There should be a catch directly behind it you can access from inside the trunk.
It has a dead battery, gas will not help this condition. LOL. They is a manual release in the passenger door that will open the fuel door, but you still need a battery.
Just Push down on it, it will pop up
With your key.
A battery has no part of the process of opening a door with a slim Jim
The fuel-filler door is part of the vacuum power-lock system. You must unlock the diver or passenger side door. The fuel-filler door and the trunk will unlock at the same time.
Use door key on door
Yes.
"To manually unlock the passenger door. Put key in passenger door keyhole, lift door handle while turning key clockwise." This happened to my daughter's car. I got this advice on bimmerfest.com and it works!!!
Put the key in the door and turn.
Use your key in the door.
Use the key to open the door.
With your key in the door lock cylinder.