306 s are known for head gasget problems if so may rite ur car off ..but chek for coolent leakage all found engin and front foot carpets if wet is heater matrix leak u say heater doesent blow hot ether simply not enough coolent or the coolent/water pump is failing again not massivly cheap on labour if it is consider having the timing belt and tensioner replaced at same time IT HAS TO COME OFF TO REPLACE THE PUMP...THE BELT TENSIONER LIFE IS APPROX. 30-50000 MILES OR 5 YEARS ifits a radleak or mettle pipe HOLTS RADWELD is worth a go works moast times
lee army VM, January 2015
