Anti-theft alarm system 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 anti-theft alarm system (DWA) detects and reports attempts at intrusion and tampering with the vehicle.

New features for anti-theft alarm on E63 and E64 vehicles:

For the first time, not only the tilt alarm sensor, but also the software for the anti-theft alarm is integrated in the emergency power siren (SINE = siren and tilt alarm sensor). The DWA control unit used to date is no longer installed.
The vehicle interior is monitored by microwave sensors.
Advantage:

The microwave sensors can be installed in hidden locations.

The interior monitoring function works, for example, even when the side windows are open.
The DWA control unit in the emergency power siren is connected to the microwave sensors by a sub-bus.
When the boot-lid lock is mechanically unlocked with the key, the DWA alarm is triggered.

If an attempt is made to break into the vehicle and to enter the interior, the DWA alarm is triggered. The tilt alarm sensor (integrated in the emergency power siren) monitors the vehicle's tilt. The tilt alarm sensor detects if the vehicle is raised or towed away.

For more information, refer to E63/E64 SYSTEM OVERVIEW, ANTI-THEFT ALARM SYSTEM .

The DWA alarm gives both acoustic and visual warnings:

Acoustic alarm via the emergency power siren (interval tone for 30 seconds)
Visual alarm via lighting system (hazard warning lights)

The alarm can be encoded according to the country concerned.