SEQUENCE OF WORKS
1. Disconnect the brake fluid level sensor connector from the plug.
2. Unscrew the plug. Do not place the plug with the brake fluid level sensor on the cylinder head, as the brake fluid may damage the contacts.
3. Use a syringe to remove the brake fluid from the reservoir.
4. Tilt the reservoir to the side, remove it from the master cylinder and carefully lift it up.

Fig. 14.14. Master brake cylinder: 1 – first brake circuit; 2 – second brake circuit; 3 – piston sealing ring; 4 – Separating sealing ring
5. When installing, insert new connecting bushings into the holes of the master brake cylinder (Fig. 14.14). To do this, lubricate them with brake fluid.
6. Insert the brake fluid reservoir into the connecting sleeves on the master cylinder, press it until the clamps snap into place.
7. Screw the cap onto the tank. Check the operation of the control lamp switch by pressing the middle of the cap.
8. Remove air from the brake hydraulic system.