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.

In the event that the engine cannot be started when the starter battery is fully 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:

    Change of address or change of ownership
    In the event of a change of address, please send us the "Change of Address Notice" found in the Service and Warranty Information Booklet, or simply call the Mercedes-Benz Customer As ...

    Vehicles with automatic transmission
    Apply the electric parking brake. Shift the transmission to position P. Using the SmartKey Turn the SmartKey to position 0 in the ignition lock and remove it. The immobilizer is activated. ...

    Adjusting the head restraints
    Adjusting the angle of the head restraints Example: Sedan •► Push or pull the lower edge of the head restraint in the direction of the arrow. •►  To adjust the head restraint ...