2006 Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2006

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2006 Audi A6 / S6 / RS6 repairs by problem area

Engine (31%)

Transmission and Drivetrain (5%)

Brakes and Traction Control (6%)

Suspension and Steering (16%)

Electrical and Air Conditioning (31%)

Paint, Rust, Leaks, Rattles, and Trim (7%)

Other (4%)

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Chart based on 265 repairs.
See TSBs and recalls for the 2006 Audi A6 / S6 / RS6.

2006 Audi A6 / S6 / RS6 electrical repair cost distribution

$2500+ (1%)

$1000 - $2499 (12%)

$500 - $999 (13%)

$100 - $499 (35%)

< $100 (39%)

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Chart based on 69 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2006 Audi A6 / S6 / RS6

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 / S6 / RS6 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. 
111700 mi

US $700
MMI computer failed.  
118000 mi

US $120
Low freon. Recharged 
99500 mi

C $500
Had to replace the AC compresor. 
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. 
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. 
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. 
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 

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2006 Audi A6 / S6 / RS6 4dr Sedan

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

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 
112000 mi

US $400
Battery needed replacement 
86800 mi

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

US $4184
AC Compressor, dryer & orifice tube replacement, plus 75000 service. 

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2006 Audi A6 / S6 / RS6 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. 
32000 mi Right rear window motor replaced Front parking side light replaced Rear Cupholders replaced *all covered under warranty 
62300 mi

US $2000
Compressor failed. Replaced compressor, drier and orfice tube flush A/C system twice. 

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2006 Audi A6 / S6 / RS6 4dr Sedan

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

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. 
28000 mi  
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. 
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). 
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 
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. 
49500 mi

US $85
a/c failed on hottest day of summer. Other issues looked at include Power steering noise and sunroof issues 
62000 mi

US $800
Tire sensor malfunction due to low batteries 
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 
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. 
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. 
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. 
109500 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 
80000 mi TPMS warning keeps coming on, no issues with tire pressure. TPMS replaced. 
72000 mi

US $250
Rear parking assist buzzer failed, replaced 
139000 mi

US $400
Doors won't lock, car won't start.....replace ignition switch 
74800 mi

US $450
seat belt tensioner caused a check air bag light to illuminate 
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 Dual temp control valve failed and required replacement 
46500 mi

C $100
Air Conditioning stopped working. Problem with electrical connectors to A/C unit. Connectors replaced. 
46000 mi

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

US $500
Replaced sensor that turns on headlights at night 

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2006 Audi A6 / S6 / RS6 Electrical Problems

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 2006 Audi A6 / S6 / RS6 problems occur, check out our car reliability stats.