain replacement 
Audi A4 in Colorado, United States
Aug 2015 - May 2017
Sep 2015

61000 mi

US $50
During routine maintenance, water pump was found to be leaking and replaced under warranty. 
Nov 2015

63000 mi

US $645
Piston ring replacement was completed under warranty for excessive oil consumption. Added costs incurred during work to replace rear main, front cover seals and clean cam shaft oil bridge filters. 
Dec 2015

64000 mi

US $60
bracket holding sun visor broke. Bracket replaced. 
Audi A4 in New York, United States
Jul 2010 - Oct 2016
Aug 2010

5000 mi
Rear power window stopped working properly around 4500 miles. The window couldn't fully closed. Instead, it will reverse as soon as it hits the top end of the window frame.  Power steering wheel sluggish or vibrate when the car is at low speed (below 5 mph) and at stop. I was told by the dealer that power steering hose needs to be replaced. I will bring the car back next week because the part is out of stock 
Oct 2016

28000 mi

US $1000
Water pump is started to leak slowly. I haven't had a chance to bring it to the shop for repair as I don't drive the car much. Repair cost quoted from $850 to $1175 
Audi A4 in Virginia, United States
Oct 2010 - Jun 2018
Feb 2012

27500 mi
Replaced side-mirror control switch since it was intermittently working. 
Jun 2012

35000 mi
Engine burned a quart every 1000 miles. Oil consumption test resulted in new seals and software update. Audi performed taillight seal recall 
Nov 2014

74300 mi

US $752
Replaced Air Intake Separator Tech noticed water pump leak on prior visit. Water pump replaced. 
Apr 2015

80700 mi

US $3100
Underboost CEL. Replaced turbo. 
Sep 2017

114000 mi

US $628
Leaking right rear shock. Replace both rear shocks. 
Audi A4 in New York, United States
Jul 2009 - Dec 2010
Aug 2009

1000 mi
Headlights were misaligned. After two attempts still not right. Have a call into Audi USA but haven't had a chance to followup.  
May 2010

6000 mi
Engine Surge TSB2021227 - Update ECU Vibration TSB 2020332/4 2022179/2 - Replace lower control arms 
Audi A4 in Texas, United States
May 2010 - Jun 2011
Jun 2010

10000 mi
Weatherstripping on all doors was falling off. Cleaned out the old glue, reapplied adhesive and the strips 
Audi A4 in Virginia, United States
Jul 2010 - Feb 2014
Aug 2010

1000 mi
Just a missing center wheel audi cap needed to be replaced as it was missing at vehicle delivery. 
Jul 2011

14000 mi
Bad radio that needs to be replaced. 
Aug 2011

15000 mi
Radio replaced. 
Jun 2012

29000 mi
Bad Satelite Radio Antenna. Needed to be replaced. 
Aug 2013

44000 mi
Headlight replaced during general maintenance. 
Audi A4 in Illinois, United States
Oct 2009 - Aug 2016
Aug 2016

41000 mi

US $350
battery replacement 
Audi A4 in Ontario, Canada
Aug 2010 - Jun 2018
Jun 2012

28520 mi
replaced crankshaft seal and PCV, oil consumption test, faulty injectors, carbon cleaning off intake valves. rear middle seat belt not latching. high pressure fuel pump losing pressure; update: misdiagnosis 
Jul 2013

38940 mi

C $575
front passenger wheel bearing premature failure 
Dec 2013

43400 mi
motor and fan bearing was loud. they have taken apart the passenger A/C fan and motor, said they replaced the motor but i dont think they replaced the fan, which was making the noise.  
May 2015

53720 mi
Oil consumption, drinks 1Qt every 1000km Rust underneath the hood, Audi denied warranty coverage claiming that it was due to stone chipping 
Apr 2017

65720 mi
Heat seat bottom malfunction 
May 2018

74400 mi

C $450
EVAP fuel line leak causing CEL. Decided not to fix it. 
Audi A4 in North Carolina, United States
Feb 2013 - Feb 2014
Apr 2013

65200 mi

US $85
bad turbo bearings. 
Jul 2013

71000 mi

US $80
Both LED brake light clusters were replaced due to faults. 
Aug 2013

71800 mi

US $80
Gas cap door has an electric lock that locks with the doors. This wasn't unlocking. They replaced the motor that retracts the locking pin on the door. 
Audi A4 in Virginia, United States
Nov 2012 - Apr 2015
Sep 2012

30670 mi
Replaced power steering hose and filled with fluid Valet button stuck, replaced button. 
Mar 2015

77000 mi

US $85
1. Crankcase breather valve leaking. 2. Oil pressure switch malfunction. 3. Rough idle. Replaced leaking Crankcase Breather. 
Audi A4 in Pennsylvania, United States
Nov 2013 - Mar 2017
Jan 2014

US $120
Door handle latch cable broke 
Aug 2015

75400 mi

US $100
Failed pcv 
Sep 2015

73000 mi

US $400
Failed alternator replaced battery at same time due to failing 
May 2016

93000 mi

US $10
Cam chain and tensioner failure. Both items replaced. Dipstick seal damaged. Showed up a couple days after having cam chain and tensioner replaced. I assume it was caused during the repair but I never accused and they didn't say. However I only had to pay for the seal and not labor or diagnosis. 
Dec 2016

