Wahoo!
Had the car back from Sheffield Volkswagen this afternoon.
The car has been on the diagnostics and had the essential update applied (that it has already been stamped for!
).
This has cleared all of my faults and made the car hunky dory again.
Just in time I guess..... the car is booked in for a PDT remap on Saturday
Thanks a million to all the guys that have helped me out. I'd have been in a tramp shelter, skint, hugging a new ECU if it wasn't for you guys.
Nick