Fiat 500 X 2016 Owner's Manual page 350

348 STARTING AND OPERATING
Opening The Door
For filling proceed as follows:
1. Open the door, by pushing and releasing on the
indentation point indicated by the arrow.
Fuel Filler Door
2. Insert the fuel nozzle in the filler pipe and proceed
with filling the fuel tank.
Filler Pipe
3. Before removing the nozzle, wait at least 10 seconds to
allow the fuel to flow inside of the tank.
4. Pull the nozzle from the filler pipe and then close the
door.