Car Problem Reports

BMW 325i Blower Final Stage Fan Resistor May Fail

BMW 325i Problem
65 Reports
Me Too

Model Years Affected: 1992, 1993, 2001, 2002, 2003, 2006

Average Mileage: 111,351 mi (30,000 mi - 250,000 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.

  • , , 67,345 mi

    Blower motor keeps running after you turn car off and running. Battery. Down

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  • , , 80,000 mi

    Fan was intermittent. Dealer told me my blower resistor (final stage unit) has gone bad and the repair would cost $350. Didn't have the dealer perform that repair. Bough part online for $65 and found DIY online. Took 45 mins.

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  • , , 130,000 mi

    Air conditioner/heater hisses as if it's coming on, but blows no air now in either mode. Is this an easy, inexpensive fix?

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  • , , 172,300 mi

    Blower fan resistor failed. When I switch on my AC the speed does not increase or decrease. A local technician got a new blower resistor and replaced it for

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  • , , 190,000 mi

    AC/Heater blower will not work

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  • , , 120,000 mi

    Blowwer final stage resistor failed. Fairly easy to replace not an expensive part. Problem was I could not control fan speed.

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    The blower speed varies up and down while driving with the AC on. Sometimes the blower will fail to operate at all. I have not had it repaired yet.

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  • , , 189,000 mi

    The heater blower does not work and blows cold air continually. I replaced the resistor back about a year ago. Do you have any suggestions for this.

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  • , , 35,000 mi

    variable blowing, sometimes not at all, then finally just stopped working altogether. $500 for part and labor at a BMW dealer

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  • , , 122,532 mi

    heater will work but my car warms up and i turn off the engine then turn it back on it doesn;t work at all

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