2009 Audi A4 / S4 Audi A4 / S4 2009

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2009 Audi A4 / S4 repairs by problem area

Engine (40%)

Transmission and Drivetrain (2%)

Brakes and Traction Control (3%)

Suspension and Steering (13%)

Electrical and Air Conditioning (23%)

Paint, Rust, Leaks, Rattles, and Trim (15%)

Other (3%)

Chart based on 542 repairs.
See TSBs and recalls for the 2009 Audi A4 / S4.

2009 Audi A4 / S4 repair cost distribution

$2500+ (7%)

$1000 - $2499 (14%)

$500 - $999 (16%)

$100 - $499 (16%)

< $100 (47%)

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

Chart based on 293 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2009 Audi A4 4dr Wagon

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

Audi A4 in New South Wales, Australia
Jun 2013 - Oct 2016
Jun 2015

43400 mi

A $400
New PCV fitted to reduce excessive oil consumption. 
Feb 2016

52700 mi

A $1400
leaking engine mounts replaced 
Mar 2016

52700 mi

A $785
door lock failed, replaced door lock replace rear door lock 
May 2016

57660 mi

A $1600
side assist sensor replaced 
Jun 2016

58900 mi
Mechatronic unit failed on S tronic transmission 
Sep 2016

63240 mi

A $1600
water pump leaking Engine mount bracket damaged. The problem occurred after the gearbox was repaired so i think it was probably caused by the workshop, I could be wrong. fuel fill hatch not opening Pistons and rings replaced due to excessive oil consumption. 

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2009 Audi A4 4dr Wagon

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

Audi A4 in California, United States
Mar 2009 - Sep 2012
Apr 2009

2000 mi
dings and paint scratches caused by shipping/delivery of car 
Feb 2010

10100 mi
Sunroof wouldn't close. dealership couldn't replicate problem. periodic audio system doesn't shut off with ignition. dealership couldn't replicate problem. 
Jan 2011

21000 mi
sunroof wouldn't close. TSB, parts replaced. 
Audi A4 in Ontario, Canada
May 2012 - Feb 2017
Sep 2012

51460 mi

C $85
Convenience key (keyless lock/unlock) fail. Excessive oil consumption 
Mar 2014

67580 mi

C $50
Headlight washer jets do not work. Failure to extend from bumper below headlight. 
Sep 2014

72540 mi

C $50
Hood latch switch (electrical) failed. 
Nov 2014

74400 mi

C $365
Excessive oil consumption. > 1qt per 1000 kms. Oil consumption test is being performed 
Dec 2014

75640 mi

C $600
Excess oil consumption. Vehicle has 'failed' oil consumption test. Data has been sent to Audi for review. 
Feb 2015

78740 mi
Performed Audit TSB 2039655/1 Excessive Oil Consumption. Measured cylinder bore for scoring - within limits. Replaced pistons and piston rings 
May 2015

82460 mi

C $1100
Carbon build up in intake jammed air intake flapper causing electrical actuator motor to fail. 
Sep 2015

86180 mi

C $100
Check engine light. Mechanic confirmed thermostat failure. Replaced part. Drivers sunshade clip broken. 
Feb 2016

89680 mi

C $200
Cam access plug fell out causing significant oil leak, rough idle, check engine light Driver side door keyless entry does not work in cold weather. Sensor is good, actuator freezes. 
Jun 2016

91760 mi
Driver door window up/down switch intermittent 
Feb 2017

98580 mi

C $550
Left wheel bearing fail 
Audi A4 in South Carolina, United States
Sep 2009 - Jan 2016
Oct 2009

4000 mi
Sunroof shade would not fully close. Pinch protection was being initiated. Lubrication of channels fixed problem. 
Dec 2009

5000 mi
Weather stripping on sunroof prevented shade from fully closing causing pinch protection to be enabled. 
Sep 2010

16000 mi
Clogged rear sunroof drain. Ordered replacement under warranty. 
Dec 2010

16000 mi
Clogged rear drain was ordered and replaced problem returned again two weeks later. 2nd trip to fix water leak. This time was caused by drain tube coming out of nipple. Parts ordered and repaired and working as of now. 
Apr 2012

39500 mi
Service bulletin for cam adjustment Sunroof drain on passenger side began leaking in passenger floor. Same problem occured 1 year earlier on driver side. Engine was using excessive amount of oil. Performed repair per service bulletin to correct. 
Aug 2013

61200 mi

US $850
CEL came on because a flap on the intake manifold was sticking. Intake manifold needed to be replaced. 
Jan 2014

52200 mi
Oil consumption test confirmed that I needed to have phase 2 done to resolve problem. Replaced 4 pistons, rings and all gaskets. Was covered under warranty even though warranty expired. 
Dec 2014

83000 mi

US $400
Oil separator had a leak causing misfires in engine. Part was replaced. 
Jan 2016

67000 mi
Water leak above rear driver side door. 
Audi A4 in Alberta, Canada
Apr 2009 - Aug 2018
Sep 2010

14260 mi
Material defect in intake manifold. Car idles rough and misfires at low RPM. Audi located the problem and ordered the parts.  Problem manifold replaced and repaired. ECU reflashed. Much better performance. 
Oct 2010

14560 mi
Blown and short circuited high end (manufacturer installed) Bang and Olufsen amp for stereo system. Parts flown from NY to LA to Vancouver to Calgary. hadn't realized this sound system was so rare and expensive. Too bad for Audi and B&O. 
Nov 2010

16120 mi
Wiper Arm failure - caused wipers to be out of sync and damage each other. Failure of MMI software after previous AMP replacement - software updated. 
May 2011

21580 mi
sunroof sensor software set to too low of a obstruction value 
Sep 2014

60760 mi

C $350
Needed new spark plugs and oil change. 
Apr 2015

66740 mi
excessive oil consumption 
Aug 2015

70620 mi

C $1200
Cracked water pump housing due to improper repair by audi dealer service 
Feb 2016

76220 mi

C $1200
Failed integrated vaccuum advance on intake manifold rwquiring replacement of entire plastic manifold. 
Jan 2017

77120 mi

C $4000
Cv joints and brakes 
Jun 2017

94240 mi

C $15
replaced bulbs 
Audi A4 in Pennsylvania, United States
Feb 2009 - Apr 2012
Nov 2009

9000 mi
amplifier module short, right front speaker short. 
May 2010

15100 mi
High speed shimmy in steering wheel. Remedied by road force balancing the wheels and installing updated control arms. Low speed shudder in steering wheel at parking lot speeds. Remedied by a new-style power steering hose. 
Jun 2011

25000 mi
New ECU flash per TSB concerning transmission not shifting out of 2nd gear intermittently. TSB concerning lubrication of sunroof assembly. Engine leaking small amount of coolant. Replaced hose clamp attaching coolant hose to water pump.  
Feb 2012

33000 mi
Vehicle would not start. Comfort/convenience module faulty. R&R module, reprogram keys. car misfiring and eventually stalled out without being able to restart. #3 Fuel injector stuck open flooding engine. R&R #3 fuel injector 
Audi A4 in New York, United States
Nov 2009 - Feb 2022
Dec 2009

2500 mi
Loose Fuel Sending unit connection, resulting in "Fuel Level indicator showing EMPTY. Connection secured and problem resolved. Loose Fuel Sending unit connection, resulting in Fuel Level indicator showing EMPTY. Connection secured and problem resolved  
Feb 2010

5500 mi
 
May 2010

7200 mi
Service Recal for Faulty power steering hose 
Feb 2014

40100 mi

US $1500
Leaking water pump 
Jan 2015

48000 mi

US $1700
Hub bearing 
Nov 2021

93000 mi

US $2000
Brakes 
Audi A4 in New Hampshire, United States
Jan 2013 - Jun 2013
May 2013

53000 mi
Loud moaning sound on cold start up. Dealer claims this is due t the air injection system, and "all 2009 A4 models with the 2.0 do this. I'm working on a second opinion on that. Also, power mirror pre-sets wouldn't work. They did fix that 
Audi A4 in Connecticut, United States
Jul 2017 - Jan 2022
Aug 2017

138000 mi

US $6500
Timing chain and tensioner. New intake valves, machine head, new intake camshaft. Oil change, coolant flush 
Oct 2021

207000 mi

US $500
Broken sunroof drain hose 
Audi A4 in California, United States
Jun 2017 - Sep 2018
Sep 2017

130000 mi

US $525
Battery not charging. Alternator tested as failing, replaced. 
Sep 2018

152000 mi

US $1350
2 injectors were leaking fuel. Intake manifold operating improperly, stuck. All replaced. 
Audi A4 in British Columbia, Canada
Jun 2009 - Mar 2011
Dec 2009

5580 mi
ipod interface (AMI) is causing my ipod to lock up and requires a reset to continue working. There is apparently a firmware update that is currrently unavailable in Canada. Problem is intermittent and says "Device cannot be read" 
Nov 2010

