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 trunk lid/tailgate.
•► Press the locking button.
•► Check whether the locking knobs on the front-passenger door and the rear doors are still visible. Press down the locking knobs by hand, if necessary.
•► Close the driver's door.
•► Take the mechanical key out of the SmartKey
•► Insert the mechanical key into the lock of the driver's door as far as it will go.

•► Turn the mechanical key clockwise as far

•► Turn the mechanical key clockwise as far as it will go to position 1.
•► Turn the mechanical key back and remove it.
•► Make sure that the doors and the trunk lid/ tailgate are locked.
•► Insert the mechanical key into the SmartKey.

    See also:

    System self-test
    The indicator lamp illuminates when you: • turn the SmartKey to position 1 or 2 in the ignition lock • press the KEYLESS-GO Start/Stop button once or twice If an adult occupant is properly s ...

    Low-beam headlamps (halogen headlamps)
    Switch off the lights. Open the hood. Remove the headlamp cover (). Left-hand headlamp: detach the washer fluid reservoir (). Turn housing cover 1 counter-clockwise and pull it out. Pul ...

    Service for recovering a stolen vehicle
    If your vehicle has been stolen: •► Notify the police. The police will issue a numbered incident report. •► This number will be forwarded to the Mercedes-Benz Customer Assistance ...