WATER-COOLED CHARGE AIR COOLER RESERVOIR TANK CAP [SKYACTIV-D 1.5]
id0112q2158900
Purpose, Function
• The water-cooled coolant reserve tank cap maintains appropriate pressure in the engine coolant passage. In addition, cooling efficiency has been improved by increasing the engine coolant boiling point.
Construction
• The water-cooled coolant reserve tank cap is located on the coolant reserve tank.
Operation
When engine coolant temperature is high
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• When the engine coolant temperature is high, the pressure in the engine coolant passage increases and the pressure valve is pressed and opened.
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• Engine coolant flows through the engine coolant passage to the coolant reserve tank when the pressure valve is open.
When engine coolant temperature is low
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• When the engine coolant temperature is low, the pressure in the engine coolant passage decreases and the vacuum valve is opened.
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• Engine coolant in the coolant reserve tank flows into the water-cooled engine coolant tank when the pressure valve is open.
