NHTSA owner reports · September 18, 2026 snapshot.
Engine And Engine Cooling complaints
15 reportsClear category filterMileage unknown · Oct 19, 2011
Electrical SystemEngine And Engine CoolingFuel System, Gasoline
MY CHECK ENGINE LIGHT IS MARKING MISFIRE BUT I HAVE GOTTEN A COMPLETE TUNE-UP, CHANGED ALL 6 COILS ON THE ENGINE CHANGED ALL THE SPARK PLUGS, I'VE DONE EVERYTHING POSSIBLE AND CHANGED EVERYTHING I CAN THAT HAS TO DO WITH THE ENGINE ALL BRAND NEW AND NOTHING HAS WORKED AND ITS STILL SAYING MISFIRE...I'VE GOOGLED THIS PROBLEM FOR …
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MY CHECK ENGINE LIGHT IS MARKING MISFIRE BUT I HAVE GOTTEN A COMPLETE TUNE-UP, CHANGED ALL 6 COILS ON THE ENGINE CHANGED ALL THE SPARK PLUGS, I'VE DONE EVERYTHING POSSIBLE AND CHANGED EVERYTHING I CAN THAT HAS TO DO WITH THE ENGINE ALL BRAND NEW AND NOTHING HAS WORKED AND ITS STILL SAYING MISFIRE...I'VE GOOGLED THIS PROBLEM FOR AUDI'S AND THERE WERE SO MANY PEOPLE COMPLAINING ABOUT THE SAME THING... ALSO, I AM HAVING A PROBLEM WITH THE ELECTRICAL SYSTEM AS WELL ONE DAY MY WINDOWS WORK THE NEXT IT DOESN'T SOMETIMES MY LIGHTS WILL WORK AND SOMETIMES IT DOESN'T, SOMETIMES MY RADIO WILL WORK SOME TIMES IT DOESN'T, THE INFORMATION ON MY DASH SOMETIMES DOESN'T LIGHT UP AND I CAN'T SEE ANYTHING AT NIGHT TIME, I HAVE CONSTANTLY BEEN TO THE MECHANICS TRYING TO FIGURE OUT WHAT'S GOING ON BUT WE CAN'T FIND THE PROBLEM, I'VE SPENT SO MUCH MONEY ON THIS CAR TRYING TO FIX THE PROBLEMS BUT ITS REALLY MAKING IT HARD FOR ME TO KEEP SPENDING MONEY ON MY CAR AND NOT BEING ABLE TO FIGURE OUT WHAT'S WRONG WITH IT. THIS IS VERY DANGEROUS BECAUSE IF I'M DRIVING AT NIGHT TIME AND MY LIGHTS END UP NOT WORKING I CAN CAUSE A VERY BIG ACCIDENT I AM VERY VERY CONCERNED ABOUT THESE DEFECTS, MY SAFETY AND OTHERS SAFETY AND WOULD REALLY APPRECIATE IF YOU CAN PLEASE INVESTIGATE THIS PROBLEM BECAUSE ITS HAPPENED TO SO MANY PEOPLE. I ALSO THINK SOMETHING IS WRONG WITH THE FUEL SYSTEM I'LL PUT $60 IN GAS AND TWO DAYS LATER IT'LL ALMOST MARK EMPTY I REALLY DON'T UNDERSTAND HOW THAT IS POSSIBLE BUT IF THERE'S AN ANSWER I WOULD REALLY WANT TO KNOW. THANK YOU SO MUCH AND I REALLY APPRECIATE YOUR TIME. *TR
NHTSA ODI #10430871
103,000 miles · Apr 5, 2011
Engine And Engine Cooling
TL* THE CONTACT OWNS A 2002 AUDI A6 QUATTRO. THE CONTACT STATED THAT THE VEHICLE WAS TAKEN TO THE DEALER FOR REPAIRS TO THE IGNITION COIL UNDER AN UNKNOWN RECALL. THE DEALER PERFORMED A DIAGNOSTIC AND ADVISED THAT THE CATALYTIC CONVERTER WAS FAILING. THE MANUFACTURER WAS CONTACTED AND ADVISED THAT BECAUSE OF THE MILEAGE AND AGE …
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TL* THE CONTACT OWNS A 2002 AUDI A6 QUATTRO. THE CONTACT STATED THAT THE VEHICLE WAS TAKEN TO THE DEALER FOR REPAIRS TO THE IGNITION COIL UNDER AN UNKNOWN RECALL. THE DEALER PERFORMED A DIAGNOSTIC AND ADVISED THAT THE CATALYTIC CONVERTER WAS FAILING. THE MANUFACTURER WAS CONTACTED AND ADVISED THAT BECAUSE OF THE MILEAGE AND AGE OF THE VEHICLE, THEY WERE UNABLE TO OFFER ANY ASSISTANCE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 103,000.
