Report: Blower Final Stage Fan Resistor May Fail
BMW 325Ci Problem
Average Mileage: 65,504 mi (38,000 mi - 105,225 mi)
The blower final stage fan resistor is known to fail. Symptoms are the heater fan speed varies regardless of the setting, the fan will not turn off when the car is switched off, or the fan will not switch on at all.
My car makes these huffing sounds when the air is on!
On the hotest day in July I could not get my a/c to turn on. also the out side air temp was reading 40 degrees. I found a broken wire on the outside air temp probe. I repaired the wiring and cleaned the connector. the inside temperture began reading the correct temperture and the fan started working normally. So make sure your air temp probe is working.
Fan just stopped working. I tested for power at the blower motor and had none. I used a 12V power supply to power the blower motor for confirmation that the blower was ok. I purchased the reisitor pack at the local BMW dealer becuase I didn't want to wait to have one shipped. Not a difficult DIY.
Visitor, 2001 BMW 325Ci, 65,000 mi
resistor was replaced
Visitor, 2002 BMW 325Ci, 40,000 mi
I have the same problem with the fan resistor,and this is common according to my mechanic! It should be a recall!