106000 mi

US $115
Replaced upstream o2 sensor 
Audi A4 in South Carolina, United States
Nov 2009 - Aug 2013
Jan 2010

4000 mi
Was RVU for wind diffuser for sunroof 
May 2010

5000 mi
Airbag Sensor in passenger seat replaced as lighter individuals like my wife would not turn on sensor even though she should be over the threshold (verified in loaner A4). Parts replaced and functioning properly. Excellent service. 
Audi A4 in Connecticut, United States
Apr 2014 - Jun 2014
May 2014

69000 mi

US $2000
Valve burnout, rocker-roller push rod gave out and caused lack of compression. 
Audi A4 in New Jersey, United States
Nov 2009 - Jun 2018
Apr 2010

4500 mi
At 2,200 miles, static/interference noise from stereo with no sound for 5-15 seconds when starting car. Brought to dealer and new stereo was ordered for installation at a later date. Covered under warranty. 
May 2010

6000 mi
Re-checked all the connections, cable routings and antenna (no problems), wanted to try a new amp (none on hand) and tried to order a gateway module (on national backorder). They did two software updates (2023416/1 and 2023281/1). New radio installed from April 2010 trip. Static problem continued when starting car, although shorter in duration (few seconds). Returned to dealer in May 2010 for 5K service and further service on stereo. 
Aug 2010

12000 mi
Static problem continued (3 times in June) when starting car, although shorter in duration (few seconds). Steering wheel vibrated at low speeds when turning (backing in or out of parking spot, for example). Power steering hoses changed and power steering fluid replaced. Front left tweeter enclosure vibrated when stereo was playing certain frequencies (example, phone call ring). Problem could not be replicated. Satellite radio reception seemed to be poorer, dropping signal when in past the signal would be OK (example, under small overpass). Reception was said to be similar to other cars. 
Mar 2012

35000 mi
Airbag malfunction warning and ABS warning displayed after approximately 5 minutes of driving. Repair was seatbelt replacement. 
Jun 2013

54000 mi

US $820
Failure of 1 fuel injector. 
Feb 2016

94000 mi

US $2000
Replace rear main seal Replace engine mount 
Audi A4 in California, United States
Jan 2018 - Jun 2022
Feb 2018

105000 mi

US $96
Replaced rear led lights. 
Audi A4 in Kansas, United States
Feb 2012 - Jun 2022
Oct 2012

26700 mi

US $130
The paint on the front bumper near the fog lamps began to peel on both sides of the car. 
Jun 2015

56000 mi

US $75
Center High Mounted Stop Light (CHMSL, the third, center brake light) had one, out of 10 or so, LED go out. I purchased a new CHMSL and replaced it myself. 
Dec 2017

78000 mi

US $335
Replaced pistons due to excessive oil consumption. This was warranty work due to the extended warranty (as a result of a class action lawsuit against Audi / VW Corp.). 
Audi A4 in Ontario, Canada
Jan 2010 - Sep 2017
Aug 2011

15280 mi
Sunroof pop up wind deflector was replaced with a new design that decreases wind turbulence. It improves the ability to drive the car with the sunroof fully retracted up to 80+kmh versus the old design made it very uncomfortable after 40kmh Power steering hose replaced with new design. In the past, turning the wheel at parking lot speeds causes the power steering pump to struggle (as if it was not getting enough pressure). On replacement, happens much less but still there. TSB. 
May 2012

19200 mi
Video card failure in MMI system (non Navigation unit) which required dealer to replace with a brand new radio. 1st attempt - wrong part ordered. 2nd attempt - US-spec radio installed which resulted in compatibility issues. Awaiting 3rd uni 
Jun 2012

20460 mi
Radio unit replaced and car reprogrammed. 
Jun 2013

27900 mi

C $15
low oil. Added a quart after 5,000kms / 4months since last oil change. Dealer says oil consumption still within tolerance. 
Dec 2013

29140 mi

C $10
low oil warning came up and topped up with 1 quart. 
Feb 2014

30380 mi
oocassional (5% of the time) harsh shift on 2-3 or 3-2. Transmission reflash (goodwill) 
Feb 2015

35340 mi

C $800
Water pump failure. $300 parts. Rest labor. 
Jun 2015

36580 mi
individual LED in the rear tail light cluster burned out. 
Oct 2016

42980 mi

C $800
Shock and strut replacement. Maintenance 
Audi A4 in New Jersey, United States
Jan 2017 - Feb 2017
Feb 2017

90000 mi

US $1600
PCV Valve failure caused an oil leak in the rear main seal. Repair costs associated with removing the transmission and replacing the main seal. 
Audi A4 in Pennsylvania, United States
Mar 2010 - Jun 2011
Aug 2010

6000 mi
Low speed shimmy 
Audi A4 in California, United States
Dec 2009 - Nov 2012
Feb 2010 When i purchased the car, it made a clicking sound in the right rear suspension over bumps. It turned out the original dealer forgot to remove the shipping block from that corner of the suspension. It was removed and car was fine. 
Sep 2010

11000 mi
fuel injector failed and was leaking. put car in limp mode. 
Dec 2010

9000 mi
fuel injector exploded on freeway. car almost straned in ghetto of los angeles. limp mode home. fuel injector had to be replaced and loaner car given. had to work from home as i was on vacation for holidays... 
Aug 2012

40100 mi
catalytic converter failed at 41k miles. took 4 days to replace due to parts 
Nov 2012

