I have a somewhat foul smell coming from my vents when I first start up the heater/ac fan in my '03 C4S. Any suggestions on how to deodorize the system? The system has been checked and is running fine - just kinda stinks a bit.
Thanks.

 

You can buy AC vent deodorizer/nuetralizer from any local parts store. Shoot some in the vents and let it sit for about 10 minutes before running the air, and also run some through the pollen filter inlet while the Air is running. That should take care of any mildew, etc that might be building up.

 

Thanks Don. Where is the pollen filter inlet?

 

Passenger side of the battery in the front trunk.