1. Insert the screw plugs into the outlet holes of the brake line and screw them in so that they do not let air in, but at the same time they can be easily loosened.
2. Fill the reservoir with brake fluid.
3. Remove one plug and insert the piston into the cylinder so as to expel air from it. You can press on the piston with a large screwdriver.
4. To prevent air from escaping back into the master cylinder, reinstall and tighten the plug before releasing pressure on the piston.
Note. Repeat this procedure until the fluid flowing out of the outlet no longer contains air bubbles, then go to the next hole and repeat the entire procedure again. Make sure that the brake fluid reservoir is not empty, because. Otherwise, air may enter the system.
5. Put a new O-ring on the vacuum booster, install the master cylinder and fixing nuts and tighten them to the specified torque.
6. Connect tubes and electrical connectors. Check the operation of the brake fluid level sensor by pressing on the black bulb at the top of the reservoir. At the same time, the light on the dashboard should light up.
7. On manual transmission models, bleed the hydraulic clutch system.
8. On models equipped with a differential pressure indicator, press the zero reset pin protruding from the switch.
9. Bleed the brake system.