One problem related to tank assembly has been reported for the 2004 Volkswagen Passat. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Volkswagen Passat based on all problems reported for the 2004 Passat.
Fuel tank ventilation valve is leaking fuel. Vw dealer refused to fix it under the existing recall: NHTSA campaign id number: 08v156000 NHTSA action number: pe08008 I have vw Passat 2004 GLS 4 motion w/manual transmission.