How do I open the fuel door for the BMW X3 2nd Gen? Jane March 01, 2024 05:21 Updated The fuel door is located on the driver’s side of the car. To open it, gently press down on the fuel door and it should pop open. To close it, just push the door back in 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? 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? How do I start and drive the BMW 318i/36i?