You will need: coolant, a clean rag, a container for draining coolant with a capacity of at least 10 liters, a flat-blade screwdriver.
Attention! Use ethylene glycol based coolants (antifreeze).
Attention! Change the coolant only when the engine is cold.
Warning! The coolant is toxic, so be careful when handling it.
Attention! When starting the engine, the expansion tank cap must be closed. Screw the tank cap tightly. The cooling system is under pressure when the engine is running, so if the plug is loosely screwed on, coolant may leak out from under it.
1. Install the car on a flat horizontal platform.
2. Turn away a stopper of a broad tank.
3. Place a container under the drain plug and, having unscrewed the plug..
4.... drain the coolant.
Warning! Antifreeze is deadly poisonous to all living things. In order not to pollute the environment, drain it from the radiator through a funnel (for example, made from a plastic soda bottle).
Note. If the expansion tank is very dirty, remove it (see «Removal and installation of a broad tank») and rinse.
5. Flush the cooling system by screwing in the drain plug and filling the system with water through the expansion tank.
6. Start the engine and let it run until the electric fan turns on.
7. Stop the engine and drain the water.
8. Flush the cooling system until clear water begins to drain.
9. Replace the drain plug.
10. Fill the engine cooling system by pouring coolant into the expansion tank.
11. Start the engine and warm it up to operating temperature (before turning on the electric fan). After that, stop the engine, check the coolant level and, if necessary, add it to the expansion tank to the mark «MAX».
Note. When the engine is running, watch the coolant temperature on the gauge. If the arrow has reached the red zone, and the radiator fan does not turn on, turn on the heater and check how much air passes through it. If the heater supplies heated air, the fan is most likely defective, and if it supplies cold air, then an air lock has formed in the engine cooling system. To remove it, turn off the engine, let it cool and unscrew the plug of the expansion tank. Start the engine, let it run for 3-5 minutes and tighten the reservoir cap.
Note. For better filling of the system without air pockets, periodically squeeze the radiator hoses by hand.
Note. After a few days of operation of the car after replacing the coolant, check its level. Top up if necessary.
Note. If after a very short time the color of the fresh liquid turns brown, then you have poured a fake into which the manufacturer «forgot» add corrosion inhibitors. In addition, one of the signs of a fake is a sharp complete discoloration of the liquid. The dye of high-quality coolant is very resistant and only darkens over time. The liquid, tinted with linen blue, is discolored. Such «antifreeze» needs to be replaced quickly.
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