11780 mi
problem replicated, ipod cable replaced. Worked for a few days and locked up again. Dealer is working on new solution Low speed steering shudder on slick surfaces. Power steering hoses were replaced on TSB. Problem corrected. TSB Turbo coolant pipe replaced 
Audi A4 in Ohio, United States
Nov 2010 - Oct 2020
Dec 2012

40000 mi
While under the car to change the oil, I noticed a residue of dried coolant on the side of the engine oil sump. It led up the side of the engine to a very slow leak associated with the water pump. 
Jun 2014

60000 mi

US $280
A temperature/pressure sensor failed and had to be accessed for replacement. 
Mar 2016

80000 mi
The car has recently been consuming more motor oil than before. The re is an action to deal with this issue. The oil separator and front crankshaft oil seal were replaced and the ECU was reprogramed. 
May 2016

80900 mi
Engine was disassembled and new pistons and rings were installed. A new timing chain and timing chain tensioner was also installed 
Mar 2017

89000 mi

US $1300
Intake manifold developed an air leak and triggered a misfire and check engine light. The manifold had to be removed and replaced. While the manifold was off, the intake valves were cleaned. 
Dec 2017

96000 mi
Rear hatch window washer stopped spraying. The nozzle was removed, soaked in vinegar, and unclogged by cleaning it with a small gauge wire. This restored the washer function. 
Jan 2019

105000 mi

US $40
The clamp that connects the front section of the exhaust system to the rear muffler rusted and began to leak. The clamp was replaced before it failed completely 
Apr 2019

109000 mi

US $1100
Replaced blown left xenon headlight bulb. Replaced worn brake rotors and pads 
Audi A4 in Massachusetts, United States
Jun 2011 - Jun 2022
Oct 2011

41000 mi
Air bag light. Was previously repaired by a different dealer who said they replaced the airbag. Came on again after 3 months, current dealer replaced airbag again, still not fixed, then electronic airbag control module. Backordered. 
Jan 2014

96500 mi

US $85
replace electronic ignition key lock mechanism after getting a 'defective ignition lock' error messagernrncar is on CPO, copay $85. 
Aug 2014

87200 mi

US $85
Excessive oil consumption. Dealer replaced oil 'separator' and initiated consumption test. Sunroof would not close - 'bounced' back when trying to close as if it hit an obstacle. Replaced motor. Worked for a little while. 
Sep 2014

90000 mi
Sunroof again does not close, bounces back. This time they just cleaned and lubed it, and it has worked ok since then. I suspect that the cleaning and lube was all it needed. 
Nov 2014

92000 mi

US $280
significant oil leak from rear main seal 
Nov 2016

104500 mi

US $200
significant water leak into trunk area wheel well (Avant). Sunroof drains were clogged from tree drippings. Some cables got wet, ignition key would not come out and car could not be turned off -- had to remove fuel pump fuse. 
Jul 2017

109000 mi

US $900
front calipers partly frozen, pedal soft and low. Rotors damaged from rust, not just scored and not just on surface. Ground down and lubed caliper pins, replaced front and rear pads and rotors. 
Nov 2021

127000 mi

US $4000
not shifting correctly in 'automatic' mode, though shifting ok manually. Full transmission service, plus some kind of 'update'. Now works well horn not working. Lots of hours of diagnosis.Turned out to be wiring problem and module problem. Now working. ABS not working - dash warning - and turn signals didn't turn off. Replaced the steering angle sensor oil level sensor not working, warning light stayed on even after changing oil. Replaced sensor brakes badly vibrating. Installed new pads and rotors, cleaned and lubed caliper pins.  Water accumulating in trunk/spare tire well, near the amplifier. Pools into the area all the way at the back driver's corner of that hatch, just above the bumper, or maybe even into the bumper area. Diagnosed, removed headliner, re-attached drain tubes, fixed another small leak. Update, April 2022: Looks like it is leaking again. Rear caliper bleed valves frozen. Very expensive to replace calipers (over $1200 each) if the valves are broken trying to open them, so did not flush brake fluid from rear lines. 
Feb 2022

127000 mi

US $550
investigated water leaking into Avant rear next to amplifier, and claimed it was because my suspension was lowered from the stock to the stock sport. And reconnected sunroof drains after removing then reinstalling the headliner. This only worked for a short period of time. 
May 2022

129000 mi
returned car to shop that tried to fix it before, since lots of water on interior floor of car. They redid previous repair to sunroof drains, and seems to work ok now 
Audi A4 in New York, United States
Feb 2011 - Oct 2014
Jun 2014

35000 mi

US $50
Sun visor clip broke off. The dealer replaced it. 
Audi A4 in New York, United States
Jun 2017 - Sep 2017
Apr 2017

90000 mi
water pump replaced replaced brake pads rotors FRONT 
Aug 2017

93000 mi

US $700
brake vacuum pump leak replacement replace ball joints 
Audi A4 in North Carolina, United States
Jul 2010 - Mar 2013
Aug 2010

19000 mi

US $55
Low speed shudder and high speed vibration. Power steering hose was replaced and new control arms were installed. Four wheel balance performed. 
Oct 2010

21700 mi
After having the control arms replaced via the TSB at Audi Raleigh, the highway vibration is still there. Considered trading on a new Q5 2.0T but residual value was terrible on Q5 and trade-in value on A4 horrific. No clue what to do now! 
Nov 2010

22000 mi
Wipers totally stopped working. On second occassion, took to dealer. Was a wiring harness/or relay. Replaced. Also the driver's sun visor wouldn't say put, replaced. 
Aug 2012

45000 mi
Turbo assembly had to be replaced. 
Audi A4 in Illinois, United States
Oct 2009 - Oct 2013
Jun 2011

29000 mi
Both electrical panels for lights in back of car failed and needed replacement. Panels lights include brake, turn signal, and parking. Both electrical panels for lights in back of car failed and needed replacement. Panels lights include brake, turn signal, and parking 
Audi A4 in New York, United States
Jan 2013 - Nov 2020
May 2013

26000 mi

US $6
Replaced rear right brake light/turn signal 
Jul 2015

41200 mi
After bringing in for oil change on June 24, oil light came on and brought it back on July 23. Less than 1000 miles later. Dealer did Step one repair of oil burning recall procedure. Said to bring back if issue continues. For step 2. 
Nov 2015

42900 mi

US $650
Oil light came on again, and step 2 was performed of Audi class action suit for Oil consumption. Dealer says the engine "basically now has zero miles" New pistons, rear seal, and also a new water pump. 
Jul 2017

52000 mi

US $20
Replaced HID headlight on right side after getting dipped right headlight error message 
Audi A4 in Georgia, United States
Dec 2008 - Nov 2015
Jul 2009

11000 mi
60 MPH steering vibration Creaking or ticking noise from Open Sky panoramic sunroof. 
Jun 2012

53000 mi
Stereo module in trunk would not turn off after turning off the car. It would drain the battery completely after a few days. Module replaced. 
May 2015

71000 mi

US $2207
Rear sunroof drain in panoramic sunroof became clogged and water overflowed into interior and on to the stereo amplifier. The stereo amplifier had to be replaced and the drains cleaned out. 
Audi A4 in Michigan, United States
Nov 2014 - Sep 2019
May 2018

142000 mi

US $30
Replaced the display screen 
Audi A4 in California, United States
Jun 2017 - Jun 2022
Jul 2018

145000 mi

US $560
Wheel bearing replaced 
Audi A4 in California, United States
Nov 2013 - Apr 2014
Nov 2013

42000 mi
Engine start button: letters started peeling off Driver's side door lock/unlock button: falls off when press unlock 
Feb 2014

44400 mi

US $444
Fuel filler door jammed and would not open. Couldn't gas up the car! 
Audi A4 in California, United States
Jan 2009 - Mar 2010
Apr 2009

7000 mi
Sunroof water leakage. Sunroof cassette and headliner replaced 
Audi A4 in California, United States
Aug 2014 - Jul 2015
Mar 2014

39000 mi
Rear hatch motor malfunctioned. Replaced under warranty. 
Audi A4 in Illinois, United States
Dec 2008 - Oct 2016
Feb 2009 Continuing electrical problem. Final determination was that the turn signal module was causing the audio amplifier to turn back on after the car was shut off. 
Jun 2011

25000 mi
Backup camera not working properly. Tightened cable. 
Oct 2011

28500 mi
Backup camera not working again two months later. Cable replaced. Fixed problem 
Jul 2013

49300 mi
A/C & heater blower motor controller was not working properly. Fan would come on only slightly or not at all. Replaced with new blower controller but it didn't work either. 2nd time around the new part worked. 
Jan 2014

47000 mi

US $550
PCV valve failed resulting in excessive oil 'consumption' 
Feb 2014

56000 mi

US $325
Engine was misfiring and thus running very rough. Problem was finally diagnosed as an ignition coil failing 
Feb 2015

66000 mi

US $150
Lock sensor on exterior of door (for keyless entry/exit) was not working 
Jul 2015

69500 mi
High oil consumption. Replaced pistons and rings. 
Nov 2015

72000 mi

US $1500
Keyless door locking and unlocking not working Headlights not rotating up into position 
Sep 2016

87000 mi

US $400
Accessory belt idler wheel broke and was replaced 
Audi A4 in California, United States
Feb 2011 - Apr 2011
Mar 2011

42000 mi
Faulty turbo boost Diverter Valve. Repaired under warranty. 
Audi A4 in Massachusetts, United States
Aug 2013 - Jan 2015
May 2014

34300 mi

US $18
REPLACE CYLINDERS BECAUSE FOR EXCESSIVE OIL USE.  PROBLEM WITH SEAT BELT SENSOR AND AIR BAGS 
Dec 2014

36000 mi

US $1482
There was a blockage in the rear sunroof drains which caused an electrical short which caused an electrical short to the camera and the loud speaker amplifier. 

