Condensation may develop in the heater case which can cause a musty odor from the heating, ventilation and AC (HVAC) system. Our technicians tell us the drain system should be checked for debris. In addition, a cleaner is available for the heater case.
Odor from HVAC system on Volkswagen CC VR6
6 people reported this problem
2009 Volkswagen CC VR6 57,303 mi, Visitor
When I turn on the AC I get this weird odor.
2010 Volkswagen CC VR6 16,000 mi, Visitor
Problem has not been fixed. They told me they're waiting for a special "machine" to cleanse the system.