What happens if a car's radiator runs out of water?

[StReagan]

The car cannot continue to drive if the radiator runs out of water, and severe cases may lead to engine failure. The functions of a car's radiator are: 1. The cooling system of the radiator dissipates excess and unnecessary heat from the engine, ensuring the engine operates at normal temperatures under various speeds or driving conditions; 2. The radiator is a heat exchanger for water-cooled engines, maintaining the engine's normal operating temperature through air convection cooling; 3. Once the engine coolant in the radiator boils and vaporizes due to high temperature, causing the pressure to exceed the set value, the radiator cap releases the pressure by overflowing, reducing the coolant and preventing the cooling system pipes from bursting.