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2009 Audi A4 4dr Wagon

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

Audi A4 in Norway
Sep 2015 - Jul 2017
Oct 2016

66220 mi

$400
Battery worn out, time and wear 

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2009 Audi A4 4dr Wagon

supercharged 333hp 3.0L V6 6-speed manual AWD

Audi A4 in Great Britain
Sep 2014 - Feb 2017
Apr 2016

119200 mi

£420
Clutch Master and Slave cylinders replaced. 

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2009 Audi A4 4dr Sedan

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

Audi A4 in Oregon, United States
Jun 2009 - Dec 2012
Sep 2011

20000 mi
Cruise control would not engage or respond. The cruise control switch was replaced. 
Audi A4 in California, United States
Jun 2009 - May 2012
Sep 2011

31000 mi
Audi TSB 
Audi A4 in California, United States
Jul 2009 - Jun 2011
Sep 2009

5000 mi
Brakes were making a clunking noise when in use. All calipers and pad were replaced at 2000 miles. Had someone from Audi look at it. 
Oct 2009

8000 mi
CVT was shifting funny... computer setting fixed the issue. 
Apr 2010

14000 mi
Car is still at the dealer. This seems to be a braking issue. But the dealer still can't pinpoint the cause and solution. 
Audi A4 in Texas, United States
Feb 2015 - Jul 2015
Jul 2015

55000 mi

US $1700
This month the car was taken in for a recall -- also found that the engine mounts needed replacing. Cost 1700.00. 
Audi A4 in Victoria, Australia
Dec 2012 - Jan 2014
Feb 2012

23560 mi
PCV changed, ecu reflash, camshaft adjusters 
Dec 2012

40300 mi

A $1200
stage 2 repair, piston and rings 
Audi A4 in California, United States
Jul 2009 - Jun 2021
Jun 2010

10000 mi
Got my control arms and power steering hose replaced due to vibration issues. Covered under warranty. 
Jun 2014

51000 mi

US $650
Leaking waterpump. Replaced pump and thermostat. 
Sep 2016

75000 mi

US $3000
Leaking water pump 3 leaking engine mounts 
May 2018

90000 mi

US $500
Bad coil pack causing cylinder misfire. Replaced all 4 coil packs. 
Audi A4 in Arizona, United States
Jul 2009 - Jun 2011
Aug 2009

1000 mi
vibration felt at highway speeds. vibration problem resolved. vehicle drives smooth. 
Audi A4 in California, United States
May 2016 - Dec 2016
Jun 2016

50000 mi
Oil leak. 2 Coolant leaks. 
Audi A4 in Minnesota, United States
Mar 2009 - Apr 2016
Sep 2009

5000 mi
Moonroof air deflector poorly designed resulting in a rumbling sound between 25-45mph. Dealer ordered a redesigned air deflector. Redesigned moonroof air deflector installed sucessfully and wind rumbling noise now gone. 
Oct 2009

6000 mi
The weatherstripping across the bottom of both front doors was beginning to separate from the door. Dealer reattached successfully, per TSB. 
Jul 2010

15000 mi
Power steering hose design was defective - replaced with redesigned power steering hose. 
Apr 2012

35500 mi
Replaced two interior door wood trim pieces, both of which were cracked. 
Aug 2012

39100 mi
Fuel door would not release. Replaced door electrical actuator. 
May 2015

75000 mi

US $1460
Replaced crankcase vent valve, replaced front crankcase seal, perform software update, carbon blast intake valves. 
Audi A4 in California, United States
Jul 2012 - May 2014
Sep 2012

25000 mi
Had known issues with 2009 a4 taken care of shudder at low speed and shudder at highway speeds under warranty. Lower control arms and power steering hose replaced. Now care drives perfect, no more shudder. 
Audi A4 in British Columbia, Canada
Apr 2015 - Dec 2017
May 2017

50220 mi

C $600
Key sticking in ignition, whole ignition piece needed replacement. Compressor needs repacement 
Audi A4 in California, United States
Mar 2009 - Mar 2010
Aug 2009

7000 mi
back right open/close window button comes loose and pops out 
Audi A4 in Michigan, United States
Mar 2013 - Feb 2022
Sep 2015

68000 mi
Excessive oil consumption. Took car to dealer. Replaced some components and upgraded ECU software. 
Oct 2015

68300 mi
Replaced pistons, rings and other components 
Oct 2016

76200 mi

US $3600
Shifting problems. Transmission jerking when going from 45 to 60 mph. Only upgraded software with no correction Dealer recommends changing transmission. No reman units available. Replace with new transmission 
Jun 2021

119000 mi

US $850
Alternator bearing worn out causing noise. Alternator assembly replaced. 
Aug 2021

121000 mi

US $1500
A/C stopped cooling. Internal issue with AC. Replaced 

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2009 Audi A4 4dr Sedan

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

Audi A4 in Georgia, United States
- Oct 2008
Oct 2008

1800 mi
Bad water pump. Waiting on part from Germany. Total time in the shop will be over 2 weeks. 
Audi A4 in Illinois, United States
Feb 2010 - Jun 2012
Mar 2010

14000 mi
Proximity sensor for keyless entry failed for second time in a couple of months. Both rear door handles had to be replaced. That repair caused the inner door handle to fail shortly after picking the car up. Now need to return for that repair! 
Jul 2010

18700 mi
Sunroof pinch sensor malfunctioning and was difficult to close sunroof 
Dec 2010

25000 mi
Steering vibration when turning wheel at slow speeds Passenger sun visor clip broken 
Jun 2011

29000 mi
Lower control arms (finally) replaced 
Audi A4 in Nebraska, United States
Mar 2010 - Mar 2014
Jun 2010

18000 mi
Slight vibration at low speeds from steering wheel column. Power steering hose replaced according to the TSB  
Dec 2010

23000 mi
Radio sound issues. Would cut in and out and was not clear. Bang and Olufsen system as well. Amp was replaced, but did not fix the problem. Air conditioning fan whistles. Less frequent, but still happens 
Apr 2011

28000 mi
Sound cutting in and out. Was told that it is the DSP system in the Bang and Olufsen sound system. New antenna installed. Problem is only slightly better. 
Dec 2011

36000 mi
My air conditioning was whistling. Had been repaired before and had come back again. Dealer could not replicate so no repair was completed. 
Audi A4 in Ontario, Canada
Feb 2011 - Apr 2020
Apr 2014

55180 mi

C $1
Oil consumption 
Feb 2015

62860 mi

C $1
Passenger side underbody panel came loose 
May 2015

64480 mi
Car shakes under load at low rpm. Suspected u-joint, torque converter or other problem 
Sep 2015

80600 mi

C $250
Fuel injectors replaced (x2). Carbon cleaning. 
Oct 2015

84320 mi

C $250
Piston rings and Pistons replaced for oil consumption 
Audi A4 in District of Columbia, United States
Feb 2010 - Jul 2013
Aug 2010

17700 mi

US $500
Car using over 1 quart of oil every 500 mi. 
Audi A4 in New Jersey, United States
Jul 2010 - May 2016
Sep 2010

18000 mi
Rear suspension bushing making noise 
Mar 2012

33000 mi
Replace crankcase pressure regulator valve 
May 2012

33900 mi
Replace camshaft adjuster. Preventative. The car showed no symptoms. The dealer just volunteered to do it.  
Jul 2013

46000 mi

US $3000
Air conditioner enclosure leaking - water pooled on floor. Replaced the enclosure and the fan control module. Door gaskets detached. Gaskets were replaced. 
Audi A4 in Alabama, United States
Jul 2010 - Dec 2014
Nov 2012

30900 mi
Low speed stutter in steering. Hose replaced. 
Audi A4 in Georgia, United States
Jul 2016 - Apr 2017
Oct 2016

108800 mi

US $7000
Engine Replacement: catastrophic failure due to tensioner failing 
Audi A4 in Massachusetts, United States
Mar 2013 - Sep 2018
Jul 2013

89700 mi
Oil consumption/leakage. In the shop for diagnosis. 
Sep 2013

93000 mi
New pistons / rings / gaskets - oil consumption issue. It seems mostly fixed, but still consuming a little oil (very little compared to what it was consuming). 
Mar 2017

134000 mi

US $500
Rear shock was leaking. Also damage repair from prior accident. 
Apr 2017

