The first step for servicing or repairing the heater core involves draining engine coolant from the
Radiator but complete removal of coolant is not required. The first step is to disconnect water hoses from the A/C unit followed by removing the No.1 lower instrument panel together with the LH instrument lower panel. The heater radiator removal begins with releasing three claws to pull out the heater protector followed by unscrewing three plate screws and disconnecting the two heater radiator pipes by unfastening their respective screws and clamps before extracting the heater radiator itself. The installation procedure of this component requires reverse sequencing of its removal steps.