Anti-Theft Protection - Mercedes-Benz S-Class Owner's Manual

102 Opening and closing

Anti-theft protection

Function of the immobiliser
The immobiliser prevents your vehicle from
being started without the correct key.
The immobiliser is automatically activated when
the ignition is switched off and deactivated when
the ignition is switched on.
ATA (Anti-Theft Alarm system)
Function of the ATA system (anti-theft alarm
system)
If the ATA system is primed, a visual and audible
alarm is triggered in the following situations:
when a door is opened
R
when the boot lid is opened
R
when the bonnet is opened
R
when the interior protection is triggered
R
( page 103)
→
when tow-away protection is triggered
R
( page 103)
→
The ATA system is primed automatically after
approximately 10 seconds:
after locking the vehicle with the key
R
after locking the vehicle using KEYLESS-GO
R
When the ATA system is primed, indicator lamp
1 flashes.
The ATA system is automatically deactivated:
after unlocking the vehicle with the key
R
after pressing the start/stop button with the
R
key inside the vehicle
after unlocking the vehicle using KEYLESS-
R
GO
% When the Mercedes‑Benz emergency call
system is active and the alarm stays on for
more than 30 seconds, a message is auto‐
matically sent to the Customer Assistance
Centre ( page 401).
→
Deactivating the ATA
Press the %, & or p button on the
#
key.
or
Press the start/stop button with the key in
#
the stowage compartment ( page 195)
→
Deactivating the alarm using KEYLESS-GO:
Grasp the outside door handle with the key
#
outside the vehicle.