sounds like the fuel cap is similar to my audi where the cap has 2 notches as reported by Chris. what i just do is hang the cap onto the fuel cover/flap using the 2 notches when filling up
Carnivor - the trick to stop knocking into it is to hang the fuel cap on the outside of the fuel cover/flap, that way it is completely out of the way and shouldnt interfere with access to the tank
g
(i dont have a leon yet so please dont
me, just trying to
help)