My 2008 Audi A4 burns oil at a rate of 1 quart per 1000 miles. The oil level warning came on at 6000, 10000 and 14000 miles.
Each time I had it checked at the Audi dealer where it was purchased, and was told each time that no leaks were found and that it was operating normally. They also measured the aforementioned burn off rate and informed me that it was "well within Audi specifications."
So I'm stuck with an Audi that has a problematic engine that forces me to keep a watchful eye on the oil level in order to avoid a catastrophe which should never be a concern.
If not for this problem, I would love the car.
Did you ever get any resolution to this issue? VW uses the same engine, maybe their dealer can advise you?
I have an Audi A4 and every 1,000 miles you have to top up the oil a bit less than a litre or so. I think it's whatever way they design the engines.
I don't mind it though, the car hasn't let me down yet. I look after it and it looks after me.