IllustrationTIMING CHAIN BROKE WHILE DRIVING HOME PARKED CAR IMMEDIATELY.
2005 Audi A6
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2005 Audi A6 do not stand out strongly from the model-year median of 35.
About this comparison →How this year compares
Owner complaints by model year
Compare all A6 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
50–25K
725–50K
1250–75K
475–100K
22100–150K
2150K+
52 reports with mileage · 39 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Air Bags. Review the 43 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 16 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Steering. Review the 8 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
1 crash reports2 fire reports1 injury reports
Engine complaints
4 reportsVERY COMMON PROBLEM - "IGNITION MODULE DEFECTIVE" CODE AT 190,000 MILES. TEMPORARY REPAIR OF THE ISSUE WITH DTC RESET. FULL LOGGING OF CAR DATA VIA OBD-II PORT REVEALS ZERO FAULTS WHILE CAR IS RUNNING, AND DIAGNOSTIC TRAFFIC ON THE CAN BUS AT STARTUP SHOW ZERO FAULTS. ONCE KEY IS INSERTED IN DASH AND TURNED TO "ACCESSORY", MO…
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VERY COMMON PROBLEM - "IGNITION MODULE DEFECTIVE" CODE AT 190,000 MILES. TEMPORARY REPAIR OF THE ISSUE WITH DTC RESET. FULL LOGGING OF CAR DATA VIA OBD-II PORT REVEALS ZERO FAULTS WHILE CAR IS RUNNING, AND DIAGNOSTIC TRAFFIC ON THE CAN BUS AT STARTUP SHOW ZERO FAULTS. ONCE KEY IS INSERTED IN DASH AND TURNED TO "ACCESSORY", MODULE FAULTS OUT WITHOUT ANY TRAFFIC SENT/RECEIVED. HAPPENS INTERMITTENTLY AND DEALERSHIP STATES THIS IS A KNOWN PROBLEM. DEALERSHIP-ONLY REPAIR, PER MULTIPLE AUDI SERVICE TECHNICIANS, AUDI OF AMERICA REFUSES TO COMPLY WITH MASSACHUSETTS RIGHT TO REPAIR LAW BY MAKING AVAILABLE TO INDEPENDENT REPAIR SHOPS, THE NECESSARY TOOLS AND EQUIPMENT TO ACCESS THE IMMOBILIZER HARDWARE. DEALER ESTIMATES/QUOTES RANGE FROM $2100-$3700 TO REPLACE ENTIRE STEERING COLUMN WITH THE ATTACHED AND SEPARABLE IGNITION MODULE (ACCESSIBLE VIA 2 SCREWS AND 1 RIVET). DEALERSHIPS REFUSE TO REPLACE/RE-CODE ONLY THE IGNITION MODULE, STATING THE ENTIRE STEERING COLUMN NEEDS REPLACED. MULTIPLE REPORTS OF THE SAME ISSUE WITH OTHER C6 BODY AUDI A6 OWNERS CONFIRM THE SAME DETAILS. NOTHING IS PHYSICALLY WRONG WITH THE IGNITION SWITCH OR MODULE, AND CLEARING DIAGNOSTIC TROUBLE CODES ALLOW THE VEHICLE TO START IMMEDIATELY. SUSPECT PLANNED OBSOLESCENCE OF THE PART IN QUESTION.
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…
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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
Official recalls
318V427000 · Air Bags:frontal:passenger Side:inflator Module
Jun 22, 2018
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2005-2008 Audi A4 Sedan, A4 Avant, S4 Avant and S4 Sedan, 2007-2008 RS4 Sedan, 2004 RS4 Cabriolet, 2007-2009 A4 Cabriolet and S4 Cabriolet, 2005-2011 A6 Sedan, 2006-2011 A6 Avant, and 2007-2011 S6 Sedan vehicles. These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules used as original equipment or replacement equipment. In the event of a crash necessitating deployment of the passenger frontal air bag, these inflators may explode due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.
Consequence & remedy
Consequence: An inflator explosion may result in sharp metal fragments striking the driver or other occupants resulting in serious injury or death.
Remedy: Audi has notified owners, and dealers will replace the passenger frontal air bag with an alternate remedy part, free of charge. The recall began June 29, 2018. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 69R7. Note: This recall supersedes recalls 16V382, 17V032 and 18V004 and includes vehicles that may have had their air bag previously replaced under one of those campaigns.
17V032000 · Air Bags:frontal:passenger Side:inflator Module
Jan 11, 2017
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2009 Audi A4 Cabriolet, S4 Cabriolet, A6 Avant, A6 Sedan and S6 Sedan vehicles originally sold, or ever registered, in Arizona, Arkansas, Delaware, the District of Columbia, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, and West Virginia, or "Zone B." Additionally, unless included in "Zone B" above, Volkswagen is recalling certain 2005-2008 Audi A4 Avant, A4 Sedan, A6 Sedan, S4 Avant and S4 Sedan vehicles, 2007-2008 A4 Cabriolet, RS4 Sedan, S4 Cabriolet and S6 Sedan vehicles, and 2006-2008 A6 Avant and 2008 RS4 Cabriolet vehicles originally sold, or ever registered, in Alaska, Colorado, Connecticut, Idaho, Iowa, Maine, Massachusetts, Michigan, Minnesota, Montana, New Hampshire, New York, North Dakota, Oregon, Rhode Island, South Dakota, Utah, Vermont, Washington, Wisconsin, and Wyoming. These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules used as original equipment or replacement equipment. In the event of a crash necessitating deployment of the front air bags, these inflators may rupture due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.
