Blower Final Stage Fan Resistor May Fail on BMW 325i

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: 114,188 (17,000–250,000)
7 model years affected: 1992, 1993, 2001, 2002, more2003, 2004, 2006
90 people reported this problem
49 people shared problem details
2003 BMW 325i130,000
Air conditioner/heater hisses as if it's coming on, but blows no air now in either mode. Is this an easy, inexpensive fix?
2002 BMW 325i67,345
Blower motor keeps running after you turn car off and running. Battery. Down
2001 BMW 325i80,000
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.
AC/Heater blower will not work
2001 BMW 325i172,300
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
1993 BMW 325i189,000
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.
2006 BMW 325i106,000
fan not blowing
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.
2006 BMW 325i151,414
Blower will not come on at all.
2001 BMW 325i120,000
Blowwer final stage resistor failed. Fairly easy to replace not an expensive part. Problem was I could not control fan speed.
2001 BMW 325i175,000
fan stays on unless battery is disconnected. if battery is reconnected, fan turns back on.
The fan is only blowing at the lowest speed
2006 BMW 325i145,000
fan stopped blowing air. One day it worked fine; the next it was dead. It won't work at any speed. Display lights up normally; it sounds like AC compressor runs if I turn on AC. Fuses aren't blown.
2003 BMW 325i35,000
variable blowing, sometimes not at all, then finally just stopped working altogether. $500 for part and labor at a BMW dealer
2001 BMW 325i122,532
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
2003 BMW 325i100,500
I have a 2003 BMW 325i AC unit will not turn on at all Prior to that I had the AC unit charged and it was blowing hot air now it doesn't turn on at all?
Fan will not turn on
2002 BMW 325i133,982
blower has stopped working. Lights on dash are working. No AC either
1992 BMW 325i140,000
My heater and air conditioner does not work lights still work and makes sounds as if trying to work but does not turn on at all.
Heater fan not blowing
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