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Autos - Cars > BMW > Re: window on m...
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Re: window on my coupe

by "Jeff Strickland" <crwlr@[EMAIL PROTECTED] > May 10, 2008 at 01:03 AM

I have a '94 convertible that had the same problem -- the window would not 
drop then raise again when the door was opened.

The problem was a switch inside the door latch on the offending door.

You can test the door latch with a ratchet extension or other suitible 
object to simulate the post that the latch strikes. Open the door, then
use 
the ratchet extension to "close" the door against. (You might be able to
do 
this with your finger, but I found that using a tool was the way to go.) 
Anyhow, raise the window to the top and operate the handle to open the 
door -- the window should drop about 10mm (it should drop, and I think it 
goes 10mm, but if it drops at all it drops as far as it should).

Then, using the tool, "close" the door (set the latch as it would be if it

was grabbing the post), and the window should raise.

My guess is that the window will not drop, and therefore it won't raise 
either because it's already at the top. In any case, fiddle with the door 
latch -- cause it to overtravel a little -- and this should activate the 
window movement. When you "open" the door, I think you can mess with the 
latching mechanism a little, and cause the window to move too. If you can 
fiddle with the latching mechanism and cause the window to drop and raise 
properly, then there is a switch inside the mechanism that has a sticky 
linkage.

If you are good at investigating this sort of thing, you will find the 
switch and be able to clean the linkage. The trouble in my case was not
the 
window or the switch itself, but was the linkage between the switch and
the 
latching mechanism. The linkage operates on one plane to move a part on 
another plane, and this change in direction (planes of operation) and the 
pivots needed to sup****t such a design is where the problem is. You can
use 
a shot of contact cleaner followed by a suitable lubricant to free the 
sticky linkage parts. I messed with thinking the linkage was bent or worn,

and played with the idea of reforming it, then it hit me that it was just 
sticking due to years of corrosion. I dropped some sewing machine oil on
the 
pivot, and viola! There is a small spring that plays an im****tant role in 
this problem, and the corrosion on the pivot overpowered the spring, 
affecting the operation of the switch. By operating the latching mechanism

with your finger, or tool, you move the mechanism past the point where it 
moves by itself and this helps the spring operate the switch.

The latch mechanism does a good job of hiding in the door. The door panel 
has to come off, and there are screws that come out from the inside. I
have 
a Robert Bentley Manual for my E36, and it helped alot to get the latch
out.





"jaytee" <none@[EMAIL PROTECTED]
> wrote in message 
news:1202896_5d8cd57279901b3f7e8d9e75ed5d03de@[EMAIL PROTECTED]
>i have 320i coupe 1993 electric window on opening door window should
> drop down  and when closing should go back to original position but
> this is not happening . I have tried adjusting door lock but no
> satisfaction . Any clues? :(
>
> -- 
> Posted at author's request, using moderated http://www.AutoBoardz.com

> interface
> Thread archive:
http://www.AutoBoardz.com/window-coupe-ftopict247291.html
 




 6 Posts in Topic:
window on my coupe
jaytee <none@[EMAIL PR  2008-05-09 19:22:03 
Re: window on my coupe
"Jeff Strickland&quo  2008-05-10 01:03:14 
Re: window on my coupe
"Themangood" &l  2008-06-21 20:24:02 
Re: window on my coupe
"Jeff Strickland&quo  2008-06-21 20:18:03 
Re: Re: window on my coupe
jaytee <none@[EMAIL PR  2008-07-07 03:22:23 
Re: Re: window on my coupe
"Jeff Strickland&quo  2008-07-07 15:39:08 

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tan12V112 Sun Sep 7 23:45:21 CDT 2008.