Master brake cylinder — removal and installation

Withdrawal

All cars

1.

WARNING: If brake fluid comes into contact with the paintwork, the affected area must be washed immediately with cold water.

Disconnect the wire "masses" from the battery.

2. Disconnect the plug connector on the filler cap.

• 1.Pull back the tongue.
• 2.Press on the clips.
• 3.Disconnect the plug connector.

3.

CAUTION: Keep the filler cap free of dirt.

Remove the filler cap of the hydraulic brake reservoir.



4. Loosen the nuts on both front wheels.

5. Raise and support the vehicle. See Section 100-02 for more information.

6. Remove the front wheels.

7. Release the bleed nipple.

• 1.Remove the dust cover.
• 2.Release the bleed nipple.

8.

NOTE: Perform this procedure on both front brake lines.

Remove the brake fluid from the brake fluid reservoir.

• 1. Connect the bleed tube to the bleed nipple and place it in a suitable container.
• 2. Press the brake pedal until the release of brake fluid stops.
• 3.Tighten the bleed nipple.

9. Lower the car.

10. Remove the air filter. See Section 303-12 for more information.

11. Remove the final pipeline of the air filter.

12. Disconnect the plug connector of the central electrical box.



13. Turn out the screw of fastening of the central electrodistributive box.



14. Disconnect the central electrical box. Move the air filter to another position.




15. Disconnect the brake fluid supply line.



Vehicles with a course stability function

16. Disconnect the plug connector of the pressure sensors of the brake system.



All cars

17.

CAUTION: Plug brake lines to prevent leakage of brake fluid and ingress of dirt.

Disconnect the brake lines.




Vehicles with anti-lock brakes

18.

CAUTION: Plug brake lines to prevent leakage of brake fluid and ingress of dirt.

Disconnect the brake lines.



All cars

19.

CAUTION: Before removing the master cylinder, make sure that vacuum is released from the brake booster. This can be done by disconnecting the vacuum line from the brake booster.

Remove the vacuum hose from the brake booster.



20. Remove the main brake cylinder.

Installation

All cars

1.

CAUTION: Before installing the brake master cylinder, make sure that the vacuum seal is present and that the contact surfaces are clean.

NOTE: After installation, bleed the brake system. See Section 206-00 for more information.

When installing, follow the removal procedure in reverse order.





Vehicles with anti-lock brakes



All cars