Hi

car: audi 80 avant, 93, 2.0

The turn-**** for the interior heating fan of my car only works on level III and IV. Anybody have experience about what could be the cause and how it can be fixed?

Magnus

 

You probably have an open circuit in the blower motor resistor block. It should be located near the blower motor. I wouldnt rule out a bad switch thou. You gonna have to do some old fashion electrical testing and find out where you have power and where your loosing it with the switch in the various positions.