Why does the passenger side footwell of my car keep getting damp?

I have damp on the floor of the passenger side of my ten year old Volkwagen Passat. Where is this likely to be coming from?

Asked on 27 February 2020 by Jim Brannigan

Answered by Dan Powell
Probably a blocked drainage vent well in the bulkhead. The owner's manual should instruct you how to clear this. The vehicle's pollen filter will also probably need changing.
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