NHTSA ODI #10394322
99,370 miles · Feb 17, 2011
Engine And Engine Cooling
TL*THE CONTACT OWNS A 2002 AUDI A6. WHILE THE VEHICLE WAS BEING INSPECTED FOR EMISSIONS 01/10/2011, THE CONTACT WAS INFORMED THAT THE ENGINE WAS MISFIRING DUE TO A DEFECTIVE COIL. THE FAILURE LED TO DAMAGE TO THE CATALYTIC CONVERTER WHICH NEEDED TO BE REPLACED ALONG WITH THE COIL. THE LOCAL AUTHORIZED DEALER REPLACED THE COIL. T…
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TL*THE CONTACT OWNS A 2002 AUDI A6. WHILE THE VEHICLE WAS BEING INSPECTED FOR EMISSIONS 01/10/2011, THE CONTACT WAS INFORMED THAT THE ENGINE WAS MISFIRING DUE TO A DEFECTIVE COIL. THE FAILURE LED TO DAMAGE TO THE CATALYTIC CONVERTER WHICH NEEDED TO BE REPLACED ALONG WITH THE COIL. THE LOCAL AUTHORIZED DEALER REPLACED THE COIL. THE CONTACT CALLED THE MANUFACTURER WHO OFFERED NO ASSISTANCE. THE CONVERTER WAS NOT REPLACED. THE FAILURE MILEAGE WAS 99,370 AND THE CURRENT MILEAGE WAS 99,410.
NHTSA ODI #10383128
90,476 miles · Dec 1, 2010
Engine And Engine Cooling
TL*THE CONTACT OWNS A 2002 AUDI A6. THE VEHICLE WAS TAKEN TO THE DEALERSHIP ON JUNE 4, 2010 FOR THE MANUFACTURERS VOLUNTARY COIL SPRING RECALL; HOWEVER, THE DEFECTED COIL SPRINGS CAUSED THE CATALYTIC CONVERTER TO FAIL. THE CATALYTIC CONVERTER WAS REPLACED; AND THE COIL SPRING REPAIR DIDN'T CORRECT THE FAILURE. THE VEHICLE LOST …
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TL*THE CONTACT OWNS A 2002 AUDI A6. THE VEHICLE WAS TAKEN TO THE DEALERSHIP ON JUNE 4, 2010 FOR THE MANUFACTURERS VOLUNTARY COIL SPRING RECALL; HOWEVER, THE DEFECTED COIL SPRINGS CAUSED THE CATALYTIC CONVERTER TO FAIL. THE CATALYTIC CONVERTER WAS REPLACED; AND THE COIL SPRING REPAIR DIDN'T CORRECT THE FAILURE. THE VEHICLE LOST POWER WHILE ATTEMPTING TO ACCELERATE. THE VEHICLE WAS TAKEN TO A LOCAL MECHANIC WHO LOCATED THE FAILURE AS THE VEHICLES SIX ENGINE CYLINDER. THE MANUFACTURER WAS CONTACTED ADVISED THE CONTACT THAT THEY WOULD NOT REIMBURSE HIM FOR THE CATALYTIC CONVERTER. THE VEHICLE WASN'T REPAIRED. THE FAILURE MILEAGE WAS 90,476 AND THE CURRENT MILEAGE WAS 93,400.
