As an update on mine - I thought it had got worse recently so I started tracking it:
Mileage Oil added
28338 0.5
28463 0.5
28600 0.5
So as you can see it's gone through 1 litre of oil in 262 miles. I went to see the garage today but was too late for the service department so they'll be getting a call on Monday. When the car's been running for a reasonable period of time then it's started exhibiting some problems too. If I come to a stop then pull away, or slow down at a roundabout for instance, it can sound somewhat diesel like, and it almost feels like it's going to stall between 1st and 2nd.
It's somewhat sporadic, and somewhat reproducable by putting it in manual, shifting to the highest gear it will allow, then trying to accelerate without auto kick down.
This could be complete nonsense on my part, but I always had a sort of feeling about when it was going to tell me it needed oil. The sign was just a slight difference on how the DSG changed gears. There was almost a sense that it was slipping it a little bit. It's one of those things that's really hard to explain and put in to words.
I'm getting near 3 years with this car so it'll be time to move it on, but I don't think I can do that in good conscience until this is fixed.