no i didnt have the water pump changed, but i really dont think it is the pump, my dad checked over the car yesterday, we changed the thermostsat first as some pipes where getting hot and some was cold, tested the theromsatat in hot water and it worked fine, so under some more investigating and Gurgling noises coming from the back we found the pipe which goes to the matrix was red hot and the exit pipe cold, so we pulled the exit pipe off with the engine running to find no water coming out the matrix.
I think its blocked with something, which is stopping the water circulating, a small amount of "muddy" looking water came out but then it stopped, the rest or the pipes have that red G12 collant in it which is clear. all very odd as ive had no work done to the car other than the cambelt really.
