By pressing the block retainer, we disconnect the block of wires from the brake fluid level sensor.
After unscrewing the tank cap, we remove it and use a rubber bulb to collect the liquid from the tank.
Using sliding pliers, squeeze the ends of the clamp securing the fluid supply hose to the clutch master cylinder and slide the clamp along the hose.
We disconnect the hose from the tank fitting.
Using a special 10 mm wrench for brake pipe fittings, unscrew the pipe fittings..
…and we move the tubes away from the main brake cylinder.
Using a 13 mm socket, unscrew the two nuts securing the cylinder to the brake booster…
…and remove the main brake cylinder together with the hydraulic drive reservoir.
You can replace the brake fluid level sensor and the hydraulic reservoir on the car without dismantling the master brake cylinder. For clarity, we show these operations on a removed master brake cylinder.
We remove the sealing ring.
Using a screwdriver, push out the brake fluid level sensor…
…and we remove the sensor from the tank hole.
Using a screwdriver, release the shoe retainer..
…and moving it, we remove the sensor wiring block from the tank.
We remove the tank, overcoming the resistance of the rubber connecting bushings.
We squeeze the upper edge of the bushing with our fingers and remove it from the hole in the master brake cylinder.
We remove the other connecting sleeve in the same way.
We install the master brake cylinder in the reverse order.
We bleed the hydraulic drive of the brake system (see Bleeding the hydraulic brake system).