R129 electric windows problem

[kkmfo]

My 97 SL320's electric windows have recently become juddery and squeaky. Even worse, they intermittently fail to do the automatic "open half an inch/close" when you open/close the door (on both doors).
This leaves me having to open and close the door repeatedly until it does work.

The problem seemed to get worse when I put the hard top on a few weeks ago.

Is this a door alignment problem, something else/worse, or just a need for a bit of appropriate lubrication ?

Any advise would be much appreciated.
Thanks

 

[piestore]

sl 129 windows

sounds like the windows have lost there posisition you need to normalize them. sit in car with ignition on press down button ( 1st stage only) till window is allthe way down then continue to hold for 5 seconds then press to second stage (one touch) without releasing button, then press up (first stage only) till window at top hold for 5 seconds then complete second stage then repeat for other window. if one touch works window is normalized. roof will not work if windows are not normalised.


juddering yes lubricate

 

[kkmfo]

Windows - delaership haven't a clue

Further to my original post - :

" My 97 SL320's electric windows intermittently fail to do the automatic "open half an inch/close" when you open/close the door (on both doors).
This leaves me having to open and close the door repeatedly until it does work. "


The dealership have had the car in twice and have completely failed to solve the problem.
All they have done is "reset" the windows - presumably what piestore described.
Anybody have any experience with this problem and how to fix it ?
Does it need a new motor or something ?

 

[piestore]

windows

Hi

Next step would be to remove door pads. lubricate all mechanical parts with grease and all rubber parts with silicone and normalize windows