Blower Final Stage Fan Resistor May Fail on BMW 525i

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: 120,252 (70,000–222,000)
5 model years affected: 1994, 2001, 2002, 2003, more2007
25 people reported this problem
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problem details
2002 BMW 525i 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?
2003 BMW 525i 101,779 mi,
I have a 2003 bmw 325 i the ac fan wont turn off after my car engine is off
2003 BMW 525i 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.
2002 BMW 525i 222,000 mi,
When the car is turned off the floor vents blow hot air including my arm rest vent. I get no light on any of my ac buttons. I thought it would be fuse 9 or 20 but they look fine. I take 9 out and the blower stops of coarse. The only think I can think of is the big porcupine looking fuse on the passenger side under the vent on the floor. Is it an FSU problem?
2002 BMW 525i 128,000 mi,
air wouldn't flow so had it insepected and replaced this part.
blower motor stopped blowing
*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..........
2002 BMW 525i 150,000 mi,
Buy the part from Rock Auto (<$40) and go on line and replace it. It takes less than 5 minutes. The repair location is under the passsenger side, unclip and remove and replace. Works like a charm, BMW wanted $200+ to replace.
2003 BMW 525i 75,000 mi,
Blower output varies constantly and sometimes won't turn on. Had to replacew. $300!
2002 BMW 525i 185,000 mi,
It randomly started. Would turn the car off, the blower would stay on and eventually run the battery down. I haven't had it fixed yet, but in the meantime every time I park I have to get into the trunk and unhook the battery cable so it doesn't run down the battery.
2003 BMW 525i 75,000 mi,
Blower final stage fan resister replacement because fan would not start.
2003 BMW 525i 113,000 mi,
Fan blower stays own after engine shutdown depleting the battery charge.
2003 BMW 525i 121,000 mi,
My blower motor stays on even after the car is turned off causing the battery to die out. I need to shut it off how do i do so?
2001 BMW 525i 130,010 mi,
Not fixed yet, fan blows cold on face only when heater on, but will be hot at feet or defrost. Defrost will stay on or turn on after engine shut off.
2002 BMW 525i 133,456 mi,
blows hot air under the dash while driving and the cluster that controls ac/heat doesnt work at all
2002 BMW 525i 80,000 mi,
failed in 2008