Audi A6 / S6 / RS6 Audi A6 / S6 / RS6

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Audi A6 / S6 / RS6 repairs by problem area

Engine (41%)

Transmission and Drivetrain (11%)

Brakes and Traction Control (5%)

Suspension and Steering (13%)

Electrical and Air Conditioning (21%)

Paint, Rust, Leaks, Rattles, and Trim (5%)

Other (5%)

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Chart based on 2589 repairs.
See TSBs and recalls for the Audi A6 / S6 / RS6.

Audi A6 / S6 / RS6 electrical repair cost distribution

$2500+ (2%)

$1000 - $2499 (11%)

$500 - $999 (14%)

$100 - $499 (31%)

< $100 (43%)

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Chart based on 399 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2021 Audi A6 / S6 / RS6 4dr Sedan

twincharged 444hp 2.9L V6 Hybrid 8-speed shiftable automatic AWD

6000 mi Drive assistance was disabling itself in clear conditions, central locking malfunction 
11000 mi Driver assistance turning off in clear weather 

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2019 Audi A6 4dr Sedan

turbocharged 335hp 3.0L V6 Hybrid 7-speed automated manual AWD

30000 mi Alternator crapped out. Car died on road. Needed to be towed to dealer. 

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2017 Audi A6 / S6 4dr Sedan

turbocharged 272hp 3.0L V6 Diesel 7-speed automated manual AWD

88040 mi

$600
Adaptive cruise control reports sensor "no vision" repeateadly. Initial diagnostic didn't show anything. Waiting for spare cable for test swap. Bad feelings about this. 

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2016 Audi A6 / S6 4dr Sedan

turbocharged 450hp 4.0L V8 7-speed automated manual AWD

12000 mi Drivers side mirror will not retract in cold weather. Took to dealer they put it in warm shop for 3hrs before diagnosing and could not reproduce. Weather has warmed enough that the mirror works again 
Front parking sensor fogged over - electrical fault. 
6000 mi Initially noticed parking cameras not displaying on MMI screen despite the distance sensors working (could hear beeping as approaching objects). Then, within a week, the battery was completely dead. Could not jump car from engine bay battery posts; car had to be jumped from battery under spare tire. 
5000 mi Satelite antenna replace for GPS 

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2016 Audi A6 / S6 4dr Sedan

turbocharged 252hp 2.0L I4 8-speed shiftable automatic AWD

57000 mi

US $85
Starter failed while out driving. Wife had to drive almost an hour to pick me up. Starter was back ordered in Germany. 
13000 mi Air bag light was on due to broken driver's seat belt buckle not working. It was replaced under warranty. 

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2016 Audi A6 / S6 4dr Sedan

supercharged 333hp 3.0L V6 8-speed shiftable automatic AWD

MMI System was basically inoperative unless I hard rebooted the system 1-2 times every time I drove the car. 
5000 mi The cooled seats seemed inoperative 
8000 mi MMI had to be replaced 
1900 mi Water leak from A/C soaked carpet and computer modules on floor. Required replacement of carpet, cleaning of mold, and exchange of computer modules. 
61000 mi

US $1800
MMI Unit replaced 

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2015 Audi A6 / S6 4dr Wagon

turbocharged 190hp 2.0L I4 Diesel 7-speed automated manual FWD

83700 mi Matrix headlamp was malfunctioning, auto dim did not work 

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2015 Audi A6 / S6 4dr Sedan

turbocharged 420hp 4.0L V8 7-speed automated manual AWD

11780 mi Sensor for external thermometer needs replacement. LED light in door handle not working. Buzzing from centre dash speaker. 
12400 mi Buzzing front centre speaker. Not fixed. They replaced the speaker but it appears to be caused the vibration from lower notes when playing music. 
15500 mi

C $359
Centre speaker/HVAC grill on centre of dash was vibrating 

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2015 Audi A6 / S6 4dr Sedan

turbocharged 240hp 3.0L V6 Diesel 8-speed shiftable automatic AWD

Air bag sensor failure 
5600 mi Electronic systems hard drive failure. System software upgrade was attempted but was unsuccessful. Hard drive replaced. 
33480 mi

C $85
The ACC (automatic cruise control), lane departure, cameras, etc., intermittently not working. Problem located to driver's door open/close switch. Replaced. Problem solved. 
52000 mi Drivers side mirror motor was replaced because the mirror could no longer be adjusted horizontally. 
120000 mi

US $1400
Replaced MMI screen/monitor 
123596 mi

US $1136
Replaced Rear Right Light Assembly 

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2015 Audi A6 / S6 4dr Sedan

turbocharged 220hp 2.0L I4 8-speed shiftable automatic AWD

29000 mi Driver's side folding mirror motor failer 
54000 mi

US $200
Battery replacement 

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2014 Audi A6 / S6 4dr Sedan

turbocharged 420hp 4.0L V8 7-speed automated manual AWD

33480 mi

﷼2000
MMI freezes on source option no cd working /no entertainment cable function. The only thing working is the radio . Checked with Audi warranty didn't cover and was required to change the whole MMI front unite . 
26000 mi Right-side surround-view camera (integral to mirror) replaced due to failure 

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2014 Audi A6 / S6 4dr Sedan

turbocharged 240hp 3.0L V6 Diesel 8-speed shiftable automatic AWD

63000 mi tire pressure monitoring system 
66000 mi ACC light illuminated 
45000 mi Back up camera quit working 
49300 mi Air circulation fan in the dash board started making a very slight scraping noise. It wasn't very loud but the A6 is so quiet on the highway that I could hear the noise and after a while it became annoying. Audi replaced it at no charge. 

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2014 Audi A6 / S6 4dr Sedan

turbocharged 220hp 2.0L I4 8-speed shiftable automatic AWD

41000 mi Repaired malfunctioning backup camera. Had water in it. 

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2014 Audi A6 / S6 4dr Sedan

turbocharged 180hp 2.0L I4 8-speed shiftable CVT FWD

17360 mi

$150
Pressure Switch sensor replacement part # 4HO 959 126B 

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2014 Audi A6 / S6 4dr Sedan

turbocharged 177hp 2.0L I4 Diesel 8-speed shiftable CVT FWD

16120 mi

$400
Car would not start due to low battery charge. Needed to be jump started. Same issue recurred 2 days later when it was jump started again and once again car does not start. 
16740 mi

$65300
Battery replaced as it had gone dead 

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2014 Audi A6 / S6 4dr Sedan

supercharged 310hp 3.0L V6 8-speed shiftable automatic AWD

16000 mi Distant train whistle sound coming from vent when A/C was on. 
17100 mi fan makes a intermittent whining noise when A/C is on. 
5000 mi Pressure switch faulty and replaced under warranty 
32000 mi

US $523
an error light came on stating that the lane changing system was in-operable. The dealer said that the sensors can get out of alignment. about 4 hours of labor to fix. 
26000 mi Intermittent cruse control issue 
66000 mi

US $200
Main headlight Burnt out 
69000 mi

US $350
headlight light bulb 

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2013 Audi A6 / S6

Engine not specified

15000 mi MMI update to fix sound and functionality issues. 
41000 mi Vent drain 

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2013 Audi A6 / S6 4dr Wagon

204-horsepower 2.8L V6 7-speed automated manual AWD

49600 mi Hard drive failure prevented Satnav and the 'media' link from booting up. Radio and car selections worked fine. Replaced free of charge under a third party warranty 

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2013 Audi A6 / S6 4dr Sedan

turbocharged 420hp 4.0L V8 7-speed automated manual AWD

24000 mi poor radio quality 
29000 mi a/c quit working suddenly. The failure was a high pressure switch, which was replaced fixing the problem 
28000 mi Intermittent image failure from backup camera. 
58000 mi Adaptive cruise control would deactivate after a few minutes of driving. Dealer advised that a wire was loose, so there was no charge for the repair. 

