2008 Audi A6 / S6 Audi A6 / S6 2008

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2008 Audi A6 / S6 repairs by problem area

Engine (36%)

Transmission and Drivetrain (2%)

Brakes and Traction Control (8%)

Suspension and Steering (10%)

Electrical and Air Conditioning (37%)

Paint, Rust, Leaks, Rattles, and Trim (3%)

Other (3%)

Chart based on 91 repairs.
See TSBs and recalls for the 2008 Audi A6 / S6.

2008 Audi A6 / S6 repair cost distribution

$2500+ (3%)

$1000 - $2499 (11%)

$500 - $999 (15%)

$100 - $499 (27%)

< $100 (45%)

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

Chart based on 75 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2008 Audi A6 / S6

Engine not specified

Audi A6 / S6 in Texas, United States
Feb 2016 - Mar 2016
Mar 2016

105000 mi

US $156
Replace fan blower motor. 
Audi A6 / S6 in Maryland, United States
Sep 2012 - Mar 2013
Mar 2013

73000 mi

US $85
valves needed flushing 

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2008 Audi A6 / S6 4dr Wagon

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

Audi A6 / S6 in Illinois, United States
Aug 2011 - Oct 2017
Nov 2011

24200 mi
Multi Media Interactive (MMI) not working. While in for service they performed 35k maintenance. 
Jan 2012

28300 mi
Hid xenon bulb out Rear wiper washer not working right, 
Aug 2016

85000 mi

US $120
Replaced cracked start button. 
Sep 2016

88000 mi

US $30
Hood lift shock support replaced 
Dec 2016

91000 mi

US $100
Replace liftgate shocks. 
Oct 2017

107000 mi

US $1150
Leaking brake pump 
Audi A6 / S6 in Arizona, United States
May 2015 - Aug 2015
Jul 2015

88000 mi

US $400
Had Bose amp repaired after wiper fluid got inside from leaky hose. 

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2008 Audi A6 / S6 4dr Sedan

435-horsepower 5.2L V10 6-speed shiftable automatic AWD

Audi A6 / S6 in New Hampshire, United States
Apr 2014 - Jun 2018
Jul 2017

107000 mi

US $300
Replaced Pads and Rotors 
Audi A6 / S6 in Virginia, United States
Apr 2013 - Sep 2014
Jun 2013

48000 mi

US $1700
CEL for misfire. Due to excessive carbon buildup, had to replace oil separator, all 10 fuel injectors, all spark plugs. After initial repair, starter failed adding another 20 hours of labor. Carbon cleaning on upper. CELs continue. 
Sep 2013

50000 mi

US $120
Right bank catalytic converter was bad. Oxygen sensor was also bad. Passenger side tail light bulb board was burnt out. 
Jan 2014

US $1200
Both EGR valves and associated equipment failed, making engine run rich with a heavy gasoline smell. Took into shop because CEL was on and the EGR valve tubes had started to melt and smoke. 
Apr 2014

58300 mi

US $1100
All 4 front upper control bushings were bad, and were replaced. Front passenger CV axle boot was torn and the whole axle boot was replaced. Left bank catalytic converter O2 sensor failed, and was replaced. 

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2008 Audi A6 / S6 4dr Sedan

350-horsepower 4.2L V8 6-speed shiftable automatic AWD

Audi A6 / S6 in Illinois, United States
Mar 2011 - Apr 2016
Dec 2011

41000 mi
Front passenger xenon headlight was replaced under warranty (was sporadically not coming on in Auto mode). The visit took a couple of hours because I had regular maintenance work also scheduled. 
Apr 2016

66000 mi
Needed new control arms and bushings 
Audi A6 / S6 in Pennsylvania, United States
Apr 2013 - Sep 2015
Dec 2013

95000 mi

US $395
Remove and replace main seal. 
Apr 2014

107200 mi

US $100
I had a consistent oil leak that turned out to be the rear seal. 
Jun 2014

111000 mi

US $2900
Replace intake manifold 
Audi A6 / S6 in Idaho, United States
May 2010 - Sep 2017
Jun 2014

87000 mi

US $180
Headlight replacement 
Aug 2016

116000 mi

US $850
Rattle in the right front suspension. Replaced a lower control arm. Sun roof spring mount failed. Had to repair with a factory kit for this problem 
Sep 2016

117000 mi

US $1200
Oil leak around the oil filter attachment point. Also, had to de-carbonize the intake manifold. 
Dec 2016

122000 mi

US $900
Adaptive headlight failed and had to be replaced. 
Feb 2017

126000 mi

US $600
Front brake pads and rotors replaced 

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2008 Audi A6 / S6 4dr Sedan

255-horsepower 3.1L V6 7-speed shiftable CVT FWD

Audi A6 / S6 in Pennsylvania, United States
Apr 2014 - Jun 2016
Apr 2014

55000 mi

US $700
wheel bearing 
Jun 2014

58000 mi

US $237
spurious electrical problems, replaced alternator and key fob battery. Driver door still refuses to unlock with key fob at times. 
Audi A6 / S6 in Missouri, United States
Oct 2010 - Jun 2011
Nov 2010

50000 mi
For the second time since purchasing the A6 new, the water pump failed. Dealer has admitted that Audi installed water pumps on A6's with incorrect housings. A day after picking car up after failed water pump replacement the malfunction light came on and the car would not run. Fuel thrust module failed. 

