51 17 400 Removing and installing/replacing bump stop with ejector for filler flap

Release cover (1).

Press catches (2) together and pull out ejector (3).

Installation: 

Install ejector (3) with fitted cover (1).

Fig 1: Installing Injector With Fitted Cover

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

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

Make sure cover (3) is correctly seated on ejector (2).

Fig 2: Identifying Catches On Injector

Courtesy of BMW OF NORTH AMERICA, INC.