135000 mi

US $250
Car was blowing hot air. AC leak was repaired. 
Audi A4 in Michigan, United States
Feb 2013 - Mar 2013
Mar 2013

32000 mi
Steering wheel shudder/judder at low speeds when backing out of a parking spot. Steering wheel vibration at highway speeds. Dealer could not duplicate the problem. This is now the 4th time the car has been in for this problem 
Audi A4 in Michigan, United States
Jan 2013 - Jan 2018
Oct 2013

91000 mi

US $2500
Computer system issue 
Sep 2017

195000 mi

US $8200
Blown timing chain. Full engine replacement. 
Audi A4 in Alberta, Canada
Jan 2013 - Jul 2022
Apr 2015

60420 mi

C $850
Engine light came on--Needed to replace water pump and change oil separator. Car still drinking too much oil. 
Oct 2015

70460 mi
Excess oil burn. They made the service adjustment in early April but no change. Taking it in for another fix. 
Nov 2015

71260 mi
Excess oil consumption. Dealer did a measurement. There is a class action law suit Audi has settled on excess engine oil consumption. Problem still not resolved on the car. I'm taking it in again. 
Jan 2016

72840 mi
Excess oil consumption. Dealer still had not resolved it per Audi of America directions. 
Jul 2016

77480 mi

C $1700
Excess oil consumption-went Audi court settled repairs for warrantied Piston rings, bearings replacement. Covered by Audi. Car still consuming excess oil-going back to dealer for test I paid for timing chain, oil pan and carbon cleaning. 
Sep 2016

80600 mi
Additional repairs for excess oil consumption. Car was tested and rings, piston and oil cover were replaced. Appears to be fixed. 
Mar 2017

83080 mi

C $900
After piston replacement job done by Audi, the timing cover chain was leaking oil. It required a warranty work Intake manifold issue sensor not working within parameters. Engine light coming on. I had to have the intake manifold replaced. 
Nov 2017

90520 mi

C $990
Front Right Passenger Door Actuator lock failed and had to be replaced 
Oct 2020

109120 mi

C $900
Rear Right side wheel bearing 
Nov 2021

111 mi

C $300
Left Rear wheel bearing replacement 
Audi A4 in Wyoming, United States
Dec 2012 - Jun 2018
Jan 2014

64500 mi
Oil Consumption, replace PCV & gasket, pulley bolt and ECM flash. 
Feb 2014

51100 mi
Oil consumption part two. Replace pistons, rings, and all gaskets. 
Jul 2016

71500 mi

US $100
Timing chain tensioner failure. Headlights replaced. 
Audi A4 in Texas, United States
Apr 2016 - Apr 2016
Apr 2016

87000 mi

US $800
Water pump failed and leaked coolant. Water pump was replaced. 
Audi A4 in Pennsylvania, United States
Nov 2015 - Jul 2017
Dec 2015

92000 mi

US $550
Motor Mounts 
Jan 2017

110000 mi

US $800
New Turbo 
Jul 2017

116000 mi
timing chain broken - car is scrap 
Audi A4 in New York, United States
May 2015 - Mar 2016
Jun 2015

106000 mi
Check engine light with code P2181 which is a well known issue with a coolant temperature sensor 
Mar 2016

118000 mi

US $2000
Timing chain stretched resulting in $2000 repair to replace with no assurance that it would fix issue. Decided to trade in for 2013 Audi A6 
Audi A4 in Georgia, United States
Oct 2013 - Dec 2016
Jul 2016

116700 mi
Alternator. 
Audi A4 in Colorado, United States
Jul 2012 - Dec 2017
Sep 2012

51000 mi
Replace lower control arm bushings, shimmy at high speeds 
Oct 2012

52000 mi

US $85
Cruise control wouldn't work. Dealer replaced steering column stalk. Now works as it should. Fuel filler door servo intermittant. Replaced servo under CPO. Low speed shudder while turning. power steering hose replaced via TSB. 
Mar 2014

74000 mi

US $85
Known oil consumption issue with this 2.0t engine. Took in for Stage 1 and Stage 2 repairs. Oil use was 0.5l/1000mi. Received new pistons and rings. So after 500mi, no oil consumption issues. 
Nov 2014

84700 mi

US $450
Front passenger door wouldn't lock. Diagnosed as needing a new actuator. Actuator replaced. 
Dec 2014

84000 mi

US $400
Intake manifold leaking. Redesigned intake manifold installed. Audi paid for one-half of bill as car is only 4 months out of CPO warranty. 
Jul 2016

107000 mi

US $1800
Rear main seal leaking. Rear main seal replaced. 
Feb 2017

115583 mi

US $330
Replaced driver's door actuator. Also included car rental for 1 day. 
Apr 2017

117000 mi

US $70
Passenger side HID lamp burned out. Replaced both bulbs. 
May 2017

118000 mi

US $110
Heating element on the upstream O2 sensor failed. Replaced sensor. 
Jul 2017

119000 mi

US $50
Drivers side rear door latch assembly replaced. Bought used part on ebay and replaced it myself. 
Audi A4 in Arizona, United States
Jun 2012 - Nov 2015
Jun 2014

49000 mi
turbo assembly and water pump replaced. 
Nov 2014

55000 mi
air in brake lines. mechanical bleed did not work, brakes we manually bled and problem corrected. 
Audi A4 in California, United States
Jul 2011 - Jun 2013
Apr 2012

32000 mi
Visor clip broke during use, was replaced under warranty. 
Sep 2012

37000 mi
Excessive oil consumption 
Dec 2012

42000 mi
Center rear brake light was intermittently giving a signal that it was burnt out but wasn't. The dealer replaced the rear center brake light assembly.  
Audi A4 in Iowa, United States
Jun 2011 - Jul 2018
Jan 2015

53300 mi

US $675
Intake manifold had a faulty flap and needed replacing. 
Mar 2015

55000 mi

US $222
Battery died Oil separator valve leaking 
Jan 2016

56700 mi
Engine was built with one piston of the wrong size, causing excessive oil consumption. Audi did consumption tests and determined that the engine needed to be rebuilt with the correct part installed. 
Audi A4 in Washington, United States
Oct 2010 - Jun 2011
Nov 2010

24000 mi
door locks dont function with audi advanced key 
Dec 2010

26000 mi
Door handles replaced 
Audi A4 in New York, United States
Sep 2011 - Feb 2013
Feb 2013

68000 mi

US $1000
MISFIRE CYLINDER #1, ALSO BURNING A QUART OF OIL PER 1200 MILES. NEVER GOT TO THE MIS FIRING PROBLEM, SOLD CAR..... 
Audi A4 in Massachusetts, United States
Sep 2011 - Jun 2012
Apr 2012

47500 mi
Engine was consuming excessive oil. Got a low oil error on the dashboard. The car was still under warranty, so they put some new parts and adjusted the cam shaft position. Dealer told that they are aware of this problem with Audis with turbo 
Audi A4 in Michigan, United States
May 2012 - Mar 2016
Oct 2012

41000 mi
It feels like the vehicle is not driving smooth. You can feel some annoying vibration coming in to the cabin at 55+mph on smooth roads. 
Aug 2013

44000 mi
Engine was burning oil too quickly. The dealer had to make some adjustments to fix the problem, but no details were provided. 
Oct 2013

45500 mi

US $500
Ignition Key was not starting the engine sometimes. A yellow key symbol with a red cross (X) on it came on the instrument panel with an error message. 
Audi A4 in Massachusetts, United States
Mar 2012 - Sep 2015
Apr 2012

42500 mi
Center rear break light failed 
Dec 2013

59000 mi

US $85
Broken caliper causing loud banging noise when braking in reverse (after having been driven forward). 
Sep 2014

66000 mi
Temp gauge was drifting down after the car came up to operating temp. Diagnosed as failed thermostat. Replaced thermostat / water pump assembly under CPO. Coolant leaked after picking car up, replaced with second water pump assembly. 
Jul 2015

70000 mi

US $1500
Sunroof frame cracked, water leaked in and stained the headliner and soaked the carpet. Sunroof frame was replaced, interior cleaned. 
Audi A4 in New Mexico, United States
Nov 2011 - Oct 2014
Feb 2012

26800 mi
car shuddered badly at slow speeds. dealer replaced a hose and it's 90% bettter 
Jul 2012

31300 mi
Steering shudder 
Oct 2014

51000 mi

US $2300
Turbo charger failed 
Audi A4 in New York, United States
Mar 2017 - Mar 2018
Apr 2017

105000 mi
Total engine replacement. 2012 Audi A4 engine put in. This was due to the notorious Audi Oil Consumption problem noted in previous year models. I had the car back from this repair for two weeks when the 2012 engine then blew on April 4th. Two weeks after the installation of a 2012 engine into the 2009, the engine blew again on the highway. 
Sep 2017

118000 mi

US $745
Wheel bearing was rusted on and shot. Oil change. 
Audi A4 in Texas, United States
Sep 2009 - Dec 2010
Mar 2010

