There are 5 owner-reported engine complaints for the 2005 Audi A6in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
TIMING CHAIN BROKE WHILE DRIVING HOME PARKED CAR IMMEDIATELY.
ENGINEERING FLAW LEAD TO EXTRAORDINARY EXPENSE REPLACING THE ENTIRE STEERING COLUMN INSTEAD OF JUST THE MODULE THAT FAILED. DOING SOME REVIEWS ON-LINE - SEEMS TO BE A WELL KNOWN AND COMMON PROBLEM BUT AUDI DOES NOT WANT TO DO ANYTHING ABOUT IT - HTTP://WWW.AUDIWORLD.COM/FORUMS/A6-S6-C6-PLATFORM-DISCUSSION-58/TRANSPONDER-STEERING-COLUMN-2834070/ MILLAGE LISTED AS APPROX SINCE CAR IS IN THE SHOP NOW.
CAR STUTTERING. DEPRESSES THROTTLE TO ATTEMPT TO ALLEVIATE PROBLEM. GAS PEDAL STUCK AT FULL ACCELERATION AND MAXIMUM RPM. SET CAR INTO NEUTRAL AND COASTED TO DECELERATE. AFTER NUMEROUS ATTEMPTS TO DISENGAGE ACCELERATOR PEDAL, IT FINALLY SPRUNG BACK FROM FULL THROTTLE. *TR
DRIVING 55 MPH ON THE EXPRESS WAY AND THE ENGINE SHUT OFF COMPLETELY. THE CAR STALLED UNTIL IT CAME TO A COMPLETE STOP. THE ESP LIGHT AND ENGINE LIGHT CAME ON. RESTARTED THE CAR AND PROBLEM CONTINUE 4 TIMES. AFTER THE 4TH ATTEMPT, I MANAGED TO GET THE CAR TO THE SIDE OF THE ROAD. AFTER WAITING SEVERAL MINUTES, I RESTARTED THE CAR. THE CAR STILL FEEL AT TIMES AS IF ITS GOING TO STALL. *TR
ON 1/25/2007 CAR WAS COLD IN GARAGE. WOULD NOT START ON FIRST OR SECOND ATTEMPTS. ON THIRD ATTEMPT THE CAR TURNED OVER BUT THE EPC LIGHT ILLUMINATED AND THE ENTIRE VEHICLE WAS HEAVILY SHAKING AND ROCKING BACK AND FORTH. NO POWER TO DRIVE THE VEHICLE. HAD IT TOWED TO THE DEALERSHIP (SCHAUMBURG AUDI). DEALER SAID THE COMPUTER RECORDED MULTIPLE CYLINDER MISFIRES BUT THAT THERE WAS NOTHING ELSE THEY COULD FIND WRONG. CAR WAS KEPT OVERNIGHT AND RETURNED TO ME WHEN NO FURTHER PROBLEMS COULD BE FOUND AND THE EVENT COULD NOT BE REPLICATED. NOTHING WAS ACTUALLY REPAIRED AND NO PARTS REPLACED. *JB
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.
Data synced from NHTSA on Apr 26, 2026