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

NOTE: Prior to removing, pay attention to the exact installation position with respect to the adjoining components.
The operation is described on the left side; proceed in the same way for the right side.

Release expansion rivets (1).

Release catches (2).

Feed out lip (3) towards rear from underbody panelling and remove.

Installation:

If necessary, replace faulty expander rivets (1).

Fig 1: Identifying Expansion Rivets And Catches

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Catches (1) on lip (2) must not be damaged.

Fig 2: Identifying Catches On Lip

Courtesy of BMW OF NORTH AMERICA, INC.