Mildew in Heater Box on Mercedes-Benz C280

Problem overview

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.

3 people reported this problem

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Mercedes-Benz C280 vehicles with this problem

2 model years affected

2007 Mercedes-Benz C280

2006 Mercedes-Benz C280

2007 Mercedes-Benz C280

2006 Mercedes-Benz C280

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Submitted by Vehicle Owner · May 29, 2025

Published by RepairPal

Mildew in Heater Box on Mercedes-Benz C280

Problem overview

Mercedes-Benz C280 vehicles with this problem

Need a diagnosis? Trust our Mercedes-Benz experts.

Search for another problem

Ask our experts about your Mercedes-Benz.