NHTSA ODI #10368493
127,254 miles · Mar 4, 2010
Engine And Engine Cooling
DRIVING ON HIGHWAY WHEN ENGINE STARTED RUNNING VERY ROUGH, ENGINE LIGHT CAME ON. STOPPED AND CONSULTED MANUAL REGARDING ENGINE LIGHT, SAID TO DRIVE AT REDUCED SPEED TO AUDI DEALER. ENGINE RAN ROUGH, FLOOR OF CAR HEATED UP, SMOKE AND ODOR STARTED COMING FROM EXHAUST. DEALER HAD TO REPLACE IGNITION COILS, CATALYTIC CONVERTER AND …
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DRIVING ON HIGHWAY WHEN ENGINE STARTED RUNNING VERY ROUGH, ENGINE LIGHT CAME ON. STOPPED AND CONSULTED MANUAL REGARDING ENGINE LIGHT, SAID TO DRIVE AT REDUCED SPEED TO AUDI DEALER. ENGINE RAN ROUGH, FLOOR OF CAR HEATED UP, SMOKE AND ODOR STARTED COMING FROM EXHAUST. DEALER HAD TO REPLACE IGNITION COILS, CATALYTIC CONVERTER AND O2 SENSOR. CONSEQUENCES: CAR BECAME INTEROPERABLE AND EXTREME TOXIC AIR POLLUTION. *TR
NHTSA ODI #10316904
122,124 miles · Feb 22, 2009
Engine And Engine Cooling
ON 02/21/09 I PURCHASE A 2002 AUDI A6 3.0 IN FREDERICK, MARYLAND FOR THE AMOUNT OF 5,808.00. I DROVE BACK THE VEHICLE TO SELINSGROVE, PA I ALMOST DID NOT MAKE IT. I NOTICED A LOTS OF WHITE SMOKE COMING FROM THE EXHAUST SYSTEM AND THE CAR WAS SHAKEN REALLY HARD. I PULLED OVER CAUSE THE CHECK ENGINE LIGHT CAME ON. THEN I HAS TO …
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ON 02/21/09 I PURCHASE A 2002 AUDI A6 3.0 IN FREDERICK, MARYLAND FOR THE AMOUNT OF 5,808.00. I DROVE BACK THE VEHICLE TO SELINSGROVE, PA I ALMOST DID NOT MAKE IT. I NOTICED A LOTS OF WHITE SMOKE COMING FROM THE EXHAUST SYSTEM AND THE CAR WAS SHAKEN REALLY HARD. I PULLED OVER CAUSE THE CHECK ENGINE LIGHT CAME ON. THEN I HAS TO GET OUT OF THE ROAD 11/15 AS SOON AS POSSIBLE SO I ONLY COULD DRIVE 40 MILES PER HOUR OR THE CAR WILL SHAKE MORE. I PURCHASED THE VEHICLE WITH A PERSONAL CHECK. I WANT THIS VEHICLE BACK TO THE DEALER AS SOON AS POSSIBLE. I DO NOT WANT IT . CAN I CANCEL THE CHECK? I HAVE A SENIOR BANK ACCOUNT AND I WROTE THE CHECK FOR $5,808.00 TO SOUTH STREET AUTO SALES IN FREDERICK, MARYLAND. I WILL WRITE A REVIEW ONLINE TO CONSUMERS ABOUT THE BAD BUSINESS OF THIS DEALERSHIP. *TR
NHTSA ODI #10259604
63,000 miles · Mar 4, 2008
Electrical SystemEngine And Engine Cooling
2002 AUDI A6 WITH A BELT FAILURE. CONSUMER STATES THAT HE DID RESEARCH ABOUT THIS FAILURE AND FOUND OUT OTHER PEOPLE HAVE HAD THE PROBLEM TOO. HE STATED THAT WHEN THE WATER PUMP AND THERMOSTAT WAS REPLACED OR FIXED THE TIMING BELT WAS NOT. *KB THE CONSUMER STATED HIS ENGINE OVERHEATED AND SMOKE BEGAN TO EMIT FROM THE ENGINE. T…
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2002 AUDI A6 WITH A BELT FAILURE. CONSUMER STATES THAT HE DID RESEARCH ABOUT THIS FAILURE AND FOUND OUT OTHER PEOPLE HAVE HAD THE PROBLEM TOO. HE STATED THAT WHEN THE WATER PUMP AND THERMOSTAT WAS REPLACED OR FIXED THE TIMING BELT WAS NOT. *KB THE CONSUMER STATED HIS ENGINE OVERHEATED AND SMOKE BEGAN TO EMIT FROM THE ENGINE. THE CONSUMER WAS INFORMED THE WATER PUMP TO THE COOLANT WASN'T FUNCTIONING PROPERLY. PRIOR TO THE INCIDENT, THE CHECK ENGINE LIGHT ILLUMINATED, FAULTY COILS WERE REPLACED AND THE VEHICLE HAD A LEAKING COOLANT BOTTLE. *JB
NHTSA ODI #10220593
82,000 miles · Nov 26, 2007
Engine And Engine Cooling
TL*THE CONTACT OWNS A 2002 AUDI A6. WHILE DRIVING 25 MPH, THE ENGINE SHUT OFF WITHOUT WARNING. THE VEHICLE WAS RESTARTED AFTER FOUR ATTEMPTS. THERE WERE NO WARNING INDICATOR LIGHTS UNTIL AFTER THE VEHICLE RESTARTED. THE ESP WARNING INDICATOR LIGHT ILLUMINATED. THE VEHICLE IS CURRENTLY AT THE DEALER. THE CURRENT AND FAILURE…
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TL*THE CONTACT OWNS A 2002 AUDI A6. WHILE DRIVING 25 MPH, THE ENGINE SHUT OFF WITHOUT WARNING. THE VEHICLE WAS RESTARTED AFTER FOUR ATTEMPTS. THERE WERE NO WARNING INDICATOR LIGHTS UNTIL AFTER THE VEHICLE RESTARTED. THE ESP WARNING INDICATOR LIGHT ILLUMINATED. THE VEHICLE IS CURRENTLY AT THE DEALER. THE CURRENT AND FAILURE MILEAGES WERE 82,000.
