rear screen

I suspect that many owners of a W211T will have a tailgate window, the wiper spindle surround of which looks like this - quite possibly a common problem. My question to our experts is this: is this metal plate available as a separate part, or is it an intrinsic part of the window glass?

Hi folks. I'm new here and looking forward to sharing tips and advice with you all. Problem as suggested in the title is with the canvas top. When closing it the fabric crumples up and so doesn't fit neatly into the `slot' of the rear screen rubber. I think the canvas may have separated from the...