What got replaced
Owners who name the part that was replaced mention the alternator (14 reports) and the battery (7 reports).
Recalls and investigations
3 recalls on the electrical system cover the 2019 model year. A recall on the same system isn't always the same failure, so read the defect text.
22V-861Nov 21, 2022
Electrical System
Volkswagen Group of America, Inc. (Audi) is recalling certain 2020-2022 Audi S7, S6 Sedan, A6 Allroad, 2021-2022 RS7, RS6 Avant, 2019-2022 A7, and A6 Sedan vehicles. Liquid spilled in the rear seat may penetrate and cause the gateway control module to shut down.
Risk and remedy
Risk: A gateway control module shutdown will suddenly reduce engine power, increasing the risk of a crash.
Remedy: Dealers will install a protective cover, free of charge. Owner notification letters are expected to be mailed January 20, 2023. Owners may contact Audi's customer service at 1-800-253-2834. Audi's number for this recall is 90V2.
22V-155Mar 14, 2022
Electrical System:Instrument Panel:Fuel Gauge:Fuel Level Float/Sensor/Sending Unit
Volkswagen Group of America, Inc. (Audi) is recalling certain 2021-2022 RS6 Avant and RS7, 2020-2022 A6 Allroad, S6 Sedan, and S7, and 2019-2022 A6 Sedan and A7 vehicles. The fuel level sender may stick, causing an inaccurate fuel level reading to be displayed on the instrument cluster.
Risk and remedy
Risk: An inaccurate fuel reading may cause an engine stall due to lack of fuel, increasing the risk of a crash.
Remedy: Dealers will install a new sensor in the tank, free of charge. Owner notification letters were mailed February 17, 2023. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 20DN.
20V-153Mar 19, 2020
Electrical System:Starter Assembly
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2019-2020 Audi A6 vehicles equipped with mild-hybrid technology and 2.0TFSI engines. Moisture may enter the starter generator and cause an electrical short circuit.
Risk and remedy
Risk: A short circuit in the starter generator increases the risk of a fire.
Remedy: Volkswagen will notify owners, and dealers will replace the starter generator, free of charge. The recall began by May 22, 2020. Owners may contact Volkswagen customer service at 1-800-893-5298. Volkswagen's number for this recall is 27H2.
NHTSA investigations into the electrical system on the A6
PE08-008opened Jan 31, 2008
Fuel system · model years 2001 to 2005
Fuel tank leak. Closed may 30, 2008, led to recall 08V-156.
NHTSA summary
VOLKSWAGEN (VW) IS RECALLING CERTAIN VW PASSAT 4MOTION AND AUDI A6 QUATTRO AND ALLROAD QUATTRO ALL-WHEEL DRIVE PASSENGER CARS.VW VEHICLES SUBJECT TO RECALL WERE MANUFACTURED FROM NOVEMBER 22, 2000 THROUGH MAY 31, 2005 AND AUDI VEHICLES SUBJECT TO RECALL WERE MANUFACTURED FROM JUNE 2, 2001 TO JUNE 1, 2005.THE NHTSA RECALL NUMBER FOR THE VW VEHICLES IS 08V-156 (VW ALSO IS CORRECTING DEFECTS RELATED TO HEAT SHIELD AND FUEL LINE HAZARDS FOR THESE VEHICLES AND FOR 1999-2000 PASSATS IN THIS RECALL ACTION.)THE NHTSA RECALL NUMBER FOR THE AUDI VEHICLES IS 08V-157.SINCE 2006, ODI HAS RECEIVED 17 COMPLAINTS OF FUEL LEAKING FROM THE SUBJECT VEHICLES' FUEL TANKS.THE 400 COMPLAINTS SHOWN ABOVE MAY INCLUDE DUPLICATE REPORTS TO ODI AND THE MANUFACTURER. WHILE THE CONSEQUENCE (FUEL LEAKS FROM THE TOP OF THE TANK) IS SIMILAR FOR BOTH THE PASSAT AND AUDI SUBJECT VEHICLES, DIFFERENCES IN DESIGN AND CONSTRUCTION REQUIRE A DIFFERENT REMEDY FOR EACH VEHICLE.ON THE PASSATS, THE VENTILATION LINE COULD HAVE BEEN INSTALLED IMPROPERLY WITH TENSION AND WITH AN INCORRECTLY POSITIONED CABLE TIE.THE TENSION COULD CAUSE CRACKED OR BROKEN NIPPLES ON THE FUEL TANK ROLLOVER VALVE.ON THE AUDI VEHICLES, A MATERIAL CHANGE (EFFECTIVE JUNE 2, 2001) WITH DIFFERENT AGING CHARACTERISTICS USED FOR THE ROLLOVER VALVE AND THE USE OF AN INFLEXIBLE ALUMINUM VENTILATION LINE COULD CAUSE CRACKING OF THE NIPPLE ON THE ROLLOVER VALVE.VW IS RECALLING ALL VEHICLES SUBJECT TO THESE DEFECTS.IT WILL INSPECT PASSATS TO ENSURE THAT T
RQ06-003opened Feb 27, 2006
Electrical · model years 1998 to 2000
Driver's side dash fire. Closed jul 20, 2006, led to recall 06V-198.
