After heavy rain the car vents smell musty for the first couple of minutes. The smell fades once the air conditioner runs. I replaced the cabin filter recently, and the footwells feel dry, but I haven't checked the evaporator drain. I'm wondering whether moisture is lingering in the HVAC housing rather than entering from outside. What's the sensible diagnostic order before paying for a cleaning treatment that might only mask it?
A musty smell from vents after rain
Safety-critical vehicle advice should be treated as general discussion; use qualified repair help when a fault could make a vehicle unsafe.
- car-repair
- musty
- smell
- vents
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