I’m about to change the wood trim on my Sl63 for Carbon, ironically it came with Carbon but the original owner specified wood as a no cost option! Sadly you do have to remove the whole door panel as there’s metal clips holding the trim in place. There’s good tutorials on door card removal on YouTube.
Hi
Had a go yesterday, your right the door cards have to be removed. easy enough job although trying to find the small metal clips was a B------- they go every where if your not careful ha ha ha ha...
Going to have mine Carbon I think ..