I have a 2010 Clubman S R55 with a temperature controlled A/C & Heater.
Last week my fan seemed to stop working. It didn't matter if I forced the fan to low or high but no airflow at all. After reading as much as I could this is where I am at:
1. Checked Fuse F48 and it is good
2. Pulled blower motor and ran power to it and it spins when power is applied.

So where do I go or what can I check now? The only other part that I can pull is the blower motor resistor/regulator but not sure how to check that.

Any help would be greatly appreciated.
Thanks

 

What led to the issue if you remember? Did you check the switch itself?

 

Check the blower motor resistor. This is a common failure in many newer cars. Variable speeds are achieved with a pack of variable resistors. Usually low speed failures are bad resistors if the high speed still works. If all speeds fail, the resistor took out the common wire and nothing works.

 

I agree with Tim McCreary, it sounds like an issue with the resistor, which may be called a Final Stage Resistor or Final Stage Unit on these. I had one go out on a BMW of mine, and it caused the fan to not work at all. It was a somewhat pricey, but not too bad.

 

We have these available, I'll shoot you a PM!

 

****Update*****
Thanks for all the help guys! As it turned out it was the Resistor. I purchased a new one and installed it. There is now power to the fan motor.
I would like to ask a second question now, Before I go though all the back-bending to install the blower motor, should I purchase a new one or should I put the original one back in? I read somewhere that they should be replaced together. What do you think?

 

Electric motors are usually reliable. Did the fan make any abnormal noises before the resistor failed? Check the end-play of the shaft to see if there some excess side-to-side movement. Search if anyone else is having problems.
My guess is the motor is probably fine.

 

I would go ahead and put it back in there. I have some other BMW products that had blower motors last for close to 300k miles. Lol, also, I discovered that when they started to go bad, they start to squeak. You can take them out and use a dropper to put oil inside the bearings to get more life out of them. The electric motor is should have a long life as long as there is nothing to obstruct it or give it unnecessary resistance (not electrical resistance, but like friction).