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:

    DOT, Tire Identification Number (TIN)
    U.S. tire regulations prescribe that every manufacturer of new tires or retreader has to imprint a TIN in or on the sidewall of each tire produced. The TIN is a unique identification number. The ...

    Changing the battery
    You require a CR 2025 3 V cell battery. Take the mechanical key out of the SmartKey. Press mechanical key 2 into the opening in the SmartKey in the direction of the arrow until battery t ...

    Transporting the vehicle
    The towing eye can be used to pull the vehicle onto a trailer or transporter for transporting purposes. •► Turn the SmartKey to position 2 in the ignition lock. •► Shift the automa ...