Necessary preliminary tasks

• Remove REAR SEAT
• Remove REAR WINDOW SHELF

Unscrew nut (1).

Tightening torque 72 11 20AZ .

Remove inertia reel unit (2).

Installation: 

Pay attention to coding.

Fig 1: Identifying Nut And Inertia Reel Unit

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (2) on middle seat belt anchor fitting.

Tightening torque 72 11 22AZ .

Installation: 

Pin (3) determines the installation position and prevents the anchor fitting (1) from turning.

Fig 2: Identifying Anchor Fitting, Screw And Pin

Courtesy of BMW OF NORTH AMERICA, INC.