Cooling liquid leak from the machine: what to do

That anti-freeze is one of the most common losses on cars. Refrigerant (or antifreeze) is a liquid that usually has a greenish color. Sometimes it is of a bright orange or pink color. It is also a bit sticky, between your fingers gives the feeling of a viscous liquid.

If a coolant (or anti-freeze) is detected from the engine of your car, the wise move is to eliminate the problem as soon as possible. A 50/50 mixture of antifreeze and distilled water runs around the engine during use, avoiding overheating, so a neglected loss can mean serious trouble to the engine and to your wallet. In the end, in fact, the radiator and the liquid tank will remain dry and this will lead to the destruction of the engine.

Although finding a coolant leak can be difficult, there are still few places to look at immediately:

Radiator tubes

The pipe that runs inside or outside the radiator may be the culprit. Tubes crease and damage with time, so inspect them for their entire length to look for any damage. Ties that connect pipes to the radiator can also be used for prolonged use. These substitutions can be done without the help of a professional if you know how to do it.

Radiator cap

The radiator cap is located on the top of the radiator. If it is damaged or if the seal is broken, it will no longer contain the accumulated pressure inside the radiator, causing the fluid to leak while the vehicle is moving. There are several things to look at when trying to figure out whether the radiator cap is the source of a cooling liquid leak.

Start by doing so that the cap has the correct pressure on your vehicle. Obviously, the cap must not be damaged to cause a leak if the pressure is incorrect for the radiator. A dull gasket on the radiator cap can be detected by a simple visual inspection of the main seal, pressure and valve tightness.

Also, the cap spring should have resistance, and if it does not have one, it needs replacement. If you suspect that the radiator plug is the problem, but you have not yet found the apparent cause, you can check its holding with a professional pressure tester.


This plastic container is an overflow tank for the antifreeze and water mixture. It may have a small crack or a hole from which the coolant can gradually escape. Then a damaged tank must be replaced. A new coolant tank can be found easily and has a low cost, and is easy to install.


It could also be that the radiator itself loses. If all the above listed parts have been checked well, then it is time to take your vehicle from a mechanic. The problem in this case requires a more expensive solution, and it is best to leave the solution to a mechanic.

Other possible causes

Other possible causes for refrigerant loss (antifreeze) include a damaged or defective water pump, suction manifold seal, or heater core, as well as all parts of the cooling system. As with the replacement of the radiator, these parts must be inspected and repaired by a professional.

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