There are 5 owner-reported electrical system complaints for the 2016 Audi A6in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
Engine area of car caught fire with ignition off
The contact owns a 2016 Audi A6. The contact stated that while driving approximately 40 MPH, the vehicle suddenly experienced a loss of motive power and stalled. During the failure, the message Electric Power Control "EPC" was displayed. The vehicle was later towed to the local dealer who diagnosed that the electric wiring harness located in the engine compartment had failed due to moisture intrusion and the harness along with an internal computer needed to be replaced. No further information was available. The vehicle was not yet repaired. The failure mileage was 49,000.
OK PURCHASED THE CAR OCTOBER 2019, IMMEDIATELY NOTICED A BURNING SMELL, IN THE CAR. TOOK OUT TO AUDI MULTIPLE TIMES ASK IF THERE WAS A LEAK, BEFORE THE WARRANTY RAN OUT. THEY SAID NO, NOW A YEAR LATER MY CHECK ENGINE LIGHT HAS COME ON. ONE DIAGNOSTIC DONE AT JIFFY LUBE READ A CODE THAT SAYS IT IS THE COMPUTER AUXILIARY OUTPUT. TOOK THE CAR TO AUDI TO DO A SECOND DIAGNOSTIC, THEY SAID ITS THE THERMOSTAT, AND COOLANT PUMP. MY CAR IS NOT EVER HEATING AND THE HEAT AND AIR WORK FINE. HOW IS IT NOW THAT THE CAR IS NOT UNDER WARRANTY THEY NOTICE THE LEAK IN THE COOLANT PUMP, WHEN I COMPLAINED ABOUT THE SMELL OF BURNING WATER WHEN I FIRST PURCHASED THE CAR. THERE ARE NO INDICATIONS OF A LEAK ON MY DRIVEWAY. THE DEALERSHIP HAS QUOTED ME 1683.00 THOUGH THERE IS A RECALL ON THE SAME PARTS. A YEAR AGO WHEN I PURCHASED THE CAR THERE WERE FAULTY ISSUES WITH THE COMPUTER. AUDI DID REPLACE THIS UNDER WARRANTY, BUT A MONTH AGO THE COMPUTER WOULD NOT COME ON SEVERAL DIFFERENT TIMES. CALLED THE DEALERSHIP TOLD THEM IT WAS ON AND OFF THEY SAID TO BRING IN IF IT CONTINUES. SOON AFTER THE CHECK ENGINE LIGHT COMES ON, AND NOW ALL OF A SUDDEN ITS A LEAK IN THE COOLANT PUMP ALLEGEDLY. I REPEATEDLY ASKED THEM IF THE CA HAD A LEAK WHEN I FIRST BOUGHT IT ONLY BECAUSE THE ENGINE WAS GIVING OFF THE BURNT SMELL. THEY WAITED UNTIL THE CAR WAS OUT OF WARRANTY TO AGREE WITH ME. THERE IS A RECALL TO FIX THE COOLANT PUMPS ON THE AUDI BUT THEY ARE WANTING TO CHARGE ME TO REPAIR MINE. RIGHT NOW THE VEHICLE SHUT OFF ON ME TONIGHT AND THE EPC LIGHT IS ON. CAR WILL NOT START, NOR WOULD THE ENGINE RECEIVE THE GAS WHEN TRYING TO ACCELERATE. ONLY BEEN DRIVING THE VEHICLE FOR A YEAR, I SHOULD NOT HAVE MAJOR ISSUES WITH IT AS OF NOW.
GOT A WARNING LIGHT THAT ADAPTIVE CRUISE AND BRAKING WERE NOT AVAILABLE. ACCORDING TO THE SERVICE DEPT. THERE WAS A SEAM IN THE BODY THAT WAS NOT WELDED PROPERLY IN THE MANUFACTURING PROCESS. I HAVE 6500 MILES ON MY CAR. THEY SAID THAT WATER WAS LEAKING IN ON ELECTRICAL MODULES. THIS PROBLEM HAPPENS WHILE DRIVING.
VEHICLE STUMBLES AND CUTS OFF AT A FEW MOMENTS OF IDLING. IT HAS ALSO LOST POWER AND THE GAINED IT BACK MOMENTS LATER AT RAPID PACE.
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