43000 mi
PCV valve replaced and crankcase seals. stage 1 of EA888 oil burning 
Audi A4 in Florida, United States
Feb 2010 - Apr 2012
Nov 2010

24000 mi
High pitch noise when cruising freeway especially up to 85mph. Dealer replace driver's side mirror and car is still in dealership. 
Audi A4 in Washington, United States
Apr 2010 - Jul 2018
May 2018

54000 mi

US $900
Replaced leaky water pump 
Audi A4 in District of Columbia, United States
Aug 2016 - May 2017
Sep 2016

49000 mi

US $200
Known oil consumption-related problems with the 2009 and 2010 A4 2.0: top half of engine rebuilt with new valves, new turbo plus a timing chain tensioner replaced while the engine was out -- all covered by Audi save for the tensioner ~ $4500 total in repairs. 
Audi A4 in Massachusetts, United States
Sep 2013 - Jan 2022
Dec 2013

34000 mi
TSB performed to address oil consumption issue. 
Jun 2016

77000 mi
Turbocharger was not attaining expected boost levels, so the turbocharger had to be replaced. 
May 2018

104000 mi

US $800
I discovered a broken spring in the rear; I had both rear springs replaced. 
Nov 2021

159000 mi

US $120
Replaced the blower motor; it was getting noisy. 

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2010 Audi A4 4dr Sedan

turbocharged 211hp 2.0L I4 6-speed manual AWD

Audi A4 in Massachusetts, United States
Dec 2010 - Mar 2015
Mar 2014

47000 mi
Warning light came. Replaced catalytic converter for free and replaced spark plugs 
Jul 2014

50700 mi
Loose clamp from catalytic converter repair caused transmission to downshift with great noise and shake. 
Sep 2014

54000 mi

US $500
Clutch needed to be replaced. I think the lining slowly wore out as it kept slipping increasingly. L front wheel bearing replaced 
Audi A4 in Newfoundland / Lab., Canada
Dec 2011 - Dec 2013
Jan 2012 Wheel bearing 
Mar 2013

22320 mi
Replaced the steering column 
Sep 2013

27900 mi
seal had to be replaced 
Audi A4 in Washington, United States
Sep 2010 - Jul 2018
Apr 2016

48300 mi
Oil consumption. Piston replacement. 
Sep 2017

58000 mi

US $400
Led bulbs went out. Required replacement of the entire unit. 
Audi A4 in Georgia, United States
Jan 2012 - Apr 2012
Mar 2012

38000 mi
Oil consumption test & manufacturer repair. 
Audi A4 in Ontario, Canada
Jun 2015 - Jun 2016
Jun 2016

79980 mi

C $100
warranty to replace rings and pistons 
Audi A4 in California, United States
Dec 2009 - Dec 2012
Mar 2010

5000 mi
Front right tire inner fender rub. Inner fender cover reattached. I have not noticed the noise since that time. 
Aug 2012

36300 mi
Blower motor was making an unusual noise when using high fan speeds. 
Audi A4 in Texas, United States
Apr 2014 - May 2015
Dec 2014

72000 mi
AC switch 
Feb 2015

73400 mi

US $100
Replace door lock switch 
Audi A4 in Texas, United States
May 2010 - Jan 2011
Nov 2010

17300 mi
oil leakeage, seal replaced 
Audi A4 in California, United States
Dec 2009 - Dec 2014
Jun 2010

8000 mi
"side assist" was broken 
Sep 2012

43000 mi
Dead cam adjuster. Dead starter. 
May 2013

56300 mi

US $600
AC coolant leak *and* recharge. 
Audi A4 in Missouri, United States
Nov 2009 - Aug 2020
Jul 2014

46000 mi

US $360
Right rear LED light burned out 
Audi A4 in Ontario, Canada
Sep 2009 - Mar 2011
Jun 2010

13640 mi
replaced Power Steering hose, vibration during slow turns 
Audi A4 in New Jersey, United States
Sep 2009 - Aug 2013
Oct 2010

9700 mi
Wind noise on driver's side. Complained at 5k service, dealer could not reproduce. During the 9k service (different dealer was able to confirm). Door strike adjusted. Whistle gone. 
Jan 2013

17700 mi
Fuel door not unlocking without repeated attempts. Needed several tries for a few weeks. Solved when first taken to dealer. 
Jul 2013

43000 mi
LED tail lights: some elements went dark. Both sides were replaced. Slight noise at hwy speeds when given steering input. Left front wheel bearing worn. Replaced. 
Audi A4 in Michigan, United States
Feb 2017 - Mar 2018
Jan 2018

117000 mi

US $645
Oil sensor replacement Belt tensor replacement 
Mar 2018

119000 mi

US $485
Replaced ignition coils and spark plugs 
Audi A4 in Tennessee, United States
Feb 2010 - Dec 2012
Apr 2010

125 mi
Tire vibration issue Door seal deformed Part in airbag in steering wheel loose  
Jun 2011

25000 mi
Teflon ball in gear box rubbing 
Audi A4 in Ontario, Canada
Jan 2015 - Jan 2015
Jan 2015

47740 mi
Fuel pressure and fuel injection replaced 
Audi A4 in Maine, United States
Jun 2010 - May 2017
Apr 2015

49300 mi

US $700
Replaced right-front wheel bearing assembly. 
Sep 2016

63000 mi

US $650
Tie rod replacement 

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2010 Audi A4 4dr Sedan

turbocharged 200hp 2.0L I4 6-speed shiftable automatic AWD

Audi A4 in Ontario, Canada
Sep 2015 - May 2017
Oct 2015

54140 mi

C $650
Drive was noisy. 
Jan 2017

58480 mi

C $450
Replaced heat blower motor. 

