My sunroof opens about 2 inches, start to make a lot of noise and will not open any futher. When I try to help it with one hand pushing and the other pressing the open button, it can open completely. There is no problem closing it. The closing process works perfectly.

When I try to open it over the 2 inches position (without helping it), it makes a lot of noise and I feel the motor forcing. I see I can damage something.

There is no problem going to the tilt (angle) open position.

Does anyone know what is causing this ? Does anyone have the instructions on how to fix this or remove the sunroof?

It's sounds like it's out of synch. Open the tilt feature, and hold the button in "open" for about 10 seconds.

If that doesn't fix it, then I have no idea of what to look for next. Sorry.

__________________
John Shellenberg
1998 C230 "Black Betty" 240K

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Sounds like the control cables are comming out of their tracks! Sunroof work should be left to a PRO!

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Sorry, this is not a synchro problem. This is not a cable problem too. The cable is in its track. So thanks for the time you have taken to post your messages and for your advices.

If by any mean you would happen to know where I can find instructions to get this sunroof removed, I would greatly appreciate.

Thanks

My sunroof moved very slowly when closing when I first got my car. I greased the rails, and it has been fine ever since.

I'm not sure what you can do to fix it, but is there a chance something is caught in the rail?

Maybe it needs to be greased a bit?

Maybe its a gear that is is slipping in the sunroof motor?

I'm no tech, Just brainstorming on things that could be a culprit. I'm a good troubleshooter when it comes to mechanical things, and I try my best to come up with things that might not be obvious, or that might seem way out there, I usually find that trying things that are way out there, can sometimes produce the results needed to fix the problem.

Good luck on your search for a repair.

Personally I would have a sunroof shop take a look at it. Have you looked up ASC? They do sunroofs, I'm not sure if there is one where you are, but I know there is one in los angeles somewhere.

Alon

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'92 300CE - Sold
2004 C240 - 744 - C7 Wheels - Android Radio
2002 C320 - 816 - Sport Wagon

You might want to follow suggestion by MB DOC. Sunroof on late model vehicles are not a good thing to try to take apart by a DIYer . All we can do is give advice . Personally it sounds like it needs a cable kit to me.

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euro 287
Mercedes Technician 7 Years (retired to Hyundai)
2000 Dodge Durango
98 Mazda truck

Thanks for the ideas. I have already tried to lubricate the rails. I think I will have some MB tech look at it. I will keep you posted on this.

Thanks once again.

Problem resolved,

I took a second look at the sunroof to see there was a lot of dirt around the tracks. I cleaned this up and gently oiled the 2 tracks. It now runs smoothly, just as a brand new.

Thanks for your help all. Thanks for the tip Ashman.

Daniel