Pic. 6.2. Plug location (1) drain hole of cylinder block
2. Unscrew the drain plug of the cylinder block and drain the coolant from the engine (pic. 6.2).
3. Remove the expansion tank and drain the coolant from it.
4. After draining the coolant, fill the radiator with clean water to flush the cooling system.
5. Apply 3M Nut Locking Part No. 4171 to the cylinder block drain plug threads and torque to 39 Nm.
6. Tighten the radiator cap.
7. Install the expansion tank.
Pic. 6.3. The location of the bolt to remove air from the cooling system: 1 - thermostat housing; 2 - a bolt for removing air, 12–15 Nm; 3 - gasket
8. Turn out a bolt for removal of air from the cooling system and replace a sealing lining (pic. 6.3).
9. Pour coolant into the radiator until it overflows from the cooling system bleed bolt hole, then tighten the bolt.
10. Slowly pour coolant into the radiator until it is full (to the base of the filler neck), and also fill the expansion tank to the mark «FULL».
11. Screw on the radiator cap tightly.
12. Start the engine and warm it up until the thermostat opens. To check, touch the radiator hose with your hand - when the thermostat is open, it should be warm.
13. After opening the thermostat, press the accelerator pedal several times, then turn off the engine.
14. Let the engine cool down and add coolant to the expansion tank up to the mark «FULL».