Bulletnjm
FRF Addict
Do you use the recirculate function? most vehicles close the fresh air flap even when the car is shut off, which causes stagnant air to get a bad smell in the heater box, then you turn on the a/c after it sits for a while and you get a blast of foul smelling air.
Yes i do typically use recirculate, i guess it is just recirculating bad smelling air