I am looking for a solution, as to why my sunroof will go up and down, but when trying to activate the full retracting function, only one side will lower, hence the roof will not open. Any advice will be gratefully received.

Try Here:

http://www.***************/forum/showthread.php?t=656

AND:

http://www.w124performance.com/images/W124_sunroof/

(Info courtesy GSXR)

When you have lots of time:

http://www.detali.ru/cat/oem_mb1.asp?TP=1&F=124052&VIN=

(scroll down the page)

[Mercedes Benz Club of Russia's Illustrated Electronic Parts Catalog]


I believe the picture below MAY be your problem.
(BUT,keep in mind,S'roofs ARE VooDoo to me!)

Attached Thumbnails

 

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'84 300SD sold
124.128

Thanks for that, will look into it.
Regards
Toe26

Thanks for the links. The sunroof on two of our cars have odd problems with the angular tilt.

Sunroof tracks are tricky. You could have a broken guide.

Can you manually retract the sunroof? If so, do it halfway, pop the sunroof headliner where there are tabs in the front of the assembly, slide the headliner out and you should have access to the sunroof mechanism from underneath.
I find it easier at this stage to close the sunroof then remove the bolts that hold the actual sunroof sheet metal to the supports. Once out, I can stand up on the car seat and easily work on the mechanism from any angle. I also take the cable bolts out so that way I can slide the sunroof frame/support in and out by hand right where I am. This allows full access to the side guides and tracks.
If you need to remove a guide from either side, you will need to unscrew the screws holding the track down from the top.
It's actually easier than you think as long as you NEVER force anything EVER. Don't ask me how I learned that...

I recently replaced the angles on my '91 300E. It was such a pain in the butt, I now refuse to use my sunroof again. Do yourself a favor and always replace them in pairs.

-GH

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For Now:
1992 Mercedes Benz 500SL
1998 BMW 528i
2003 Honda Element
2002 CBR600F4i
1977 Coachmen Motor Home

Thanks Professor, but as the roof will not drop down on the one side I'm unable to retract it manually.