51 12 157 Replacing rear bumper trim

Necessary preliminary tasks: 

• Remove rear bumper trim  
  Fig 1: Identifying Rear Bumper Trim Components

  Courtesy of BMW OF NORTH AMERICA, INC.

Remove reflector (1).  (not M5). See 63 14 120 REMOVING AND INSTALLING/REPLACING REAR REFLECTOR .

Remove cover cap (2) for tow lug.

If necessary, remove flap for towing hitch (3) (not M5).

Version with Park Distance Control: 

Remove all ultrasonic transducers (4). See  66 20 540 REMOVING AND INSTALLING/REPLACING A REAR ULTRASONIC TRANSDUCER (PARK DISTANCE CONTROL)  . 

Remove wiring harness (5) for ultrasonic transducers.

Fig 2: Identifying Catches And Frame

Courtesy of BMW OF NORTH AMERICA, INC.