51 21 090 Removing and installing/replacing door lock in left or right front door (up to 09/00): Notes

WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 2006 BMW 330Ci, 2005 BMW 330xi, 2005 BMW 330i, 2005 BMW 330Ci, and 2004 BMW 330xi. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: The work is identical for all E46 models up to year of manufacture 09/2000. The components are simply adapted to the different door geometries.

A 4 mm A/F Allen key is required for adjustment.

Detach power window rail at rear (do not remove). See 51 33 000 Removing and installing electric window regulator in left or right front door

Driver's side only:

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

NOTE: Coupe up to 25.05.1999 only:

In event of malfunction at door lock, refer to appropriate Service Information.

Disconnect plug connection (1) on door lock (2).

Fig 1: Disconnecting Plug Connection On Door Lock

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Remove door lock (2) with linkage (3).

Installation:

Insert linkage for locking knob through opening in inner door plate.

Do not bend linkage (3).

Make sure that the lock lever is inserted between the "outside door handle" support member and outer skin.

Replace screws (1).

Tightening torque. Refer to BODY EQUIPMENT - TIGHTENING TORQUES .

Fig 2: Releasing Screws

Courtesy of BMW OF NORTH AMERICA, INC.

CAUTION: Do not close door while installing door lock and lock barrel.
It is not possible to open the door when the adjusting screw is released.
Secure door against closing.

Installation:

Left door lock of front door:

Slacken adjusting screw (1) on door lock (2) (turn counterclockwise, as shown in illustration), the lock lever (3) can thus be moved.

Fig 3: Installing Slacken Adjusting Screw On Door Lock