Hi my 08 w211 e550's pano roof is creaking and it can be heard at low speeds and when going over road bumps and such. It makes no noise when opened as far as I can tell. I tried to put some WD40 on the rails but that hasn't helped. If I physically push on the roof I hear a loud creak so I know it has to do with lubrication but I don't know where to apply it. I would rather not take it to the dealer over a "cosmetic" issue. Thanks.

 

WD40 is the worst to use--check the dealer for the correct grease\location then use the internet as a source

 

Here is a thread with info and some things that have worked for others
https://mbworld.org/forums/w211-amg/...es-creeks.html

 

Try opening the roof the smallest amount, and sometimes the noise will go away. To fix the problem the roof needs cleaning and regreasing with the proper Mercedes lubricants.

 

i had the same issue with my car...after a lot of hard driving and turns the creaking eventually went away. i drive like a maniac all the time. mine would creak over any bump while pano roof closed. open was never an issue.