Heather fan speed can not be adjusted. It automatically goes on high speed every time I start the car and it can be turned off just manually, but when I turn fan on it goes again to maximum/high speed. My car has digital climate control so if you could please respond and help me fix it I would appreciated. Gratefully: Silvana
Heather Fan? on 2000 BMW 323Ci
by Visitor in Valrico, FL on April 25, 2010
ANSWER by Bret Bodas on April 25, 2010
Silvana, The heater fan generally is controlled by the climate control module and a blower motor resistor. One of these are likely defective, but you should have it diagnosed by a shop to make sure the correct part is replaced. These electronic systems can be tricky, so go to a shop that specializes in BMW's. I suggest looking for a Bosch certified repair shop as well.