51 16 342 Removing and installing/replacing lock cylinder for passenger airbag deactivation

WARNING: This page is about a different car, the 2005 BMW 645Ci and 2004 BMW 645Ci. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Individual Parts/Switch For Passenger Airbag Deactivation

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(1) Ignition key (2) Lock cylinder (3) Switch housing (4) Sealing ring (5) Guide (6) Switch unit (7) PCB (8) Housing Cover (9) Screws

Remove switch for passenger airbag deactivation.

Release screws (1). Remove housing cover (2) and PCB (3) underneath.

Fig 2: Releasing Screws (1), Removing Housing Cover (2) And PCB (3)

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Remove switch unit (1) in upward direction. Installation: Switch unit (1) can only be installed in one position. PCB (4) can be inserted turned through 180°. Position of magnet sensor (3) of PCB (4) must match up with permanent magnet (2) of switch unit (1).

Fig 3: Removing Switch Unit (1) In Upward Direction

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Remove guide (1) in upward direction. Installation: Guide (1) can only be installed in one position. Fit seal (2) on guide (1) and insert in switch housing

Fig 4: Removing Guide (1) In Upward Direction

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IMPORTANT: Ignition key must be inserted in lock cylinder, otherwise this will be destroyed when removed.

Important! Ignition key must be inserted in lock cylinder, otherwise this will be destroyed when removed. Insert ignition key in lock cylinder (2). Carefully release catches (1) in outward direction and press out lock cylinder (2) with ignition key.

Fig 5: Carefully Release Catches (1) In Outward Direction And Press Out Lock Cylinder (2) With Ignition Key

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: Lock cylinder (2) can only be inserted in "ON" or "OFF" switch position. Lock cylinder.