ATA (Anti-Theft Alarm system)
X
To prime: lock the vehicle with the key or
KEYLESS-GO.
Indicator lamp
:
flashes. The alarm sys-
tem is primed after approximately
15 seconds.
X
To deactivate: unlock the vehicle with the
key or KEYLESS-GO.
or
X
Insert the key into the ignition lock.
A visual and audible alarm is triggered if the
alarm system is primed and you open:
R
a door
R
the vehicle with the emergency key ele-
ment
R
the tailgate
R
the bonnet
X
To switch the alarm off with the key:
press the
%
or
&
button on the key.
The alarm is deactivated.
or
X
Vehicles with KEYLESS-GO start-func-
tion or KEYLESS-GO: remove the Start/
Stop button from the ignition lock
(
Y
page 157).
X
Insert the key into the ignition lock.
The alarm is deactivated.
X
To deactivate the alarm using KEYLESS-
GO: grasp the outside door handle. The key
must be outside the vehicle.
The alarm is deactivated.
or
X
Press the Start/Stop button on the dash-
board. The key must be inside the vehicle.
The alarm is deactivated.
The alarm is not switched off, even if you
close the open door that has triggered it, for
example.
i
If the alarm stays on for more than
30 seconds, the Mercedes
‑
Benz emer-
gency call system automatically sends a
message to the Customer Assistance
Centre. This is done by means of a text
message or a data connection.
The emergency call system sends a mes-
sage or establishes a data connection pro-
vided that:
R
you have subscribed to the
Mercedes
‑
Benz emergency call system
R
the Mercedes
‑
Benz emergency call sys-
tem has been activated properly
R
the necessary mobile phone network is
available
Tow-away protection
Function
An audible and visual alarm is triggered if your
vehicle's angle of inclination is altered while
tow-away protection is primed. This can occur
if the vehicle is jacked up on one side, for
example.
Activating
X
Make sure that:
78
Protection against theft
Sa
fet
y