NHTSA summary
VOLKSWAGEN OF AMERICA, INC. (VOA) CONDUCTED A SAFETY RECALL (NHTSA RECALL NUMBER 04V133) TO ADD A PLASTIC COVER TO THE TOP SECTION OF THE KNEE BOLSTER CROSSMEMBER TO PREVENT CONTACT WITH THE HEADLIGHT SWITCH WIRING HARNESS.THE SCOPE OF THE ORIGINAL RECALL COVERED MODEL YEARS 1998 THROUGH 2004 WITH VEHICLE PRODUCTION DATES OF AUGUST 1997 THROUGH DECEMBER 2004.THE OFFICE OF DEFECTS INVESTIGATION HAS RECEIVED NINE COMPLAINTS ALLEGING THAT AFTER HAVING THE RECALL REMEDY PERFORMED, A FIRE STARTED IN THE DRIVER'S SIDE DASHBOARD AREA.VOA REPORTS THAT IF THE PLASTIC COVER IS NOT INSTALLED PROPERLY BY THE DEALERS, THE HEADLIGHT SWITCH WIRING HARNESS COULD CONTINUE TO CONTACT THE CROSSMEMBER, RESULTING IN A SHORT AND/OR FIRE IN THE DRIVER'S SIDE DASHBOARD AREA.VOA WILL CONDUCT A NEW SAFETY RECALL TO ADD AN ADDITIONAL (AND LARGER) COVER OVER BOTH THE KNEE BOLSTER CROSSMEMBER AND THE PLASTIC COVER ASSEMBLY INSTALLED IN THE FIRST RECALL.ALL OF THE NHTSA COMPLAINTS AND ALL BUT 3 VOA CLAIMS ARE FOR MY 1998 THROUGH MY 2000.VOA REPORTS THAT BEGINNING IN MY 2001, AUDI EXTENDED THE TIME FOR THE DEBURRING PROCESS OF THE CROSSMEMBER.VOA WAS NOT ABLE TO VERIFY THE CAUSE OF FIRE IN THE MY 2001 AND LATER VEHICLES DUE TO EITHER EXTENSIVE FIRE DAMAGE OR OTHER REASON.THE RATE OF FIRE OCCURRENCE IS SIGNIFICANTLY LESS FOR THE MY 2001 AND LATER VEHICLES. THE RECALL COVERS MODEL YEARS 1998 THROUGH 2000 WITH VEHICLE PRODUCTION DATES OF AUGUST 1997 THROUGH MAY 2000.VOA WILL RECALL 66358 MY 1998-2000 AUDI A6,
EA04-017opened Jun 30, 2004
Fuel system · model years 1998 to 1999
Stuck-open throttle. Closed feb 10, 2005, led to recall 04V-495.
NHTSA summary
VWOA HAS RECALLED APPROXIMATELY 28,300 MY 1998-99 A6 VEHICLES IN COLD WEATHER STATES THAT EXPERIENCED THE HIGHEST RATE OF THROTTLE ICING INCIDENTS IN THE SUBJECT VEHICLES (04V-495).THE FAILURE RATE IN THE A4 AND PASSAT VEHICLES IS MUCH LOWER THAN IN THE RECALLED VEHICLES.ODI WILL CONTINUE TO MONITOR THE EXPERIENCE IN THE A4 AND PASSAT VEHICLES.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT NO SAFETY-RELATED DEFECT EXISTS FOR THE AUDI A4 OR VW PASSAT VEHICLES.THE AGENCY RESERVES THE RIGHT TO TAKE FURTHER ACTION IF WARRANTED BY A CHANGE IN CIRCUMSTANCES. FOR FURTHER DETAILS SEE THE ATTACHED CLOSING REPORT.
