51 47... Removing and installing/replacing rear left or right underbody panelling

Necessary preliminary tasks: 

• Remove rear RAM-AIR LIP 

Release screw (1).

Release screws (2).

Fig 1: Identifying Rear Ram-Air Lip And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Press off sill strip slightly.

Pull out spacer clip (2) and remove underbody panelling (1).

Fig 2: Identifying Underbody Panelling And Spacer Clip

Courtesy of BMW OF NORTH AMERICA, INC.