Fuel System, Other › Storage › Tank Assembly Vehicle Recalls

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.

ON CERTAIN COMPRESSED NATURAL GAS (CNG) VEHICLES, IN THE EVENT OF A SEVERE INTERIOR FIRE IN THE AREA OF THE REAR SEAT, THE CNG TANK MAY BE HEATED UNEVENLY, PREVENTING THE PRESSURE RELIEF DEVICE FROM VENTING THE CONTENTS OF THE TANK AS DESIGNED.

ON CERTAIN NATURAL GAS VEHICLES, IF A FLAME FROM A VEHICLE INTERIOR FIRE BECOMES LOCALLY DIRECTED AT THE NATURAL GAS FUEL TANK LOCATED IMMEDIATELY BEHIND THE REAR SEAT, THE FLAME COULD DAMAGE THE FIBERGLASS WRAP ON THE TANK WEAKENING THE TANK.

ON CERTAIN NATURAL GAS MODEL VEHICLES, A T-FITTING THAT CONNECTS FUEL TANKS #3 AND #4 CAN DEVELOP A LEAK WHEN THE SOLENOID VALVES ARE ENERGIZED, SUCH AS WHEN THE IGNITION SWITCH IS IN THE ON POSITION OR DURING REFUELING.

VEHICLE DESCRIPTION: BI-FUEL VEHICLES. THESE VEHICLES MAY HAVE A FUEL TANK FILLER PIPE GROMMET THAT COULD HAVE BEEN DAMAGED DURING THE INSTALLATION OF THE BI-FUEL SYSTEM. IF THE GROMMET IS DAMAGED, FUEL COULD LEAK. FUEL LEAKAGE IN THE PRESENCE OF AN IGNITION SOURCE COULD RESULT IN A FIRE. DEALERS WILL REPLACE THE FUEL TANK FILLER PIPE GROMMET.