Final Stage Resistor Failing?
 

My interior blower fan is now intermittently shutting off when I'm using the HVAC. Is intermittent operation indicative of a failing FSR? If so that is quite annoying because I replaced mine a year and a half ago. Anything else it could be?

Thanks-

When mine started doing that it ended up being the fan itself. It's lots of fun to replace.

I just replaced one in an E46.. It wasn't hard, just literally had to bend in about 9 places to get into the space to get it done. I don't know if the E53 is similar to the E46, but here is my guide just in case.

https://youtu.be/ZvzOzDD0-AA

E46 is relatively easy. On the E53, the entire dash needs to come out. I think it took me about 14 hours, but I was methodical about labeling things.

that's one symptom of a failing FSU.
you have more space on the x5 and relatively easier than the e46 or e39.. what brand of FSU you bought?


https://www.youtube.com/watch?v=XyuDw6wl2gU




https://www.facebook.com/Bmw-e53-2508322126058762/

Oh fun. I can not wait until it is my turn.

It's actually not that hard; just a large amount of stuff to remove to get at it. I'm guessing a pro could do one in under 8 hours.