You NEED to go to a garage and let them do it.You don't have gearbox oil in an automatic car you have transmission fluid,you DON'T just top it up and you shouldn't really need to it will last the life of the car usually.DON'T touch the" 2 screws one at the front and one at the rear" I have a 206 and the level is adjusted via the DRAIN plug.Auto gearboxes bear no resemblance to manual gearboxes at all,do not even think about touching it.WHY!!!!!! DO YOU WANT TO KNOW where it goes.If it works why mess with it.
rich, May 2015
