Closing

turn it Replace the fuel filler cap and turn it clockwise. The fuel filler cap audibly engages.
If you drive with the fuel Close the fuel filler flap.

filler cap open, If you drive with the fuel filler cap open, reserve fuel warning lamp addition, the  Check Engine warning flashes. In addition, the lamp may light up. A message appears in Check Engine warning lamp may light up. A message appears in the multifunction display.
For further information on warning and indicator lamps in the instrument cluster, see.

before locking the Close the fuel filler flap before locking the vehicle. A locking pin otherwise prevents the fuel filler flap from closing after the vehicle has been locked.

    See also:

    Problems with the SmartKey
    Problem Possible causes/consequences and Solutions You cannot lock or unlock the vehicle using the SmartKey. The SmartKey battery is discharged or nearly discharged. ...

    Please bear the following in mind
    The engine oils are matched to the performance of Mercedes-Benz engines and service intervals. You should therefore only use engine oils and oil filters that are approved for vehicles with mai ...

    Lights
    Display messages about LEDs: This display message will only appear if all LEDs have failed. Display messages Possible causes/consequences and Solutions The left or ri ...