ARIA

ENGINE 110 2.1.5 COOLING SYSTEM 2.1.5.1 SYSTEM DESCRIPTION: The above figure gives the coolant flow circuit with the components. The coolant flow is controlled by the thermostat (For details refer Thermostat in next section). In addition to the Cylinder head and block, the coolant also circulates through Oil cooler, HVAC heater coil and EGR Cooler . An auxiliary coolant tank is provided to compensate for the drop in coolant level. In addition there is a de- gassing line and a vent line connected to it. These help in maintaining the system pressure created by expansion and contraction of the coolant.