My sunroof on my 190D is stuck. it´s electrical and I would like to fix it. But to fix it I have open the sunroof. Anyone have any ideas how to open the damn thing. the manual override in the trunk does not do the trick either. I have an idea to what´s wrong. I thing that the tleflex tube is no longe atached to the sunroof. But How do I open it????? 