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2013 Audi A6 / S6 4dr Sedan

turbocharged 211hp 2.0L I4 8-speed shiftable automatic AWD

16000 mi Hood light stayed on. Door locks were out of sync. 
5700 mi Heat worked intermittently. Sometimes would not come on for very long time (over 20 minutes). 
4540 mi Not enough bass in Bose system. Found TSB to flash the amp. 
Horn activated on its own while driving 

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2013 Audi A6 / S6 4dr Sedan

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

79471 mi

$200
Windshield Washer Motor 

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2013 Audi A6 / S6 4dr Sedan

supercharged 310hp 3.0L V6 8-speed shiftable automatic AWD

18300 mi Pressure switch 
4200 mi Main MMI knob next to shifter would scroll but not respond when pushed to make a selection. MMI was replaced at no charge. 
24800 mi Homelink system failed 
30000 mi Motor for driver side folding mirror failed. Dealer replaced motor. 
2000 mi parking sensor failure 
18000 mi GPS antenna not working around view cameras showed skewed images adaptive cruise control worked sporadically, would turn off at times. Braking guard would do same. 
25000 mi Sporadic failure of blind spot assist (it would turn off by itself) 
49500 mi battery was discovered to be faulty, replaced under warranty durring inspection and service. 
56000 mi AC was not cold. Unknown part replaced 
13500 mi Change behavior after car has been driven and then stopped with a door being opened. Action switched from car full stop and automatically applying brake TO car remains running and brake needs to be manually applied when desired. 
64000 mi

US $410
MMI kept rebooting at random times. 
25000 mi Bose sound system needed repair, sound was substandard quality. 
61000 mi Replaced SIM Card firmware due to TMobile Hardware change 
21500 mi About 20% of the time Gas Cap cover will not open. Replaced Actuator. 
22000 mi Updated Mmi to resolve poor sound quality 
39300 mi Had a bad motor on passenger side  also heated steering wheel won't get warm 
29300 mi LED's in drivers side mirror for turn signal stopped working. A red indicator light on dash signified a problem. 
10300 mi Bluetooth MMI issues, update performed. Still having issues. 
6000 mi Continued issues with NAV and bluetooth. GPS wouldn't lock. Had bad MMI system. Replaced with 2014 MY MMI system. 
4960 mi Heads up Display (HUD) stops working when dashboard is hot from car being parked in sun. Starts working again when car cools down. At same time automatic headlights turn on even though daytime out. Headlights also turn off when dasj cools. 
5960 mi Return trip to fix heads up display and auto headlights not working when car parked with dash in the sun. Start working after car runs for around 15 min and AC cools. Dealer response is that behavior is normal. Third trip regarding HUD and auto headlights. Dealer investigating cause further. No resolution, but promised has been escalated from Audi Tech to Product Support. 
6820 mi Dealer wanted car brought in when HUD and auto headlights were actiing up to take measurements. Replicated problem, took measurements, but still have no resolution. 
7720 mi Ordered and installed a light and moisture sensor, which fixed the problem with the HUD and automatic headlights. 
13500 mi MMI system (Nav, Radio, Telephone) crashes when ever search for a contact when using iPhone 5s. After around 30 seconds restarts again. Nav / Audio / Phone system received firm ware upgrade to address problem with Bluetooth phone address book when using Iphone 5S 
23560 mi LED strip (turn signal) in the driver's side mirror failed. 
79050 mi

C $400
Gas filler door would not unlock. Required replacement of the filler door lock actuator, and also replacement of the filler neck skirt. 

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2012 Audi A6

Engine not specified

53500 mi backup camera wont engage sometime 

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2012 Audi A6 4dr Wagon

turbocharged 204hp 3.0L V6 Diesel 7-speed automated manual AWD

17980 mi Had to exchange an electrical relay component that prevented the central locking from opening the fuel tank lid. Could not refuel. 

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2012 Audi A6 4dr Sedan

turbocharged 245hp 3.0L V6 Diesel 7-speed automated manual AWD

11000 mi Both speakers replaced and door rattles fixed 
16000 mi Xeon n/s headlamp unit replaced 
27000 mi Rear sensors did not work. one sensor point defective causing system to fail 

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2012 Audi A6 4dr Sedan

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

32000 mi AC not blowing cold at all. Malfunction of AC pressure switch G395. TSB# 2020124/12. Replaced with revised part 4H0-959-126-A 
91153 mi

US $10
Recharge A/C with R-134a and PAG 46 
79200 mi

US $345
Mmi and nav update and upgrade pcv. Programmed a key 
36300 mi AC was blowing hot air; AC pressure/temperature switch replaced 

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2012 Audi A6 4dr Sedan

turbocharged 204hp 3.0L V6 Diesel 7-speed automated manual AWD

25420 mi Can not set the Temperature, heating too much at the Winter, too much air blow 

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2012 Audi A6 4dr Sedan

supercharged 310hp 3.0L V6 8-speed shiftable automatic AWD

26000 mi The passenger airbag off light was on even with a passenger in the seat. The whole seat was replaced. Replaced front passenger seat pod air bag light 
41500 mi replace right rear speaker 
16320 mi Intermittent folding side mirror failure (would not fold/unfold). Short in control module was diagnosed after 2 trips. Module replaced. 
50000 mi Nav frequently failing and resetting. 
15000 mi Update of computer plus 15K scheduled maintenance and installation of winter wheel/tire package. 
26000 mi Driver side door lock sensors inoperative. Dealer suggested it might be due to car wash. Working on pax side. Still not working on departure. In for routine 25K maintenance. I forgot to tell dealer about inop right side mirror retract. 
29000 mi Driver side mirror would not fold back HomeLink system offline. Garage door button non-functional. Turned out to be loose ground wire in A pillar. 
43700 mi Rt side mirror wouldn't retract to fold back position). Stuck in non-fully extended position. Couldn't adjust driver side view. Needed motor replacement. Not in stock, so took car home. Dealer picked up following week/repaired/returned. 
59000 mi

US $100
Audi MMI - Multi Media Interface. Unit had erratic operation/ Controls would lock up, retractable screen would go blank and/or close and open intermittently, phone would lose pairing. Affected radio, satellite radio, navigation, phone and jukebox. 
62750 mi Garage door link stopped functioning. Repair postponed. Will return in 2nd quarter. Discovered after reviewing service records that this problem resulted from improper repair 5 years ago on nearby wiring. 
64000 mi

US $100
Garage door opener failed. Dealer found bad splice in wiring from PREVIOUS dealer repair from several years ago. Said it was "out of warranty" even though they had done the bad splice. I used my Audi extended warranty, which covered all but the $100 deductible on this $650 repair. 
98000 mi

US $500
Cranking was substandard in cold temperatures. Battery 5 years old. Tested by dealer and replaced with Audi OEM. Not a job the typical owner can do. 
9920 mi Sound system went off for the 2nd time 
25420 mi The passenger side mirror folded and would not unfold. 
17000 mi Replaced motor on the passenger side mirror for fold-in functionality. 
6000 mi Tire Pressure Monitoring System: I had a flat while driving and the TPMS did not make an alert. 
20000 mi The electric steering column was making noise as it descended. The dealer wound up replacing the entire column as just lubing it did not get rid of the noise. 
21000 mi The adaptive cruise control was reacting/braking for cars that had moved into the left turn lane ahead. 
33000 mi With A/C on - blowing hot air. High pressure sensor failed dealer replaced. 
14000 mi Audi Lane Change Assist would sporadically turn off due to an intermittent short in the light indicator located in the driver side side mirror assy. 
22800 mi Vertical motor for tilt function of steering failed. Steering column replaced. 
76000 mi

