no report yet
Storage: tank assembly
Risk. A FUEL LEAK IN THE PRESENCE OF AN IGNITION SOURCE COULD LEAD TO A VEHICLE FIRE.
2004 Audi A6Problems, recalls & complaints
NHTSA has logged 35 owner complaints about the 2004 Audi A6, most often about the fuel system, gasoline. It is covered by 4 safety recalls.
Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through December 12, 2023. Updated daily. Photo: DestinationFearFan, CC BY-SA 4.0.
Complaints by system
Where the 2004 Audi A6 has problems
35 complaints grouped by the system owners reported.
5Fuel system, gasoline
3Electrical system1 crash/fire/injury
3Air bags1 crash/fire/injury
3Engine and engine cooling1 crash/fire/injury
3Fuel/propulsion system
3Seats
3Tires
3Wheels
2Service brakes
1511 other systems2 crash/fire/injury
| System | Complaints | Crash, fire or injury |
|---|---|---|
| Fuel system, gasoline | 5 | 0 |
| Electrical system | 3 | 1 |
| Air bags | 3 | 1 |
| Engine and engine cooling | 3 | 1 |
| Fuel/propulsion system | 3 | 0 |
| Seats | 3 | 0 |
| Tires | 3 | 0 |
| Wheels | 3 | 0 |
| Service brakes | 2 | 0 |
| 11 other systems | 15 | 2 |
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
4 recalls
2004 Audi A6 recalls and how many were fixed
Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.
no report yet
Storage: tank assembly
Risk. A FUEL LEAK IN THE PRESENCE OF AN IGNITION SOURCE COULD LEAD TO A VEHICLE FIRE.
no report yet
Electrical system
Risk. THIS CONDITION COULD LEAD TO OVERHEATING OR FIRE.
no report yet
Electrical system
Risk. A FIRE COULD ORIGINATE IN THE LEFT DASHBOARD AREA.
Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Audi.
Best & worst years
2004 vs. every other A6 year
Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the A6 median. How we score
'94'95'96'97'98'99'00'01'02'03'04'05'06'07'08'09'10'11'12'13'14'15'16'17'18'19'20'21'22'23'24'25'26
- Avoid
- Caution
- Solid
- Best
- Not rated
NHTSA crash tests
2004 Audi A6 safety ratings
2004 Audi A6 4-DR. w/SAB in NHTSA's New Car Assessment Program. Photos are from NHTSA's crash tests.
- Stability control: Standard
- Forward collision warning: No
- Lane departure warning: No
1 investigation
NHTSA defect investigations
Federal investigations that included the 2004 Audi A6, and the recalls they led to.
- FUEL TANK LEAKLed to recall 08V-156
In owners' words
What A6 owners report
Recent fuel system, gasoline complaints filed with NHTSA, shortened. Personal details are removed.
SIGNIFICANT GAS LEAK CAUSED BY BROKEN GAS "IN TANK SENDING UNITS" HOUSING AND SEAL. GAS WILL LEAK AND FILL THE INSIDE OF THE CAR WITH FUMS AS WELL AS UNDER THE CAR. REPLACEMENT REQUIRED BUYING A REVISED DESIGN SENDING UNITS THAT INCLUDE ALL THREE SENDING UNITS. THE PRICE IS HIGH ~$500 AND THE…
TL*THE CONTACT OWNS A 2004 AUDI A6. THE CONTACT STATED THAT WHEN REFUELING THE VEHICLE OVER THE THREE QUARTER CAPACITY LEVEL, A SUBSTANTIAL AMOUNT OF FUEL WOULD LEAK UNDERNEATH THE VEHICLE NEAR THE EXHAUST PIPE. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER FOR DIAGNOSTIC TESTING AND STATED THAT…
2004 AUDI A6 SEDAN, 3.0 ENGINE DEVELOPED A SUDDEN LOSS OF POWER JUST BEFORE VEHICLE STALLED WHILE DRIVING ON HIGHWAY AT 65 MPH. VEHICLE WAS TOWED TO REPAIR SHOP WHERE IT WAS DETERMINED THAT THE FUEL PUMP HAD FAILED. *TR
Own a 2004 A6?
Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.