12-12-2016, 08:48 PM
I went through all the issues your having when trying to sort my first 306 changed thermostat/flushed system etc bleed it loads of times decided to fit a new heater matrix solved the issue straight away wished i did this before wasting time doing the other tests etc my guess is my old matrix was partialy blocked if you change yours you will see how thin the pipes etc are on it so do block easily.