The official Audi extended warranty. The earliest appointment they had was 9th December, so me being an old hat at this and knowing that breakdowns have to be investigated with 24/48 hours, I called the RAC, guy came out and said the car's driveable so he followed me to Audi and off he went, car is now in for investigation, fingers crossed the warranty will finally pay for something after rejecting PCV valve (occurred in first 30 days and anyway now appears to have gone away once N-80 valve was actually plugged in under the engine cover) and coolant pipe leak (which is specifically excluded in the warranty and appears to have only been a clip that was too big and seems to have been linked to the water pump leak.