51 21 140 Removing and installing/replacing complete lock cylinder in left or right front door

Lever out seal (1) and release screw in area (A).

Installation:

Make sure seal (1) is correctly seated on door.

Fig 1: Door Lock Cylinder Seal, Screw Area And Removal Direction

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Pull off cover (1) with ignition key in direction of arrow with outside door handle (2) opened slightly.

Fig 2: Door Handle, Cover And Removal Direction

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Version with light package:

Installation:

Make sure outside door handle light (1) is correctly positioned in area (2).

Guides (3) of outside door handle light (1) must be correctly seated in carrier for outside door handle (4).

Fig 3: Outside Door Handle, Light, Positioning Area And Guides

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Remove catches (1) and detach cover (2) from lock cylinder (3).

Installation:

Catches (1) of cover (2) must not be damaged.

Paddle (4) of lock cylinder (3) must not be damaged.

Fig 4: Catches, Cover, Paddle, Lock Cylinder And Removal Direction

Courtesy of BMW OF NORTH AMERICA, INC.