Hi, im pretty new to this kind of thing but did it myself on Sunday on my MK3 8v.
1. Remove the Carbon Cannister hose on the top of the TB
2. Remove the 4 bolts (5mm Hex Key)
3. Remove the 2 water hoses coming from the bottom of the TB
(Follow the hoses back and undo the clips to give yourself some slack in order to get to get them off easier)
4. Remove the wiring plug (Took a bit of force but be careful not to damage it)
You can now fully remove the TB, I decided to port mine whilst it was out (Go here -
http://forums.vwvortex.com/zerothread?id=2065316)
Thoroughly cleaned after and re-installed with the original gasket, needed a new clamp on the Carbon cannister hose.
Hope this helps!!