I have a 2006 Mercedes E-350 with an automatic rear sunshade; until a week ago the sunshade worked fine, but now it's stuck up and I can't get it to come down by any means.
The button to move the shade doesn't respond; I can hear a click in the back of the car but that's it; none of the other mechanical noises it makes when it comes down proper. I can't physically push it back down, even after loosening the arms a bit (I got it about 20% down before it stopped moving). Even after loosening the arm's position the button doesn't work, though on occasion I've heard slightly more mechanical noises after pressing the button.
I've tried several tricks Mercedes forums recommend; I had someone push down on the shade while I press the button; no luck, it doesn't move. I heard the problem might be caused by a blown fuse, but I don't know which fuse it would be or how to get to the front fuse-box, actually; I can't seem to access the driver's side primary one if it's in there. I can see the rear fuse box but can't seem to open it.
At this point I don't really care if the sun shade comes back up but I want it down; I'm content to not use it again if it's not going to work. At the same time I'd rather not break it, at least not more than it already is, because the mechanism allegedly costs something around $1500.