Consequence & remedy
Consequence: An inflator rupture may result in metal fragments striking the vehicle occupants resulting in serious injury or death.
Remedy: Audi will notify owners, and dealers will replace the passenger frontal air bag inflator, free of charge. The recall began March 30, 2018. Owners may contact Audi customer service at 1-800-253-2834. Note: This recall has been superseded by recall number 18V427.
16V382000 · Air Bags:frontal:passenger Side:inflator Module
Jun 1, 2016
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain model year 2004-2008 Audi A4, and 2005-2011 Audi A6 vehicles originally sold, or ever registered, in Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands (Saipan), and the U.S. Virgin Islands, or "Zone A." Additionally, unless included in "Zone A" above, Volkswagen is recalling certain model year 2004-2008 Audi A4, and 2005-2008 Audi A6 vehicles originally sold, or ever registered, in Arizona, Arkansas, Delaware, District of Columbia, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, and West Virginia, or "Zone B." Lastly, unless included in "Zone A" or "Zone B" above, Volkswagen is recalling model year 2004 Audi A4 vehicles originally sold, or registered, in Alaska, Colorado, Connecticut, Idaho, Iowa, Maine, Massachusetts, Michigan, Minnesota, Montana, New Hampshire, New York, North Dakota, Oregon, Rhode Island, South Dakota, Utah, Vermont, Washington, Wisconsin, and Wyoming. These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules, and used as original equipment or replacement equipment. In the event of a crash necessitating deployment of the front air bags, these inflators may rupture due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.
Consequence & remedy
Consequence: An inflator rupture may result in metal fragments striking the vehicle occupants resulting in serious injury or death.
Remedy: Audi will notify owners, and dealers will replace the passenger frontal air bag inflator, free of charge. Owner notification letters were mailed April 28, 2017. Owners may contact Audi customer service 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 ↗
NHTSA investigations
1PE08008 · Fuel Tank Leak
Opened Jan 31, 2008 · Closed May 30, 2008
Status: closed (inferred from source dates) · Fuel System, Gasoline:storage:tank Assembly; Fuel System, Other:storage:tank Assembly:pressure Relief Devices
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 THE VENT LINE IS TENSION FREE AND CORRECT THE INSTALLATION IF TENSION IS FOUND.IF A CRACK OR FUEL LEAK IS FOUND, VW WILL REPLACE THE FUEL TANK.AUDI WILL REPAIR ALL SUBJECT VEHICLES BY REINFORCING THE FUEL TANK ROLLOVER VALVE WITH AN EPOXY ADHESIVE.THIS INVESTIGATION IS CLOSED.
Additional source detail variants (4)
Fuel System, Gasoline:storage:tank Assembly
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 THE VENT LINE IS TENSION FREE AND CORRECT THE INSTALLATION IF TENSION IS FOUND.IF A CRACK OR FUEL LEAK IS FOUND, VW WILL REPLACE THE FUEL TANK.AUDI WILL REPAIR ALL SUBJECT VEHICLES BY REINFORCING THE FUEL TANK ROLLOVER VALVE WITH AN EPOXY ADHESIVE.THIS INVESTIGATION IS CLOSED.
Fuel System, Gasoline:storage:tank Assembly
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 THE VENT LINE IS TENSION FREE AND CORRECT THE INSTALLATION IF TENSION IS FOUND.IF A CRACK OR FUEL LEAK IS FOUND, VW WILL REPLACE THE FUEL TANK.AUDI WILL REPAIR ALL SUBJECT VEHICLES BY REINFORCING THE FUEL TANK ROLLOVER VALVE WITH AN EPOXY ADHESIVE.THIS INVESTIGATION IS CLOSED.
Fuel System, Other:storage:tank Assembly:pressure Relief Devices
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 THE VENT LINE IS TENSION FREE AND CORRECT THE INSTALLATION IF TENSION IS FOUND.IF A CRACK OR FUEL LEAK IS FOUND, VW WILL REPLACE THE FUEL TANK.AUDI WILL REPAIR ALL SUBJECT VEHICLES BY REINFORCING THE FUEL TANK ROLLOVER VALVE WITH AN EPOXY ADHESIVE.THIS INVESTIGATION IS CLOSED.
Fuel System, Other:storage:tank Assembly:pressure Relief Devices
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 THE VENT LINE IS TENSION FREE AND CORRECT THE INSTALLATION IF TENSION IS FOUND.IF A CRACK OR FUEL LEAK IS FOUND, VW WILL REPLACE THE FUEL TANK.AUDI WILL REPAIR ALL SUBJECT VEHICLES BY REINFORCING THE FUEL TANK ROLLOVER VALVE WITH AN EPOXY ADHESIVE.THIS INVESTIGATION IS CLOSED.