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:

    Instruction labels for tires and loads
    WARNING Do not overload the tires by exceeding the specified load limit as indicated on the Tire and Loading Information placard on the driver's door B-pillar. Overloading the tires can ove ...

    Safety notes
    WARNING Work improperly carried out on electronic components and associated software could cause them to cease functioning. Because the vehicle's electronic components are interconnected, ...

    Notes on technical data
    The data stated here specifically refers to a vehicle with standard equipment. Consult an authorized Mercedes-Benz Center for the data for all vehicle variants and trim levels. ...