What are the consequences of a car lacking coolant?

[OliveLynn]

If a car lacks coolant, the engine temperature will become excessively high, which can easily lead to engine damage. The proper functioning of the vehicle's cooling system is essential for ensuring the normal operation of the engine, and any faults related to the coolant system should not be overlooked. It is crucial to replenish the coolant promptly if it is missing. Prolonged lack of coolant can result in poor heat dissipation in the cooling system, causing the engine to overheat. In severe cases, this can lead to cylinder head deformation, piston scuffing, and even engine failure. It is normal for the coolant level to fluctuate within a certain range due to temperature changes. However, if the coolant is no longer visible in the reservoir, immediate attention is required. If the coolant level drops again after being replenished to the normal mark, this indicates a coolant leak, and immediate repairs are necessary.