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Home >> BMW >> 2018 >> M4 2D Convertible, Automatic DCT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 99 (Body Equipment - Repair) >> Front door Lock, handle >> 51 21 090 Removing and installing/replacing door lock in left or right front door (from 09/00) >> Coupe/Convertible:

51 21 090 Removing and installing/replacing door lock in left or right front door (from 09/00): Coupe/Convertible:

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.

For the Coupe, the door lock (4) is adapted to the different door geometry.

The illustration shows the left driver's door lock.

The adjusting procedure is identical to that for the Saloon.

IMPORTANT: Spring (3) must be fitted and must not be damaged.
  1. Bowden cable holder for outside door handle
  2. Adjusting screw (4 mm WAF)
Fig 1: Identifying Bowden Cable Holder For Outside Door Handle
G03124326Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Right door lock of front door:

Slacken adjusting screw (1) on door lock (2) (turn in clockwise direction, as shown in illustration) - this makes the Bowden cable mount (3) movable.

NOTE: The Bowden cable mount (3) is still shown in the illustration as lock lever (3), but is similar to that in Fig. R51 2804.
Fig 2: Identifying Slacken Adjusting Screw On Door Lock
G03124327Courtesy of BMW OF NORTH AMERICA, INC.


Lever out sealing cap (1) for following adjustment.

Fig 1: Identifying Lever Out Sealing Cap
G03124328Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

After installing lock cylinder (51 21 140) and/or cover (51 21 180), lever out sealing cap (2).

Tighten down adjusting screw (2) on door lock and fit sealing cap (1).

Tightening torque. Refer to BODY EQUIPMENT - TIGHTENING TORQUES .

Fig 2: Tightening Adjusting Screw
G03124329Courtesy of BMW OF NORTH AMERICA, INC.