Immobilizer

The immobilizer prevents your vehicle from being started without the correct SmartKey.

When leaving the vehicle, always take the SmartKey with you and lock the vehicle. The engine can be started by anyone with a valid SmartKey that is left inside the vehicle.

To activate with the SmartKey: remove the SmartKey from the ignition lock.
To activate with KEYLESS-GO: switch the ignition off and open the driver's door.
To deactivate: switch on the ignition.

when you start the engine. The immobilizer is always deactivated when you start the engine.

In the event that the engine cannot be started when the starter battery is fully charged, the immobilizer may be faulty.

Contact an authorized Mercedes-Benz Center or call 1-800-FOR-MERCedes (in USA) or 1-800-387-0100 (in Canada).

    See also:

    Calling up a stored parking position setting
    •► Turn the SmartKey to position 2 in the ignition lock.•► Adjust the exterior mirror on the frontpassenger side with the corresponding button•► Engage reverse gear. The exter ...

    SmartKey
    SmartKey 0 To remove the SmartKey Vehicles with automatic transmission: shift the transmission to position P 1 Power supply for some consumers, such as the windshield wipers 2 Ignition (power su ...

    Tread
    The part of the tire that comes into contact with the road. ...