How do I open the fuel door for the BMW X3 2nd Gen? Jane December 13, 2024 08:04 Updated Locate the fuel door on the outside of the vehicle. It should be on the right side. Gently press down on the fuel door and it will pop open. To close it, press down on the fuel door until you hear a click. Related articles How do I open the fuel door for the BMW X3? How do I adjust the seat for the BMW X3 2nd Gen? Do I top up diesel or petrol for the BMW X3 2nd Gen? How do I open the boot of the BMW X3 2nd Gen? How do I switch on/off the headlights for the BMW X3 2nd Gen?