Wash out the cooling system.

Use GLACEOL RX cooling liquid (type D).

Fill the cooling system with liquid by means of installation for gas station and diagnostics of the cooling system of the engine (Mot. 1700).

Fill in cooling liquid in a broad tank to the top edge of a mouth.

Wrap a stopper of a broad tank.

Remove air from system.

By means of the equipment allowed to application measure frost resistance of cooling liquid.

Be convinced of lack of leaks and serviceability of a heater.

Let's the engine work with a frequency of rotation of bent ^{shaft 1500 mines-1}, sharply raising turns to the maximum 2–3 times approximately each 2 min. until the electric fan turns on again.