The set includes two products for diluting distilled water and filling into liquid or combined cooling systems. One composition has an alkaline component, the other has an acidic component for removing organic and inorganic contaminants, including emulsions. • Restores the functionality of the cabin heater • Increases the lifespan of the radiator, pump, and thermostat • Normalizes heat exchange processes and protects the engine from overheating • Increases the lifespan of the radiator, pump, and thermostat • Extends the service life of the new coolant by 30-40% • Suitable for all types of cooling systems for passenger and commercial vehicles Indications for use: • Poor cabin heating or engine overheating • Contamination of the coolant with oil and the formation of emulsions • Irregular servicing of the cooling system • Use of incompatible antifreeze