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ATA (anti-theft alarm system)
Function of the ATA system
If the ATA system is armed, a visual and audible
alarm is triggered in the following situations:
when a door is opened
R
when the tailgate is opened
R
when the hood is opened
R
when interior protection is triggered
R
(
page 96)
/
when the tow-away alarm is triggered
R
(
page 96)
/
The ATA system is armed automatically after
approximately ten seconds in the following situa-
tions:
after the vehicle is locked with the SmartKey
R
after the vehicle is locked using KEYLESS-GO
R
Indicator lamp
1
flashes when the ATA system is
armed.
The ATA system is deactivated automatically in the
following situations:
after the vehicle is unlocked with the Smart-
R
Key
after the vehicle is unlocked using KEYLESS-
R
GO
Opening and closing
after the start/stop button is pressed with the
R
SmartKey in the stowage compartment
(
page 177)
/
%
When the Mercedes‑Benz emergency call sys-
tem is active and the alarm stays on for more
than 30 seconds, a message is automatically
sent to the customer center (
/
%
In the case of severe battery discharging, the
anti-theft alarm system is automatically deac-
tivated to facilitate the next engine start.
Deactivating the ATA
Press the Ü, ß or p button on the
#
SmartKey.
or
Press the start/stop button with the SmartKey
#
in the stowage compartment (
/
Deactivating the alarm using KEYLESS-GO
Grasp the outside door handle with the Smart-
#
Key outside the vehicle.
95
page 326).
page 177)
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