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2010 Audi A4 4dr Sedan

supercharged 333hp 3.0L V6 7-speed automated manual AWD

Audi A4 in Colorado, United States
Oct 2012 - Jun 2018
Feb 2014

45000 mi
Computer module replaced in transmission. $1,100 in warranty work done. 
Dec 2016

69000 mi

US $500
replaced coils and plugs since they were causing car to misfire 
Audi A4 in Michigan, United States
Sep 2014 - Dec 2016
Dec 2014

102000 mi

US $10000
Had to replace the transmission 
Apr 2016

125500 mi

US $1800
emission sensor failed headlight failed Transmission failed 
Nov 2016

132900 mi

US $400
Faulty coolant line Faulty blower 
Audi A4 in Nevada, United States
Sep 2014 - Nov 2017
Dec 2014

42000 mi

US $650
Thermostat (located under the supercharger) 
Apr 2016

60800 mi
Power door lock failed, replaced lock solenoid. 
May 2016

64000 mi

US $2200
Right side catalytic converter failed 
Dec 2016

69000 mi

US $596
Crank pulley, accessory belt, super charger belt 
Audi A4 in California, United States
Dec 2012 - Jan 2013
Jan 2013 bad valves 
Audi A4 in Ohio, United States
Mar 2010 - Dec 2010
May 2010

1466 mi

US $750
replaced radiator from rock blasting a hole in the radiator. Customer pay.  
Audi A4 in Pennsylvania, United States
Aug 2014 - Oct 2016
Oct 2014

59000 mi
The transmission didn't work 
Jun 2016

82000 mi

US $1500
Thermostat needed replace car was overheating 
Audi A4 in Georgia, United States
Dec 2013 - Feb 2019
Mar 2017

66000 mi
Secondary air injection cleaning performed under extended manufacturer warranty. 
Aug 2017

71000 mi

US $100
Replaced failed tstat and water pump Replace PCV to remedy high oil consumption 
Feb 2018

77000 mi

US $400
Water leaking in both rear lamps due to broken seals. Seals replaced and one light kit replaced 
Audi A4 in California, United States
Sep 2014 - Aug 2016
Feb 2016

107600 mi

US $100
Hood struts failed Needed battery replaced Windshield washer nozzles 
Audi A4 in Ontario, Canada
May 2010 - Jul 2011
May 2010

310 mi
They had to replace the key part because it wasn't cranking the ignition. 
Audi A4 in California, United States
Apr 2013 - Jun 2016
Oct 2015

53300 mi
Car overheat. Thermostat stuck open. Replaced thermostat. 
Audi A4 in New York, United States
Oct 2013 - Oct 2014
Oct 2013

77000 mi

US $2080
Transmission light came on, lost reverse while in VA. it had been occasionaly slamming into 1st from second for a while. ended up needing TCM/mechitronics replaced. Other than this the car has been flawless and is driving fine now. 
Jun 2014

93000 mi

US $960
Left front wheel bearing was droning and needed to be replaced. Hub and wheel bearing was done. 
Sep 2014

99000 mi

US $1200
car was overheating and needed to replace thermostat and water pump. 
Audi A4 in Arizona, United States
Sep 2010 - May 2014
May 2011

7000 mi
Thermostat replacement.  
Audi A4 in Colorado, United States
Mar 2010 - Mar 2012
Nov 2010

6000 mi
Water pump (plastic part defective on all early-2010 B8 S4s) leaking coolant. Drivetrain shudder during turns at low speed. Dealer acknowledged problem, Audi claims is normal condition. 
Dec 2010

7000 mi
CEL for secondary air pump. Reset CEL, could not duplicate. 
Apr 2011

8000 mi
Service bulletin for thermostat replacement. Leaking rear differential seal 
Mar 2012

12000 mi
Mechatronics unit replaced twice, then entire transmission replaced. 
Audi A4 in Ontario, Canada
Mar 2010 - Dec 2016
Apr 2010

2480 mi
Engine light came on. Dealer found fuel ratio imbalance error code. System scan performed. No problems found and no loss of power. Error code erased. 
May 2011

5880 mi
Engine light came on. Dealer diagnosed fuel injector problem. Replaced #5 fuel injector.  Thermostat replaced due to preventative TSB.  
May 2015

46500 mi

C $100
Right rear electronic parking brake motor malfunctioned 
Audi A4 in Michigan, United States
Apr 2010 - Aug 2013
Oct 2010

3000 mi

US $40
adjust headlights 
Jan 2011

12200 mi
Rattle in dash. Flaw in paint. 
Audi A4 in Ohio, United States
May 2010 - Jun 2022
Dec 2010

22000 mi
Water pump failure, managed to drive to out of town dealer for repairs before total loss of coolant 
Oct 2013

76500 mi
Bearing on left side 
Mar 2016

97000 mi

US $1500
left front and right rear wheel bearings 
Audi A4 in Massachusetts, United States
May 2010 - Sep 2017
Mar 2011

15000 mi
Sudden water pump failure with loss of all coolant. Car towed to nearest dealer and repaired, all the the manufacturer's expense. 
Jun 2011