18000 mi
Found runner assembly in intake manifold was loose causing vacuum leak 
Apr 2010

18700 mi
Installation of ordered part, car now runs normally 
Audi A4 in California, United States
Feb 2009 - Mar 2010
Audi A4 in New York, United States
Mar 2009 - Sep 2011
Sep 2009

9000 mi
Door rubber trim became unglued. Per existing TSB repaired with new glue. 
Audi A4 in New Jersey, United States
Jan 2009 - Mar 2013
Jul 2011

48000 mi
Intake manifold replaced - valve popped out replaced leaking water pump 
Aug 2011

50000 mi
engine running rich - high pressure fuel pump replaced 
Mar 2012

63000 mi
passenger outside mirror not heating up with defrost on 
Sep 2012

76000 mi
oil consumption TSB stage 1 and 2 - replace breather valve - replace pistons/piston rings camshaft damaged - replaced timing chain stretched and damaged - replaced 
Audi A4 in South Carolina, United States
Jan 2009 - May 2010
Aug 2009

5000 mi

US $87
Steering wheel shimmy. Re-balanced tires, but that did not solve the problem. Problem may be caused by bad bushings in front control arms. 
Mar 2010

11800 mi
Replace hose on power steering pump to stop low-speed vibration. replaced hose on steering pump to stop low-speed shudder 
May 2010

11800 mi
The shimmy was still there when I traded the A4, although the dealer had road forced balanced the wheels twice. We were at the point where he was going to request replacement control arms for the fix. 
Audi A4 in Ontario, Canada
Oct 2010 - Mar 2013
Jun 2011

32860 mi
The steering was very noisy when turning the wheels left and right, the dealer order the part to fix it, they said it was a known problem but I can't find the paper explaining the exact problem. 
Audi A4 in Texas, United States
Sep 2009 - Jun 2018
Oct 2014

69000 mi

US $2830
Replace faulty blower motor and switch Replace water pump due to coolant leak Replace faulty motor mount due to hydraulic fluid leak 
Mar 2018

97000 mi

US $700
Worn calipers, rotors and pads 
Audi A4 in Ontario, Canada
Apr 2009 - Apr 2013
Jul 2009

2480 mi
Weather stripping/seals coming off along bottom of both driver (completely off) and passenger (starting to come off) front doors. Informed of a TSB regarding issue, new adhesive to be ordered. 
Aug 2009

3100 mi
Return trip to have seals replaced and glued using new adhesive. 
Nov 2012

32640 mi
Car displayed "Ignition lock defective" message on cold mornings. 
Audi A4 in Alabama, United States
Mar 2009 - Mar 2010
Jul 2009

7000 mi
Steering wheel vibration at high speeds. Unresolved. Strong spare tire rubber smell invaded the cabin when ambient temperatures became too high. Resolved. Wrapped the spare tire in plastic bags. 
Audi A4 in Kentucky, United States
Apr 2009 - May 2015
Apr 2009

112 mi
Lever to adjust steering wheel wouldn't lock. Was repaired in 10 minutes. 
Dec 2009

7000 mi
Static in rear speaker, new part ordered and replaced by dealer under warranty. 
Dec 2014

58000 mi

US $350
Replaced battery 
Mar 2015

60000 mi

US $62
Engine control unit 
Audi A4 in Illinois, United States
Mar 2009 - Mar 2015
Sep 2013

47000 mi
Needed a new turbo. Out of warranty time wise but within warranty mileage wise. AOA covered the repairs after a little nudge from me. 
Mar 2015

68000 mi

US $350
Needed a new water pump Needed to replace the right front headlight assembly. 
Audi A4 in Ohio, United States
May 2009 - Dec 2012
Jul 2009

16000 mi
Shimmy at speeds of 65 - 72MPH. Dealer knew of problem, there is a TSB and parts have to be ordered. 
Feb 2010

30300 mi
Bright trim on door edges lost its luster, spotted and instead of shiny turned white. Parts were ordered, replaced, car was in body shop 1 day, no charges, car cleaned -- use of 2010 Q5 loaner. Happy with outcome. Second Audi with same problem. 
Jun 2010

37000 mi
Chrome trim on upper surface of front doors (left and right) was replaced under warranty (rear had been replaced some time ago) 
Audi A4 in Maryland, United States
Jan 2009 - Jan 2022
Nov 2015

65100 mi
Conducted Part 1 of 2 part 2.0 TFSI engine oil consumption test for excess oil consumption. 
Mar 2016

68000 mi
Part 2 of oil consumption repair. Replaced pistons and rings due to excessive oil consumption. 
Dec 2021

116000 mi

US $950
Water pump failed and replaced. 
Audi A4 in Rhode Island, United States
Nov 2008 - Dec 2016
Nov 2009

15000 mi
Blinking CEL, no power under boost, white exhaust and fuel smell, and rough idle. Was able to drive to dealer. Dealer found bad fuel injector. Part was back ordered, once dealer received part, was fixed that day. 
Sep 2010

26000 mi
My intake manifold was leaking and they replaced the gasket I believe. Running great now! 
Apr 2013

62800 mi
Oil consumption test. "Passed test". No repairs offered, told to add oil as needed. 
Jun 2013

66000 mi

US $400
Ac not working, they replaced high pressure vavle. Did not fix the problem and asked for $250 more for additional diagnosis. Refused and I am driving a car without ac. Will not take it back to dealer. 
Dec 2016

114000 mi
I never had the A/C fixed. The quoted price was $3K and the dealership told me it may not last very long if fixed. 
Audi A4 in Massachusetts, United States
Oct 2008 - Sep 2011
Jul 2009

11000 mi
Like many 2009 Audi A-4's, mine has a steering wheel vibration at 65-75 mph. Factory knows about this. (See Edmund's site). New lower control arms and bushings are on order. 
Aug 2009

13000 mi
Exactly as Edmunds described it. Vibration in steering wheel at 65-75 mph. If TTAC would spend less time worrying about General Motors, and more on nuts and bolts problems like this and ones many others are experiencing, it wouldn't be such a bad thing. 
Sep 2009

14000 mi
The lower control arms were replaced, the wheels were hard road balanced, and the car, so far at least, feels perfect. Problem appears to be resolved. 
Audi A4 in Alberta, Canada
Sep 2008 - Apr 2011
Dec 2009

8060 mi
Fuel gauge was reading empty after filling up the gas tank to full 
Audi A4 in Colorado, United States
Aug 2008 - Sep 2011
Sep 2011

32000 mi
Replaced "camshaft adjuster-in ELSA" under warranty 
Audi A4 in Washington, United States
Dec 2008 - Apr 2011
Mar 2011

23000 mi
Door locks failed and were repaired 
Audi A4 in Ontario, Canada
Jan 2009 - Jun 2011
Jul 2010

17980 mi
replaced driver's seat due to leather wear 
Audi A4 in Connecticut, United States
Dec 2008 - Mar 2018
May 2017

99000 mi

US $1600
preemptively replaced timing chain / camshaft. Drain and replace transmission fluid. 
Audi A4 in Virginia, United States
Dec 2008 - Jun 2011
Feb 2009

5000 mi
Key occasionally does not release from ignition slot upon turning off the engine. When warm, engine causes car to shake slightly when in gear and releasing the brake pedal, as to accelerate from a stop at a stoplight. 
Aug 2009

13000 mi
Key fob was stuck in ignition, could not be removed, car could not be shut off. Key extracted, switch should be OK, but cosmetic plastic "gateway" for fob was broken during extraction, and has not been replaced. 
Dec 2009

17000 mi
Traction control seems to set off ABS when going over select speed bumps, contrary to road conditions, occasionally causing temporary loss of control of vehicle. 
Jan 2010

19000 mi
Same exact problem as previous trip; this time, technician from Audi of America looked at vehicle. Could not replicate problem, proclaimed the vehicle was operating within Audi specs and ordered the vehicle returned to me without repair. Yet another trip, following lead tech's visit to my home to experience the problem on his own. However, this was not listed on the W/O, so officially, Audi is still treating this as a non-problem. 
Audi A4 in California, United States
Dec 2008 - Sep 2012
Jul 2010

20700 mi
Car started shaking when driving and made loud grinding sound. 
Mar 2011

38000 mi
The car felt like it was stalling while driving and prior to stopping. Software was updated to repair problem. 
Oct 2011

46500 mi
Low oil light would come on frequently even after filling up. Software was installed to correct. 
Audi A4 in Arizona, United States
Apr 2009 - Mar 2015
Jul 2009

3500 mi
In warranty tire replacement to alleviate vibration. Control arms ordered and will be installed in about a month. In-warranty tire replacement to alleviate vibration. Control arms ordered and will be installed in about a month. 
Sep 2009

7000 mi
Control arms replaced. Control arms replaced. Air conditioner exhibited strange smells. filter was wet, A/C cleaned and filter replaced by dealer. 
Dec 2009

11000 mi
Replaced the "START ENGINE" button because a small chunk of the metal came off. 
Jun 2010