US $1300
When idling the ac would not stay cold, they found a fuse and the AC fan needed replaced 
86000 mi a recall item failed that was giving me a couple warning lights intermittenly, one was that my side detection sensors were not working properly. I cannot remember the other warning light, but the dealership determined it was a airbag harness that was recalled and replaced a while ago had failed so they covered replacing that 
62000 mi

US $177
A/C recharge 
57000 mi [A/C] DID NOT REPAIR IT AS NOW. 
81000 mi

US $350
A/C Pressure sensor failure. Replaced, system evacuated, recharged and leak tested. Repair listed for ~$500, had $150 coupon which was nice. 
11000 mi

US $2500
Radar 
52300 mi had fuel door actuator replaced 
61000 mi I had the motor replaced for the info screen that sometimes hung up. 
28000 mi Replaced battery--in service for 4 years 
32000 mi Issues with blind spot sensors shutting down in heavy traffic, misc. MMI freezes, etc. Dealer updated MMI software. 
76000 mi

US $508
Headlight control module showed error code, was replaced. Took several days to diagnose and get part. 
88000 mi Passenger front seat heat not reconnected properly after earlier work. 
36000 mi The F module failed and caused problems with Nav, Audio 
37000 mi The iPod was not loading into the MMI. Software update. Repair complete. 
57000 mi One of the parking sensors failed 
15500 mi MMI connection problems with telephones. 
16700 mi MMI Screen motor/carrier caused screen to hang or not come out at all. 

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2011 Audi A6 / S6 4dr Wagon

supercharged 300hp 3.0L V6 6-speed shiftable automatic AWD

47000 mi

US $650
power seat module not resetting, seat would not move. 

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2011 Audi A6 / S6 4dr Sedan

supercharged 300hp 3.0L V6 6-speed shiftable automatic AWD

77000 mi Back up camera would not come on when the car goes in reverse 
79000 mi

US $900
DS headlight cluster failure PAx front airbag replaced 

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2010 Audi A6 / S6 4dr Wagon

supercharged 300hp 3.0L V6 6-speed shiftable automatic AWD

98000 mi Passenger airbag recall 
98000 mi

US $76
Replaced third brake light 

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2010 Audi A6 / S6 4dr Sedan

supercharged 300hp 3.0L V6 6-speed shiftable automatic AWD

50500 mi

US $500
Replaced battery 
80000 mi

US $600
The headlights are expensive on this. $350 alone for the bulb. It was the passenger side light so the entire air intake manifold has to disassembled to get to the bulb housing. While they were there they changed the air filter as well. 
85000 mi

US $200
Replace battery 

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2010 Audi A6 / S6 4dr Sedan

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

43000 mi Tweeter in driver's door replaced due to scratchy sound/cutting in and out at low volume. Replacement tweeter experiencing same issue, so I believe the cause is loose wiring or an issue with the head unit. Update: resolved itself a few weeks later. 
64000 mi

US $750
Driver's door would intermittently not lock/unlock with the remote. Had to use the key to lock/unlock. Dealer replaced lock assembly. 

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2010 Audi A6 / S6 4dr Sedan

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

115000 mi

US $140
Replace AC Blower motor 

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2009 Audi A6 / S6 4dr Sedan

turbocharged 170hp 2.0L I4 7-speed shiftable CVT FWD

68200 mi

¤500
Hanged ac compressor 

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2009 Audi A6 / S6 4dr Sedan

supercharged 300hp 3.0L V6 6-speed shiftable automatic AWD

60000 mi

US $500
Pressure sensor leaking. Replaced sensor. 

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2008 Audi A6 / S6

Engine not specified

105000 mi

US $156
Replace fan blower motor. 

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2008 Audi A6 / S6 4dr Wagon

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

88000 mi

US $400
Had Bose amp repaired after wiper fluid got inside from leaky hose. 
24200 mi Multi Media Interactive (MMI) not working. While in for service they performed 35k maintenance. 
28300 mi Hid xenon bulb out Rear wiper washer not working right, 

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2008 Audi A6 / S6 4dr Sedan

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

50000 mi

US $120
Passenger side tail light bulb board was burnt out. 

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2008 Audi A6 / S6 4dr Sedan

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

87000 mi

US $180
Headlight replacement 
122000 mi

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

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2008 Audi A6 / S6 4dr Sedan

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

58000 mi

US $237
spurious electrical problems, replaced alternator and key fob battery. Driver door still refuses to unlock with key fob at times. 

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2008 Audi A6 / S6 4dr Sedan

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

102000 mi

US $30
Replaced a/c high pressure sensor. 
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 
64000 mi

US $350
passenger headlight was replaced 
99000 mi

US $800
stereo stuck on Mute. Software was upgraded, Bose AMP was replaced but music only comes out on the Driver side 
120000 mi

US $650
adaptive light system failed 
39000 mi Air bag light on due to faulty sensor in seat belt clamp Head lamp bulb replaced 
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. 
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.  
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. 
99000 mi Airbag light illuminated. Service technician reported that there is a intermittent communication failure between airbag sensor and air bag controller 
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. 
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. 
113400 mi Replacement of Takata passenger airbag 
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. 
83000 mi

US $400
Removed, replaced faulty ac pressure switch and charged system. 
45000 mi Fuel gauge stuck. Repaired with software update and wiring TSB 
82000 mi

US $80
Blower Fan 
41000 mi MMI computer replaced 
40400 mi Center drivers information display would turn on and off after startup. Would only stay on consistently after 10-15 minutes of driving. 
89000 mi

US $35
Connector to rear light corroded. Cleaned and returned. 
63000 mi

US $150
Right headlight needed replaced. 
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. 
125000 mi

US $1050
Air compressor died. They replaced it with a new one. 

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2007 Audi A6 / S6

Engine not specified

24000 mi Headlight malfunction - fixed under warranty 

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2007 Audi A6 / S6 4dr Wagon

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

78000 mi

US $600
Adaptive Cruise Control stopped working 
85000 mi The Adaptive Cruise on the Audi finally fixed itself when my indy Audi mechanic unplugged the battery, cleared the codes and let it reset itself. 
95000 mi Airbag light on 
98000 mi Washer fluid leaked on the amplifier, shorting it out. Amplifier was replaced. 
50000 mi Center console display takes long time to turn on. Haven't fixed it yet as I've heard it's an expensive work (2k). 
95000 mi

US $300
battery was overdue for replacement. 
39500 mi Headlight bulb and ballast replaced. Front passenger door interior LED strip replaced. 
68000 mi

US $80
Electric tilt wheel was not functioning. 
60700 mi

US $1500
Automatic trunk opener failed, $1200 for replacement and installation. 
146000 mi

US $339
Center brake light 

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2007 Audi A6 / S6 4dr Sedan

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

85400 mi

US $1700
AC condenser cracked due to poor installation of aftermarket remote radar detector (K40) by previous owner. Really not a fault of the car. 
35000 mi Faulty driver-side window switch (would not reliably raise front passenger window) 
39000 mi Ignitor in rear center seat set failed, causing Airbag System fault. 
40000 mi Failing connector on wire harness 
45000 mi

