Door Lock Assemblies

The door lock and ZV drives consist of a single integrated unit. The door lock assembly contains two servo motors, the locking mechanism and hall sensors for position sensing. The hall sensors signal:

• Door contact (open or closed)
• Position of mechanical lock (locked/ unlocked)

If the vehicle is equipped with the optional soft close doors there is an additional motor for pulling the door closed as well as two more hall sensors. The hall sensors signal:

• "Stand-by" position
• "Locking pawl switch" position
  Fig 1: Identifying Door Lock Assemblies

  Courtesy of BMW OF NORTH AMERICA, INC.

The Drivers lock assembly contains two hall sensors for the signalling of the position of the external lock cylinder in the drivers door. The hall sensors signal:

• Unlock request
• Lock request

The rear doors are equipped with child lock out switches preventing the rear doors from being opened from the inside.