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 locking button .
■ Check whether the locking knobs on the front-passenger door and the rear doors are still visible. Press down the locking knobs manually, 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.

1 To lock
■ 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 tailgate are locked.
■ Insert the mechanical key into the SmartKey.
If you lock the vehicle as described above, the fuel filler flap is not locked. The antitheft alarm system is not armed.
Adjusting the head restraints
General notes
Pay attention to the important safety notes .
Do not rotate the head restraints of the front
and rear seats. Otherwise, you cannot adjust
the height and angle of the head res ...
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Changing the rear bulbs
G 55 AMG only: protective grille
Make sure that the protective grille does
not hit any painted surfaces.
You could otherwise damage the
paintwork.
Protection grille (AMG vehicles)
You must r ...