19000 mi
Passenger visor broke  
Nov 2011

32000 mi
Side assist malfunction. 
Jan 2013

41000 mi
Faulty ECU, caused battery to completely discharge. Dealership replacing under warranty. 
Feb 2013

41700 mi
Battery died again, dealership replaced headlights, battery, instrument cluster and a bunch of other things. installed headlights from previous repair was no leveled properly. driver side light perpetually in a high beam like postion. still in the shop right now. 
Mar 2015

60000 mi

US $900
replaced both cooling fans due to failure 
Audi A4 in Kansas, United States
Aug 2009 - Apr 2011
Sep 2009

5000 mi
Tires were never adjusted from shipping pressure of 50 psi. 
Audi A4 in New Jersey, United States
Aug 2009 - Jan 2013
Feb 2010

2000 mi
Comfort access door handle sensor failure Comfort access - door sensor replaced 
Jun 2010

6000 mi
Booming from sunroof when open - TSB to replace sunroof deflector. Suspension fault in dashboard. Repaired wire harness for sensors. Steering shimmy - roadforce balanced wheels as per TSB. Suspension fault. Wire harness replaced due to defective wire. Lower control arms replaced as per TSB 
Jan 2013

29000 mi
Replaced drivers door handle due to internal short for keyless access. 
Audi A4 in Arkansas, United States
Oct 2010 - Jun 2011
Nov 2010

30000 mi
TPMS sensor on one wheel bad. 
Audi A4 in Illinois, United States
Jun 2009 - Mar 2010
Aug 2009

1200 mi
known issuee on all B8 Steering wheel Vibrations 
Sep 2009

1400 mi
Fix rattling noises on the drivers side 
Audi A4 in Ohio, United States
Jun 2009 - Oct 2017
Mar 2010

6000 mi
The electronic sensor in the door handle which activates when the key fob is near to open the door quit accepting signals. The whole door handle has to be replaced so part was ordered, has to be painted, and then installed on car at another date. 
Apr 2010

6000 mi
Sensor in door handle to unlock the doors as you approach with the key fob. 
Dec 2011

25000 mi
Flash the ECM to update the software 
Mar 2012

30000 mi
Keyless proximity sensor on the door handle failed for the second time-but on a different handle but if one fails they all don't work. Oil Consumption in excess of manufacturers recommended add levels. 
Apr 2012

31000 mi
The car failed the oil consumption test parameters and has been slated for new piston rings. 
May 2012

31800 mi
The auto failed an oil consumption test and subsequently had the piston rings replaced due to faulty tolerances. 
Jun 2013

51000 mi
The turbo waste gate was not operating correctly 
Oct 2014

68700 mi
A long block had to be installed due to the camshaft being out of alignment and ruining the engine. The fuel line was connected improperly to the GDi pump. 
Dec 2014

72000 mi

US $1000
Battery was in excess of 5 years old and was starting to lose its charge 
Mar 2016

93000 mi

US $400
Turbo was not spooling sufficiently. Temporary fix: reflash. 
Dec 2016

103000 mi

US $4775
Turbo went bad and had to be replaced 
Jul 2017

111000 mi

US $625
Replace alternator pulley and belt 
Sep 2017

113000 mi

US $1400
catalytic converter failed and replacement failed and car had to use California emission catalytic converter to stop fault codes 
Audi A4 in Quebec, Canada
Sep 2009 - Jun 2011
Oct 2009

8680 mi
Side assist warning of cars in blind spot that were not there ! 
Jul 2010

16120 mi
Bad new design of sunroof pop up wind deflector needed to be replace original design Bad new design of sunroof pop up wind deflector needed to be replace the original design 
Jun 2011

26040 mi
Low speed steering vibration Installed new power steering hose per TSB 
Audi A4 in District of Columbia, United States
Sep 2009 - Jul 2016
Jun 2011

28000 mi
Excessive oil consumption (1 pint every 2000 miles). Dealer said within normal range, but Audi suggested a computer reflash and replacement of some parts. Excessive oil consumption described in problem 1. Parts installed. 
Feb 2012

32000 mi

US $125
Fog lamp grill popped out of car and had to be replaced. 
Dec 2013

42000 mi
Navigation system controls became erratic. Dealer wanted $125 just to evaluate the problem, with the likely repair hundreds of dollars more. Outraged, I decided to buy a portable GPS system instead. 
Nov 2015

52000 mi

US $1227
Replaced water pump. 
Jul 2016

54000 mi
Nav controls had become erratic. 
Audi A4 in Quebec, Canada
Nov 2009 - Sep 2011
Mar 2011

17360 mi
Vibration in the steering when turning the wheels at idle (no speed) Power steering pump replaced 
Audi A4 in Maryland, United States
Oct 2009 - Jul 2018
May 2010

8000 mi
rt side rear view mirror bulb assembly was faulty 
Jan 2012

22000 mi
slowly losing coolant with no apparent cause or location 
Mar 2013

33000 mi
from a stop transmission occasionally stayed in 2nd gear;would not upshift.Dealer reflashed transmission module/computer.So far alls good. Passenger side seatbelt latch sensor failed.It tripped multiple dash warning lamps. 
Audi A4 in Minnesota, United States
Jul 2009 - Aug 2012
Nov 2009

7000 mi
ignition switch replaced 
Apr 2010

14000 mi
Shudder in steering repaired with new power steering hose as per tsb.  
Audi A4 in Maryland, United States
Sep 2009 - Jun 2014
Oct 2012

24000 mi

US $95
AC threw a fault, but software update was required. Updated software for free. 
Audi A4 in Saskatchewan, Canada
Aug 2009 - Apr 2015
Jan 2011

15500 mi
vacuum hose replacement (hose was cracked and was throwing codes). 
Mar 2013

33480 mi
Squeaks coming from the rear of the car. Diagnosed as a rear door out of alignment. Adjusted door and lubricated seals around both rear doors. Problem was corrected and I wasn't charged for the service. 
Apr 2015

44640 mi
turbo - wastegate repair. No charge - recall, extended warranty item. Scheduled appt, then got CEL before taking it in. Engine performance much better. 
Audi A4 in Missouri, United States
Jun 2009 - Jun 2014
Oct 2012

63000 mi

US $107
water pump replaced. 
Audi A4 in Pennsylvania, United States
May 2009 - Jun 2012
Jul 2009

1800 mi
steering wheel vibration, 3 tires were replaced but no fix. So new control arm has been ordered, and has not yet arrived to install. shimmy steering wheel at 60-70 mph. (two trips to dealership and the problem still exits) 
Aug 2009

5000 mi
All doors' rubber moldings are loose. (dealership applied new glue but few hours later they pop out again. 
Sep 2009

6000 mi
new control arms were installed, but they do not eliminate the steering wheel vibration completely. new glue was ordered. 
Oct 2009

10000 mi
rubber moldings were replaced 
Jul 2010

26200 mi
New hose is replaced to eliminate the steering wheel vibration during parking maneuver  Occasionally, the transmission won't upshift from the 2nd to 3rd gear. Dealer refreshs the TCM. 
Nov 2010

32000 mi
Have been receiving Audi Side Assist system faulty messages constantly. Dealer updated the software per Audi TSB. Have been receiving Audi Side Assist system faulty messages constantly. Dealer updated the software per Audi TSB. 
Jan 2011

37000 mi
Side Assist System fault, button was replaced. 
Feb 2011

38000 mi
Coolant slow leak, dealer replaced water pump assembly. 
Aug 2011

47000 mi
15D6 RVU for camshaft adjuster and camshaft replacement  Tech found vacuum pump leaking and replaced vacuum pump 
Sep 2011

48000 mi
fuel pump and camshaft follower were replaced because of engine noise during acceleration  
May 2012

58300 mi
Oil leak from timing case cover seal 
Audi A4 in Virginia, United States
May 2009 - May 2011
Apr 2010

31500 mi
MMI system drops bluetooth and radio mysteriously comes on by itself. This appears to be a common problem with the A4s that Audi wont fix without error codes. Resolved itself. 

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2009 Audi A4 4dr Sedan

turbocharged 211hp 2.0L I4 6-speed manual FWD

Audi A4 in South Africa
Sep 2011 - Jun 2018
Mar 2017

104160 mi

R 80000
I was experiencing excessive oil consumption so all four pistons were replaced with OEM parts by the dealer but I had to pay the full price for the repair. 

