Why does the Roewe 750 warm air feel very hot?

1, the antifreeze in the engine cooling system is missing, and there are water leaks in the engine, such as water pump leakage, pipeline damage, water tank damage and so on.

2. The thermostat in the engine cooling system is out of order, resulting in high water temperature. The thermostat can't be opened, which hinders the flow of coolant inside the engine and the coolant temperature is too high.