1. With the engine stopped, add the required fluid to the upper mark on the plastic tube, which is installed on the reservoir cap stud. Use only special liquid.
2. With the engine off, to clear the system of trapped air, slowly turn the steering wheel several times from one extreme position to another. After that, add fluid to the tank. Repeat this procedure until the level in the tank stops dropping.
3. Ask an assistant to start the engine, and watch the fluid level yourself. Be prepared to add a lot of fluid at once, as the level can drop quickly when the engine is started. At all times, the level must be maintained at least below the lower mark on the tube.
4. With the engine idling, slowly turn the steering wheel two or three times approximately 45°from the center left and right, then turn the steering wheel twice from one end to the other. Do not hold the steering wheel in extreme positions, as this creates a load on the hydraulic system. Repeat this procedure until no more air bubbles enter the reservoir.
5. If abnormal noise is heard from the pipes when turning the steering wheel, this indicates that there is still air in the system. Turn the steering wheel to the straight ahead position and stop the engine. If the level in the tank rises, then the system contains air and the bleeding operation must be continued.
6. When all air has been expelled from the system, stop the engine and allow the system to cool. After cooling, check if the liquid level is at the level of the maximum mark on the tank wall. Add fluid if necessary (see section "Weekly check").