Worst 2004 Audi A6 Problems
Top 3 most-reported issues with average mileage at failure.
Gasoline Fuel System
Electrical Faults
Fuel System
Check the actual VIN — every car is different.
This page shows the model year's reputation. The VIN tells you about this specific car — accidents, title issues, odometer rollbacks. Full report just $4.99 (vs. Carfax $44.99).
All Problems by Category
Every NHTSA complaint category for the 2004 Audi A6.
| Component | Complaints | Crashes | Fires | Avg Mileage | Volume |
|---|---|---|---|---|---|
| Gasoline Fuel System | 4 | — | — | — | |
| Electrical Faults | 3 | — | 1 | — | |
| Fuel System | 3 | — | — | — | |
| Wheels:Rim | 3 | — | — | — | |
| Airbags | 2 | 1 | — | — | |
| Electronic Stability Control | 2 | — | — | — | |
| Engine & Cooling | 2 | 1 | — | — | |
| Seat-Related Issues | 2 | — | — | — | |
| Brakes | 2 | — | — | — | |
| Tire Defects | 2 | — | — | — | |
| Unintended Acceleration | 2 | — | — | — | |
| Air Bags:Frontal | 1 | — | — | — | |
| Engine Problems | 1 | — | 1 | — | |
| Engine And Engine Cooling:Exhaust System | 1 | — | — | — | |
| Headlight/Taillight Failures | 1 | — | — | — | |
| Exterior Lighting:Turn Signal | 1 | — | — | — | |
| Forward Collision Avoidance: Automatic Emergency Braking | 1 | — | — | — | |
| Fuel System, Gasoline:Storage:Tank Assembly | 1 | — | — | — | |
| Fuel System, Other | 1 | — | — | — | |
| Automatic Transmission | 1 | — | — | — | |
| Seats:Front Assembly:Seat Heater/Cooler | 1 | — | — | — | |
| Hydraulic Brakes | 1 | 1 | — | — | |
| Service Brakes, Hydraulic:Foundation Components:Disc | 1 | — | — | — | |
| Service Brakes, Hydraulic:Foundation Components:Drum | 1 | — | — | — | |
| Steering Defects | 1 | — | — | — | |
| Suspension Failures | 1 | — | — | — | |
| Tires:Sidewall | 1 | — | — | — | |
| Visibility:Windshield Wiper/Washer | 1 | — | — | — |
Search Owner Complaints
Read what owners actually reported to NHTSA for the 2004 Audi A6. Type a keyword (e.g. “transmission”, “stalling”, “brakes”) to filter.
Recalls for 2004 Audi A6
1 NHTSA recall campaign affecting ~5,992 vehicles.
VOLKSWAGEN IS RECALLING CERTAIN MODEL YEAR 2001-2004 AUDI A6, MODEL YEAR 2002-2003 S6 AND MODEL YEAR 2003 RS6 VEHICLES EQUIPPED WITH 4.2L ENGINES AND MANUFACTURED FROM JUNE 19, 2001, THROUGH JUNE 8, 2004. THE AGING OF THE PLASTIC MATERIAL IN THE FUEL TANK ROLLOVER VALVE COMBINED WITH BENDING STRESS FROM THE ALUMINUM VENTILATION LINE TO THE ROLLOVER VALVE NIPPLE MAY LEAD TO CRACKING OF THE NIPPLE. IF THIS HAPPENS, A FUEL LEAK MAY RESULT.
Other Audi A6 Years
2004 Audi A6 — FAQ
Answers based on real NHTSA complaint and recall data for this specific model year.
Is the 2004 Audi A6 reliable?
What are common problems with the 2004 Audi A6?
How safe is the 2004 Audi A6?
Does the 2004 Audi A6 have any recalls?
Should I buy a 2004 Audi A6?
Source: NHTSA (National Highway Traffic Safety Administration) complaint and recall databases, aggregated by VinItel.
Wider context: See the full Audi A6 reliability report with year-by-year comparison and generation analysis.
Check Your Specific 2004 Audi A6
Real owner complaints tell you about the model. The VIN tells you about your specific car — accidents, title issues, odometer fraud.
Check Any VIN — $4.99