51 21 280 Removing and installing or replacing door brake on left or right front door

Necessary preliminary tasks: 

• Close door windows
• Remove Sound Insulation  in front area

Release screw (1).

For tightening torque refer to 51 21 3AZ in 51 21 FRONT DOOR LOCKS .

Unfasten screws (2).

For tightening torque refer to 51 21 4AZ in 51 21 FRONT DOOR LOCKS .

Remove seal (3).

Installation: 

Seal (3) must not be damaged.

Fig 1: Identifying Seal And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Remove door retainer (1) via cutout (2).

Fig 2: Identifying Door Retainer And Cutout

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Following parts of door retainer (3) must not be damaged:

1. Hinge
2. Thread
   Fig 3: Identifying Door Retainer, Hinge And Thread

   Courtesy of BMW OF NORTH AMERICA, INC.