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2009 Audi A4 4dr Sedan

turbocharged 211hp 2.0L I4 6-speed manual AWD

Audi A4 in Colorado, United States
May 2009 - Jul 2012
Sep 2011

27000 mi

US $45
updated variable valve system 
Audi A4 in Kentucky, United States
May 2012 - Jan 2015
Jan 2015

97000 mi

US $2500
Crack in water pump. Alternator burned out. 
Audi A4 in New York, United States
Mar 2012 - Dec 2013
Aug 2012

59800 mi

US $1200
Left tie rod end loose, causing vibration at 65-80 mph. I had both tie rods ends replaced as a precaution, $500. Right front upper control arm bushing noted to be ripped. Both sides (upper) preventatively replaced, $700. 
May 2013

68000 mi

US $85
Part I of Oil consumption test including replacing breather valve and seals.  Replaced water pump. Replaced gas tank cover actuator. 
Jun 2013

70000 mi
Part 2 of oil consumption test: failed Replacement of pistons and piston rings. Car started bucking at 3-5 rpm. Took to shop, but no check-engine lights came on. No fault codes found in computer. No repair made. They suspect bad fuel as the culprit. 
Sep 2013

75000 mi

US $540
Car acceleration not smooth, surging with wide open throttle. Low pressure smoke test showed a leak in the engine cover/timing belt cover. 1 day to diagnose. 1 day to install new parts. 
Audi A4 in Ontario, Canada
Apr 2009 - Apr 2017
Oct 2010

19220 mi
Damaged / missing intake manifold. Noticed due to engine stalling when turning on a side street (dangerous!!) and whole car shaking on idle. Parts ordered once diagnosed by dealer then replaced next day.  
Jun 2012

37200 mi
Front wheel bearing was replaced 
Jun 2014

57040 mi

C $500
Replaced front left bearing. front was replaced at ~50k km 
Nov 2015

68200 mi

C $400
rear headlight level sensor broke. needs to be replaced. exhaust clamp broke and had to be replaced. Discovered the problem, drove 40km to garage and exhaust almost fell.. had to wait for part to come in. 
Feb 2016

71920 mi

C $1500
Excessive oil consumption. Will have to see if I can get it covered by the dealer. water pump was cracked. excessive oil consumption. did stage 1. 
Sep 2016

76260 mi

C $1400
wheel bearings, 
Audi A4 in South Australia, Australia
Jan 2009 - Jan 2014
Mar 2009

1860 mi
Rattle from center console at city cruising speed. Ceased itself 2 days before car was booked to go to dealer, but took it anyway. Dealer checked console and trim to ensure the rattle didn't return. They didn't find anything but the rattle hasn't returned 
Mar 2011

30380 mi
The trim on the start button had begun to bubble and lift so the dealer replaced it at no charge 
Dec 2012

51460 mi

A $180
Driver's door sensor and fuel cover sensors were replaced. Keyless entry system had stopped working properly. Replaced air intake sensor. Engine warning light came on and stayed that way. 2 trips to attempt repair required. 1st attempt was just reset of codes and test drive. 
Jan 2013

52700 mi

A $200
Battery died and replaced 
Dec 2013

58280 mi

A $400
Stop/Start button surface lifting again Gear lever boot split 
Audi A4 in New Jersey, United States
May 2009 - Feb 2012
Dec 2011

89000 mi

US $6000
Complete replacement of the head 
Feb 2012

89000 mi
Check engine light on for the 6th time in 3 years. 
Audi A4 in Georgia, United States
Jul 2009 - Nov 2016
Dec 2010

31000 mi
Check engine light came on and indicated intake manifold problem. After testing determined flaps inside intake manifold were loose. Replaced intake manifold. 
Feb 2013

75700 mi

US $900
Check engine light. Indicated misfire in 3 cylinder. Determined to be carbon buildup on valves. Cleaned valves. Significant improvement in mpg noted and engine running very well 
Jun 2013

85000 mi

US $531
vent valve sticking and drawing oil from rear seal - replaced and updated computer 
Dec 2013

95000 mi

US $400
right reat door sensor for convenience locking system bad, which caused rest of sensors not to work. 
Jul 2014

105000 mi

US $450
Completed Stage 1 oil test and failed. Installed new rings and pistons. Serpintine belt failed 
Nov 2016

151000 mi
Timing chain broke or stretched requiring engine replacement. 
Audi A4 in New York, United States
Mar 2009 - Jan 2015
Mar 2010

15000 mi
Trunk side panel would not stay latched closed, upon delivery when new. Dealer ordered part and I waited until the 15k service to have it replaced. Work successful. 6 speed manual transmission has developed a 'notch' when shifting into second gear. Mechanic was able to duplicate issue and attempted repair. Adjusted shift linkage which was out of spec - improved but not good enough yet. HVAC smells like mold or mildew when the AC button is active. Dealer replaced filter as part of 15k service and hoped this would fix. Offered to deodorize the system but not under warranty. Disappointing as this has happened since ~ 5k miles. B&O Speakers in the front doors rattle when listening to Sirius talk radio, particularly male voices. Easy to duplicate but dealer claimed they were unable to do so. I'll revisit them in person to demonstrate the issue. 
Aug 2011

30000 mi
TSB related to camshaft - completed same time as scheduled maint. Start button lettering cracking - replacement part ordered. Manual transmission - shifting between 1st and 2nd gear is imprecise. Dealer spoke with Audi techs and confirmed repair will require replacing parts and ordered same. 
Jul 2014

55300 mi

US $330
Engine misfiring during boost 
Sep 2014

57000 mi

US $125
Failed PCV - replaced with updated part 06H103495AC. Confirmed after replacement that the gasket inside had torn. Common problem - under 1 hour DIY. 
Oct 2014

57500 mi

US $1000
Failed aftermarket front coilover - internal component failure required replacement from manufacturer. 
Jan 2015

60000 mi

US $1600
Clutch slipping. Could have driven for thousands of miles if I baby it. Replaced with ClutchMasters FX350 and retained flywheel which was in good shape. Cannot fault Audi for failure - my car makes far more power than stock. 
Audi A4 in California, United States
Mar 2009 - Jan 2010
May 2009

1000 mi
Seat back needed repair. The seat back wasn't closed properly, the cover wouldn't stay snapped on... It looked like it wasn't assembled properly from the factory. 
Audi A4 in California, United States
Mar 2011 - Jun 2018
Apr 2011

18000 mi
low speed shudder issue resolved by replacement of power steering hose. 
Aug 2012

33000 mi
control arms replaced to resolve high speed vibration issue 
May 2013

43000 mi
stage 1 oil consumption repair performed. Returned after 800 miles for consumption calculation. no further repair needed. two trips to the dealer. 
Aug 2014

61000 mi
check engine light went on. scan indicated intake manifold fault. intake manifold replaced. covered under the 7/70 california emissions warranty. 
May 2017

98000 mi
Rear main seal leak ... also pcv failed. estimated cost of rear main seal $1000-$1100. i authorized replacement of clutch and resurfacing of flywheel, as the addtl labor cost was nominal, and clutch was nearly 100k old. replaced failed pcv myself.  
Jan 2018

103000 mi

US $200
rat or other animal ate thru the wiring on a sensor ... car would not start ... wiring in a difficult position, so a mechanic's involvement was needed. 

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2009 Audi A4 4dr Sedan

turbocharged 143hp 2.0L I4 Diesel 6-speed manual FWD

Audi A4 in Great Britain
Mar 2010 - Dec 2013
Apr 2010

6000 mi
Whilst being driven, car electrics cut out, engine/power steering kept running, but airbag/ABS/Engine management light came on, rest of display went blank, indicators etc electrics failed. Audi: faulty alternator & gear position switch 

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2009 Audi A4 4dr Sedan

265-horsepower 3.2L V6 6-speed shiftable automatic AWD

Audi A4 in New Jersey, United States
- Jan 2009
Jan 2009

11000 mi
Reverse Error Jerky shifting in low gears (automatic) Vibration in wheel at high speeds 
Audi A4 in Tennessee, United States
Jan 2016 - Sep 2017
Jan 2017

US $1400
AC Compressor had totally died. Required complete replacement 
Feb 2017

110000 mi

US $6000
Transmission repairs. Control arm replacement, battery replaced. Several other parts replaced that were leaking oil. Oil change. Fan unit replaced. O2 sensor replaced.  
Jun 2017

114000 mi

US $800
Radiator was punctured somehow. Discovered because coolant was leaking. Replaced radiator, and everything was fine 
Audi A4 in British Columbia, Canada
Dec 2009 - Apr 2012
Feb 2011

14260 mi
Fuel door release servo was intermittent from convenience locking with keyless system; worked always with key fob unlock. Slight inconvenience. 
Apr 2011

15380 mi
One keyless door sensor would not lock the car. 
Audi A4 in Wisconsin, United States
Feb 2009 - Apr 2009
Apr 2009 Trim over nav screen warped/ misaligned. It looked ridiculous. They jammed some black felt tape above the trim which was totally visible when seated. I don't know how the factory didn't catch a badly warped trim piece. 4" area on front fender where foreign material was under the clear coat. They would have repainted but it should not have been delivered that way. Terrible wheel shudder between 55-65 MPH. Steering wheel literally shook in your hands. Tried to balance tires and did nothing. Consulting with Audi on issue. 
Audi A4 in Singapore
Jul 2008 - Mar 2010
Mar 2009

4340 mi
Right rear door could not be opened from the outside. Suspected damaged from my daughter.  Ordered part installed. Problem solved 
Audi A4 in Manitoba, Canada
Oct 2009 - Jul 2017
Mar 2011

14880 mi
Air bag sensor is on. faulty switch in passenger seat belt clasp 
May 2013

