Car Problem Reports

Mercedes-Benz CLK350 Mildew in Heater Box

Mercedes-Benz CLK350 Problem
11 Reports
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Model Years Affected: 2006, 2007, 2008, 2009

Average Mileage: 45,242 mi (24,000 mi - 85,000 mi)


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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