I just called AUDI WAtford to book the car in to diagnose a vibration I have. I'm glad I then asked the question will this involve any charges. Half an hour at 70 quid to put it on their vagcom. I asked if that was chargeable if they were unable to give a definitive diagnosis, to which I was told yes. My response was "but how can you charge for a diagnosis, when you haven't diagnosed anything?" the response I got was "because we put it onto our computer to check it for fault codes". "but why would your default position be to diagnose it with the computer, when it might a problem that doesn't give a fault code" "because thats the way we do it." It seems to me that there is no sense of customer satisfaction, and just a way of earning an easy 70 quid for un-necessary work to be carried out! Thats boardering on being what I would expect a rogue trader to do!!! I know there is no fault codes, so refuse to be robbed by the Audi thieves!