Mercedes-Benz C-Class Coupe Operator's Manual page 74

Protection against theft
72
ATA (anti-theft alarm system)
A visual and audible alarm is triggered if the
alarm system is armed and you open:
a door
R
the vehicle with the mechanical key
R
the trunk lid
R
the hood
R
The alarm is not switched off, even if you
close the open door that triggered it, for
example.
i
If the alarm continues for more than
30 seconds, the mbrace emergency call
system automatically notifies the Cus-
tomer Assistance Center. This is done
either by text message or data connection.
The emergency call system sends the mes-
sage or data provided that:
you have subscribed to the mbrace ser-
R
vice.
the mbrace service has been activated
R
properly.
the necessary mobile phone network is
R
available.
To arm: lock the vehicle with the SmartKey
X
or KEYLESS-GO.
Indicator lamp : flashes. The alarm sys-
tem is armed after approximately
15 seconds.
To deactivate: unlock the vehicle with the
X
SmartKey or KEYLESS-GO.
To stop the alarm using the SmartKey:
X
insert the SmartKey into the ignition lock.
The alarm is switched off.
or
Press the % or & button on the
X
SmartKey.
The alarm is switched off.
To stop the alarm using KEYLESS-GO:
X
grasp the outside door handle. The Smart-
Key must be outside the vehicle.
The alarm is switched off.
or
Press the Start/Stop button on the dash-
X
board. The SmartKey must be inside the
vehicle.
The alarm is switched off.