BMW 328i Problem Report
BMW 328i Blower Final Stage Fan Resistor May Fail
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.
The air conditioner would work, and you could tell it was cold but the air would not blow out of the vents. Also this would happen off and on for about 6 months. The air conditioning would work and blow cold air, then it seemed like on the really HOT days it would not blow the cold air at all, so i had enough!!! Replaced the final stage transistor and Yeah that fixed the problem!!!!!!!!!!! - Natha
Fan not blowing when the heart or air condition is on. - Visitor
The AC fan blows at random speeds without being touched. The air coming out is cold, but set on maximum, it will blow hard and then soft then somewhere in the middle and fluctuate the entire time you are driving. - Visitor
Heater not blowing - Visitor
Taking to the dealer on Monday. - Visitor
A/C starts and stops unpredictably as if a connection is loose. Perhaps I will have to try replacing the final stage fan transistor whatever that is. - Visitor
sometimes fan doesnt work - Visitor
Blower goes on intermittently. They want to replace whole resistor for $400+ - Visitor
the a/c would turn on when it wanted,first i thought it was a loose connection point, wrong! I'm now going to replace the final stage resistor, pray to god. I live in Las Vegas, and it's HOT!!!!! - Visitor
AC/Heater fan only works sporadically and almost never when you need it. No solution - Visitor
Has 12volts to fan module, also motor does run when voltage applied. How do i troubleshoot cont...
My fan motor takes 10 minutes to start working when cold. The colder the longer it takes to sta...
the fan/heat comes on automatically after being turned off - I'll turn it off again and it come...
i cant get my in side heater fans to stay on it turns on for a while then shuts off need help p...
worked 1 day super cold n blew on max n shut down when hit exact temp was set to....next day no...