51 13 001 Removing and installing/replacing front radiator grille, middle left or right

Press middle front radiator grill (1) upwards and pull towards front.

Fig 1: Identifying Front Radiator Grill

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

1. All catches and guides on middle front radiator grill must not be damaged.
2. Push front radiator grill (2) into bumper trim by pressing on chrome ring.
3. Fixtures (1) must engage correctly.
   Fig 2: Pushing Front Radiator Grill Into Bumper Trim

   Courtesy of BMW OF NORTH AMERICA, INC.