51 21 090 Removing and installing/replacing door lock in left or right front door

Necessary Preliminary Tasks:

Remove door trim panel. Refer to 51 41 000 REMOVING AND INSTALLING FRONT LEFT OR RIGHT DOOR TRIM PANEL .
Release rear guide rail of power window. Refer to 51 33 000 REMOVING AND INSTALLING (REPLACING) POWER WINDOW UNIT IN LEFT OR RIGHT FRONT DOOR .
Release cable on inside door handle. Refer to 51 21 225 REMOVING AND INSTALLING/REPLACING INSIDE HANDLE ON LEFT OR RIGHT FRONT DOOR .

Driver's Side Only:

Remove outside door handle. Refer to 51 21 170 REMOVING AND INSTALLING/REPLACING OUTSIDE HANDLE ON LEFT OR RIGHT FRONT DOOR .

Passenger Side Only:

Pull door handle cable (1) downwards to disconnect cable from door locking lever (2).

Disconnect door handle cable (1).

Installation:

Make sure cable is correctly routed.

Fig 1: View Of Door Handle Cable

Courtesy of BMW OF NORTH AMERICA, INC.

Release Bowden cable from clips (1 and 2).

Remove grommet (3) of Bowden cable from inner door panel.

Feed Bowden cable back through opening.

Fig 2: Identifying Grommet Of Bowden Cable

Courtesy of BMW OF NORTH AMERICA, INC.

Driver's Side Only:

Remove rubber plug (1) and screw (2).

Tightening torque, refer to 51 21 3AZ in BODY EQUIPMENT - TIGHTENING TORQUES - COOPER (1.6L) R50/W10 .

Fig 3: Removing Rubber Plug And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Detach plug connector (1) from door lock.

Remove linkage (2) from door lock.

Fig 4: Locating Linkage From Door Lock

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Tightening torque, refer to 51 21 4AZ in BODY EQUIPMENT - TIGHTENING TORQUES - COOPER (1.6L) R50/W10 .

Fig 5: Identifying Lock Retaining Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Driver's Side Only:

Release lock cylinder (1) on outer side of door.

Remove door lock and lock cylinder (1) from door.

Installation:

Make sure lock cylinder is correctly connected to door lock.

Passenger Side Only:

Remove door lock.

Installation:

Before being installed in the door, the guide of the door lock cable must be correctly positioned.

Fig 6: Identifying Door Lock And Lock Cylinder

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement:

Remove screw (1) and then door lock lever (2).

Tightening torque, refer to 51 21 5AZ in BODY EQUIPMENT - TIGHTENING TORQUES - COOPER (1.6L) R50/W10 .

Remove cable guide (3).

Fig 7: Locating Door Lock Lever

Courtesy of BMW OF NORTH AMERICA, INC.

Remove cover (1).

Remove outer Bowden cable (2) from door lock.

Remove inner Bowden cable (3) from door lock.

Fig 8: Removing Outer And Inner Bowden Cable From Door Lock

Courtesy of BMW OF NORTH AMERICA, INC.