US $100
Embedded Controller in right rear light cluster went bad, erroneously reporting that all bulbs in the cluster had failed. Rear cluster was replaced. 
66400 mi

US $100
Trip Computer went out, center dash console had to be replaced 
78000 mi

US $249
License plate lights out and corrosion on contacts. Replaced bulbs and bulb holders 
81000 mi

US $60
Battery replacement - 1.5 hours of labor for "reprogramming" 
43700 mi Fuel gauge worked sporadically 
27900 mi Tilt/Telescoping steering wheel not working, software was updated and the problem was solved. 
94000 mi

US $212
Replace Battery 

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2007 Audi A6 / S6 4dr Sedan

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

49000 mi Bluetooth module malfunctioning and repaired. Bluetooth module malfunctioning and repaired.  
50000 mi Bluetooth reset (apparently it stops working if the battery gets too low). 
22000 mi audio dysfunction, apparently due in part to i-phone interface 

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2007 Audi A6 / S6 4dr Sedan

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

62000 mi

C $211
Left hand light error, LHS marker light had a intermittent failure. 
75700 mi

US $300
Bluetooth module failed. Chose not to fix due to cost. Dealer bypassed bluetooth unit so that radio would work. 
110000 mi

US $2000
Motor for adaptive lighting failed. Must replace entire light housing 
28200 mi Starter motor. Turning the key resulted in hearing the whirr of the starter motor, but not the solenoid that kicks the starter up to the flywheel. Wait a while . . . same result. Wait a while . . . same result. Wait a while, then it would work. 
58000 mi

US $1400
Adaptive headlight failure. 
71300 mi LH headlamp assy AFL failed - dipped light warning 
72200 mi replaced AC cabin fan motor assy RH Xenon bulb busted - busted bulb warning illuminated 
44000 mi blue tooth phone module 
44000 mi replaced Satellite radio module replaced satellite radio module 
7300 mi Strange noise from A/C blower 

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2006 Audi A6

Engine not specified

67000 mi

US $400
Replaced heater valve. 
37000 mi AC blowing warm air. Replaced AC Pump valve. 

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2006 Audi A6 4dr Wagon

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

84500 mi

US $35
Replaced brake light switch myself. Brake lights were staying on with the key out. 
127720 mi

C $330
Complete socket units for day time running lights had to be replaced. Bulb had overheated and melted the receptacle. 
42000 mi Rear window wiper would not always turn OFF. Several failures. Dealer could not replicate, but may have inadvertently repaired problem by going into one of the computers. 
99500 mi

C $500
Had to replace the AC compresor. 
74000 mi AM/FM Bose amplifer failure New Bose amplifier for AM/FM radio unnstalled 
94000 mi

US $240
Back up sensor located in rear bumper failed 
98000 mi

US $55
Switch to electrically close hatch back door failed. Purchased replacement switch and replaced. Problem fixed. 
100000 mi

US $1900
MMI Amplifier 
100700 mi

US $1100
Dash lights failed to turn on with headlight switch in auto position. Rain sensor / light sensor replaced. 
111700 mi

US $700
MMI computer failed.  
118000 mi

US $120
Low freon. Recharged 
50200 mi Instrument Cluster replaced to repair failing Driver's Information Display. 
36000 mi Warranty- Cargo Strap, N/C Diagnosed HVAC quirk- repl part ordered 
37500 mi Replace HVAC module under warranty 
29200 mi

US $120
Intermittent starting problem. Their diagnostics found no problem so I brought car back home. 
29000 mi

US $600
Bad starter and relay replaced. 

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2006 Audi A6 4dr Sedan

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

112000 mi

US $400
Battery needed replacement 
50700 mi

US $85
Wiring harness shorted between gauge cluster and fuel level sensor, replaced.  A/C Pressure valve faulty, occasionally let in hot air in vents on outside of console (drivers and pass), replaced. Took 3 days to receive/install parts. 
64000 mi Diagnosed bad antenna/shark fin. $150+ to diagnose further, plus $400+ to fix. Nav is showing 0 received satellites. Opted to not fix. 
74000 mi

US $2200
Airbag light on, due to rear right seat belt circuit being broke. 
99600 mi

US $20
Rainwater got into driver's side footwell (common problem) and shorted out bluetooth module. Replaced with fiber loop and stereo works again. I tried to clean out the area in the engine bay/firewall that I think flooded, so it is possible that I didn't do a good job and it could flood again, although it shouldn't matter since I removed the electronics/bluetooth module that would short out if it did flood. auto-leveling error. Still diagnosing. 
101000 mi

US $250
Replaced headlight due to high beam shutter malfunction 
86800 mi

C $450
Fuel level sender failed, causing inaccurate fuel quantity reading. 
74700 mi

US $4184
AC Compressor, dryer & orifice tube replacement, plus 75000 service. 
81500 mi Passenger headlight out again. Was replaced less than 6 months ago. 
95000 mi

US $750
Replace driver side DTRL and replace side marker light. 
101800 mi

US $250
Driver side DRL out after being replaced 5 months ago 
129500 mi Only hot air blows out the driver and passenger side vents. The center vents blow the proper air based on setting the temperature 
134700 mi

US $140
Replaced passenger rear taillight assembly. 4 LED were burned out. It looks like part of the circuit board was melted. One of the contact points was broken and so the turn signal and the brake light were not working. 

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2006 Audi A6 4dr Sedan

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

93200 mi

R 1000
RAdio was going on and off every 3 seconds. Air con would not display Other MMI failures as well. The telephone unit under the carpet had failed. 
62300 mi

US $2000
Compressor failed. Replaced compressor, drier and orfice tube flush A/C system twice. 
32000 mi Right rear window motor replaced Front parking side light replaced Rear Cupholders replaced *all covered under warranty 

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2006 Audi A6 4dr Sedan

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

49500 mi

US $85
a/c failed on hottest day of summer. Other issues looked at include Power steering noise and sunroof issues 
62620 mi The air bag sensor warning light became active within 3 weeks of buying it and was found to be a broken connector (also replaced under warranty - $300). 
46000 mi

US $200
Tire pressure monitoring system - battery failure 
78000 mi

US $500
Replaced sensor that turns on headlights at night 
101000 mi

US $200
One of the rear plate lights is reported by car as non-functional. Shop spent an hour of labor looking at it but could not figure out how to solve. $100 in labor. :-( I just live with it beeping on the dash now when i turn on my headlights. 
137000 mi Dealer caused an error in the programming of the gas mileage computer. Suggested I replace the instrument cluster. When they realized they caused the issue, they reprogrammed the trip computer. 
150000 mi

US $2100
New compressor motor 
94100 mi

US $770
Ventilation for heater was stuck open, sending full heat to side and rear vents. Required a new Audi dealer supplied part ($500 for part alone) to correct issue. 
97000 mi

US $271
One HID bulb was near dead. Replaced both at same time. 
106500 mi

US $240
Car shows a brake light out in dash. Brake lights are LED, there is no actual malfunction in the brake lights. 
118000 mi

US $160
We required a replacement of the entire LED right rear brake light unit in order to fix this issue. It was deemed to be due to corrosion on the circuits within the brake light unit. The market has responded with several aftermarket brake light housings. Cost was $160 for the unit. Replaced by owner (15 minute job, very easy). 
62000 mi

US $800
Tire sensor malfunction due to low batteries 
176000 mi

US $190
Tail light assembly LED brake lights shorted out after water damage to poorly sealed enclosure as a result of broken retaining tabs on the assembly. Total replacement of the driver's side tail light assembly as a result. 
240000 mi

