Dave Minnich

Hello everyone, first post. Does anyone have any tips for removing the rear interior panel on the passenger side? I don’t want to break any clips or tabs. I need to check the trailer wiring harness.

rapidoxidation

fcpeuro has a video that applies to the ML W166 platform. I expect the X166 is very similar.

mtm

Take off the weather seal in the back, then it's just a few torx screws (I think one is under that square plug for cargo cover bar). Then you just pull up and out.
Raise the third row seat to make taking the panel out easier, otherwise the bottom of the panel is kinda pinched in.

edit: look at this video at 1:15 time mark