
Hi Dave, I
did not rotate when putting it back in and I simply cannot remember how I got it out BUT do remember trying to rotate it a number of times and ways. A posted .pdf in one of the 'headliner' replacement posts specifically says it does not need to be rotated, so again, I did not rotate it when re-installing it. I also want to thank you for creating the .pdf, it is just another example of your notable generosity of time and effort. The 'cheap' China trim clips were bought off 'fleabay' (
50x Oem Mercedes Benz Inner Door Trim Panel Clips Retainer Fastener 0039884178 | eBay ), the OEM MB part number is (according to another member post in my 'headliner' post) as:
Mercedes A 0119887678 Interior Panel Fastener Clip BUT, all my 'clips' did not look like the one in that link (specifically that 'black' gasket type ring). The ones I bought worked/measured out/and fit exactly as the ones I took out. The ONLY difference was (again, as noted in my OP) that the 'top' circular disk had a small section missing and that missing section
did not have any impact on its successful use. Might be a 'new/improved' upgraded one in that MB link but the source of that link was another members post in my OP.

I do know I tended to babble some in the OP, but if you have it printed in front of you when your doing the removal/install, it could help a lot. A lot of the rear 4 trim panel stuff, and those two flat panels below the rear side triangle windows, can be dropped IF you can get to those two 'pins' on either side of the rear headliner AND you can slide the headliner rearward a little before lowering the front of the headliner. Before I saw some of the other posts, I had decided to remove all those rear trim panels, so I could get a much better 'grip' on what was mounted, and where the mounting portions were. I just hope the tutorial can help others do a super job no matter which way they get it done. Thanks again for the .pdf!
.