>the drain hole is in left side behind drive shat it uses for both thing >drain and fill,you should use 17mm allen socket.to drain use a vacumm >pump localy avaliable to fill is the same way.good lok!! not on MY quattro! mine has two bottom drain plugs and one fill plug on the right side housing cover. (pn 111 301 127E) frank to: IN:elprofe@caribe.net cc: IN:quattro@coimbra.ans.net