51 12... Remove and install/replace rear bottom cover bumper trim (M Aerodynamics package)

Necessary preliminary tasks: 

• Remove REAR BUMPER TRIM 

Release expanding rivets (1).

Release latch mechanisms along line (2) and remove cover (3).

Installation note: 

Latch mechanisms must not be damaged or missing.

Fig 1: Identifying Sound Insulation Line

Courtesy of BMW OF NORTH AMERICA, INC.