Condensation in the heater case may cause a musty odor from the heating, ventilation and AC (HVAC) system after sitting for two hours or more. Our technicians tell us that a cleaner is available for the heater case and the drain system should be checked for debris.
Problems for specific Volkswagen Jetta years:
Car problem reports
Problem with your car? See what our experts say or submit your own.
Newest reported 2012 Volkswagen Jetta problems