Problem Reports
Mercedes-Benz C350
Report: Mildew in Heater Box
Mercedes-Benz C350 Problem
6 Reports
Model Years Affected: 2006, 2007, 2008, 2009, 2010
Verified
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.