ataie

I have to press the moonroof button about 10 times to get the roof to open completely. each time it's pressed it goes back about an inch and stops. is there something that needs to be programmed, like holding the buttons down etc to get it to do the one push open?? thanks 05 E500 sport

madelko

This happened on my 99 and to correct whatever went wrong, I tried the reset function: With the roof closed, open the rear vent feature and hold it up for five seconds, at first it seems it is all the way up (open) but then it will go up just a little bit more and then it is reset.

Worked for me -

ataie

AWESOME....... that got it done. it's working now. thanks you

Roehl

This is awesome. All the issues with problem solved should be stickied.

dsm2925

Agreee

blueacc333

moonroof/sunroof, opens 1 inch at a time
I have to press the moonroof button about 10 times to get the roof to open completely. each time it's pressed it goes back about an inch and stops. is there something that needs to be programmed, like holding the buttons down etc to get it to do the one push open?? thanks 05 E500 sport

I got a C300.. and having the same problem.... I tried to do the same process in order to reset the setting of the moonroof... but it didn't work for me... It works fine while opening.. but not closing... it just stop and go... I have to hold the button at all time... Any advises????? thanks

konigstiger

I recommend cleaning/lubricating the rails covered under warranty if out of warranty PM email address and I will forward instruction sheet.

Solid1

This worked on my 04 E500 in about 10 seconds!

Thanks

bjp1874

Just did the trick on my 2007 E63. Thanks!

SA187

THANK YOU!! worked for my 05 e500

homeofstone

I found that a complete reset for all switch positions is necessary sometimes. with roof open all the way back hold the switch for opening for 10 sec. then close and hold for 10 sec. then flip up and hold for 10 then down and hold for 10. This worked on my 2005 E500 w211.

MBAlexandria

Thanks, I had the same thing happen to me this morning, and the reset worked for me, too. Thank you for the tip!!

Onyxthecat

Just had this happen in my 06 E500 and this worked. Thanks

jmgincs

I looked every where to try and fix this and your solution worked perfectly, thank you.

austin94

Mine on my 2009 E350 only opens, closes, and vents up a little at a time. I had to push the button probably 10-15 times to get it to open/close all the way. I tried resetting it and it's still not working... maybe I'm dense and doing it wrong... Do I have to open it all the way and then hold for 10 seconds? then close all the way and hold for 10 seconds, then open vent all the way and hold for 10 seconds? I've tried it so many times doing it different was to no avail...Any advice?

konigstiger

Try reset several times if it fails on first attempt. Cannot reset at all, consider cleaning/lubricating. Do not use WD40, Plastilube multi-purpose lubricant works well.

LexBrett2

You disconnected the battery at some point and now the sunroof needs to be resynched.

wilcur02

This worked for me as well. Thank you!

Jarrod Hagenman

I figured with my luck this trick wouldn't work. I was wrong. It worked! In the past month I've had to replace the intercooler & all the seals/gaskets & the turbo. I only got 127k this year. I miss my 85 300D

Buttsnet

Thanks so much. Worked like a charm on my 2004 E500. I signed up for this forum just so I could recommend this posting.
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