One problem related to mass air flow sensor 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.
Vehicle has 80k miles I've replaced 3 mass air flow sensors, approx 12 coils. The latest issue is the epc - car stalls while driving, epc comes on. Car will restart with some difficulty.