Note: Since the radiators of the cooling and heating systems are made of aluminum, it is necessary to use antifreeze (concentrate), certified by the manufacturer and containing anti-corrosion additives.
Example
Measuring the concentration of the coolant gave a freezing temperature of -10°C. In this case, you need to drain 3.0 liters of coolant from the cooling system and pour 3.0 liters of pure antifreeze into the system (concentrate). In this case, the freezing temperature of the coolant will drop to -35°.
Close the expansion tank cap and check the coolant concentration again after a test drive.