ATA (Anti-Theft Alarm system)

A visual and audible alarm is triggered if the alarm system is armed and you open:

  • a door
  • the vehicle with the mechanical key
  • the tailgate
  • the hood

The alarm is not switched off, even if you close the open door that has triggered it, for example.

(USA only) or TELE AID (Canada only) initiates a call to the Customer Assistance If the alarm stays on for more than 30 seconds, the emergency call system mbrace (USA only) or TELE AID (Canada only) initiates a call to the Customer Assistance Center automatically. The emergency call system initiates the call provided that:

  • you have subscribed to the mbrace/ TELE AID service.
  • the mbrace/TELE AID service has been activated properly.
  • the required mobile phone, power supply and GPS are available.

  • To arm: lock the vehicle with the SmartKey or KEYLESS-GO. Indicator lamp 1 flashes. The alarm system is armed after approximately 15 seconds.
  • To deactivate: unlock the vehicle with the SmartKey or KEYLESS-GO.
  • To stop the alarm using the SmartKey: insert the SmartKey into the ignition lock. The alarm is switched off.

or

  • Press the button on the SmartKey. or button on the SmartKey.

The alarm is switched off.

  • To stop the alarm using KEYLESS-GO:
    grasp the outside door handle. The SmartKey must be outside the vehicle. The alarm is switched off.

or

  • Press the Start/Stop button on the dashboard. The SmartKey must be inside the vehicle.
    The alarm is switched off.
    See also:

    Service for recovering a stolen vehicle
    If your vehicle has been stolen: – Notify the police. The police will issue a numbered incident report. – This number will be forwarded to the Mercedes-Benz Customer Assistance Center togethe ...

    Important safety notes
    WARNING Follow recommended tire inflation pressures. Do not underinflate tires. Underinflated tires wear excessively and/or unevenly, adversely affect handling and fuel economy, and are mo ...

    De-authorizing (de-registering) a Bluetooth® device
    Mercedes-Benz USA, LLC recommends deauthorization in both COMAND and the Bluetooth® device, e.g. the mobile phone. Subsequent authorization may otherwise fail. In the Bluetooth® device list, se ...