2008 Audi A6 Fuel system Problems
- Complaints
- 3about this part
- Share
- 4%of 71 total for the year
- Median mileage
- 21,300miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the fuel system of the 2008 Audi A6, 4% of the 71 complaints for this model year. Where a mileage was given, the median is 21,300 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I own a 2008 Audi A6 quattro which has 40k miles. Recently the check engine light came up and when I took it to the dealer they mentioned that the engine cylinder is misfiring because of carbon deposits. The dealer said that the car is not meant for nj driving, it is meant to be driven in the autobahn. Dealership provided a fuel additive and said that things should be fine. This is not acceptable for a car that is in warranty.”
NHTSA complaint #10382764, filed 2011-02, 42,000 miles“I leased a 2008 Audi A6, less then a year ago. Audi has had my car now 3 times for a problem with the intake valves and carbon deposits. They have been unable to fix the problem and refuse to admit there is a problem with the car. It has been in the shop over the past 6 months for 15 days. I have had to continue paying for the car when it is un-drivable. I also paid for Audi care upfront when I leased the car, and the level of care is pathetic. On the Audi forums, there are many A6 and a4 owners having the same problem. This should be a federal recall. …”
NHTSA complaint #10282073, filed 2009-08, 9,892 miles“The contact owns 2008 Audi A6. The contact was driving approximately 45 MPH when the vehicle stalled without warning. The contact applied pressure to the accelerator but the vehicle continued to run as if the gear was in neutral. After continually applying pressure to the accelerator, the vehicle was able to accelerate and the contact was able to drive the vehicle normally. The failure occurred multiple times intermittently. The vehicle was taken into the dealer where the technician stated that the software patch would need to be repaired. The vehicle was repaired. …”
NHTSA complaint #10372041, filed 2010-12, 21,300 milesRelated service bulletins
- 10231590Feb 6, 2023This bulletin contains instructions for when to add gasoline additives for cleaning the injectors.
- 10173838Apr 1, 2020This bulletin contains instructions for when to add gasoline additives for cleaning the injectors.
- 10172594Mar 6, 2020This bulletin contains instructions for when to add gasoline additives for cleaning the injectors.
- 10164512Aug 30, 2019This informational bulletin explains when the range display is empty in the on-board computer. Also A3 Cabriolet 2015-2021, A3 Sportback 2016-2018, 2005 A4 Cabriolet , 2005-2009…
- 10123656Dec 10, 2015Supersedes Technical Service Bulletin Group 20 number 13-29 dated November 15, 2013. The fuel tank has been removed from the vehicle and must be neutralized before shipment or…
- 10123653Dec 10, 2015Supersedes Technical Service Bulletin Group 17 number 14-49 dated April 3, 2014. When the vehicle is completely refueled, the vehicle range (?distance to empty?) that is…
Fuel system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 2 | 29% |
| 2025 | 1 | 17% |
| 2021 | 1 | 6% |
| 2020 | 1 | 4% |
| 2019 | 2 | 2% |
| 2018 | 4 | 36% |
| 2016 | 9 | 18% |
| 2015 | 2 | 9% |
| 2014 | 8 | 20% |
| 2013 | 8 | 15% |
| 2012 | 11 | 18% |
| 2008 | 3 | 4% |
| 2007 | 2 | 4% |
| 2006 | 1 | 1% |
| 2004 | 9 | 26% |
| 2003 | 21 | 32% |
| 2002 | 15 | 17% |
| 2001 | 19 | 17% |
| 2000 | 23 | 16% |
| 1999 | 39 | 18% |
| 1998 | 35 | 27% |
| 1997 | 1 | 5% |
Other parts of the 2008 Audi A6
49 complaintsElectrical system
7 complaintsExterior lighting
6 complaintsEngine cooling
3 complaintsTransmission and drivetrain
3 complaintsBrakes
2 complaintsEngine
2 complaintsSeat belts
2 complaintsElectronic stability control
1 complaintsVehicle speed control
1 complaints
← All problems reported for the 2008 Audi A6
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology