Window transmission issue

Baikal Bimmer

Baikal Bimmer

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California
Hi everyone, I have encountered a problem when installing the window motor and transmission. When plugged in, the plastic gear spins independently of the inner metal piece in the transmission housing, resulting in the motor spinning the gear, but not actuating the window. Anyone have any solutions or tips. If you guys need a picture to clarify just ask.
 
Just search ‘sardine motor’

3D Printed plastic gear for window regulator transmissio

3D printed gear I received from TravL350 was successfully installed. Although it will be a while before it is back on the car I am confident it will work fine because I tested it many times. For now here are few pictures I took and later when I do my next regulator I will be taking more detail...
e9coupe.com e9coupe.com
 
Those nylon gear transmissions are the weak point of the window winding system. My rear left window has stripped 3 transmissions over 8 years.

The best possible remedy is to replace the old transmissions & motors with 1980s E28 rear window motors with the integral transmissions. To replace them all will need 2 rear rights & 2 rear lefts. I have had my rear window motors converted to E28s. There are a few modifications to make them work so I had a shop do the installation.
 
You would think that BMW would have learned........................anybody change a transfer case gear on their newer BMW??? Aftermarket now in aluminum. I was wondering if anyone had the diameter and #teeth on the window gear to see if this transfer gear (alum version) can be modified to fit.

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I was able to put a new gear in, problem solved. Does anyone know ow to adjust this spot for more clearance, I would want to shatter the glass.

D6F56159-7606-4D06-BCED-07214B74493A.jpeg


and what about this angle, anyway to adjust this
image.jpg

The top and the bottom seem to be skewed
 
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