18000 mi

US $382
A "sport differential failure" warning light came on without any other symptoms. Computer scan revealed this was due to transient low battery power. Battery tested okay. 
May 2015

62400 mi

US $300
Rough downshifts with with "S-tronic" dual clutch transmission. The dealer reprogrammed the mechatronic control unit. After a period of "readaptation" the problem persisted and I suspected impending mechatronic failure, however after nearly 2,000 miles driving it has improved. 
May 2016

72000 mi

US $1200
The "convenience module" failed and had to be replaced. This unit controls the keyless entry and vehicle start switch. 
Audi A4 in Manitoba, Canada
Jun 2012 - Mar 2020
Jul 2016

41220 mi

C $1200
One rear shock absorber 
Jul 2017

46500 mi

C $400
Rear high brake light 
Dec 2017

48980 mi

C $500
Secondary air flow low - repaired Replace battery 
Jun 2019

54560 mi

C $2200
Wheel bearing and front brakes and rotors 
Audi A4 in Missouri, United States
Mar 2010 - Apr 2015
Sep 2010

17000 mi
Door sensor.  
Audi A4 in New York, United States
Feb 2010 - Feb 2017
Oct 2010

6000 mi
Water pump was replaced at owners request proactively by dealer as the water pump was in scope for the replacement. Very satisfied with the way Biener Audi replaced the water pump in under 2 hrs. while I waited without any hassles. 
May 2011

9300 mi
Thermostat was replaced based on Audi TSB where the thermostat could stick in the closed position, causing an engine overheating condition. 
Jan 2013

16000 mi
replace crankcase ventilation hose which cracked 
Jan 2015

US $1100
Battery low warning message when listening to radio with engine shut off. Dealer replaced radio module but did not solve problem, credited for this later. Root cause: bad voltage regulator and battery. 
Audi A4 in Ohio, United States
Dec 2009 - Apr 2013
Jul 2010

4000 mi
While returning the sun visor from the left to the center, the retaining clip broke. Dealer had to order the clip. Real pain because the visor flapped until fixed. New sun visor clip installed. 
Jan 2012

14000 mi
Rattle in front passenger door, for which there is a technical service bulletin from Audi. Fixed plastic fasteners inside door that loosened over time, as well as additional sound insulation materials.  
Mar 2012

15000 mi
Continuing rattles traced to glove box. Noise was terrible -- essentially made driving impossible. I isolated the source (dealer could not), after which dealer fixed the problem. Finally. 
Audi A4 in New Jersey, United States
Oct 2009 - Jan 2011
Apr 2010

6000 mi
Transmission failure. Mechatronics unit replaced. 
Audi A4 in New York, United States
Feb 2010 - Aug 2014
Oct 2010

9000 mi
Known water pump/high pressure seal for pre-March 2010 build dates. Either the seal or plastic pump goes resulting in loss of coolant. Water pump replaced with metal pump the same day by dealership. 
Jul 2013

59000 mi

US $900
Both front wheel bearings replaced 
Mar 2014

69000 mi
TSB performed on DSG gearbox, replace circuit board. Replaced under Audi extended warranty from previous water pump failure and thermostat issue. 
Jun 2014

73000 mi
Rough shifting between 1, 2, as well as reverse. Audi USA approved complete transmission replacement after fluid diagnosis appeared to show metal particles. 
Audi A4 in Massachusetts, United States
Feb 2010 - Apr 2015
Dec 2010

15000 mi
Replaced leaking Water Pump 
Feb 2011

17000 mi
Engine light came on. Dealer diagnosed fuel injector problem. Replaced #1 fuel injector and reset engine light.  
May 2011

22200 mi
Thermostat replaced due to preventative TSB. 
Jul 2012

44000 mi
Dealer performed an unsolicited Tail Light gasket update #94F6 under warranty to prevent possible leakage of moisture into the Tail Light housings. 
Aug 2012

45200 mi
Check Engine Light came on with no obvious impact on vehicle performance. Dealer diagnosed a bad secondary air pressure sensor on Bank 2, ordered part and subsequently replaced the sensor under warranty. 
May 2013

55800 mi
Got Gearbox Malfunction error message. Dealer replaced mechatronic and wiring harness in transmission. 
Dec 2013

64000 mi
Oil level warning would not reset after topping off oil. Replaced switch that senses hood closure under extended warranty. 
Aug 2014

73300 mi
Check Engine Light came on with no obvious impact on performance. Dealer cleaned secondary engine air ports. CE light came on again when picked up. Dealer diagnosed bad relay for secondary air flow motor. Replaced under extended warranty. 
Audi A4 in Washington, United States
Feb 2010 - May 2015
Feb 2010

1200 mi
Driver's side rear outer brake pad had to be replaced (free of charge). A portion of the pad adhered to the rotor, approx a 1/2 inch wide area in the center of the swept area, was not making contact with the pad surface as a result. 
May 2015

56000 mi

US $900
Front upper and lower bushings were shot, had upper entire control arms replaced with adjustable (stock is non-adusting) and new bushings (redesigned part from Audi) on bottom replaced 
Audi A4 in California, United States
May 2010 - Jan 2018
Aug 2011

9000 mi
Rear speaker suddenly went to full blast or mute. No other volumes possible. Reset multimedia system myself + repeatedly shut off car. Dealer checked for faults + software updates. None found. 
Feb 2012

