HVAC Oder Due to Mildew in Heater Box on Mercedes-Benz C55 AMG

Problem Description and Possible Solution

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.

Problem Data
RepairPal Verified
Average mileage: 72,250 (70,000–74,500)
2 model years affected: 2005, 2006
4 people reported this problem
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