Hope I am ok to ask this in this section again, the gasket on my auto box 3.0 d sport, is leaking, it says its for life ,on a sticker on the box, also theres a drain plug, would any one know where the fill plug is, and if there is a dip stick, or just a plug on the side, that it comes out when at correct level, any help please regards, again sorry ,if this is in the wrong place to ask this