u/Earthlinkz

I’ve got a 2018 Mercedes CLA180 Shooting Brake (X117), and I noticed an issue with the rear door window trim.

The rubber seal at the top (where the window meets the trim) is starting to crack, and the gloss black pillar piece is also fading/discoloring. I’ve attached some photos, you can see the small cracks forming in the rubber.

Does anyone know:
- If this rubber can be replaced separately, or is the whole trim piece one unit?
- If repair is possible (e.g. rubber restoration or sealant), or if replacement is the only real fix?
- The correct part name for this piece? I believe it’s something like the rear door window trim / window guide?

Any advice or experience with this would be appreciated!