I've got too oil leaks on my car, one is coming (assuming you were standing at the front of the car looking at the engine, from the upper rear(what looks like a hose), the other is coming out near the oil pan filter and oil cooler. Here's some pics:

 

And the ones of the oil filter leak:

 

I can't tell where the first pics are from. I always need a bigger picture to show what area to even look in.....although I don't have a turbo either.

Anyway, the pics of the pan. Make sure that the first leak up in the hoses is not directly over where you see oil leaking at the pan. Its possible you have a bad gasket on the pan, but I bet the first leak is dripping down there and making it look like there is a leak there. Whenever you find a section of oil like that, always look up higher. Oil running down the block and then spraying back accross the bottom of the car is very common.

 

holy christ, that looks bad =( prolly isnt as bad as I make it out to be

 

I'm new to Audi's but I've worked on a lot of cars I would clean up the oil and check these spots often this will narrow your search dramatically make sure to keep an eye on the oil level in the car as well.

 

yea, keep a GOOD eye on the oil level!

clean off the oil thats all over the place, drive for a day, then see what's not clean anymore...

 

looks kinda like a pan gasket