Checking and topping up the coolant should be done on a cold engine.
It is necessary to add coolant of the same brand as it was filled in.
Pour coolant into the expansion tank no higher than the MAX mark on the wall of the tank.
During the operation of the car, you need to monitor the level of coolant.
A sharp decrease or increase in the coolant level is a signal to check the engine cooling system.
If the antifreeze turns brown, it means that the antifreeze is not of high quality and an anti-corrosion additive was not added to it.
It is necessary to replace the coolant as soon as possible in this case.
The expansion tank in the car is installed in the engine compartment on the left side
When checking and topping up, the coolant level must be between the MAX and MIN marks on the wall of the expansion tank.
To top up the coolant, unscrew the plug of the expansion tank
Fill liquid to the required level
Tighten the cap of the expansion tank. Wrap the cap of the expansion tank tightly.
The expansion tank is under pressure when the engine is running, if the plug is loosely screwed on, coolant may leak.
Coolant change
Replace the coolant after 90 thousand kilometers or after 6 calendar years.
5.45 liters of coolant is poured into the cooling system.
Glaceol RX Fluid (Type D) is recommended.
Replace the coolant on a cold engine.
There is no drain cock on the radiator and hoses, so you need to remove the hose from the radiator to drain the coolant.
Install the car on a lift or viewing hole
Unscrew the plug of the expansion tank
Unscrew the valve plug to release air
Removing the engine crankcase protection (article - How to remove Renault Sandero engine protection and mudguards).
We substitute a container to drain the liquid.
Squeeze the clamp of the lower radiator hose with pliers and slide the clamp along the hose
Remove the hose from the radiator pipe and drain the liquid into a substituted container
After draining the liquid, close the air release valve plug and flush the cooling system with water.
After flushing the system, blow it out with compressed air.
Connect the lower radiator hose
Unscrew the samples ku the air release valve and fill in the coolant
After the air stops coming out of the valve and liquid appears from it, we tighten the valve plug and the plug of the expansion tank
We start the engine, bring the crankshaft speed to 2500 min -1 and let it run until the fan turns on.
After that, turn off the engine and check the coolant level.
If necessary, add it up to the MAX mark.
While the engine is running, follow the temperature of the coolant using the gauge, if the gauge scale is completely shaded 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 cap of the expansion tank.
Start the engine, let it run for 3-5 minutes and tighten the reservoir cap.
To better fill the system without air pockets, periodically squeeze the radiator hoses with your hand.
After a few days of operation of the car after replacing the coolant, check its level. Refill the level if necessary.
If after a very short time the color of the fresh liquid turns brown, then you have filled in a fake, in which the manufacturer forgot to add corrosion inhibitors.
In addition, one of the signs of a fake is a sharp complete discoloration of the liquid.
High quality coolant dye is very durable and will only darken over time.
The liquid, tinted with linen blue, is discolored. Such antifreeze must be replaced faster.
