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Mazda CX-5 Service & Repair Manual: Thermostat

Purpose, Function

Construction

Operation

1. When the engine coolant temperature decreases, the thermostat valve closes and engine coolant circulates without passing through the radiator.


2. When the engine coolant temperature is 80.5—83.5°C, the thermostat valve starts to open and the engine coolant passed through the radiator flows to the engine.


Thermostat Removal/Installation
WARNING: Never remove the cooling system cap or loosen the radiator drain plug while the engine is running, or when the engine and radiator are hot. Scalding engine coolant and steam may ...

Emissions
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Other materials:

DSC Related Parts Sensor Initialization Procedure
WARNING: If the initialization procedure is not completed, the DSC will not operate properly and it might cause an unexpected accident. Therefore, after replacing or removing the DSC HU/CM or SAS control module, make sure to perform the initialization procedure to insure proper DSC ...

Cooling Fan Relay [Skyactiv G 2.0]
Purpose, Function The cooling fan relay operates by receiving the signal from the PCM to supply power to the cooling fan motor. Construction The cooling fan relay is installed on the relay and fuse block. Operation The contact point is on when the battery vo ...

Oil Cooler
Purpose, Function The oil cooler routes engine oil and engine coolant through the interior and disperses the engine oil heat using the engine coolant. As a result, the oil temperature is maintained properly to reduce the engine oil deterioration. Construction A 9-layered ty ...

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