Mazda CX-5 Service & Repair Manual: Heater Core

Mazda CX-5 Service & Repair Manual / HVAC / General / Heater Core

Purpose

The heater core heats passing air.

Function

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

Construction

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

Operation

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.

Fail-safe

Function not equipped.

Heated Oxygen Sensor (HO2 S) Heater Control [Skyactiv G 2.0]

Outline Based on the control of the HO2S heater, a stabilized oxygen concentration is detected even at low exhaust temperatures, and feedback control of fuel injection even at cold engine ...

Heater Core Inspection

1. Inspect the heater core for damage, cracks, and water leakage. If there is any malfunction, replace the heater core. 2. Visually inspect the fins for bending. If there is any ...

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