Mercedes-Benz C280 4MATIC Problem Report

Mercedes-Benz C280 4MATIC HVAC Oder Due to Mildew in Heater Box

(7 reports)

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.

mildew almost wet shoe smell when heat turned on. Replaced part in hvac system over all happy with the vehicle. We call it the snow commander. Worried about the cam shaft issue many report. No check engine light yet but it seems MB would be right to recall the vehicle due to such a prevalent issue. -
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