Took my new mk2 8v out for its first run tonight and everything was fine for about 45 mins, got on the M40 and then the water temp warning light started flashing. The actual temp gauge was fine, the needle was in the middle. I stopped the car and took the filler cap off and it started fizzing etc. The engine felt hot and all the water pipes were hot, although the radiator was cold. I dont recall hearing the fan at all. I left it for a while and started it back up and the temp gauge went back down to the bottom, but the light started flashing about 5 minutes later (temp gauge was now in the middle). I also noticed that the MFA was reporting the oil temp at 90 degrees C. I had to keep stopping and starting about 6 times before I could get home.
What could this be? Its really p!ssing me off because the car drives superbly apart from this.
Help!
Cheers
Neil