Car Problem Reports

BMW 525i Blower Final Stage Fan Resistor May Fail

BMW 525i Problem
14 Reports
Me Too

Model Years Affected: 2001, 2002, 2003

Average Mileage: 99,833 mi (70,000 mi - 155,555 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.

  • Visitor, , 75,000 mi

    the fan sometimes on, sometimes off,and now it's dead not on at all. Is it the only possibility that blower final stage resistor need to be replaced? or there's other possibility like fan motor?

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  • Visitor, , 128,000 mi

    air wouldn't flow so had it insepected and replaced this part.

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  • Visitor, , 70,000 mi

    Final stage resister failure caused fan to continue to draw power after shutting off car. The battery would drain and the alarm would then trigger when set.

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  • Visitor, , 101,779 mi

    I have a 2003 bmw 325 i the ac fan wont turn off after my car engine is off

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  • Visitor,

    *I coun'nt figure out why cars battery kept on dying and fans blower would come on and not shut off when you needed it to until I replaced the blower final stage unit, all is back to normal, Thank God..........

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  • Visitor, , 80,000 mi

    failed in 2008

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  • Visitor, , 75,000 mi

    Blower output varies constantly and sometimes won't turn on. Had to replacew. $300!

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