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2008 Audi A6 / S6 4dr Sedan

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

Audi A6 / S6 in Arizona, United States
Mar 2017 - Dec 2017
Jul 2017

125000 mi

US $1050
Air compressor died. They replaced it with a new one. 
Audi A6 / S6 in Maryland, United States
Oct 2011 - Nov 2011
Mar 2011

59670 mi

US $30
The left HID bulb would go on and off. I didnt know if it was the ballast or the bulb. The company replased the bulb for free. Also the mechanic said he would find out why my fans are runing all the time but its been almost a year now. 
Audi A6 / S6 in Massachusetts, United States
Jan 2014 - Feb 2016
Feb 2016

77000 mi
ECU fail. Replacement needed. $6,000 
Audi A6 / S6 in Wisconsin, United States
Apr 2013 - Oct 2013
May 2013

56500 mi

US $750
Rack and pinion system leaking power steering fluid, unable to repair and had to replace. Repair would have been almost $2,000 but we were able to find used part. My car was pulling way to the left, dealership said something was "froze" up and in order to perform an alignment they had to replace all of the tie rods. 
Audi A6 / S6 in Wisconsin, United States
Oct 2014 - Dec 2018
Jul 2017

102000 mi

US $30
Replaced a/c high pressure sensor. 
Audi A6 / S6 in Maryland, United States
Jan 2015 - Jun 2018
Jul 2015

67300 mi

US $240
Jerky shifting, loud whining noise, eventually devolving into limp mode and then wouldn't go into gear at all. Changed fluid and filter. 
Feb 2018

84031 mi

US $240
Front and rear brake pads and disks Clunking noise during tight turns. Replaced both front stabilizer bar links. 
Audi A6 / S6 in Massachusetts, United States
Feb 2012 - Dec 2012
Mar 2012

52000 mi

US $440
Right tail light replaced because of moisture infiltration and corrosion. 
Audi A6 / S6 in Pennsylvania, United States
Mar 2010 - Aug 2011
Oct 2010

8000 mi
Engine light came out. Dealer stated that "software needed to be upgraded". Diagnostics showed that cylinder 6 was "misfiring". 
Audi A6 / S6 in Rhode Island, United States
Mar 2010 - Jun 2017
Feb 2010

36000 mi

US $500
new front breaks and rotors 
Dec 2011

55000 mi
bulb out flashed on all blubs in rear driver side tail light assembly. Found corosion on the connectors in the assembly. Replaced the assmebly 
Jul 2012

64000 mi

US $350
passenger headlight was replaced 
Aug 2012

64200 mi
check engine light stayed on. piece that had to be removed to change the headlight was broken. 
Feb 2014

85800 mi

US $590
cylinder coil replaced 
Feb 2015

99000 mi

US $800
stereo stuck on Mute. Software was upgraded, Bose AMP was replaced but music only comes out on the Driver side 
Feb 2017

120000 mi

US $650
repair oil leak adaptive light system failed 
Audi A6 / S6 in Maine, United States
Mar 2010 - Mar 2012
Apr 2010

17000 mi
Malfunctioning front brake caliper Caliper replaced. 
Audi A6 / S6 in Georgia, United States
Mar 2009 - Jun 2018
Jan 2009

12089 mi
Engine malfunction (i.e., check engine) light came on. There was a Technical Bulletin (# 24N1) on the vehicle which indicated a computer software upgrade was needed. Dealer installed the software upgrade. This seemed to resolve the check engine light. 
Jul 2010

39000 mi
Air bag light on due to faulty sensor in seat belt clamp Head lamp bulb replaced 
Oct 2010

43000 mi
Air bag warning light came on. Problem was again diagnosed as a faulty sensor in the seat belt latch. Seat belt latch was replaced again to fix problem. 
Feb 2011

48000 mi
CEL on, because of common carbon build-up on intake valves issue. Dealer has cleaned heads previously. This time just software update, which likely just made sensors less sensitive. 
Mar 2011

49000 mi
Passenger air bag light on. Replaced seat belt holder. Third time for the airbag issue. They finally found that there was a bad wire in the harness connector. That seems to have resolved the problem.  
Apr 2015

92700 mi
Replaced rear left taillight assembly. The warning light came on while the car was a the shop for maintenance. The service advisor claimed the whole assembly had to be replaced. The advisor said the part may have shorted and burnt out. 
Sep 2015

99000 mi
Airbag light illuminated. Service technician reported that there is a intermittent communication failure between airbag sensor and air bag controller 
Nov 2015

100400 mi

US $550
Airbag light came on (Belt Force Sensor for Seat Occupied Recognition - code 02513). Indy Audi mechanic replaced seat belt at a cost of $445 for the belt and $105 for labor. Unfortunately, this did not fix the problem. Light came on again. 
Apr 2016

