HVAC Oder Due to Mildew in Heater Box on Mercedes-Benz C350

The heating, ventilation and AC (HVAC) heater box is susceptible to mildew buildup. This can result in a musty odor from the HVAC system, most noticeable when the system is first turned on.

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Average mileage: 55,000 (50,000–60,000)
5 model years affected: 2006, 2007, 2008, 2009, more2010
8 people reported this problem
0 people shared problem details
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