Necessary preliminary tasks

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Remove PANEL FOR ROOF PILLAR AT REAR (D-PILLAR)
Remove COVERS FOR CAPPING
Remove luggage compartment wheel arch trim See 5147161 REMOVING AND INSTALLING/REPLACING RIGHT LUGGAGE COMPARTMENT WHEEL ARCH TRIM or 5147151 REMOVING AND INSTALLING/REPLACING LEFT LUGGAGE COMPARTMENT WHEEL ARCH TRIM

Release screws (1).

Right side only: Release screw (2).

Feed out capping (3) towards top/rear.

Fig 1: Identifying Screws And Capping

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Guide (1) of capping (2) must be inserted into mountings (3) in body.

Fig 2: Identifying Guide Of Capping And Mountings

Courtesy of BMW OF NORTH AMERICA, INC.