PE04-023opened Mar 5, 2004
Fuel system · model years 1998 to 1999
Stuck-open throttle. Closed jun 30, 2004.
NHTSA summary
COMPLAINTS RECEIVED BY ODI AND AUDI ALLEGE THAT, IN EXTREME COLD WEATHER, THE THROTTLE MAY UNEXPECTEDLY FAIL TO RETURN TO IDLE WHEN THE ACCELERATOR PEDAL IS RELEASED, MAKING IT DIFFICULT TO STOP THE VEHICLE.IN MARCH OF 2004, AUDI PERFORMED A SERIES OF TESTS TO INVESTIGATE THE POSSIBLE CAUSES OF THROTTLE ICING.AUDI CONCLUDED THAT UNDER CERTAIN DRIVING CONDITIONS - ONLY SHORT DISTANCE TRIPS OVER SEVERAL WEEKS WHERE COOLANT TEMPERATURE REMAINS BELOW 70?C (158?F) - WATER MAY ACCUMULATE IN THE MOTOR OIL. WATER THAT HAS ACCUMULATED IN THE MOTOR OIL WILL EVAPORATE AFTER THE ENGINE OIL TEMPERATURE EXCEEDS 70?C (158?F) AND COULD, WITHIN 15 TO 20 MINUTES OF DRIVING AT A CONSTANT SPEED WITH AN OUTSIDE TEMPERATURE BELOW -20?C (-4OF), CAUSE ICE TO FORM IN THE THROTTLE BODY.ACCORDING TO AUDI, THIS CONDITION OCCURS AT RELATIVELY LOW THROTTLE SETTINGS AND RESULTS IN THROTTLE STICKING AT POSITIONS THAT CAN BE CONTROLLED BY BRAKING.DURING TYPICAL VEHICLE USAGE (MIXTURE OF SHORT AND LONG DISTANCE DRIVING) THIS PHENOMENON IS NOT EXPECTED TO OCCUR.THIS INVESTIGATION HAS BEEN UPGRADED TO AN ENGINEERING ANALYSIS.
EA03-025opened Nov 25, 2003
Electrical · model years 1999 to 2000
Drivers side dash fire. Closed may 7, 2004, led to recall 04V-133.
NHTSA summary
THE SUBJECT VEHICLES ARE EQUIPPED WITH A KNEE BOLSTER LOCATED UNDER THE DASH, NEAR THE DRIVERS KNEES.A WIRING HARNESS IS ALSO LOCATED IN THE DASH, IN THAT SAME AREA.AUDI'S ANALYSIS OF 39 VEHICLES INDICATED THAT THE KNEE BOLSTER WAS RUBBING AGAINST THAT WIRING HARNESS.OVER TIME THE HARNESS SHEATHING WEARS AWAY AND THE WIRES COME INTO CONTACT WITH THE METAL KNEE BOLSTER, RESULTING IN A FIRE. AUDI WILL CONDUCT A SAFETY RECALL ON AN EXPANDED SCOPE OF AUDI A6 VEHICLES, TO ADD A PLASTIC CAP TO THE TOP OF THE KNEE BOLSTER BRACKET, WHICH WILL PREVENT ABRASION TO THE WIRING HARNESS. AUDI WILL RECALL 186,000 MY 1998-2004 AUDI A6 VEHICLES.ODI IS AWARE OF A TOTAL OF 24 WARRANTY, FIELD AND CONSUMER REPORTS FOR THESE VEHICLES.THE RECALL IS IDENTIFIED BY NHTSA NUMBER 04V-133.
PE03-035opened Jul 25, 2003
Electrical · model years 1999 to 2000
Drivers side dashboard fire. Closed nov 25, 2003.
NHTSA summary
OF THE 22 TOTAL COMPLAINTS, 11 WERE RECEIVED FOR THE 1999 MODEL YEAR AND 11 FOR THE 2000 MODEL YEAR. AUDI IS CONDUCTING TESTING TO DETERMINE THE ORIGIN AND CAUSE OF THE FIRE.
None of these investigations covers the 2019 model year.