E-Class (W211) 2003-2009

2007 E550 E350 Sunroof operation

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Old 11-11-2010, 10:31 AM
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2007 E550 E350 Sunroof operation

I was wondering if the operation of my power tilt sunroof is operating correctly.

My question is when I close the sunroof with a single push of the button it gets to within 1.5 inches of closing it then reverses and opens to the half way position and stops. From a closed position when I push the button to open the sunroof it opens fully. I can fully close the sunroof no problem if I hold down the button. I am wondering if this is normal operation. My car is a 2007 E550.
Old 11-11-2010, 11:15 AM
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Originally Posted by motubenz
I was wondering if the operation of my power tilt sunroof is operating correctly.

My question is when I close the sunroof with a single push of the button it gets to within 1.5 inches of closing it then reverses and opens to the half way position and stops. From a closed position when I push the button to open the sunroof it opens fully. I can fully close the sunroof no problem if I hold down the button. I am wondering if this is normal operation. My car is a 2007 E550.
Yes
Old 11-11-2010, 11:35 AM
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Originally Posted by motubenz
I was wondering if the operation of my power tilt sunroof is operating correctly.

My question is when I close the sunroof with a single push of the button it gets to within 1.5 inches of closing it then reverses and opens to the half way position and stops. From a closed position when I push the button to open the sunroof it opens fully. I can fully close the sunroof no problem if I hold down the button. I am wondering if this is normal operation. My car is a 2007 E550.
No. It is NOT operating correctly. It is stopping and auto reversing as if it has encountered an arm or a head or some other obstruction. It most probably has to have the rails cleaned and lubricated, and then all will be well. (So then, technically it is operating correctly by auto reversing from an obstruction, such as increased effort required to close it. LOL)
Old 11-11-2010, 11:54 AM
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I checked the rails and they are very clean, I guess the one touch express open/close part isn't working properly. It opens fully with one touch but express close part is the problem. I believe there is a way to reset or synchronize the sunroof. Anybody know how to do this?
Old 11-11-2010, 01:01 PM
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the manual says to pull fuse for sunroof and then reinsert fuse. The tilt sunroof up and hold for 1 second. I can not pull the fuse because I can't find the fuse chart anywhere. I located two fuse boxes. One on the drivers side engine compartment by the firewall and one in the trunk, neither has a fuse chart. Ugh. Any ideas?
Old 11-11-2010, 01:33 PM
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Ok Problem solved. I took some silicone lube and sprayed a little on the rails and open and closed the sunroof a few times.

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