Hi,
Thanks for your reply.... the car has done 97k, which was about the mileage that the clutch went on my last a4....
However, the strange thing is, that today, I can't make it do it.
If it was the clutch, I would expect it to just get gradually worse, not happen one day and not the next.
I was wondering if it might be a sensor, but I'm not getting any warnings on the dash.
The trouble is, if I take it to Audi, it may not do it, and then they think I'm just bonkers!