[Guest (MBNZ)]

Who is experiencing same complaints about the panoramic sunroof on C-sportcoupe? It creaks when driving on uneven pavement and going over speedbumps diagonally. Please give me some input. Is this a construction fault?

 

[Guest (MBNZ)]

I don't have one of these cars, but both of the conditions that stimulate the creaking are such that it must be bodyshell flexing that's the culprit. Undoubtedly, the lack of a proper roof would somewhat compromise the stiffness of the bodyshell, compared to the regular car and certainly compared to the sedan. I am fairly sure about that.<br> <br> Now whether the creaking can be minimised by some sort of adjustement, I don't know. In any case, the root cause is bodyshell flex.