2004 Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2004

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2004 Audi A6 / S6 / RS6 repairs by problem area

Engine (38%)

Transmission and Drivetrain (20%)

Brakes and Traction Control (0%)

Suspension and Steering (16%)

Electrical and Air Conditioning (16%)

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

Other (7%)

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Chart based on 128 repairs.
See TSBs and recalls for the 2004 Audi A6 / S6 / RS6.

2004 Audi A6 / S6 / RS6 electrical repair cost distribution

$2500+ (0%)

$1000 - $2499 (10%)

$500 - $999 (24%)

$100 - $499 (38%)

< $100 (29%)

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Chart based on 21 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2004 Audi A6 / S6 / RS6 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 / S6 / RS6 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 / S6 / RS6 4dr Sedan

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

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. 
87000 mi

US $600
Alternator. 
63000 mi

US $1400
Starter failed, car would not start. New starter installed. Recall items(coil packs)replaced by dealer at n/c. 
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. 
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. 
140000 mi Electrical problems caused by water leak never fully sorted out. Mechanic now helping me sell the car. 

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2004 Audi A6 / S6 / RS6 4dr Sedan

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

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 
41000 mi

US $535
Washer fluid system was leaking washer fluid. Dealer replaced washer fluid pump.  
US $495 Left rear window regulator replaced, CPO warranty, $50 deductible. Alternator and battery replaced, CPO warranty. 

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

2004 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 2004 Audi A6 / S6 / RS6 problems occur, check out our car reliability stats.