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.

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:

    Data stored in the vehicle
    Information about electronic data acquisition in the vehicle (Including notice pursuant to California Code § 9951) Your vehicle records electronic data. If your vehicle is equipped with mbrace3, ...

    SmartKey
    Display messages Possible causes/consequences and •► Solutions Key Does Not Belong to Vehicle You have put the wrong SmartKey in the ignition lock. •► Use the correct ...

    Opening and closing
    Overhead control panel 1 To raise 2 To open 3 To close/lower The panorama roof with power tilt/sliding panel can only be operated when the roller sunblind is open. - Turn the SmartKey to ...