NHTSA ODI #10209928
Mileage unknown · Oct 17, 2007
Engine And Engine Cooling
I AM CONCERNED WITH THE SAFETY INVOLVED WITH THE CATALYTIC CONVERTER ON MY AUDI A6. MY CHECK ENGINE LIGHT APPEARED AND I TOOK IT INTO MY LOCAL MECHANIC WHO SHOWED THE FAULT AS THE CATALYTIC CONVERTER. I THEN TOOK MY VEHICLE TO THE LOCAL AUDI DEALER WHERE THEY INSISTED IT WAS THE OXYGEN SENSOR. I THEN HAD THIS REPLACED AND AUDI…
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I AM CONCERNED WITH THE SAFETY INVOLVED WITH THE CATALYTIC CONVERTER ON MY AUDI A6. MY CHECK ENGINE LIGHT APPEARED AND I TOOK IT INTO MY LOCAL MECHANIC WHO SHOWED THE FAULT AS THE CATALYTIC CONVERTER. I THEN TOOK MY VEHICLE TO THE LOCAL AUDI DEALER WHERE THEY INSISTED IT WAS THE OXYGEN SENSOR. I THEN HAD THIS REPLACED AND AUDI VERIFIED THAT EVERYTHING WAS CORRECT. ONCE AGAIN MY CHECK ENGINE LIGHT APPEARED 200 MILES LATER AND I TOOK THE VEHICLE BACK TO THE AUDI DEALER. I REQUESTED THAT THEY CHECK THE CATALYTIC CONVERTER AGAIN AND THEY INSISTED THAT IT WAS ONCE AGAIN THE OXYGEN SENSOR. THE WARRANTY ON THIS PART IS APPROACHING THE END. I ASKED, "IF THIS IS ONCE AGAIN REPLACED AND THE LIGHT COMES ON AGAIN IN A COUPLE HUNDRED MILES, MY WARRANTY WILL BE UP, WILL YOU COVER IT? THEIR RESPONSE WAS, "IF IT IS ONE MILE PAST THE WARRANTY, WE DON'T HAVE TO COVER IT." FROM THIS COMMENT ONE WOULD CONCLUDE THEY ARE GIVING ME THE RUN AROUND UNTIL MY WARRANTY IS UP SO THEY WILL NOT BE HELD RESPONSIBLE. MY CONCERN IS THAT AUDI IS FAILING TO COMPLY WITH A FEDERALLY MANDATED WARRANTY. THEY SIMPLY DO NOT WANT TO REPLACE THE CONVERTER WHICH IS PLACING MY LIFE IN DANGER CONSIDERING A CAR CAN CATCH ON FIRE IF THE CATALYTIC CONVERTER IS NOT WORKING PROPERLY. *JB
NHTSA ODI #10206150
107,000 miles · Apr 26, 2007
Engine And Engine Cooling
MY ENGINE FAILED WHILE DRIVING AT 35 MPH ON ROUTE 375 IN WOODSTOCK, NY. THE FAILURE WAS A RESULT OF ASSEMBLY BOLTS ON THE REVERSE SIDE OF THE EXHAUST CAM SHAFT VARIABLE VALVE TIMING SPROCKET LOOSENING AND FALLING OUT AGAINST THE CYLINDER HEAD, STALLING THE THE CAMSHAFT AND BREAKING THE TIMING BELT. INSPECTION OF BOLTS SHOW NEITH…
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MY ENGINE FAILED WHILE DRIVING AT 35 MPH ON ROUTE 375 IN WOODSTOCK, NY. THE FAILURE WAS A RESULT OF ASSEMBLY BOLTS ON THE REVERSE SIDE OF THE EXHAUST CAM SHAFT VARIABLE VALVE TIMING SPROCKET LOOSENING AND FALLING OUT AGAINST THE CYLINDER HEAD, STALLING THE THE CAMSHAFT AND BREAKING THE TIMING BELT. INSPECTION OF BOLTS SHOW NEITHER A LOCK WASHER OR THREAD LOCK ADHESIVE WERE PRESENT TO PREVENT THE LOOSENING DUE TO HEATING AND COOLING OR VIBRATION. FURTHER SERVICE OF BOLTS CANNOT BE PERFORMED AS THERE ARE NO TIGHTENING SPECIFICATION FOR THESE BOLTS. AN EASY FIX FOR THIS MECHANICAL FAILURE WOULD BE TO REMOVE BOTH VALVE COVERS AND REPLACE THE BOLTS ON THE TIMING GEAR SPROCKETS WITH NEW BOLTS WITH ADHESIVE ON THE THREADS. THIS IS AN INTERFERENCE ENGINE, WHICH RESULTS IN A CATASTROPHIC FAILURE IN THE BENDING OF VALVES AND TOTAL ENGINE DESTRUCTION. *TR
NHTSA ODI #10188943
Official recalls
4May 3, 2011
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.