34720 mi

C $1800
Replaced leaking fuel injectors and spark plugs. Replaced leaking coolant line. 
May 2014

39560 mi
Warranty paint repairs 
Jul 2015

47220 mi

C $550
Repaired paint chipping from front wheel wells caused from kick-up of material by front tires. Both fenders were repainted and 3M plastic film installed over problem area 
Oct 2015

47840 mi

C $250
Warning indicator lights randomly turning on 
Audi A4 in New Jersey, United States
May 2009 - Dec 2011
Sep 2009

6000 mi
Steering wheel vibrates at highway speed, starts at 65-75mph and disappears or smoothens at 80mph and above. Update: I've talked to Audi about this problem and they have told me that they are redesigning a new power steering hose, available Jan 2010. 
Feb 2010

15300 mi
Control arms were replaced per TSB of high speed steering wheel shimmy, also, Power steering hose replaced per TSB of low speed steering wheel shimmy. 
Nov 2010

25300 mi

US $170
Parking brake malfunction light on. Replaced parking brake module by dealer, part of original warranty. 
Audi A4 in Louisiana, United States
Oct 2008 - Aug 2013
Nov 2009

15700 mi
Panel on dash by speedometer was coming off. New piece ordered. Defects in paint. Will address when car next in the shop to replace part ordered. Replaced dash trim previously ordered. 
Audi A4 in British Columbia, Canada
Jul 2010 - Sep 2010
Aug 2010

20460 mi
Complete failure of battery, transmission shifting issues, navigation systems freezing. None were solved. In fact, a software update was performed that caused some significant cold engine idle issues when first started. 
Sep 2010

20460 mi
Car sold partly because battery kept totally discharging after three days. 
Audi A4 in Maryland, United States
Jun 2011 - Oct 2021
Jun 2012

37000 mi
Sunroof made loud booming noise between 30-50 mph. Dealer replaced sunroof deflector under warranty and fixed problem. 
Dec 2012

47000 mi
passenger seat power adjustment was not working. Dealer replaced power seat motor under warranty. 
Jun 2013

54000 mi

US $600
Leaky transmission oil pan gasket (?) - mechanic said transmission oil was leaking. 
Oct 2015

90700 mi
Leaking oil after an oil change; oil drain plug is stripped and slight crack on oil pan. Mechanic replaced oil drain plug and sealed the oil pan. 
May 2017

121000 mi

US $400
Replaced rear brakes and rotors 
Oct 2017

125000 mi

US $900
Airbag light on dash came on and cruise control stopped working. Repair shop said that the airbag control module was not working and needed to be replaced. Airbag control module was replaced and system was reset; everything working well now. 
Mar 2018

133000 mi

US $1400
front end suspension "creaked" when going over bumps in the road. Mechanic recommended suspension work and replaced upper and lower control arms on both left and right sides. 
Jul 2018

139000 mi

US $250
replace right LED light; headlight failed indicator kept going off 
Audi A4 in Massachusetts, United States
Jul 2010 - Jun 2011
Aug 2010

26000 mi
replaced with new power steering hoses to eliminate low speed shudder on steering wheel 
Audi A4 in Wisconsin, United States
Sep 2010 - Jan 2015
Jun 2011

22000 mi
Driver's door window control for driver's door window would not work for the full roll down feature and became very hard to press. Switch replacement fixed it. 
Audi A4 in Alberta, Canada
Jun 2011 - Oct 2014
Oct 2014

97340 mi

C $4000
Fuel injectors plugged. 7 hours of Audi labour + parts = CDN$3300! 

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2009 Audi A4 2dr Convertible

turbocharged 200hp 2.0L I4 7-speed shiftable CVT FWD

Audi A4 in Texas, United States
Jun 2015 - Jul 2016
Jul 2016

101000 mi

US $3700
Car had.a rough idle and had to replace head gasket. 

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2009 Audi A4 2dr Convertible

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

Audi A4 in California, United States
Dec 2011 - Jun 2017
Mar 2017

71000 mi

US $1100
Convertible top under plastic panel cable broke. Had to replace entire system. 
Audi A4 in Florida, United States
Mar 2011 - Nov 2017
Nov 2013

26100 mi

US $252
Convertible top motor replaced 

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2009 Audi A4 2dr Convertible

255-horsepower 3.1L V6 6-speed shiftable automatic AWD

Audi A4 in Pennsylvania, United States
Nov 2009 - Dec 2017
Dec 2010

30000 mi
Check engine light came on. Dealer updated software and reset engine light. Light came on again. 
Mar 2011

36000 mi
Check engine light came on. Cleaned fuel injectors and reset indicator. 
Jul 2011

48000 mi

US $650
1. problem with tires after 16,000 miles - loud noise and vibration. Car had new tires and aligment in January. Original dealer would not help. 2. NAV DVD would not eject - Original dealer would not help. Had to take car to new dealer 
Jul 2012

78000 mi
Convertible - Rear window separating from fabric. Open to rain. Not covered by warranty. Estimate up to $5,000 to replace roof. Audi replaced roof under warranty. 
Aug 2012

78200 mi

US $745
Cruise control stopped working. Replaced cruise switch. 
Sep 2012

79000 mi
Cruise control stopped working 1 week after switch was replaced. Called dealer and they will charge for second repair even though they repaired 1 week prior for $500. Decided not to fix at this time did not want to spend more $ 
Jan 2013

64200 mi

US $1300
Installed switch and control unit for cruise control Replaced pump and motor for convertible top. Top would not go up. 
Nov 2013

89000 mi

US $209
Windshield washer pump replaced Windshield washer pump replaced 
May 2014

94500 mi

US $874
Replace "soft boot" in trunk for convertible top. Cable broke and gear stripped, convertible would not go down. Replace "soft boot" in trunk for convertible top. Cable broke and gear stripped, convertible would not go down. 
Sep 2014

99000 mi

US $800
New rotors, pads and calipers 
Oct 2016

129300 mi

US $3100
motor mounts - replaced Insulation/coating for wires to headlights "rotting". had to replace front headlight harnesses Rear View Windshield mirror, mount broke 
Jan 2017

131000 mi

US $2109
Rear shocks, struts, front bearings Valve cover gaskets 
Jun 2017

136000 mi

US $100
Replaced Broken latch on glovebox 

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2009 Audi A4 / S4

turbocharged 4-cylinder diesel manual 2WD

Audi A4 in Great Britain
Nov 2008 - Jun 2011
Jan 2009

2000 mi
Advance key option allows the car to be locked and unlocked keylessly by sensors in the door handles. A sensor in one handle showed up as faulty, causing an intermittent problem whereby the sensors do not work correctly. Ordered part. Part installed, but problem quickly returned. Made another appointment to repeat diagnosis. 
Feb 2009

2000 mi
Overall, 2 faulty door sensors causing problems with the advanced keyless entry system which were diagnosed on two separate visits. Now everything seems to be working correctly. 
Jun 2009

5000 mi
Rattle/squeak from somewhere around the drivers console near the off side. Certain songs cause a rattle/vibration from the near side front door that is not heard on off side door - Maybe speaker or just bad fitting? Don't want to hear vibration from one door when paying extra for B&O sound system! 
Jul 2009

6000 mi
After first visit, (rattle) problem still existed so took back. Problem still exists hence unsuccessful so will be making another visit shortly. 
Jan 2010 Car reporting low battery after only 1 year and even though car is used regularly. Garage said no problems with battery or alternator, told they had fully charged the battery. Two days after previous visit after being told battery had been fully charged and no problem could be found, car reporting low battery again. Took back to dealer who updated software and also ordered a replacement battery monitor/sensor. Battery monitor/sensor arrived and replaced. Advanced keyless entry system not working for the 3rd time (2 original door sensors had already been replaced). 1 of the remaining two original sensor was now faulty, sensor replaced. 

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2009 Audi A4 / S4

turbocharged 4-cylinder CVT 2WD

Audi A4 in South Africa
Apr 2009 - Sep 2011
Apr 2010

14880 mi
Collapsed engine mountings. New engine mountings fitted.  Drive chain noisy, also replaced under warranty. 
Jul 2010

16740 mi
Camshaft chain and additionals related to camshaft chain. Car sat for three weeks waiting for parts from Germany. 
Apr 2011

27280 mi
Gasket and valve tsb. New turbo ordered to be fitted, whistling. 
Aug 2011

31000 mi
Car using excessive oil (500ml/1000kms). Previous TSB hasnt resolved issue. Seem a new TSB is out so car has to be rebooked for work to be done. 

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2009 Audi A4 / S4

Engine not specified

Audi A4 in Ontario, Canada
Jul 2011 - Sep 2011
Aug 2011

37200 mi
Engine check light was on, and the engine was consuming about 1 liter per 1500 km, a turbo valve was replaced 
Sep 2011

37200 mi

C $59500
Engine check light was on, turbo system was faulty, part was not in inventory, so part had to be ordered. turbo was replaced in 5 days. 

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

2009 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 2009 Audi A4 / S4 problems occur, check out our car reliability stats.