US $8
Replaced front amber marker light, took longer to access the bulb than to actually replace the bulb. 
246000 mi

US $900
Takata airbag sensor recall/replacement. 
92700 mi

US $120
A/C Recharge Entire headlamp assembly replaced. internal left/right motor broken 
92000 mi

US $50
Fuel sensor quit working, indicators on dash said 0 miles left and needed fuel, gauge for fuel was below empty, but tank was full. Fixed in 4 hours. Cost was $50 warranty deductible. 
28000 mi  
38000 mi Driver side mirror sticking while unfolding. Takes several tries to have mirror return to factory unfold position. Can not close passenger side front window with driver side control. Window will open with control but not close. 
39000 mi Motor for driver side mirror fails to fully unfold mirror. New motor assembly ordered. 
44000 mi replaced driver side rear view mirror, all parts except housing. 
138900 mi

US $150
Starter died, one of the wires corroded thru. 
154000 mi

US $400
Alternator failure, replaced with factory unit. 
37000 mi Electrical system shorted. First, no sound from any system. While waiting for appointment, car would not start (sound came back on) and had to be towed. 
68700 mi Airbag light, seatbelt squib 
82000 mi

US $400
Hid bulb replacement 
89900 mi

US $800
Hot air from outer vents when AC on 
120300 mi

US $1000
Car alarm signaled a break in occasionally with the lights flashing and horn beeping. It would happen randomly. Christmas eve is went off a dozen times while were in a resurant. It was the right rear door sensor $300 parts and labor. 
121300 mi Tire pressure sensor malfunction. Shop could not pin point which one failed but I was told it is likely the battery going out on them. All 5 would need to be replaced at about $140 each or about $700 
74800 mi

US $450
seat belt tensioner caused a check air bag light to illuminate 
72000 mi Dual temp control valve failed and required replacement 
31000 mi A/C compressor need replacing Driver window malfunction. "could not replicate" 
42000 mi power window regulator 
63000 mi

US $400
Horns replaced. Front left amber driving light out following repair. Went back to have it replaced. 
43000 mi No power to the cigarette lighter - tried to replace fuse but the fuse kept blowing. Warranty covered replacement of cigarette lighter. 
44000 mi The fuel gauge would read empty but I know there was at least a third of a tank. This is a known problem and there is a wiring kit that the dealer had to order to repair the problem Left taillight malfunctions and sensor will come on in the driver control panel indicating a malfunction. This is a known problem and the dealer ordered the left taillight assembly and replaced. 
72000 mi

US $250
Rear parking assist buzzer failed, replaced 
80000 mi TPMS warning keeps coming on, no issues with tire pressure. TPMS replaced. 
139000 mi

US $400
Doors won't lock, car won't start.....replace ignition switch 
46500 mi

C $100
Air Conditioning stopped working. Problem with electrical connectors to A/C unit. Connectors replaced. 

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2005 Audi A6

Engine not specified

141360 mi Random starter fault when sold. 
44000 mi Entire Multi-Media Interface (MMI) died. No radio, cd, satellite, phone, nav or set-up features. 

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2005 Audi A6 4dr Sedan

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

60200 mi

US $500
Replaced headlight due to faulty motor 
104300 mi

US $1000
Hot air was blowing out of the vents, even though the AC was on. On second visit, we replace the valve and the problem went away. Dealers don't know about this issue -- Google it and you will find it. 
122000 mi

US $300
Sensor in Ac dead. Part replaced. 
122000 mi Broken AC. Broken nav. 
39000 mi

US $1965
Water cooled altenator started making a horrible noise; apparently a bearing failed causing the problem, this bad boy cost around $1000 to replace. 
189000 mi

US $600
AC Compressor failed. Compressor, Recieverdryer, and orifice tube replaced. System flushed. 
57940 mi Both front power windows were rolling up or down very slowly. Regulators replaced. Problem remained. 
62620 mi The front windows are rolling up and down too slowly. parts ordered. 
62920 mi Parts installed, slow windows and switches fixed. 
60000 mi Right rear light intermittently out. Replaced whole rear light assey under CPO warranty. 
86000 mi

US $300
A/C Not working and performed Total A/C Diagnostics. Found low charge of R134A A/C Gas and Re-Charges gas. Parking Sensor Buzzer sound is breaking up. Part is only $20 but Labor will cost another $240 so decided not to fix problem. 
90000 mi

US $5
Xenon light leveling motor defective warning light came on but dissappeared by itself. Problem has not returned for another 2 weeks. Side marker bulb out warning lit. Bought bulb at Walmart for $5 and self repaired. Warning light is now off. 
C $650 start failure 
Car showing severe electrical problems. Battery drain. Repair trip to diagnoze problems 
23000 mi airbag light in dash on. This was the third time it has been back for the same problem. replaced module in dash, replaced seatbelt sensor in back seat, then replaced entire seatbelt mechanism. LIGHT is back ON!! Wiperblades replaced and center console doo 
49000 mi

US $50
air bag warning light came on and required software update. 

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2005 Audi A6 4dr Sedan

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

75640 mi

C $40
The warning for the rear right brake/turn signal light goes on intermittently. However, the bulb is fine... seems to be an LED contact problem. Likely, the whole fixture needs to be replaced @ $300 (AUDI likes this approach a lot). 
77500 mi

C $600
Front passenger headlight burned out, $350 after tax... Did the carbon injector cleaning service for $250, we'll see what that accomplished. 
77500 mi When sold the brake light was still intermittently not working (tripping the alert on the dashboard) - by extension the right turn signal wouldn't work either because it was the same light. 
60000 mi

US $800
Airbag warning light came on. Needed to replace ignitor. 
80000 mi

US $175
Normal trip when something broke, can't remember what really, mostly little things. 
88000 mi

US $200
Repair the Back-up sensor 
128600 mi Vents run hot air when A/C is indicated. 
130000 mi HVAC duct issue never fixed, would have been $1,200. 
64200 mi

US $50
Fuel gauge fluctuates 
77000 mi

US $50
headlight system that follows direction of wheels 
131000 mi rear left brake and turn signal fail to operate intermittently 
39000 mi the button on the drivers side door to lock/unlock door with advanced key was inoperable Surround sound settings resetting to factory settings. Not able to select station presets, cursor kept jumping to top of screen. 
129000 mi

US $1100
Rear plate lights not lighting. Problem with one the the computer modules. 
167000 mi

US $1030
Amplifier failed causing loss of radio, nav, Bluetooth, cd player. 
76000 mi

US $1284
Heater blowing hot and cold air from random vents; fixed through TSB. New battery drains prematurely; brake light TDB. Advanced Key stopped working; replaced start/stop button. Drivers Auto Down does not work consistently; replaced window pad. 
84800 mi

US $1400
Front passenger occupant sensor need to be replaced. Airbag light came on. Part was not in stock; dealer had to order from Germany, est shipping 5 days, repair 4 hours max. 
93000 mi driver side brake lamp: replaced assembly because LED 
105000 mi

US $1600
SRS Airbag light on. Needs new center rear seat belt sensor. 
42000 mi

US $160
The car was taken in early for it 45,000 service. I had to pay full price for the service aprox $110. The A/C compressor was broken so the part was ordered, then installed a week later. It was covered under the CPO Warranty. $50 deductable CPO warranty 
42000 mi

US $50
The window washing fluid motor was replaced. 
61000 mi

US $128
Air Conditioning unit was recharged with Freon 
142000 mi

US $100
Peripheral air vents occasionally blowed hot air when ac was on. Found fix online. AC valve module needed cleaning. 
44800 mi TSB was used to repair the battery being constantly drained. 
66000 mi

