What are the consequences of insufficient car coolant?

[LeRobert]

Insufficient coolant in a car can affect the radiator's heat dissipation efficiency, failing to achieve the required cooling effect. This disrupts the normal circulation of coolant, leading to overheating and, in severe cases, engine damage. In cold climates, it may also cause the engine or radiator to freeze, resulting in engine failure and rendering the vehicle inoperable. Methods to determine if coolant is insufficient: Observe the coolant warning light on the dashboard. If it lights up, it is likely due to insufficient coolant, though it could also be triggered by excessively high cylinder temperatures. Check the coolant reservoir. If the fluid level is below the minimum mark (MIN), do not continue driving; promptly add coolant. Inspect the water level markings on the coolant reservoir. Normal coolant levels should be between the maximum and minimum marks. To determine if coolant is low, check these markings. If the coolant is below the minimum level, it indicates a shortage.