Can u service motor for winding down the window?

[nsbone_1988_520i]

Hi,
Is the window motor serviceable? Anyone done that? Easy?

thanks,

[shogun]

I have never done it, but it looks they can be disassembled, look at these pics at Autohaus where they are just on sale
http://www.autohausaz.com/search/productx.aspx?sid=3g5w1y55nf1hbb55sr3cf1mj&makeid=800003@BMW&modelid=1012734@735I&year=1990&cid=13@Body,%20Trim%20%26%20Lighting&gid=1580@Window%20Motor
But usually a bit of grease for the mechanical joins helps and new
Window Regulator Bushing/Repair Kit; Sliding Piece for Window Regulator
http://www.autohausaz.com/search/productx.aspx?sid=3g5w1y55nf1hbb55sr3cf1mj&makeid=800003@BMW&modelid=1012734@735I&year=1990&cid=13@Body,%20Trim%20%26%20Lighting&gid=1581@Window%20Regulator%20Bushing/Repair%20Kit
Carefully clean the area where the sliding pieces are sliding. Maybe there is old hard grease inside.

[ahager]

I just replaced one of the window lift motors on my e23; this should be the same as your 1988 525. The motor "pops" out once you remove two screws that hold it in; the motor "pops" out along with the worm gear that works witht he lifting mechanism. There is a set screw exactly opposite the motor and in line with the motor shaft - look for this - I loosened it to "pop" the new motor in, then tightened it (set screw) to make the whole thing work ok. Email me if you need more info. :)

[shogun]

And?
Did you do it or not?
I assume you will include it in your homepage ;)

[shogun]

Here is hot to open the motor (pics)
http://dd.jpn.org/BMW_HP/20060410/index.shtml
If you want to have a translation from Japanese to English, use altavista.babelfish online translation