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definitely annoying
Crashes / Fires:
0 / 2
Injuries / Deaths:
0 / 0
Average Mileage:
40,608 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2004 Audi A8 electrical problems

electrical problem

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2004 Audi A8 Owner Comments

problem #4

Oct 182014


  • 120,000 miles


Driver smelled smoke shortly after starting his vehicle and driving away from his home. The smell was of plastic, and it was assumed from an electrical short/fire. The driver stopped the car and inspected the engine area. No evidence of fire, however the driver turned back and drove the vehicle home. Strong burning plastic smell again as the vehicle was stopped. The cabin was filling with smoke. Driver opened the trunk as the battery was located in the right rear section of the trunk. Smoke was emanating from the battery compartment. A plastic panel was removed for inspection. Located directly under the battery was a plastic module identified as TRW gnoacdobnc28U* and stamped made in malaysia??. the dealer stated that the module controls the electric parking brake for the car. Inspecting the unit, multiple wire leads that feed the E-brake control unit had burned through, as did a portion of the E-brake control unit. The body area of the car near the unit was covered in soot from the electrical fire. Years prior, the driver had issues with the E-brake, the E-brakes failing to release prompting the vehicle to be towed to the dealer. At that time the service representative walked the driver into the service area to show the driver corrosion on the electric contact leads from the control unit. The representative suggested that perhaps battery acid/gases may have run down the battery into the control unit causing the corrosion. The unit may have been replaced at that time along with the battery. Photos are available of the control unit upon request.

- Verona, NJ, USA

problem #3

Nov 242005

A8 8-cyl

  • Automatic transmission
  • 14,433 miles
The contact stated a gallon of milk spilled into the driver's seat. The milk spilled underneath the seat. When this happened it shorted out the electrical module that operated the dashboard lights and headlights. As a result the lights were blinking in and out. Currently, the vehicle is at a certified dealership for repairs. Updated 12/27/2005 - the tire pressure monitoring light illuminated on the dash. The dealer replaced the module. The trunk would not close properly.

- Seabrook, NH, USA

problem #2

Dec 282004

A8 8-cyl

  • Automatic transmission
  • 28,000 miles
My Audi A8 2004 model [xxx] cop device burned with a wire fire on Dec 28, 2oo4 - I could only stop a further fire by using a fire ext. And disconnecting the battery. I was told by the Audi shop dch maplewood N.J. and my regular repair shop langan motors, schenectady. N.Y. that they have never had seen such a problem. Updated 07/24/2012 information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6)

- Albany, NY, USA

problem #1

Apr 282004

A8 8-cyl

  • Automatic transmission
  • miles
Mmi system has intermittent resets and cause erratic performance of other systems such a windows, trunk, audio, navigation.

- Bedford, MA, USA

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