2. Start the engine. Turn the steering wheel several times, turning continuously, so that the fluid temperature rises to 50-60°C.
3. The engine should idle. Turn the steering wheel clockwise and counterclockwise several times until it stops.

4. There should be no foaming or cloudiness in the liquid reservoir.
5. Turn off the engine to check the difference in fluid levels between when the engine is running and when the engine is turned off.
Note:
- 1) If the level difference is 5 mm or more, bleed air from the system.
- 2) If the fluid level suddenly rises after the engine is turned off, this indicates that the air has not been completely removed from the system.
- 3) If the air is not completely removed, there will be a rattling sound from the pump and noise from the flow valve, which will lead to a reduction in the service life of the pump.
