Did someone find a suitable aftermarket replacement fan motor (without the fan blade) for the fan at the back of the IHKA control panel? Officially called INTERIOR TEMPERATURE SENSOR FAN 64118390150 and pretty expensive with $117.73.
http://www.realoem.com/bmw/enUS/show...diagId=64_1818
pics
http://twrite.org/shogunnew/files/ih...rfandetail.jpg
https://www.turnermotorsport.com/p-1...uine-bmw-part/
must fit in here http://i.imgur.com/0RTnQNX.jpg
Pulls the air thru here http://bmwe32.masscom.net/johan/ihka...emp_sensor.jpg
Disassembled http://web.archive.org/web/200104281...w.com/ac_cont/
Have several units in store which make noise. The fans are almost 30 years old and I assume the bearings are at the end of their lifetime. Once I greased a bit, worked for some years. Have one module disassembled, sticker: Bosch 12V 0 130 002 Made in Germany, MR 90.413.01.785, but in the plastic housing of the Motor I can see JOHNSON. Measured as per the instructions on the Mabuchi site: length 32mm, diameter 28mm. The pin where the plastic fan is stuck on has a diameter of 2mm. No RPM indicated. Maybe someone already has replaced the Bosch by a Mabuchi and can tell us the number. I am not in a hurry, have some spare, just checking. The plastic fan is just pressed on, can probably be removed without breaking it, maybe before heating a bit with a hair dryer that the plastic becomes soft. Fan dimensions: 42mm, 9mm
https://www.mabuchi-motor.com/produc...ion/types.html