How to Install Mitsubishi Outlander Alloy Fuel Door
This video for a Lancer fuel door is similar
What is different is that the hex bolt is on the outside for the Lancer, on the outlander it is behind the closed door.
There are some tricks to this.
Do NOT attach the bracket until you put in on the car .
Put the rubber band around the large fixed part of the door.
You have to put the right hand hooks into the slot first.
Then you can attach the bracket to the left with hex key
There is a hole for the tether on the bracket, remove the tether from the original door.