On engines with an expansion tank built into the radiator
After the engine has cooled, remove the cap from the radiator and check the coolant level, which should be between the two marks on the top of the expansion tank.
Warning. Do not remove the cap from the radiator until the engine is cold. After the engine has cooled down, turn the plug one turn counterclockwise to release excess pressure. After that, completely unscrew the radiator cap.
On engines with a remote expansion tank
The walls of the expansion tank are transparent, which allows you to check the coolant level without removing the plugs from the tank. On a cold engine, the coolant level should be at the point of the arrow on the reservoir wall. On a hot engine, the coolant level should be slightly above the arrow.
Warning. If it is necessary to top up the coolant to the correct level, the same precautions should be observed as for an engine with an expansion tank built into the radiator.
The engine cooling system is sealed. Therefore, any decrease in the level of coolant in the expansion tank can only be caused by a violation of the tightness of the system. Locate the leak by checking the radiator, hoses, cylinder head gasket, then fix it.
Fill in cold coolant only when the engine is cold, so as not to damage the engine.
Alternator drive belt
After 15,000 km of run, check the tension of the rhenium drive of the generator. The tension of the belt is considered normal if, when pressing the middle of the long branch of the belt with a force of about 10 kgf, the deflection is 10-15 mm.
Warning. It is forbidden to drive a car with a worn or torn belt, since such a belt does not ensure the circulation of fluid in the cooling system and the normal operation of the generator.
Electric fan of the cooling system
When the engine is hot, the electric fan may suddenly turn on even when the ignition is off. Therefore, when performing any work on a hot or running engine, the hands and clothes of the worker must be kept away from the fan blades to avoid injury.
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