I have two German cars. The fuel filler is on the passenger side on both. I know exactly where they are – this has been the case on the various German cars I’ve owned for the past 40 year. I still sometimes get it wrong. I feel a bit stupid having to correct the situation but since I don’t know the other customers getting gas – I don’t care. It would help on rentals if the arrow was a bit larger (this is a pet peev of mine on most consumer UI graphics and packaging - a different discussion though)