104300 mi

US $144
MIL light came on. Codes P2070 and P2006 were reported. Mechanic diagnosed problem as a leaking vacuum hose. Repair costs of $144 consisted of $132 for labor (diagnosis and repair) and $12 for the vacuum hose. 
Apr 2017

112000 mi

US $476
Replaced all four TPMS sensors after the tire pressure and TPMS warning lights were illuminated. My VAG-COMM tool showed that the batteries had failed or was extremely low in my TPMS sensors. Actually, thinking about it, I probably should have replaced the TPMS sensor in the spare tire as well. NOTE: Repair was originally done by Discount Tire with HUF universal TPMS sensors. This did not correct the problem. The TPMS warning light continued to be displayed after the installation of the new sensors. Subsequently, replaced the universal TPMS sensors with Audi brand sensors. This corrected the problem. The "universal TPMS sensors" do not seem to be compatible with the Audi A6. 
Jul 2017

113400 mi
Replacement of Takata passenger airbag 
Oct 2017

115500 mi

US $350
After having the 115K service performed by an independent Audi mechanic, the ESP, EPC, and CEL (blinking) lights became illuminated on the drive back home. I returned to the independent Audi repair shop. The owner of the Audi shop (an Audi expert) checked the car out. He did not find any reason for the ESP, EPC, and CEL fault. However, he suggested that the ignition coils be replaced. The ignition coils were replaced at cost with no labor charge as a courtesy for the inconvenience of having to return to the shop After having the ignition coils replaced by the independent Audi mechanic, the EPC, EPS, and CEL (blinking) lights came back on the way back home. The vehicle was then taken to the Audi deal for analysis of the codes. The dealer kept the vehicle for several days, but could not any reason for the codes. I was charged $300. This was essentially, a $100 charge to troubleshoot each code separately. Although I explained that the warning lights all came on at the same time, the service adviser indicated that they needed to troubleshoot each code separately. Later, the service adviser claimed that the time that the mechanic spent trying to diagnose the problem was easily double the amount that I paid. The car was returned to me without the mechanic at the dealer finding any problem. The codes were reset by the mechanic and did not occur again while the car was at the dealership. 
Nov 2017

115474 mi

US $2540
EPC, ESP, and CEL (blinking) lights became illuminated again. Car was towed to the independent Audi repair shop. Audi mechanic diagnosed the problem as the infamous Audi carbon build-up issue in the 3.0 V6 TSI engine. The left and right intake manifolds were replaced and a carbon cleanup was performed. Water pump was replaced at this time as a precaution. 
Mar 2018

117701 mi

US $1883
Replaced leaking valve cover gaskets Replaced front sway bar links Replaced coolant hose Replaced vacuum pump Replaced power steering hose 
Audi A6 / S6 in New Jersey, United States
Jul 2010 - Jan 2011
Dec 2010

41000 mi
MMI computer replaced 
Audi A6 / S6 in Illinois, United States
Nov 2010 - Jan 2013
May 2011

45000 mi
Fuel gauge stuck. Repaired with software update and wiring TSB 
Aug 2011

52000 mi

US $20
Power seat controls came loose. Dealer replaced a screw. 
Sep 2012

82000 mi

US $80
Blower Fan 
Audi A6 / S6 in Alabama, United States
Mar 2010 - May 2018
May 2010

25000 mi
Rough idle on cold starts. Eng check light and off many times. 
Sep 2011

45000 mi
Idler pulley replaced. Water pump replaced. 
May 2016

82000 mi
AC inop. Charged system (or so they claim) but compressor clutch would not engage. I figured a faulty pressure switch but he claims there were no fault codes. I went and retrieved my car and made no payment. 
Jun 2016

83000 mi

US $400
Removed, replaced faulty ac pressure switch and charged system. 
Audi A6 / S6 in Missouri, United States
Sep 2011 - Jun 2013
Nov 2011

35000 mi
Engine was performing sporadically, then engine light began flashing. I took it in and Dealer identified it as misfire and carbon covered pistons. They cleaned fuel system and pistons. Unfortunately, I was back within just over a week. Updated and recalibrated engine software, cleaned pistons, added fuel cleaner. Has not been a problem since. 
Oct 2012

52700 mi
Check oil level light went off last week. Had it checked and there were no issues. 
Jun 2013

63000 mi

US $150
Right headlight needed replaced. 
Audi A6 / S6 in Minnesota, United States
Mar 2011 - Aug 2012
Dec 2011

89000 mi

US $35
Connector to rear light corroded. Cleaned and returned. 
Aug 2012

91000 mi

US $600
Replaced left timing cover seal to repair oil leak 
Audi A6 / S6 in California, United States
Nov 2010 - Dec 2011
Feb 2011

41100 mi
Misfires detected, was fixed with a software update found in a TSB by dealer. 
Audi A6 / S6 in New York, United States
Dec 2011 - Jul 2012
Feb 2012

40400 mi
Center drivers information display would turn on and off after startup. Would only stay on consistently after 10-15 minutes of driving. 

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2008 Audi A6 / S6 Repair Histories

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