Removing and installing/replacing door lock in left or right front door (330i GT xDrive, 340i GT xDrive)

WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 2019 BMW 340i GT xDrive, 2019 BMW 330i xDrive, 2019 BMW 330i GT xDrive, 2018 BMW 340i GT xDrive, and 2018 BMW 330i xDrive. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

51 2 190

Necessary preliminary tasks:

Remove front SOUND INSULATION .

Lift cover (1) and slacken nut (2).

Installation note:

Nut is tightened during adjustment of side window.

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Disengage Bowden cable (2) from outer door handle at marked position.

IMPORTANT: Door cannot be opened if Bowden cable is incorrectly laid.

Installation note:

Bowden cable (2) must be correctly engaged in mountings on door lock.

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Bowden cable (2) must be laid without kinks in bend to door lock.

Sealing must be installed correctly on Bowden cable.

Carry out function check with door open.

Driver's side only:

Make sure locking pin (1) is correctly seated in mounting of door lock (3).

Lever out locking rod (1).

Unfasten plug connection (2) and disconnect.

Release screws (3).

Feed out door lock from door.

IMPORTANT: Do not damage door lock seal on removal (water ingress)!

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Driver's side only:

Detach door lock (1) downwards from locking pin (2) and feed out from door.

IMPORTANT: Do not damage door lock seal on removal (water ingress)!

Installation note:

Make sure locking pin (2) is correctly seated in mount (3).

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Driver's side only:

Installation note:

Schematic diagram of removed support for outer door handle.

For it to be possible to install the door lock, locking pin (1) must be in the installation position on the support (2).

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Installation note:

Install door lock (1) and screw in screws (2) but to not tighten.

Slide special tool 51 2 190 into opened rotary striker until striker engages in first stage

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Installation note:

Pre-tension door lock (1) with knurled screw (2) until special tool 51 2 190 just contacts corner points (3)

IMPORTANT: To tension door lock (1), it is only permitted to tighten knurled screw (2) by a further 1 to 1.5 turns (max.) (risk of damage).
Door lock seal must rest uniformly on inner door panel (water ingress).

Courtesy of BMW OF NORTH AMERICA, INC.

Tighten screws of door lock (1).

Observe tightening sequence: bottom - top - inner.

Tightening torque 51 21 1AZ .

Required follow-up work:

Check preload on door WINDOW GLASS and adjust if necessary