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

Lever out cap (1) and release screw underneath.

Installation note:

If necessary, replace faulty trim (1).

Fig 1: Identifying Cap

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Insert ignition key into lock barrel.

Turn ignition key slightly and pull off cover (1) in direction of arrow with outer door handle (2) opened slightly.

Installation note:

Lock barrel must be correctly seated in door lock.

Check function of lock barrel.

Fig 2: Pulling Door Handle Cover

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Version with light package:

Installation note:

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 support for outer door handle (4).

Fig 3: Identifying Outer Door Handle And Guides

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Replacement

Remove latch mechanisms (1) and detach cover (2) from lock barrel (3).

Installation note:

Latch mechanisms (1) of cover (2) must not be damaged.

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

Fig 4: Removing Door Latch Mechanisms

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