US $890
Rear Defrost is not working. Fix was to replace AC head unit. $1000 with parts and labor = Living with no rear defrost! Right rear taillight was grounding out causing all right rear lights to fail 
31000 mi Fix power input closest to front dash 
17400 mi Repair locking mechanism in driver side door 
27625 mi Airbag light came on. Attributed to software fault. Software updated. Engine light came on.Found multiple ignition misfires, swapped coils and sparks plugs, to return @later date. 
33874 mi Airbag light is on.Found faulty seat belt buckle shorted out, replaced. 
88500 mi

US $470
Adaptive headlight is out. For replacement over 1000.00. 
88200 mi

US $700
Problem with left brake, turn signal and Parking brake light. Electrical 
58300 mi TPMS sensors needed replaced. Disabled the TPMS system by vag com. Transmission service- normal 
60000 mi

US $1750
AC compressor and dryer R & R. 
32000 mi Replaced CD changer in glovebox because it was staticy and wouldn't play even brand new clean CDs. Warranty item 
73000 mi

US $50
rear fog lights. 3 or 4 different audible signals indicate bulbs out, but I cant really see which ones are out even when I have someone else in car and look myself. Don't even know what a 
112500 mi

US $10
Light bulb burned out, day running side light, front right side, inside the bumper. 
130000 mi

US $465
Replace and reprogram battery,  
78000 mi ongoing problem with driver-side rear turn signal/brake light that intermittently stops working. Dealer replaced taillight assembly for 3rd time. Unsuccessful - again! 
79000 mi

US $765
Service manager said they replace all the light bulbs with genuine Audi parts - thought maybe they hadn't done that previously. Still unsuccessful. 
78600 mi I am still waiting for the dealer to acquire a loaner car for me to use while they try once again to find a fix. In the meantime, I'm trying to avoid making any left turns or changing lanes on the highway. 
80000 mi Brought Audi to dealer for routine maint. end of June. They said needed brakes (min. $500). Decided to give up on electrical problem & spend no more $$ on the car. Traded for a 2011 Nissan Maxima. I feel cheated by Audi Company. 
79500 mi

US $800
Replaced heating unit and control unit for heat/ac 
129000 mi

US $306
Initially I got a dash warning about "Left dipped headlight" (dipped apparently means low beam). Shortly thereafter, I got a dash indicator that seamed to be a light bulb with an X through it, which means a light outage. Sure enough, the left low-beam HID headlight was not working. The repair shop replaced the bulb, which seems to have cured the problem. 
131000 mi "Interim" solution for for Takata front passenger-side airbag inflator was installed. I believe the repair was replacement of the inflator with an improved version. 
132860 mi Driver's door has not been responding reliably to remote unlocking. Most of the time it doesn't work. Shop tech told me Audi has TSB out about the central lock system and that there is a software update that is best done at the dealership service department. Tech said the software update might not be all that is needed to fix the problem, but it should be done first, before any mechanical repair is attempted. 
133146 mi

US $870
The drivers' door had recently stopped responding reliably to the keyfob remote control for unlocking. Most of the time, I have had to insert the key into the lock to unlock the door. The dealership replaced the lock assembly on the driver's door. 

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2005 Audi A6 4-door

turbocharged 6-cylinder manual 2WD

119000 mi

£130
Had battery replaced 

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2004 Audi A6 4dr Wagon

220-horsepower 3.0L V6 5-speed shiftable automatic AWD

59200 mi

US $90
replaced brake switch 
117500 mi

US $256
Solder joint failure in amplifier in sub-woofer. Purchased OEM NOS part on Amazon for $50.00. Technician replaced the sub-woofer assembly. 
122000 mi

US $250
Right-front woofer speaker needed to be repaired. New speaker purchased online for $32. 
129750 mi

US $265
Battery was 6.75 years old 

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2004 Audi A6 4dr Sedan

265-horsepower 2.7L V6 6-speed manual AWD

49000 mi Cabin blower squeaky, replaced blower. 

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2004 Audi A6 4dr Sedan

265-horsepower 2.7L V6 5-speed shiftable automatic AWD

140000 mi Electrical problems caused by water leak never fully sorted out. Mechanic now helping me sell the car. 
99300 mi

US $100
Trunk not locking. Trunk latches properly, and will trigger alarm when opened (if car is locked), but the trunk itself will not lock. 
99000 mi

US $265
Trunk not locking. Trunk would latch and trigger the alarm when opened (when car was locked) but not lock. This had been a long-term problem that literally fixed itself the day we decided to have it diagnosed. Had latch replaced anyway. 
50000 mi

US $50
Turn signal bulb burned out in instrument cluster. Dealer stated bulb could not be replaced, new instrument cluster required. Repair covered by certified warranty. 
63000 mi

US $1400
Starter failed, car would not start. New starter installed. Recall items(coil packs)replaced by dealer at n/c. 
87000 mi

US $600
Alternator. 
170000 mi

US $530
Voltage meter came on and brought it to a shop to test the alternator. Alternator was indeed failing and had it replaced. 

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2004 Audi A6 4dr Sedan

220-horsepower 3.0L V6 5-speed shiftable automatic AWD

US $495 Left rear window regulator replaced, CPO warranty, $50 deductible. Alternator and battery replaced, CPO warranty. 
41000 mi

US $535
Washer fluid system was leaking washer fluid. Dealer replaced washer fluid pump.  
49600 mi

A $630
Inefficient cooling and leaking into rear passenger footwell. Regassed, resealed, changed filter 
54560 mi Indicator lights stay lit when turning, intermittent problem over a few weeks. Mechanic said to give the hazard light button a smack next time it happens. Hey presto - all good for now! 
60320 mi

A $100
Car failed to start, thought alternator had failed as after jumped stalled in 5 mins. Turned out to be a coroded positive battery lead. 
72600 mi

A $110
inner reverse sensors going off with no object. Found to be picking up the towbar, unable to adjust the direction of sensors. Problem still occurs intermitently 
80100 mi

A $1400
Alternator failed - expensive part in AU! 
94000 mi

US $300
Cruise Control lever had to be replaced 

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2003 Audi A6 / S6 / RS6 4dr Wagon

340-horsepower 4.2L V8 5-speed shiftable automatic AWD

57010 mi Replaced printed circuit for shifter. Under warranty 
117000 mi

US $270
fan control module burnt out, dealer diagnosed, part ordered, will self install. 

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2003 Audi A6 / S6 / RS6 4dr Wagon

220-horsepower 3.0L V6 5-speed shiftable automatic AWD

112300 mi

US $18
Brake light switch. 

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2003 Audi A6 / S6 / RS6 4dr Wagon

123380 mi

€50
Turn signal relay failed 

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2003 Audi A6 / S6 / RS6 4dr Sedan

turbocharged 450hp 4.2L V8 5-speed shiftable automatic AWD

116600 mi

US $1200
AC Compressor failure. Replace AC compressor 

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2003 Audi A6 / S6 / RS6 4dr Sedan

turbocharged 250hp 2.7L V6 6-speed manual AWD

211000 mi

US $128
Replaced battery at 209127 miles 
216000 mi

US $67
AC not working. Tried re-charge but it appears to be failed compressor. Owner elected not to repair as vehicle is driven mostly in the winter. 
238000 mi

US $120
Battery was 3+ years old and did not hold a chage. Note - the vehicle had been stored outside for 7 months and not driven. 
238000 mi AC never repaired. 
67000 mi

US $100
Turn signals stopped working. Replaced hazard relay in dash with aftermarket parts. 
133000 mi

US $200
radio reception gone 
137000 mi comfort module fuse blew after screwing with non-working rear interior overhead light, possibly related to radio reception issues as fixing loose solder contacts in rear overhead light and replacing the fuse fixed that. 
153000 mi

US $50
door lock actuator, hazard switch 
160000 mi

US $230
alternator died, replaced alternator, good to go. 
169000 mi door switch in driver door malfunctioned, had to repair microswitch. 

