My blower fan stopped working at lunch today. Got online and did some searching here and found the most likely culprit is the Final Stage Unit (FSU). I called the local dealer and they had the part so I stopped by to pick up the part ($185, but only $105 with BMWCCA discount). Still pricier than online, but the part is Sitronic/Valeo and made in Germany AND I could get it and fix it the same day (it's somewhat hot around here).
There were plenty of DIY photos and I was able to replace it in about 20 minutes start to finish. The backside of the old one looks like it has a spot that has little dimples like it got overheated. Not sure about that though.
The fan did work on the way to pick up the new FSU, but from all that is posted about battery drain I wanted none of it, so it got replaced. Hopefully this is the i
This place is a treasure trove.
(now with the money I saved with the BMWCCA discount, I might buy a ticket or two in their raffle)