BMW M3 2001 Bedienungshandbuch PDF herunterladen (Seite 33)

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Index Data Technology Repairs Car care Controls Overview

Electronic vehicle immobilizer Central locking system

The key to security

Your BMW is equipped with a passive

anti-theft system. This electronic immo-

bilization system is designed to reduce

the susceptibility of the vehicle to theft

by making it impossible to start the

engine using any means other than the

special keys furnished with the vehicle.

Your BMW center can cancel the elec-

tronic system authorization for indi-

vidual keys (in the event of loss, for

instance). A deactivated key can no

longer be used to start the engine.

How the electronics work

At the heart of this system is an elec-

tronic chip that is integrated into the

key. The lock mechanism itself is actu-

ally a dual-function device, simulta-

neously serving as a communications

interface designed to allow the security

system to maintain a continuous stream

of variable, vehicle-specific signals with

the electronic circuitry in the key. The

system will not release the ignition, fuel

injection and starter unless it recog-

nizes an "authorized" key.

Force applied to the key can

damage the integrated electronic

circuitry. A damaged key can no longer

be used to start the engine.<

The concept

The following can be unlocked or

locked simultaneously with the central

locking system:

> Doors

> Luggage compartment lid

> Fuel filler door

> Glove compartment.

The central locking system is ready for

operation whenever the driver's door is

closed.

The central locking system can be

operated

> from outside via the door lock and

using the remote control

> from inside by pressing a button.

If it is operated from inside, the fuel

filler door will not be locked (refer to

page 38).

If it is operated from outside, the anti-

theft protection is activated at the same

time. This prevents the doors from

being unlocked via the locking buttons

or the door handles. The alarm system

is also activated or deactivated.

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