Right - had the vagcom unit plugged up, seems to be a MAF problem, not enough air flowing, i have since changed the air filter and it seems to be running better.
Although not perfect, still feels like its struggling during low revs (1-2k)
I believe, from what i have read, that MAF failures are common on Audi's/VAG cars - is this true, i have tried to find more detailed previous posts but to no avail.
Are these expensive parts to replace?
Any other suggestions on what may be playing up?