Car Problem Reports

Volkswagen Jetta TDI Odor from HVAC vents

Volkswagen Jetta TDI Problem
13 Reports
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Model Years Affected: 2005, 2006, 2009, 2010, 2012

Average Mileage: 47,266 mi (10,000 mi - 70,000 mi)


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.

  • Visitor, , 59,600 mi

    Vinegar like odor from HVAC. Becomes pronounced when AC is on. Have not solved yet, will likely take to dealer for cleaning.

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  • Visitor, , 70,000 mi

    Odor coming from vents when AC is on.

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  • Visitor, , 42,000 mi

    A musty odor coming from the air conditioner vents. Dealer offered to check it for a price, we decline and bought a new AC filter from auto parts store, which I will replace myself.

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  • Visitor, , 70,000 mi

    I have begun to notice a distinct smell of antifreeze in the car, especially when climbing mountain ranges. The smell emanates from the vents even if the fan is completely turned off. No solution yet, but I suspect a slight leak in the heater core or the attached hoses. It resulted in extremely lungs for several weeks after an 8 hour road trip.

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  •  Rookie

    I have noticed when I started using the AC in the Spring now, AC smells like mold. After leaving the fan on high for a few minutes, the smell disappears (and or i'm just getting used to it).

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