51 42... Replacing speaker cover on rear left or right door trim panel (mid-range speaker)

Necessary preliminary tasks:

Remove plastic welded joints (1) on speaker cover (2) completely.

Installation:

Speaker cover (2) can only be installed in one position.

Fig 1: Identifying Speaker Cover And Plastic Welded Joints

Courtesy of BMW OF NORTH AMERICA, INC.

Attach speaker cover (1) to door trim panel.

Secure retainers (3) to plastic guides (2) so that speaker cover (1) rests fully on door trim panel.

NOTE: Shorten protruding plastic guides (2) by measurement (A).

= 2 mm

Fig 2: Identifying Speaker Cover, Plastic Guides And Retainers
Courtesy of BMW OF NORTH AMERICA, INC.