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:

    HOLD function
    General notes The HOLD function can assist the driver in the following situations: • when pulling away, especially on steep slopes • when maneuvering on steep slopes • when waiting in tr ...

    Resetting the side windows
    You must reset each side window if a side window can no longer be closed fully. Close all the doors. Turn the SmartKey to position 1 or 2 in the ignition lock. Pull the corresponding switch ...

    Please bear the following in mind
    Resetting service interval display If the qualified specialist workshop, e.g. a Mercedes-Benz Center, carried out the maintenance work, the service interval display will be reset. Further info ...