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2003 Audi A6 / S6 / RS6 4dr Sedan

turbocharged 250hp 2.7L V6 5-speed shiftable automatic AWD

87000 mi

US $50
LCD in instrument cluster starting to lose pixels. Dealer replaced entire cluster under CPO. 
90000 mi

US $50
The ESP and ABS ligts were coming on sporatically, so the brake light switch was replaced by dealer under CPO. Don't know entire cost, but I only paid the $50 deductible.  The ESP and ABS ligts were coming on sporatically, so the brake light switch was replaced by dealer under CPO. Don't know entire cost, but I only paid the $50 deductible. They also fixed a rattling exhaust heat shield at no charge. 
103000 mi

US $65
flasher relay that is part of the hazard switch. so, whole hazard switch had to be replaced. 
95000 mi

US $125
Center cluster pixels were fading out. 
152500 mi

US $28
Replaced the Hazard relay 
155000 mi

US $45
Replaced turn single stalk 
196000 mi

US $229
Alternator died 

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2003 Audi A6 / S6 / RS6 4dr Sedan

300-horsepower 4.2L V8 5-speed shiftable automatic AWD

64480 mi

A $5300
Reverse warning inoperative. 
65100 mi

A $280
Reversing alarm speaker replaced. 
129000 mi

US $70
Replaced both xenon D2S headlight bulbs 

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2003 Audi A6 / S6 / RS6 4dr Sedan

220-horsepower 3.0L V6 5-speed shiftable automatic AWD

89000 mi

US $214
replaced head unit- display showed "error 3" 
157480 mi

C $760
alternator failed, replace with new one 
116000 mi

US $768
Air bag light on 
64000 mi

US $350
Xenon igniters both failed and blew fuses for tailamps and transmision locked up in park when I got home will not go into gear. Car is now unusuable. This happened after I closed the trunk putting groceries in car. Had to drive home with no lighting. 

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2002 Audi A6 / S6 4dr Wagon

340-horsepower 4.2L V8 5-speed shiftable automatic AWD

80000 mi

US $52
Micro switch inside drivers door latch broke - various systems in the car rely on knowing the door is open or closed. Replaced latch assy with used unit from '04 model A6 
85000 mi Original Battery replaced 
92000 mi Removed, cleaned, lubricated the heater blower motor. These are known to make a bird chirp like noise over time. A little $0 TLC is all that's needed. 
104000 mi

US $115
Duralast Gold battery, which was new 7 years ago, began showing signs of fading. Replaced with genuine Audi/VW battery 000-915-105-DJ 
148800 mi

US $1000
Bad AC Clutch, replaced with new compressor, drier etc and replace comfort control module. 
160100 mi Replaced electric condenser cooling fan 
95000 mi

US $155
Turn signals functioning intermittently. Diagnosed problem online (AudiWorld.com) as failed turn signal relay; shop confirmed relay failure; replaced relay and corrected problem. 
104000 mi

US $1300
Battery light warned on Sunday; drove car to shop on Monday but didn't make it. Alternator gave out. Required new alternator and battery. 

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2002 Audi A6 / S6 4dr Wagon

220-horsepower 3.0L V6 5-speed shiftable automatic AWD

105000 mi

US $85
Flasher relay 

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2002 Audi A6 / S6 4dr Sedan

turbocharged 250hp 2.7L V6 5-speed shiftable automatic AWD

70000 mi

US $950
Replaced broken Alarm Sensor disable switch. 
97000 mi

US $1575
Replaced alternator and battery - complete electrical failure. 
135000 mi

US $800
Aux fan broken and needed repair. Aux fan control module needed replacement. 
88000 mi

US $650
repair AC leak 
111000 mi They had to get the directionals fixed, not sure if it was bulbs or a flasher but it was very inexpensive. 
79980 mi

C $300
clock spring inside the steering wheel 
80600 mi

C $90
Relay for the turn signals 
88080 mi

C $200
Self level headlight control 

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2002 Audi A6 / S6 4dr Sedan

300-horsepower 4.2L V8 5-speed shiftable automatic AWD

124000 mi

US $200
replaced turn signal relay 
126000 mi

US $2000
AC blower motor failed. 

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2002 Audi A6 / S6 4dr Sedan

220-horsepower 3.0L V6 5-speed shiftable automatic AWD

83000 mi

US $367
Economy button would stay on climate control module and blow hot air. A/C system diagnostics . A/C high pressure switch with seal replaced system recharged and filled with dye leak detection fluid. 
59000 mi

US $50
A/C blower fan replaced under CPO. 
134700 mi Blinkers have stopped working. Relay is suspected although hazards still work. Update: fixed soon after. 
128000 mi

US $120
Oil Temperature Sensor / Oil Level Sensor in oil pan replaced. I no longer get the amber alert for the sensor, but my oil temp sensor no longer provides a temp reading. 
135000 mi No oil temp reading. 

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2001.5 Audi A6 / S6 4dr Sedan

turbocharged 250hp 2.7L V6 6-speed manual AWD

78000 mi

US $600
LCD in cluster. 

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2001 Audi A6

Engine not specified

93000 mi

US $800
Dealer also replaced rear window switches (also out). Dealer also replaced instrument cluster (faded). 
91882 mi

US $583
Repl a/c compressor 

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2001 Audi A6 4dr Wagon

200-horsepower 2.8L V6 5-speed shiftable automatic AWD

83000 mi

US $50
Turn / hazard signal relay failed. 
113000 mi

US $1536
Replace Air Bag control module  
128000 mi

US $200
Power window not working properly and door not closing properly 
146000 mi

US $550
Alternator went out 
90700 mi

US $400
Windshield washer pump and controller replaced. Also a temperature sensor was replaced. 
41000 mi

US $500
Both front window regulators. 1 replaced, 1 repaired. 
125800 mi

US $20
Replaced fuse in back of symphony radio. The removal tools (4) did not release the dual din radio. I broke the front button/display pannel off, then was able to pull the rest of the radio. Re-installed and now works fine. 

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2001 Audi A6 4dr Sedan

turbocharged 250hp 2.7L V6 6-speed manual AWD

84000 mi

US $2133
Battery indicator lit which turned out to be a bad alternator. Occurred 150 miles from home and dealer gouged me while remaining professional and pleasant. 
89000 mi

US $1200
Climate control blower motor had begun making noise but still operated. I suspected failing bearings ands eventual complete seizure so I had it replaced. 
133000 mi

US $75
Turn signal / emergency flasher switch relay replaced 
142000 mi

US $190
Xenon headlamp out. Faulty ballast was replaced with used unit ($85). Dealer had diagnosed problem and quoted $675 to repair. 
122000 mi

US $230
Replaced driver's door locking mechanism, due to faulty microswitch that did not turn on door open signal. 
147200 mi rear driver side airbag short to ground. Airbag replaced. 
161000 mi Airbag intermittent short to ground 
172000 mi

US $1700
airbag light on. fixed by replacing rear seat driver side airbag replaced brake light switch and light bulb 
111000 mi

US $180
The dash LED display pixels were bad since 2012, now I found out that the display can be replaced instead of replacing the entire cluster for $150 + shipping, it is no brainier. 

