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: 110,316 (17,000–250,000)
7 model years affected: 1992, 1993, 2001, 2002, more2003, 2004, 2006
72 people reported this problem
40 people shared problem details
2002 BMW 325i67,345
Blower motor keeps running after you turn car off and running. Battery. Down
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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.
19 people like thisFlag inappropiate
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?
12 people like thisFlag inappropiate
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
11 people like thisFlag inappropiate
AC/Heater blower will not work
10 people like thisFlag inappropiate
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.
8 people like thisFlag inappropiate
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.
7 people like thisFlag inappropiate
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.
6 people like thisFlag inappropiate
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
2 people like thisFlag inappropiate
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
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The fan is only blowing at the lowest speed
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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.
2006 BMW 325i100,000
Air not coming on no sound from it
2003 BMW 325i97,000
This is the second time the blower resistors have gone bad, I had them replaced two and a half years ago.
2001 BMW 325i198,000
Had this car for less than a week. Bought it used for under $4000 in Waco, TX thought it was a great car but now I'm not so sure. I don't know how to get it fixed except to take it back to where we bought it.
1992 BMW 325i250,000
At first my mechanic decided it was the blower motor resistor or relay while waiting on the parts to be sent he rigged it so I would have ac until then... well that blew the fuse he put in so I take it back and he says the blower motor needs to be replaced to... now the next day it is running and not shutting off when car is off so I'm going to have him just fix resistor first and pray that fixes the problem! Because obiusly the blower motor it's self is working...
2006 BMW 325i126,679
ac will not blow no matter how high fan is set,but ac lights and everything come on...was working 2 days ago and now its not... what should i do?
2003 BMW 325i95,000
fan stopped working but you can hear the car changing when ac is turned on so i believe it is just the fan.
replace final stage unit.
Fan for A/C and heater will not turn on at all regardless of settings.
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