Mercedes-Benz C230 Problem Report

Mercedes-Benz C230 HVAC Oder Due to Mildew in Heater Box

(15 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.

car makes everyone cough -
The car's AC has an awful vinegar smell that is pretty constant. After running for a WHILE, it gets a little better but not really. The problem has not been fixed, just tolerated. -
Smelly mildew hvac -
Sour smell from AC -
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