Removing the the rear roof panel cover and the C pillar covers was a little tricky. The C pillar panels tend to be brittle from sun exposure. The metal clips on the panels are glued in place and the glue cracks when you remove the panels.

I used some 3M High Strength 90 adhesive to re-attach the clips and also to re-attach the drooping sound insulating foam between the headliner and the roof. Replacing the headliner in the sunroof panel was a little cumbersome as well, especially on reassembly.

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78 W116 300SD 'Desert Rose' new as of 01/26/2014
79 W116 300SD 'Stormcloud' RIP 04/11/2022