The A3 has a peculiar setup where the fuel cap is tethered to the body of the car with a short rubber strap. However whilst fuelling up you either have to hold this out of the way with your other hand or just let it dangle against the bodywork. Normally amny cars have a little slot to hold it in whilst fuelling or it's loose so can be placed elsewhere.
Or am I missing something???
Or am I missing something???