51 43 320 Remove and install/replace left D-pillar trim panel, (Countryman 2017-2023, except PHEV)

Removal: 

Release trim panel (1) at clips (2) and feed out upwards out of the guides.

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

NOTE: Clips (2) must not be damaged or missing.
Feed trim panel (1) downwards into the guides and clip in clips (2).

Courtesy of BMW OF NORTH AMERICA, INC.