Central locking system E60, E61, E63, E64: Introduction

WARNING: This page does not describe the selected car, but rather 21 other vehicles, including the 2006 BMW Z4, 2006 BMW M3, 2006 BMW M Roadster, 2006 BMW M Coupe, and 2006 BMW 550i. However, it is still accessible from the selected car via links, so may be relevant.

The Car Access System (CAS) monitors all the processes in the central locking system. The CAS control unit is the master control unit for the central locking system.

Up to 09/2005, the central locking system on the front doors is actuated by the door modules (driver's door module and front passenger door module).

> From 09/2005

The door modules are discontinued. The central locking system on the front doors is actuated by the body gateway module (KGM).

For more information, refer to SYSTEM OVERVIEW OF CENTRAL LOCKING SYSTEM: E60, E61, E63, E64 .

The following central locking drives are controlled by the body basic module (KBM):

Rear doors (E60, E61 only)
Rear lid
Fuel filler flap
Rear window (E61 only)

The CAS control unit uses the requests from various operating points (e.g. lock cylinder, remote control) to decide what needs to be done:

Locking/deadlocking the central locking system
Unlocking the central locking system