hello i just bought a new MG ZR 1.8 think its 2001 model not sure about that thd! i got it from a car sales garage after a week i broke down when i took it back they had to send it to a garage they had it for two weeks had to do a lot of work about £900 worth, got it back and its juddering at lights and sometimes the water tank keeps bubbling and kinda spitting out water i rang the garage he said nothing was wrong with it! iam driving up o scotland this friday and dont wanna break down does any one know if this is a bad thing are what could be wrong thanx for any help