51 43 259 Removing and installing/replacing trim for rear roof pillar (D-pillar), left or right

Release trim (1) inwards from clips (2) and remove.

Complete removal only with version with 3rd seat row: 

Release SCREW FOR SEAT BELT (3) .

Feed seat belt (3) out of trim (1).

Fig 1: Identifying Trim, Clips And Seat Belt

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

If necessary, replace faulty clips (1 and 2).

Make sure all clips are installed in correct position.

1. Blue clip
2. White clip
   Fig 2: Identifying Blue Clip And White Clips

   Courtesy of BMW OF NORTH AMERICA, INC.