Blower Final Stage Fan Resistor May Fail on BMW 325xi

Problem Description and Possible Solution

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.

Problem Data
RepairPal Verified
Average mileage: 132,058 (75,000–198,000)
3 model years affected: 2001, 2002, 2003
9 people reported this problem
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Fan doesn't turn on at all
blower turns on when it whants to and can not control the heat