Master brake cylinder (Mazda CX-5KE)

Removal and installation the master brake cylinder

Note: replace the part with a new one after each removal.

1. Remove the battery from the shelf.

2. Disconnect the brake fluid level sensor.

3. Disconnect the spare clutch hydraulic hose in the sequence shown in the figure.



4. Release the hose holders and disconnect the brake lines from the master cylinder.



5. Loosen the nuts and remove the bracket from the master brake cylinder.

6. Remove the brake cylinder assembly with the brake fluid reservoir.

7. Remove the reservoir cap, then unscrew the mounting screw and remove the reservoir from the master brake cylinder.

8. Installation is carried out in the reverse order of removal.

Note: Insert the spare clutch hose and pull to ensure it is securely fastened, then insert it completely.

9. After installation, add brake fluid to the reservoir, remove air from the brake system and check the brake fluid level in the reservoir again.

Checking the brake fluid level sensor

1. Disconnect the brake fluid level sensor connector from the brake master cylinder.

2. Check for conductivity between the terminals of the brake fluid level sensor connector according to the table below.


3. If the test results do not correspond to the values given in the table, replace the brake fluid reservoir with a new one.