Necessary preliminary tasks

• Remove BUMPER TRIM 

If necessary, release rubber mount (1) on carrier (2).

Unscrew nuts (3).

Remove carrier (2).

Tightening torque, see 51 12 1AZ in 51 12 REAR BUMPER .

Installation: 

If necessary, replace faulty sheet nuts (4).

Replacement: 

If necessary, modify or replace weight on carrier (2).

Fig 1: Identifying Rubber Mount On Carrier

Courtesy of BMW OF NORTH AMERICA, INC.