•  The heater core heats passing air.

•  A portion of the engine coolant is taken into the heater core to heat the air passing through the heater core.

•  The heater core consists of a tube which passes engine coolant, and the heat radiation fin.

•  The engine coolant warmed by the engine heat is sent to the heater core.

•  The air blown by the blower motor is warmed up by heat exchange when it passes through the heat radiation fin of the heater core.

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•  Function not equipped.