There are 2 stored owner reports matching the fuel system leading-label group for the 2008 Audi A6 in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 2 of 2 matching reports.
Open the full vehicle complaint log (all categories)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. *TR
TL* 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. THE FAILURE OCCURRED A SECOND TIME AND THE SAME REPAIR WAS MADE. THE FAILURE CONTINUED TO OCCUR. THE VEHICLE WAS TAKEN TO ANOTHER DEALER WHERE THE TECHNICIAN STATED THAT THE FAILURE WAS CAUSED BY THE FUEL MODULE. THE VEHICLE WAS NOT FURTHER REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 21,300.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Aug 31, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.