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  #1  
Old 12-30-2002, 05:49 PM
americor
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Unhappy 1993 400SEL (W140) Sunroof Problem

HELP!!! My 1993 400SEL (W140) sunroof will open up and down, but will not slide open. Any ideas
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  #2  
Old 12-30-2002, 06:50 PM
ILUVMILS's Avatar
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MORE INFO!!! Does it try to open? Any noises prior to failure? Has it been worked on previously? HELP!!!
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  #3  
Old 12-30-2002, 07:01 PM
americor
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Thanks ILUVMILS for the reply. It tries (makes noise) to slide back, but doesn't.
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  #4  
Old 12-31-2002, 05:11 PM
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Most likely a broken lifting or sliding angle bracket. This requires removal of the roof panel to repair. It's really not that hard to do, but it can be a bit confusing if youv'e never done it before. A thorough read through of the work instructions to familiarize yourself with the procedure would be a good idea. By the way, is it a glass roof or sheet metal?
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  #5  
Old 12-31-2002, 05:23 PM
americor
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Thanks again!!! It is metal. Where can I find detailed instructions on how to remove the sunroof and repair the bracket??
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  #6  
Old 01-01-2003, 11:06 AM
cobra
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Did they make a glass roof for the 93' 400sel?
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  #7  
Old 01-01-2003, 02:28 PM
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ummmmmm

nope
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  #8  
Old 01-01-2003, 02:53 PM
cobra
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So...my next question. What was the first year for the glass version and will it fit into a 93'?
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  #9  
Old 01-03-2003, 05:03 PM
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Glass Roof 92 and on SEL

The glass roof was an option, both factory and dealer installed. The proceedure is involved and centers around removing the metal moon roof adding different brackets/seals etc. There was a service bulletin describing the process. Finding all the parts could be difficult. There are also two special tools refenced and the bulletin allowed 3.5 hrs of labor to install.
The bulletin starts ou by telling you to verify that you have all the parts and going on to discard the metal panel and the sliding roof panel. Bulletin 280 Group77 dated july1992.
I dnt know if I would attempt it unless you have parts & tools
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  #10  
Old 01-03-2003, 06:09 PM
cobra
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Would anyone have a copy of the above mentioned service bulliten?
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  #11  
Old 01-04-2003, 03:09 PM
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I did this retrofit, last year. Parts are no problem but expensive. I can't remember exact price something like $1300. I did not use any special tools. Here is Work Instruction 280:
Attached Files
File Type: zip sunroof retrofit.zip (58.6 KB, 273 views)
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  #12  
Old 01-04-2003, 10:36 PM
cobra
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Great! Thanks for the info Myamar, this will make a nice spring project......
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  #13  
Old 11-21-2007, 05:19 PM
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Quote:
Originally Posted by ILUVMILS View Post
Most likely a broken lifting or sliding angle bracket. This requires removal of the roof panel to repair. It's really not that hard to do, but it can be a bit confusing if youv'e never done it before. A thorough read through of the work instructions to familiarize yourself with the procedure would be a good idea. By the way, is it a glass roof or sheet metal?
Any Idea where i can find these directions??
I've messed mine up. It was going back and forth but not up and down. I decided it'd be a good idea to punch/force it up. Now the drivers side goes up and down but the passenger side is limp, and it no longer slides back and forth.
I've really got to realize that brute force just doesn't work with the W140.
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  #14  
Old 07-31-2009, 06:55 PM
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Hi guys,

on my 93 300SD W140, the sunroof (glass), won`t close more than, say, 40 percent. It goes back and forth, but won`t pass that point.

I think something is holding it on the left side (drivers side).

Does anyone have any idea how to go about fixing this ?

Thank God it`s not raining...
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  #15  
Old 08-01-2009, 08:35 AM
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W140s have soundproofing insulation glued to the under side of the roof inside the sunroof well. This stuff is famous for falling down and screwing-up the sunroof slider mechanism. It looks like paper-backed linoleum tile and is glued to the roof with a very sticky tar-like substance. The problem is that in warm climates this tar liquefies in the hot sun and allows the insulation to fall down. I had this problem on both my cars.

It's relatively easy to fix if you can get the sunroof enough to slide something in there and knock the insulation out of the way. I actually went so far as to remove the sliding liner under the roof. I was then able to reach in with my hands and various tools and completely pull the stuff out.

Here's a link to a photo DIY I posted on benzworld. One thing to note is that this procedure was done on a car with a glass sunroof. This may or may not work for a metal one.

http://www.benzworld.org/forums/w140-s-class/1448445-photo-diy-removing-sunroof-liner.html
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