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:

    Locking the vehicle (mechanical key)
    If the vehicle can no longer be locked with the SmartKey, use the mechanical key. - Open the driver's door. - Close the front-passenger door, the rear doors and the tailgate. - Press the lockin ...

    Problems with fuel and the fuel tank
    Problem Possible causes/consequences and Solutions Fuel is leaking from the vehicle. Risk of explosion or fireThe fuel line or the fuel tank is defective. Turn the ...

    Automatic drive program
    Drive program E (drive program C on AMG vehicles) is characterized by the following: • comfort-oriented engine and automatic transmission settings • optimal fuel consumption resulting from the aut ...