Contents: Dismantling ↳ Installation ↳
Before removing the master cylinder, make sure there is no vacuum in the brake booster. To do this, either disconnect the vacuum line from the brake booster or press the brake pedal several times with the engine not running.
Dismantling
Disconnect the battery ground cable.
Remove the air filter with the outlet pipe.
Disconnect all central connectors on the master cylinder, including the one on the expansion tank cap, and unscrew the cap.
Empty the expansion tank.
Connect the hose to the bleed valve and drain the brake fluid into a suitable container.
Loosen the bleed valve.
Pump the brake pedal until the expansion tank is completely empty.
Tighten the bleed valve.
Remove the brake pipes between the hydraulic module and the master cylinder.
Unscrew the brake pipes.
Remove the brake pressure reduction valves.
Remove the master brake cylinder (two nuts).
Installation
Always install the master cylinder with a new vacuum gasket. Rub the gasket with a thin layer of Vaseline and clean the connecting surfaces of the brake booster, otherwise stray air can get into the booster and the efficiency of the servo control will decrease or there will be interruptions in its operation.
Assemble the structural elements in reverse order.
Bleed the brake system as described above.
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