Odor from HVAC system on Volkswagen Eos

Condensation may develop in the heater case which can cause a musty odor from the heating, ventilation and AC (HVAC) system.  Our technicians tell us the drain system should be checked for debris. In addition, a cleaner is available for the heater case.

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Average mileage: 58,533 (13,000–95,000)
4 model years affected: 2007, 2008, 2009, 2010
12 people reported this problem
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problem details
2007 Volkswagen Eos 95,000 mi,
Musty odor when using the heater after raining or car wash.
2009 Volkswagen Eos 32,000 mi,
It STINKS every time I turn on the AC
2007 Volkswagen Eos 68,000 mi,
odor and air conditioning not coming out very cold
Gross and musty smell when using A/C and defrost. It is mostly better now that the dealership replaced the filter ($65 part)
2010 Volkswagen Eos 13,000 mi,
ac system smell