14400 mi
Radio went to mute and would not recover. Automatically fixed itself overnight. Dealership checked for software update. None found. Could not duplicate problem. 
Mar 2013

24000 mi
Noticed Nav button was sticky after last permaplate. Tech did something to try to make it less sticky, but did not completely succeed. 
Mar 2014

33000 mi
Oil consumption was high. Brought it in for a 35,000 mile check one month ago - they said it was ok. Less than 1,000 miles later, it showed up as needing a quart of oil. They replaced oil separator and valves/gaskets. 
Feb 2015

43700 mi

US $100
Check engine light came on. Was a camshaft sensor that was broken. Would have been $290 + tax to repair at dealership, but I had an extended warranty. 
Feb 2016

53400 mi

US $658
Engine temperature kept on rising and low coolant warning came on once. Coolant level was fine. Faulty thermostat. Replaced thermostat. Wheel bearing was squeaking. Replaced both front bearings (left and right). 
May 2016

57000 mi

US $3083
During stopping of car, car would lurch forward. Esp. noticeable during warm temp. Replaced battery (did not solve issue). Then replaced mechatronics unit. During inspection for repair of transmission issue, dealership noticed rear diff. leaking. Replaced rear. diff. seal. 
Mar 2017

65000 mi
Since mechatronics was replaced, had to push start button twice to start. Dealer followed TSB 20141242/2, updated the mechatronic control module software to 0009 via SVM. 
Audi A4 in Arizona, United States
May 2010 - May 2017
Dec 2010

10000 mi

US $43
retaining clip for sun visor broke. replaced by dealer in 2 minutes 
Apr 2011

18000 mi
TSB for thermostat. Dealer replaced 
Sep 2011

26000 mi
Rear window power sunshade stopped working. motor replaced. Installed improperly and broke 2 days after repair. part ordered again 
Nov 2011

28700 mi
rain sensor stopped working so no intermittent wipers. sensor replaced 
Aug 2013

47000 mi
camshaft sensor caused check engine light to go on. Replaced under warranty 
Dec 2014

65000 mi
Navigation system not recognizing satellite. Dealer can't establish connection with reboot. Recommends replacing nav system 
Jul 2015

72000 mi

US $650
navigation antenna not communicating with MMI 
Oct 2015

75700 mi

US $11000
Coolant in the cylinders 
Audi A4 in Pennsylvania, United States
Sep 2010 - Mar 2013
Dec 2010

11000 mi
Car had multiple warning lights and went into "safe" mode. Car was towed. ABS pump replaced. ABS faults reset. 
Apr 2011

16800 mi
Water pump and thermostat were replaced. Service bulletin, no symptoms. 
Audi A4 in Virginia, United States
Dec 2011 - Dec 2012
Dec 2012

21000 mi
Error light Transmission malfunction, whole unit replaced 
Audi A4 in New Jersey, United States
Jun 2010 - Jun 2011
Jul 2010

5500 mi
Air fan was making a faint squeeking sounds. They said it was mal-aligned. Replaced under warranty. air fan was making a faint squeeking sounds. They said it was mal-aligned. Replaced under warranty. Rock perforated radiator. All coolant leaked within 15 mins. They replaced the radiator. No cost, since i've only had car for a few months. Very frustrating that audi does not protect radiator on such a car 
Audi A4 in Illinois, United States
Jul 2010 - Mar 2016
Sep 2010

30000 mi
water pump failed and had to be replaced 
Feb 2011

40000 mi
the thermostat was replaced to prevent overheating 
Jul 2011

44000 mi
the transimission was replaced 
Aug 2011

46000 mi
transmission replaced after warning light gave "gearbox malfunction" reading 
Jun 2014

113000 mi

US $1000
wheel bearing needed replacement 
Mar 2016

155000 mi

US $800
alternator replaced 
Audi A4 in Arizona, United States
Jul 2010 - Mar 2016
Sep 2014

41000 mi

US $1200
Thermostat failed stuck closed causing engine overheating 
Audi A4 in Pennsylvania, United States
May 2012 - Jun 2012
Jun 2012

10000 mi
The Convenience Key System Failed 
Audi A4 in New Hampshire, United States
Jan 2012 - Sep 2017
Mar 2012

25000 mi
Coolant level was low. Dealer did a leak check, no problem found. Added coolant, will monitor. 
Jun 2014

41000 mi
Oil reading low even when not. Service bulletin had already been issued by Audi. Switch replaced. 
May 2015

48000 mi

US $350
Right wheel bearing noisy for a few weeks, started getting very loud. Replaced. Checking the old bearing, looks like a forging defect, small hole in the bearing race surface not penetrating the bearing. No ball bearings damaged. 

