- if the liquid level in the system stops decreasing after a short start of the engine, leave the engine running;
- quickly turn the steering wheel several times in one direction and the other so that the air leaves the cylinder. In this case, do not twist the steering wheel too much. It will be enough if, when turning in both directions, the hydraulic booster piston does not reach the stop a little;
- during this operation, monitor the fluid level in the tank. If it decreases, the liquid should immediately be added and kept at the level of the Max mark. After topping up, it is necessary to wrap the cork. Continue until air bubbles stop appearing in the reservoir when turning the steering wheel from one side to the other.