It occurs to me as I read these posts that I may not be using the correct terminology, so let me say that this post concerns the sliding interior panel underneath a glass moonroof.

I just removed this panel that I had put new fabric on a couple of years ago. The stuff from Joann was too thick. I feared that it had broken the mechanism, but when I removed it I found that my problem related to a part on the back of the panel itself. On either side of the panel is a thin (maybe 1/4 inch) strip of plastic that runs from the front of the panel to the back. It hooks in and helps to secure the original vinyl, as well as a thin cloth strip that actually slides on the metal underneath. One of mine had come out and gotten scrunched up, either because I did a bad job of installing it, or the extra thickness of the fabric compared to the original vinyl was just too much.

I think I'm going to remove the headliner fabric, and put something thinner on there. I still don't know if I'm going to remove the whole headliner. Since my moonroof isn't broken, I won't be forced to, other than for fixing the sag.

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