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2010 Audi A4 4dr Sedan

supercharged 333hp 3.0L V6 6-speed manual AWD

Audi A4 in Pennsylvania, United States
Feb 2011 - Jul 2016
Jul 2011

27000 mi
Replaced pass. side downpipe, had a rattle inside at certain RPM's 
Sep 2011

30000 mi
Took it in after noticing a creaking noise coming from steering column at low speed turns, dealer blamed on H&R OE Springs and did not want to investigate further 
Feb 2012

35300 mi

US $1600
Clutch started to slip during spirited driving. Replaced clutch with an aftermarket 6-puck Eurospec clutch. 2 Weeks later had to replace a failed clutch master cylinder. No problems to date. 
Jun 2012

41000 mi
Driver side door handle started to crack, replaced under factory warranty. Had to wait for trip piece to come from Germany. 
Dec 2012

47000 mi

US $10
Intake air temp sensor on passenger side has an implausable signal, MIL on, dealership diagnosed, sensor working to specification, reached audi tech line, sensor replaced per audi tech line. 
Audi A4 in Ontario, Canada
Mar 2010 - Jan 2012
Jul 2010

8560 mi
Coolant dumped, had to replace water pump. Side assist (blind spot detection) needed to be replaced on passenger side. Second trip to get coolant leak entirely fixed. Dumped coolant again 2km after first repair. They said I also had a hole in the radiator for the intercooler but I couldn't find any hole in the old part. Probably covering up a mistake with first attempt. Installed replacement part for side assist. 
Sep 2010

10540 mi
The shifter became very notchy and noisy like the internals had worn out for some reason. They replaced the entire shifter mechanism. 
Dec 2010

12400 mi
The front headlight self levelling device continually adjusts when it is cold outside. 
Mar 2011

15500 mi
Same issue as before - self levelling headlights not behaving. Audi reproduced problem and replaced on control system but problem returned couple of weeks later. Waiting on direction from Audi on next step. 
Dec 2011

21700 mi
Clutch spring had noise issues and needed replacing 
Audi A4 in New Jersey, United States
Feb 2010 - Jun 2018
Dec 2010

14000 mi
Water Pump Changed because it was leaking. 
Feb 2014

70000 mi

US $900
Wheel bearing needed to be replaced. 
Apr 2014

78200 mi
Oil was being used to quickly by engine due to an engine oil valve 
Sep 2017

116000 mi

US $3000
Clutch and flywheel - put performance parts in due to slightly more than stock. 
Jun 2018

126000 mi

US $1500
Suspension steering rods 
Audi A4 in Maryland, United States
Nov 2011 - Jun 2017
Dec 2011

45000 mi
TSB: Hood switch.  MMI reported wrong oil level. 
Audi A4 in Ontario, Canada
Dec 2013 - Jun 2022
Feb 2014

38600 mi
Previous owner had radio replaced by dealer and satellite radio was not working due to incorrect coding by dealer at the time. 
Jun 2014

42160 mi
Gear shifter squeak. 
Jul 2014

43400 mi

C $57
Left rear wheel bearing replaced under extended warranty. 
Nov 2014

46500 mi
Coolant thermostat failed. Previously dropped the car off when there were signs of something failing (radiator fan running at max speed) but dealer concluded "nothing wrong" as per their diagnostic tools. 
Dec 2014

47740 mi

C $2624
Clutch/pressure plate replaced 
Jan 2015

39700 mi

C $50
Driver side lock sensor failed, replaced. Adaptive headlights have a mind of it's own, updated software and adjusted wiring. In both cases, the issues were not resolved, car back in on 2/26. 
Feb 2015

49600 mi

C $50
Issues still with the driver side door lock sensor. Other sensors replaced. Behaviour with the adaptive headlight looked at again, still misbehaving when temperature is below freezing. 
Apr 2015

52480 mi
Adaptive headlight misbehaving, tech worked with resources in Germany, applied a firmware for the controllers. Okay so far, need to test when -20C next winter! 
Dec 2015

58900 mi
LED light for the km/h market in speedometer blinking. Cluster to be replaced under CPO. 
Jan 2016

50040 mi
Part for gauge cluster received and replaced under extended warranty. 
Jan 2017

61200 mi

C $1100
Clutch master cylinder replacement to resolve issue with starting the car (had to depress the clutch very hard). 
Jun 2018

80600 mi
Replace clutch fork which was causing hard to start issue (clutch really had to be depressed hard). Front rotors replaced, all pads replaced 
Jun 2022

105400 mi

C $1000
Loud whining, diagnosed to be the left lobe of the supercharger. Supercharger replaced with new-used part and about 50% of the whining noise reduced, supercharger idle pulley replaced but the noise was still there but less, accessory belt tensioner replaced resolved the last bit of noise due to bad bearings. 
Audi A4 in Georgia, United States
Sep 2010 - Jan 2014
Oct 2010

7000 mi
Complete loss of coolant due to failure of water pump seal. During the car's 5000 mile service, loss of coolant was reported to dealer, but they could not find the problem and simply topped off the cooling system. 
Aug 2011

16400 mi
Clutch pedal squeak was addressed by replacement of several parts in the transmission linkage. 
Mar 2012

21000 mi
Clutch judder during take-off from stop. Clutch, pressure plate, and flywheel replaced. 
Audi A4 in Newfoundland / Lab., Canada
Jul 2010 - Nov 2013
Jul 2010

2480 mi
B&O System (all sound) stopped working. Repaired by software/firmware update. 
Dec 2011

16740 mi

C $200
Broken wheel nut. Had all replaced due to high torque. 
Jun 2013

31000 mi
A/C intermittently blasting hot or cold. Right rear proximity sensor reading objects as close that were not. 
Audi A4 in New Jersey, United States
May 2010 - Sep 2012
Apr 2011

11000 mi
The engine thermostat was replaced 
Mar 2012

20000 mi
Oil consumption issue. Traced to loose filter. 
Audi A4 in New York, United States
May 2010 - Jul 2018
Sep 2010

