Expansion tank of the cooling system
The cooling system is filled with a mixture of water, antifreeze and anti-corrosion agent all year round. This prevents rust and corrosion, salt deposits and, in addition, increases the boiling point of the coolant. In the cooling system, due to the expansion of the liquid when heated, excess pressure is created, which also leads to an increase in the boiling point of the coolant. The pressure is limited by a valve located in the expansion tank cap, which opens at a pressure of 1.4-1.6 atm. For the flawless functioning of the engine cooling system, an increased boiling point of the coolant is required. At a low boiling point, a vapor lock can form, as a result of which the circulation of the liquid decreases and engine cooling deteriorates. Therefore, the cooling system must be filled with a mixture of water and the listed additives all year round.