2005 Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2005

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2005 Audi A6 / S6 / RS6 repairs by problem area

Engine (38%)

Transmission and Drivetrain (4%)

Brakes and Traction Control (6%)

Suspension and Steering (12%)

Electrical and Air Conditioning (29%)

Paint, Rust, Leaks, Rattles, and Trim (6%)

Other (5%)

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Chart based on 247 repairs.
See TSBs and recalls for the 2005 Audi A6 / S6 / RS6.

2005 Audi A6 / S6 / RS6 electrical repair cost distribution

$2500+ (0%)

$1000 - $2499 (13%)

$500 - $999 (18%)

$100 - $499 (17%)

< $100 (52%)

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Chart based on 60 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2005 Audi A6 / S6 / RS6

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 / S6 / RS6 4dr Sedan

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

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. 
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. 
189000 mi

US $600
AC Compressor failed. Compressor, Recieverdryer, and orifice tube replaced. System flushed. 
60200 mi

US $500
Replaced headlight due to faulty motor 
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. 
C $650 start failure 
Car showing severe electrical problems. Battery drain. Repair trip to diagnoze problems 
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. 
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. 
122000 mi

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

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2005 Audi A6 / S6 / RS6 4dr Sedan

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

79500 mi

US $800
Replaced heating unit and control unit for heat/ac 
70000 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,  
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. 
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. 
17400 mi Repair locking mechanism in driver side door 
32000 mi Replaced CD changer in glovebox because it was staticy and wouldn't play even brand new clean CDs. Warranty item 
31000 mi Fix power input closest to front dash 
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. 
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. 
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. 
35000 mi

US $1030
Amplifier failed causing loss of radio, nav, Bluetooth, cd player. 
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 
77000 mi

US $50
headlight system that follows direction of wheels 
131000 mi rear left brake and turn signal fail to operate intermittently 
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 
64200 mi

US $50
Fuel gauge fluctuates 
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. 
142000 mi

US $100
Peripheral air vents occasionally blowed hot air when ac was on. Found fix online. AC valve module needed cleaning. 
128600 mi Vents run hot air when A/C is indicated. 
130000 mi HVAC duct issue never fixed, would have been $1,200. 
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 
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 
60000 mi

US $800
Airbag warning light came on. Needed to replace ignitor. 
46000 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 
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. 

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2005 Audi A6 / S6 / RS6 4-door

turbocharged 6-cylinder manual 2WD

119000 mi

£130
Had battery replaced 

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2005 Audi A6 / S6 / RS6 Electrical Problems

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