Sunroof problem, please help!
Thread Starter
Junior Member
Joined: Sep 2010
Posts: 37
Likes: 2
w220
Sunroof problem, please help!
I recently got my headliner in my 03 s500 redone because the previous owner had stained it. Now, when go to open the sunroof it moves a few centimeters then stops, and I have to keep hitting the button repeadtedly to get it to fully open. The weird thing is, it closes fine without problems. The tilt function is also acting funny.
I did the push gas 5 second ect ect thing to reset the ecm but it didnt help. I also tried holding it in one position for 10 seconds and that didnt help either. The interior guys said that they called the local benz dealership and they said that sometimes if you disconnect a certain swich(involving the sunroof) that if it is going bad, it can cause it to get worse by disconnecting it(sounds like bs).
Any ideas? The material that I switched the headliner to is thicker if that matters.
Thanks guys, I really need help here
I did the push gas 5 second ect ect thing to reset the ecm but it didnt help. I also tried holding it in one position for 10 seconds and that didnt help either. The interior guys said that they called the local benz dealership and they said that sometimes if you disconnect a certain swich(involving the sunroof) that if it is going bad, it can cause it to get worse by disconnecting it(sounds like bs).
Any ideas? The material that I switched the headliner to is thicker if that matters.
Thanks guys, I really need help here
Member
Joined: Apr 2010
Posts: 111
Likes: 1
From: Stn Mtn Georgia
2005 S500
mines opens with the first push. sometimes it closes and stops and i have to push the button again. This is when the tracts may have some thing in them so try cleaning the tracts and lubricate (not sure what MB uses). it is like the door windows if something blocks them they will stop and go in the opposite direction for a while.
Thread Starter
Junior Member
Joined: Sep 2010
Posts: 37
Likes: 2
w220
Thanks for the help so far guys. Maybe I didnt explain what its doing properly. When I hit the open function,it opens about 1/2 inch, then I release the button and hit it again and it only opens another 1/2 inch. I have to keep on repeatelly hitting the button probally 20 times to get the roof fully open. 
Junior Member
Joined: May 2010
Posts: 17
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2003 Mercedes S-430
cassette
hey i have the same problem on my s430. It started to act like that and then i just left it closed for a while and now it never opens. I was told its the sunroof cassette thats messed up. A new cassette is 1800 to replace so i just keep my sunroof closed. just make sure u dont open it too far and then cant close it.
Junior Member
Joined: Jan 2010
Posts: 43
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From: Long Island
2000 S500
sunroof problem
I too had the problem open the sunroof all the way when it is fully open keep your finger on the button for 5 to 10 seconds close it and see if it works if not try 1 or 2 more times that usually frees it up mine works fine now good luck
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300E a couple 1994 w124wagon E320 Wagon/,1971MGB Track/Rally, MG Midget Autocross ,2000 E320 wagon.
See if you
can reset resync it via your express feature on the key.If the car is so equipped.pop doors keep pressing key after door popped until sunroof is open.lock doors repeat holding till sunroof closed.
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w220 s350
