Even so, care must be taken when removing the cover. Wrap a thick cloth around the lid and slowly turn it counterclockwise to the first stop. Move away from the radiator while depressurizing.
When you are sure that the pressure has been relieved, push down on the cap by wrapping it in a cloth, twist and remove it.
Attention! Engine coolant damages paintwork.
Attention! If engine coolant comes into contact with a painted surface, wash it off immediately.
Pic. 2.305. Expansion tank of the cooling system
Remove the cap of the expansion tank of the cooling system (pic. 2.305).
Remove the bottom cover.
Pic. 2.306. Drain plug of the radiator of the cooling system
Remove the radiator drain plug and drain the engine coolant into a container (pic. 2.306).
Flush the cooling system with pressurized water until the outlet water becomes discolored.
Let the water drain completely from the system.
Tighten the radiator drain plug.
- Tightening torque: 1.2 - 1.5 Nm.
Select the concentration of antifreeze according to the table 2.34.
Add coolant to the expansion tank of the cooling system up to the maximum mark.
Install the cooling system cover.
Attention! If the coolant temperature gauge needle enters the red zone, stop the engine and wait until it cools down to prevent overheating.
Attention! After that, identify the failed element and repair or replace it.
Start the engine and let it idle until the temperature gauge needle is in the center of the scale and the engine speed is less than 1500 min-1.
After the engine has warmed up, do the following while monitoring the engine coolant temperature with a thermometer.
Run the engine for 2500 min-1 for 5 min.
Run the engine for 3000 min-1 for 5 seconds and then let it idle.
Run the engine again for 3000 min-1 for 5 seconds twice.
Stop the engine and let it cool down.
Check coolant level.
If the level is low, add coolant to the expansion tank of the cooling system up to the maximum mark.
Check for coolant leakage.
If there is a leak, identify the defective part and repair or replace it.