For anyone needing to adapt their DBW TB, open bonet, open drivers door, turn ignition on(but dont start engine). DO NOT TOUCH THE ACCELERTOR! You should hear a high pitched noise coming from the TB for about 30 seconds. Once this stops you are done. No need for VAG COM.
This deff works for my 2000 AUM but I undertand that for some newer cars it doesn't. Seem to be a random thing.....
HTH