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Home >> BMW >> 2012 >> 335xi Automatic Trans >> Repair and Diagnosis >> Electrical >> Gauges >> Body Equipment - Repair - E92 >> Front Door Locks, Handles, Fittings >> 51 21 140 Removing And Installing/Replacing Complete Lock Cylinder In Left Or Right Front Door

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

Lever out seal (1) and release screw in area (A).

Installation: 

Make sure seal (1) is correctly seated on door.

Fig 1: Removing Seal
G09850864Courtesy of BMW OF NORTH AMERICA, INC.

Pull off cover (1) with ignition key in direction of arrow with outside door handle (2) opened slightly.

Fig 2: Pulling Off Cover With Ignition Key
G09850865Courtesy of BMW OF NORTH AMERICA, INC.

Version with light package: 

Installation: 

Make sure outside door handle light (1) is correctly positioned in area (2).

Guides (3) of outside door handle light (1) must be correctly seated in carrier for outside door handle (4).

Fig 3: Guides Of Outside Door Handle Light
G09850866Courtesy of BMW OF NORTH AMERICA, INC.

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

Installation: 

Catches (1) of cover (2) must not be damaged.

Paddle (4) of lock cylinder (3) must not be damaged.

Fig 4: Disconnecting Cover From Lock Cylinder
G09850867Courtesy of BMW OF NORTH AMERICA, INC.