So i start the car this monring, and begin scrapping the screen. Whilst doing this i hear a noise like plastic expanding under heat, i think to myself "thats new" but put it down to it being very cold this morning. Anyway after a few mins of running my heater normally blows nice and warm, but not this time. So after a mile or so i think, let stop and restart the engine just in case the climate is having a bad day. Just as i pull over the DIS displays "check fluid level" at which point the engine is tuned straight off. I pop the bonnnet and see about 1" of coolant in the tank and a load of steam. Audi pick me up and i get a nice A4 Avant to drive for the day. They havent confirm the problem yet, but i guess its a nice plastic pump gone pop. My car is a March 2010 with just under 6000 miles on the clock. The temp gauge was showing normal, my question is could this have fryed any other part of the engine before or after the thermostat? Cheers, Phil.