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.
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
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:
Cleaning the steering wheel and gear or
selector lever
•► Thoroughly wipe with a damp cloth or use
leather care agents that have been
recommended and approved by Mercedes-
Benz. ...
Reporting malfunctions relevant to safety
For the USA only:
The following text is reproduced as required of all manufacturers according to
Title 49, Code of U.S. Federal Regulations, Part 575 pursuant to the National Traffic
and Motor Ve ...
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