GOOD EVENING, THE CAR ARRIVES AT THE WORKSHOP WITH THE WATER PUMP DESTROYED AND THE CUSTOMER COMPLAINS NOT ONLY ABOUT THE NOISE (OBVIOUSLY COMING FROM THE BELTS) BUT ALSO THAT THE HEATING DOESN'T WORK (OBVIOUSLY THERE WAS NO WATER LEFT).

AFTER REPLACING THE PUMP I RAN THE CAR IN THE FAN AND FOR A DAY EVERYTHING SEEMED TO WORK PROPERLY.

THE NEXT DAY THE HEATING STOPPED GOING (PIPES TO THE RADIATOR ONE BOILED THE OTHER LUKEWARM) I THOUGHT IT WAS THE INTERNAL RADIATOR CLOGGED.

I REPLACE THE RADIATOR AND, WHILE I'M AT IT, THE THERMOSTAT, BUT NOTHING DOING, THE HEATER DOESN'T WORK.

IS THERE ANY PARTICULAR WAY TO PURGE IT?

THANK YOU