Hi i have a audi a6 2.4 auto which is now currently just sat on my drive leaking some sort of oil.... today driving home from work pullilg away from a steep hill junction it was revving out at 3500revs before moving anywhere and even when it got going it was still very sluggish only to be followed by what it felt like the clutch slipping, gripping and releasing... the other day it wasn't changing down through the box properly can any suggest or tell me if my gearbox it knackered or is it my clutch?