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:

    Switching off the manual drive program
    Vehicles with the dynamic handling package: press the program selector button. M is no longer shown in the multifunction display. AMG vehicles: turn the drive program selector until C, ...

    Checking the oil level using the oil dipstick
    Park the vehicle on a level surface. To check the oil level with the engine at operating temperature, switch the engine off and wait for approximately five minutes. Pull oil dipstick 1 ou ...

    Opening the DEF filler cap
    The filler neck for DEF is behind the fuel filler flap. The fuel filler flap is unlocked or locked automatically when you open or close the vehicle with the SmartKey or with KEYLESSGO. - Swi ...