Reasons why car coolant is depleted.

Coolant plays a crucial role in regulating the temperature of the engine and other vehicle components. However, over time, the coolant level in a vehicle gradually decreases, leading to negative impacts on the engine.

According to technical experts, coolant loss in a car can be caused by various factors, but the most common reasons are as follows:

It leaked out.

One of the most common causes of coolant loss in a car is leaks. This is due to loose or cracked/punctured pipes or connections. However, users often find it difficult to detect because the leak is located deep inside the engine compartment.

Additionally, the radiator can be damaged due to prolonged use or punctured by flying stones or gravel. This also causes coolant loss. A loose radiator cap also leads to coolant leakage.

Coolant leaks into the combustion chamber.

In a car engine, there is a cylinder head gasket that helps seal the cylinder head and the engine block. If the cylinder head gasket is damaged, coolant can leak into the combustion chamber or mix with the oil lines.

In addition, a cracked engine cylinder can cause coolant to leak into the combustion chamber.

The auxiliary water tank is leaking.

Coolant loss in a car can also be caused by a leak in the expansion tank. When the engine is not running, the coolant is stored in the radiator and pipes. When the engine starts, the temperature rises, increasing the volume of the fluid. At this point, the expansion tank acts as a reservoir to regulate the pressure. Over time, the quality of the expansion tank deteriorates, and the seal may leak. High pressure pushes some of the coolant out, causing loss.

How to fix it

To address coolant loss, users should regularly check the coolant level to detect any depletion and replenish it promptly. Before each trip, open the hood and check the expansion tank to ensure the coolant level is between the Max and Min marks. If the level is below the Min mark, add coolant immediately.

While driving, regularly monitor the temperature gauge on the dashboard. If the temperature gauge points to "Hot," stop the vehicle and open the hood to allow the heat to dissipate. Then, check the coolant system to identify the cause and take corrective action.

If your vehicle malfunctions or the temperature gauge shows a very high reading, avoid opening the coolant reservoir cap. High pressure and temperature inside the reservoir can cause serious damage.

To protect your engine, use specialized automotive coolants.