51 21 140 Removing And Installing/Replacing Complete Lock Cylinder In Left Or Right Front Door

Compact Only:

Lever out cover (1).

NOTE: 2 Cover for outside handle. 3 Cover for adjusting door lock.

Fig 1: Identifying Lever Out Cover

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Convertible/Coupe Only:

Only lever out cover (1) to such an extent that bore (2) is accessible.

Fig 2: Identifying Cover (Coupe)

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Saloon/Sedan/Touring Only:

Lever out trim (1).

Fig 3: Removing Trim

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Installation:

Fit new plate (1).

Fig 4: Releasing Trim Screw
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All Models:

Release screw (1).

NOTE: Thread of screw (1):

M5 Build date from 09/00.

Removing cover (1) on outside handle:

(A) Pull cover (1) approx. 1 to 2 mm towards rear.
(B) Detach cover (1) with lock cylinder (2) towards outside.

Fig 5: Removing Cover On Outside Handle
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Installation:

Notch (2) on paddle mount (1) must be secured in catch (3).

Only in this position will installation of the lock barrel be guaranteed.

Fig 6: Identifying Notch On Paddle Mount

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Replacement only:

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

Fig 7: Removing Cover From Lock Cylinder

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Installation:

3 Lock cylinder

Fig 8: Locating Catches On Cover

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