Brake Master Cylinder: Service and Repair

Master Cylinder Replacement

NOTICE
- Do not spill brake fluid on the vehicle; it may damage the paint. If brake fluid gets on the paint, wash it off immediately with water.

- Be careful not to damage or bend the brake lines during removal and inspection.

- To prevent the brake fluid from flowing, plug and cover the hose ends and joints with a shop towel or equivalent.


NOTE: When you apply the silicone grease, make sure not to get any on the terminal part of the connectors and surrounding switches. Also, do not touch the switches and the terminal part of the connector with hands or gloves that have silicone grease on them.

1. Remove the left and right upper fender trim (A) and left upper trim (B).

2. Remove the under-hood fuse/relay box, and move it aside. Under-Hood Fuse/Relay Box Removal/Installation

3. Remove the strut brace. Service and Repair

4. Remove the reservoir cap and brake fluid from the master cylinder reservoir with a syringe.






5. Disconnect the brake fluid level switch connector (A).

6. Disconnect the brake lines (B) from the master cylinder (C). To prevent spills, cover the line joints with rags or shop towels.

7. Remove the master cylinder mounting nuts (D) and the washers.

8. Remove the master cylinder from the brake booster (E). Be careful not to bend or damage the brake lines when removing the master cylinder.

9. Remove the O-ring (F) from the master cylinder.

10. Install the master cylinder in the reverse order of removal, and note these items:
- Before installing the master cylinder, check the brake booster pushrod clearance. Adjustments

- Replace the O-ring whenever the master cylinder is removed.

- Coat the O-ring with Shin-Etsu(R) silicone grease.

- Bleed the brake system. Service and Repair

- Check the brake pedal height and free play after installing the master cylinder, and adjust it if necessary.

11. Bleed the brake system. Service and Repair

12. Spin the wheels to check for brake drag.