Draining liquid
2. Cool the engine, remove the radiator cap.
3. Place a container to collect the coolant under the radiator. If the drain cock has a branch pipe, attach a piece of hose of a suitable diameter to it, which will make it easier to collect the antifreeze. Open the cock (you may need pliers).
4. After you have drained the radiator, move the container under the block. The drain plug is located at the front of the engine block. Unscrew the plug and drain the fluid.
5. Inspect the condition of the fluid, hoses, clamps and pipes of the radiator and engine.
6. Replace defective parts.
Flushing
7. Rinse the radiator with clean water, preferably under pressure.
8. Deposits in the cooling system can be removed by chemical decomposition. Follow the cleaning fluid manufacturer's instructions.
9. Flush the expansion tank.
Filling
10. Close the drain holes.
11. Set the heater temperature control to the maximum heating position.
12. Loosen the cooling system drain screw (see fig. 28.13).
13. Slowly (approximately 5l/min) fill with new coolant until water starts to come out of the drain screw. Tighten the screw and add liquid until the radiator is full. Add liquid to the expansion tank up to the MIN mark.
14. Start the engine with the radiator cap removed and warm it up until the thermostat opens.
15. Turn off the engine and let it cool. Add liquid to the radiator until its tubes are closed.
16. Squeeze the upper radiator hose to remove excess air.
17. Start the engine, check for leaks.