Kia 971381U500 Core Assembly-Heater

Take the vehicle to a dealer service department or automotive air conditioning shop and have the air conditioning system discharged and the refrigerant recovered. Disconnect the cable from the negative terminal of the battery and drain the cooling system. Remove the heater/evaporator housing by removing the instrument panel assembly, cross-cowl support tube, air conditioner lines at the firewall, wiring from the blower motor, and any air ducts attached directly to the unit. Separate the halves of the heater housing and remove the heater core. Installation is the reverse of removal, using new 0-rings to seal the evaporator refrigerant connections. Refill the cooling system and have the air conditioning system evacuated, charged and leak tested.