Air Outlet Trim:

Release locks (1) and lever air outlet trim (2) out of door trim (4).

Fig 1: Removing Air Outlet Trim

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Make sure locks (1) and guides (3) are correctly seated.

Installation: 

Following parts of air outlet trim (6) must not be damaged:

1. (1) Locks
2. (2) Guides
3. (4) Seal
4. (5) Seal

Fig 2: Identifying Locks, Seal And Guides

Courtesy of BMW OF NORTH AMERICA, INC.

Coding (3) must be correctly seated in air outlet trim (6).