Hi, I have a very mouldy smell in my car. I managed to get access to the heater matrix and used a K2 AC foam cleaner which i also sprayed through the car air vents which got rid of around 90% of the smell ( the moudly smell is there right after i turn off the AC) so it must be the water condensation on the coils or possibly drain. From where I sprayed it, im guessing some of it mustve got to the evaporator coil but where would it actually be in relation to the heater matrix? Steering wheel is on the right side if that makes a difference and access to the heater matrix is from the glove box. I have an Audi a3 8v
