Anti-theft protection
Function of the immobilizer
The immobilizer prevents your vehicle from being
started without the correct SmartKey.
The immobilizer is automatically activated when
the ignition is switched off and deactivated when
the ignition is switched on.
When leaving the vehicle, always take the Smart‐
Key with you and lock the vehicle. Anyone can
start the engine if a valid SmartKey has been left
inside the vehicle.
%
If the event that the engine cannot be star‐
ted (yet the vehicle's battery is charged), the
system is not operational. Contact an
authorized Mercedes-Benz Center or call
1-800-FOR-MERCedes (in the USA) or
1-800-387-0100 (in Canada).
ATA (anti-theft alarm system)
Function of the ATA system (anti-theft alarm
system)
If the ATA system is armed, a visual and audible
alarm is triggered in the following situations:
R
A door is opened.
R
The trunk lid is opened.
R
The hood is opened.
The ATA system is armed automatically after
approximately 10 seconds:
R
After locking the vehicle with the SmartKey.
R
After locking the vehicle using KEYLESS-GO.
When the ATA system is armed, indicator lamp
1 flashes.
The ATA system is automatically deactivated:
R
After unlocking the vehicle with the Smart‐
Key.
R
After pressing the start/stop button with the
SmartKey inside the vehicle.
Opening and closing
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