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2001 Audi A6 4dr Sedan

turbocharged 250hp 2.7L V6 5-speed shiftable automatic AWD

116500 mi

US $180
Battery Failed Numerous fuses blew when battery was left dead for extended period of time. 
135000 mi

US $691
Alternator died slowly. In the beginning it was just a battery drain. But after a few days of troubleshooting it was evident that the alternator was on it's last leg. 
142000 mi

US $850
Xenon Headlight quit. Horn stopped honking when you lock the doors. I'm told it was because the door sensor on one of the doors quit. 
56000 mi

US $700
Engine oil and filter change. A/C service (added .5 lb refrigerant. Price included in fan clutch replacement reported separately. 
59000 mi

US $1290
Air Bag control module failed fault 65535 
65000 mi

US $3000
Auto dimming rear view mirror cloudy - warranty would not cover 
148800 mi

C $450
signal light relay switch. Required air bag removal to access. Replaced 4-way flasher relay while in there. labour = 2.5 hrs. 
95000 mi

US $1500
Hazard switch replaced after blinker lights quit working 
164000 mi

US $190
Alternator failed and I replaced it with about 6 hours work. 
127000 mi

US $158
Fog light bulbs replaced, shop said was an elec problem. 
103000 mi sensor in door handle for alarm replaced replaced child window lock switch in driver's door 
108000 mi

US $100
replace blower motor in dash. 

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2001 Audi A6 4dr Sedan

300-horsepower 4.2L V8 5-speed shiftable automatic AWD

150000 mi

US $350
Replaced Front headlight level sensor 
109000 mi

US $1
Unusual hesitation and ESP triggering. Pulled codes using VAG-COM and saw that the brake light switch was defective. Replaced it per Bentley instructions and everything is just perfect. 
117000 mi

US $30
hazard flasher switch failed.  
159000 mi

US $66
Had the airbag module repaired. 
90520 mi

C $360
door lock latches on front doors, courtesy lights do not operate, each latch is over $400 plus install for total of approx $1,200. 
110000 mi

US $200
brake switch to release from park 
119611 mi

US $1181
AC fan failure, replaced & recharge system 
180000 mi Airbag warning. 

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2001 Audi A6 4dr Sedan

200-horsepower 2.8L V6 5-speed shiftable automatic AWD

70680 mi

C $1450
New alternator 
91000 mi

US $105
Four way flasher relay assembly failed. 
142000 mi

US $80
Oil level/temp sensor died and I replaced it. Right rear power window regulator failed and I replaced it 
124000 mi

US $525
Coolant system flush (no heat), $250. 

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2001 Audi A6 4-door

turbocharged 6-cylinder manual AWD

140000 mi

US $750
Needed a new alternator 

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2001 Audi A6 4-door

turbocharged 6-cylinder automatic AWD

75000 mi

US $1500
Leak in compressor, required replacement . 
47000 mi Replaced am antenna amplifier wire. 

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2001 Audi A6 4-door

6-cylinder automatic AWD

78000 mi

US $50
Climate control not accurate in heat mode. Temp in the cabin would decrease while the temp setting had to be continuously increased. Thermostat replaced. 

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2000 Audi A6

Engine not specified

276000 mi

US $500
compressor stopped working 

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2000 Audi A6 4dr Wagon

200-horsepower 2.8L V6 5-speed shiftable automatic AWD

92800 mi

US $50
Cheap Chinese secondary air pump installed in 2012 failed, causing CEL. Found a rebuild kit for the original one(which I kept). Rebuilt and reinstalled. 
98000 mi Located water leak as plugged AC drain valve. Cleaned same. 
196000 mi

US $1700
Alternator went bad. Replaced. 

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2000 Audi A6 4dr Sedan

turbocharged 250hp 2.7L V6 5-speed shiftable automatic AWD

154000 mi

US $500
replace alternator and battery 
114000 mi

US $300
Turn signal relay failed and turn signal stalk developed short. Both had to be completely replaced 
141000 mi

US $300
power windows, door locks, turn signals, sunroof, and interior lights are all inoperative. Also, the DLC is not communicating with computer when I scan it. 
150000 mi

US $60
Driver's door lock module replaced. 
189000 mi

US $150
Alternator charge was low (less than 12 volts). Replaced alternator with remanufactured unit. 

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2000 Audi A6 4dr Sedan

300-horsepower 4.2L V8 5-speed shiftable automatic AWD

147000 mi

US $300
AC Blower and resistor failed and replaced 
82000 mi

US $68
Replaced faulty flasher unit. 
116900 mi

US $120
Replaced faulty ride height sensor related to headlight auto-leveling function. 
150000 mi

US $110
Door lock failure - next. Using fob for now. 
155300 mi New Starter (BOSCH REBUILT) 

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2000 Audi A6 4dr Sedan

200-horsepower 2.8L V6 5-speed shiftable automatic FWD

123000 mi Electrical problems. 
125000 mi

US $2500
battery exploded, electrical problems... all in 2 months! :( 
150000 mi

US $700
Driver Window wont go up 
150000 mi

US $2300
Alternator Alternator plus steering  

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2000 Audi A6 4dr Sedan

200-horsepower 2.8L V6 5-speed shiftable automatic AWD

116500 mi

US $200
Pixelated center LCD display. Replaced with a new display. 
141000 mi

US $95
replaced stereo head unit - ordered from parts supplier, mechanic installed free labor intermittant turn signal function - replaced new bulb holder on driver's side. 

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2000 Audi A6 4-door

8-cylinder automatic AWD

106020 mi Needed new airbag module. 

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2000 Audi A6 4-door

6-cylinder automatic AWD

98000 mi dashboard LCD completely fading, driver’s side window actuator malfunctioned, rear passenger window childlock malfunctioned (rear passenger controls doesn’t work, driver controls work), Auto dimming mirror leaking fluid.  

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1999 Audi A6 / S6 / RS6 4-door

6-cylinder automatic AWD

161000 mi

US $1400
Repair front right blinker socket. 
125000 mi

US $110
Wiring harness under driver's seat wore and caused windows, sunroof, power seats to fail. Dealer figured it out quickly and repair was cheap... 
111000 mi

US $190
A/C needed recharge and a A/C related filter replaced 
63240 mi Bulb replaced. Took about ten minutes. 
85300 mi Sunroof switch disassembled & cleaned. Roof would sometimes not close and most recently opened on it's own. Also, repaired cruise control module - re-soldered connections C7, C9, C11 on module circuit board. 
146000 mi

US $300
Central Locking System shorting and blowing fuse. Ashtray LED was melted and causing short. 

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1999 Audi A6 / S6 / RS6 4-door

4-cylinder automatic 2WD

131000 mi

US $450
driver side window wouldnt go back up 

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1998 Audi A6 / S6 / RS6 4-door

6-cylinder automatic AWD

198000 mi Would not start more than 75 percent of attempts. Among parts replaced in attempt to fix: ECU, many sensors and relays, ignition switch, coil pack, upper wiring harness. 
202000 mi Airbag light was on. Discovered connector was unplugged when removing steering wheel to fix broken ignition. 
204000 mi

US $20
Pixels in Dashboard display not working properly. 
208000 mi

US $115
Instrument panel sent to repair shop for pixel display repair. Re-installed after instrument panel repaired. 

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

Audi A6 / S6 / RS6 Electrical Problems

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