BMW

What else is left my heater stop working as well what else could it be can any one advise it still runs hot after replacing the water pump, thermostat, belts ,hoses, rediator,fan blades (they hit the housing and broke them all off) it still get hot thier is no hot air comming from my heater i did put reg tap water when it over heats should i drain the rediator and put in new antifreeze. pls advise

Heater core, evaporator core or radiator is plugged.