Blower Final Stage Fan Resistor May Fail on BMW 325xi

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.

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Average mileage: 133,745 (75,000–198,000)
3 model years affected: 2001, 2002, 2003
7 people reported this problem
2 people shared problem details
Fan doesn't turn on at all
2002 BMW 325xi128,235
blower turns on when it whants to and can not control the heat
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