The center vent in my 1992 535I has stopped giving any warm air recently. I realize that there is a steppermotor mount on the heater housing. How difficult is it to get to through the radio and vent area without removing the dash or console areas? There could be a broken mount in there as I found alittle plastic tab last week on the shifter console and just figured out what it was.
I know that the center vent does not give off really hot air but I have nothing other than cool air. Are there any other heater controls that I could be overlooking?