When performing work that requires complete draining of the liquid from the cooling system, be sure to flush the system with clean water, blow with compressed air to remove residual water
Fill with coolant, bleed the system and measure its actual frost resistance
The system must provide frost resistance:
- - at temperatures up to - 25 ° С ± 2 for countries with a cold and temperate climate;
- - at temperatures up to -40 ° C ± 2 for countries with a very cold climate.
Before starting work, cover electrical equipment with plastic bags.
According to the manufacturer's recommendation, the coolant should be changed after six years of operation or 90,000 km, whichever comes first
- - coolant; Use GLACEOL RX coolant (type D).
- - blank cloth;
- - container for draining coolant with a capacity of at least ten liters;
- - pliers
Replace the coolant on a cold engine
We install the car on a lift or on a viewing ditch
Open the cap of the expansion tank
Remove the crankcase protection and engine mudguard
Squeeze the ears of the clamp for attaching the inlet hose of the expansion tank 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 coolant, put the hose on the pipe
Pour liquid into the expansion tank up to the "max" mark on the wall of the tank
Start the engine and warm it up to operating temperature (before turning on the fan).
After that, stop the engine and check the coolant level
If necessary, add it to the expansion tank to the “max” mark
When the engine is running, you need to monitor the temperature of the coolant according to the pointer
If the pointer has reached the overheating zone, and the radiator fan has not turned 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 the air lock, turn off the engine, let it cool down, and unscrew the filler cap
Start the engine, let it run for 3-5 minutes, and close the filler cap
To better fill the system without air pockets, you need to periodically squeeze the radiator hoses by hand.
After a few days of operation of the car after replacing the coolant, you need to check its level. If necessary, add liquid.
Another article on draining and refilling coolant - Method coolant change Renault Megane 2