6000 mi
TSB for clicking clutch sound. Transmission dropped and parts replaced, but problem continues. 
Aug 2012

31400 mi
gearbox is noisy when shifting gears with manual transmission 
Jun 2014

46000 mi

US $1100
squeaky gearbox and rough shifting 
Jun 2016

59000 mi

US $170
Rattle from rear dash/trunk 
Audi A4 in Alberta, Canada
Apr 2010 - Jun 2016
May 2010

2480 mi
Low oil warning light came on. Took car to dealer who topped up oil for free. 
Oct 2010

4640 mi
TSB issued for water pump prone to fail. Replaced by dealer under warranty. 
Jul 2014

24280 mi

C $300
Door lock switch cover fell off. Had to replace entire switch assembly. 
Audi A4 in Pennsylvania, United States
Mar 2010 - Aug 2012
Nov 2010

5500 mi
Water pump blew leaving car unable to be driven. WP replaced 
Jun 2011

11000 mi

US $457
IC radiator punctured by road debris. Car flatbedded to dealer. IC radiator replaced. Tstat also replaced at that visit. 
Audi A4 in Florida, United States
Apr 2010 - Apr 2016
Jun 2010

2000 mi
Clunk from right front suspension over bumps and on applying brakes. Diagnosed as improperly installed bushing at factory. Parts ordered but not arrived yet. 
Jul 2010

3000 mi
Parts arrived and installed. Car available for pickup after 3 days in shop. Original problem corrected and has not recurred. 
Dec 2010

7000 mi
Leaking seals on rear differential sensors. Parts on order; topped off fluid. Will return for install when parts received. Rear differential sensor seals leaking. Sensors installed, topped off rear differential fluid, adapted sensors to vehicle management system, test-drove. 
May 2011

14000 mi
Coolant leak. Traced to cracked coolant hose. Hose replaced under warranty. 
Apr 2015

65800 mi
Excessive oil consumption. The dealership replaced the oil separator, which has solved the problem. Because the car had been involved in a recall in 2011 due to a coolant pump issue, Audi of America extended the drivetrain warranty to 5 yrs/72K miles. 
Jul 2015

68500 mi

US $790
Erratic coolant temp and AC failure. Diagnosed as thermostat failure. Replaced thermostat. 
Mar 2016

77000 mi
CEL light on; diagnosed as defective bank 1 combivalve. Ordered part. Prior to part arrival, CEL cleared and did not return. Part not installed. 
Audi A4 in Massachusetts, United States
Mar 2010 - Jan 2014
Sep 2011

16000 mi
The rear axles were leaking at the differential flange. There was a TSB for this and it had to stay an extra day to be repaired. There was a squeak coming from the center console that I could easily replicate and illustrated to the dealer but they did not fix it. Brought the car back after failed previous attempt to repair creak in center console. After talking to service manager and describing the issue, they compared to another S4 on the lot and verified it was not normal and were able to repair. 
Feb 2012

20700 mi
Had squealing brakes in temps under 40 degrees F. Found out there was a TSB for this and asked the dealer to perform the TSB on my car. Replaced pads rotors and caliper carriers ordered at last trip. 
Apr 2012

20800 mi
Passenger visor clip broke while clipping the visor back in. They replaced the clip under warranty. 
Jun 2012

25000 mi
A trim piece on the driver seat rail broke as I was adjusting the seat back. The shifter was squeaking when going from 5th to 6th gear or from going from 6th to 5th (Manual Transmission) 
Dec 2012

30000 mi
Rattle coming from passenger side. Could be heard going over any road surface other than perfectly smooth and when playing music with a lot of bass. Dealer performed TSB for rattles when playing music with a lot of bass. Rattle from passenger side from previous trip. Occasional rough idle and odd vibration at just over 1000 rpm. Dealer said it was normal compared to other like cars. Dealer damaged door panel from previous trip. They patched it as a repair. Creak coming from center console. The dealership tried to adjust it but were not successful. Rear differential was leaking. The seals on the output flanges were replaced. 
May 2013

35000 mi
The passenger front wheel bearing needed to be replaced. Passenger inner taillight had an LED that was out. Passenger inner taillight had an LED that was not working. 
Jan 2014

42000 mi
Clutch release mechanism caused car to sometimes not start 

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2010 Audi A4 / S4

Engine not specified

Audi A4 in Colorado, United States
Sep 2009 - Mar 2010
Oct 2009

2000 mi
LED turn signal on right headlight burned out. Resulted in having to replace complete headlight assy. 
Audi A4 in Ontario, Canada
Mar 2011 - May 2011
May 2011

14880 mi
thermostat repair and regular scheduled oil change. they did not install the oil filter correctly which forced a second trip to replace the filter and clean the engine bay of the leaking oil. 

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2010 Audi A4 / S4 4-door

supercharged 6-cylinder automatic AWD

Audi A4 in Great Britain
Jan 2011 - Apr 2011
Mar 2011

8000 mi
Plastic impeller failed on water pump. Know problem to Audi. Informed by Dealer that Audi are instructing dealers to wait for owners to notice problem and fix it rather than recalling cars. Reason: shortage of water pumps / impellers 

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See TrueDelta's information for all Sedans, Wagons, and Convertibles.
See TrueDelta's information for all Audi models.

2010 Audi A4 / S4 Repair Histories

See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently 2010 Audi A4 / S4 problems occur, check out our car reliability stats.