Removing both trims on the tail light

NOTE: Description is for left component only. Procedure on the right side is identical.

Removing the trim on the tail light

Unclip the trim on the tail light (1) from the detents (2) in the direction of the arrow.
Release the trim on the tail light (1) from the clip (3) in arrow direction.

Courtesy of BMW OF NORTH AMERICA, INC.