Consequence & remedy
Consequence: A FUEL LEAK IN THE PRESENCE OF AN IGNITION SOURCE COULD LEAD TO A VEHICLE FIRE.
Remedy: DEALERS WILL REINFORCE THE NIPPLE ON THE ROLLOVER VALVE TO PREVENT LEAKAGE OR REPAIR THE CRACKING AT THE NIPPLE. THE RECALL IS EXPECTED TO BEGIN DURING JUNE 2011. OWNERS MAY CONTACT AUDI AT 1-800-822-2834.
Apr 8, 2008
VOLKSWAGEN IS RECALLING 68,240 MY 2001-2004 AUDI A6 QUATTRO VEHICLES EQUIPPED WITH 2.7L, 2.8L, OR 3.0L ENGINES AND MY 2001-2005 ALLROAD QUATTRO VEHICLES EQUIPPED WITH 2.7L OR 4.2L ENGINES. 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.
Consequence & remedy
Consequence: A FUEL LEAK IN THE PRESENCE OF AN IGNITION SOURCE COULD LEAD TO A VEHICLE FIRE.
Remedy: DEALERS WILL REINFORCE THE NIPPLE ON THE ROLLOVER VALVE TO PREVENT LEAKAGE OR REPAIR THE CRACKING AT THE NIPPLE. THE RECALL BEGAN ON JUNE 27, 2008. OWNERS MAY CONTACT AUDI AT 1-800-822-2834.
Jun 5, 2006
ON CERTAIN PASSENGER VEHICLES EQUIPPED WITH HALOGEN LOW BEAM HEADLIGHTS, CERTAIN CONNECTOR PINS IN THE HEADLIGHT SWITCH CONNECTOR COME INTO CONTACT WITH EACH OTHER CAUSING A SHORT CIRCUIT. NOTE: VEHICLES WITH XENON LOW BEAM HEADLIGHTS ARE NOT AFFECTED BECAUSE THE CIRCUIT IN THESE VEHICLES CONTAINS A FUSE, WHICH PRECLUDES EXCESSIVE CURRENT FLOW IN THE CASE OF A SHORT CIRCUIT. AUDI S6 AND S6 AVANT VEHICLES ARE ALL EQUIPPED WITH XENON LOW BEAM HEADLIGHTS AND, THEREFORE, ARE NOT LONGER AFFECTED BY THIS RECALL.
Consequence & remedy
Consequence: THIS CONDITION COULD LEAD TO OVERHEATING OR FIRE.
Remedy: DEALERS WILL REROUTE THE WIRING HARNESS BY INSTALLING A JUMPER WIRING HARNESS. THE RECALL BEGAN ON DECEMBER 16, 2006. OWNERS MAY CONTACT AUDI AT 1-800-822-2834.
Mar 18, 2004
ON CERTAIN PASSENGER VEHICLES, IF A DRIVER'S KNEES PUSH AGAINST THE KNEE BOLSTER (CRASH ELEMENT) LOCATED UNDER THE DASHBOARD, IT CAN CONTACT THE HEADLIGHT SWITCH WIRING HARNESS, AND AN ELECTRICAL SHORT COULD OCCUR.
Consequence & remedy
Consequence: A FIRE COULD ORIGINATE IN THE LEFT DASHBOARD AREA.
Remedy: DEALERS WILL INSTALL A PROTECTIVE COVERING ON THE KNEE BOLSTER (CRASH ELEMENT). IN ADDITION, THE WIRING HARNESS AS WELL AS THE FELT PROTECTOR ON THE LEFT SIDE OF THE DASHBOARD CARRIER WILL BE CHECKED, AND REPLACED IF NECESSARY. THE RECALL BEGAN ON JULY 26, 2004. OWNERS SHOULD CONTACT AUDI AT 1-800-822-2834.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