Mysterious disappearing oil!?
My dads 2002 B6 Audi A4 (1.6) is mysteriously loosing about 1 litre of oil every 1000-1200 miles.
He has had it checked by the audi dealer and shown no problems. No leaks, no abnormal emissions showing burning oil...nothing!!
I read another thread saying that these engines can drink oil sometimes but surely that is excessive for such a short amount of miles???
The car is in perfect working order by the way!
I've got a different engine (3.0L) but the thoery might hold. I cured the same problem by clearing the crank case breathers which had become clogged. These are supposed to return the oil from the rocker box, so it caused excessive oil pressure in the head, forcing it out of the gaskets. I never actually saw the oil, except for a small amount that puddled around one of the plugs, because it only builds high oil pressure when you're moving quickly, and so it gets swept away.
Hope this helps.