Brake master cylinder

BRAKE MASTER CYLINDER

Service repair no - 70.30.08

Remove

1. Remove underbonnet closing panel. See BODY, Exterior fittings.

2. Disconnect fluid level switch.
3. Position cloth under master cylinder to absorb spilled fluid.

CAUTION: Do not allow brake fluid to contact paint finished surfaces as paint may be damaged. If spilled, remove fluid and clean area with clean warm water.

4. Disconnect pipe unions at master cylinder.

CAUTION: Plug the connections.

5. Remove 2 nuts and plain washers securing master cylinder to brake servo.
6. Remove master cylinder.
7. Collect and discard ’O’ ring.

Refit

1. Clean master cylinder and servo mating surfaces.
2. Fit new ’O’ ring to master cylinder.
3. Align servo push rod and fit master cylinder to servo.
4. Secure master cylinder with nuts and plain washers. Tighten to 20 Nm.
5. Connect primary and secondary brake pipes, tighten unions to 15 Nm.
6. Connect fluid level switch.
7. Bleed brake system. See Adjustments.
8. Fit underbonnet closing panel. See BODY, Exterior fittings.