Conventional Brake System: Maintenance Mazda CX-5 I

BRAKE FLUID AIR BLEEDING

Note. Keep the fluid level in the brake fluid reserve tank at 3/4 full or more during the air bleeding. Begin air bleeding with the brake caliper that is furthest from the master cylinder.

Brake fluid type SAE J1703 or FMVSS116 DOT-3

Scheme 32

1. Remove the cap from the brake fluid reserved tank and add brake fluid.
2. Remove the bleeder cap on the brake caliper, and attach a vinyl tube to the bleeder screw.
3. Place the other end of the vinyl tube in a clear container and fill the container with fluid during air bleeding.
4. Working with two people, one should pump the brake pedal several times and depress and hold the pedal down.
5. While the brake pedal is depressed, the other should loosen the bleeder screw using a commercially available flare nut wrench, drain any fluid containing air bubbles, and tighten the bleeder screw. Tightening torque 6.9-9.8 N.m {71-99 kgf.cm, 62-86 in.lbf}
6. Repeat Steps 4 and 5 until no air bubbles are seen.
7. Perform air bleeding as described in the above procedures for all brake calipers.
8. Clean the brake calipers.
9. After air bleeding, inspect the following: Brake operation Fluid leakage Fluid level (Scheme 32): Loosening Bleeder Screw Using Flare Nut Wrench

Scheme 33

1. Remove the vacuum hose. (See «VACUUM HOSE REMOVAL/INSTALLATION»(ref-615413-S37199264122014051000000) ).
2. Verify that air can be blown from the power brake unit side of the vacuum hose towards the vacuum pump side, and that air cannot be blown in the opposite direction. If there is any malfunction of the inner check valve, replace it together with the vacuum hose as a single unit. (Scheme 33): Locating Vacuum Line Power Brake Unit And Vacuum Pump Side

Scheme 34

Scheme 35

1. Pinch open the clamp using pliers and disconnect the vacuum hose. (Scheme 34): Pinching Clamp Using Pliers
2. Pinch open the clamp using pliers and disconnect the vacuum hose.
3. Remove the vacuum hose.
4. Install in the reverse order of removal. (Scheme 35): Identifying Vacuum Hose

Scheme 36

1. Measure the distance from the center of the upper surface of the pedal pad to the insulator and verify that it is as specified. If not within the specification, inspect the following items and repair or replace the applicable part if there is any malfunction. Power brake unit installation condition Deformation of or damage to the power brake unit fork Brake pedal installation condition Clevis pin wear If there is no malfunction in the above items, replace the brake pedal. Brake pedal height (reference value) 136 mm {5.35 in} (Scheme 36): Identifying Brake Pedal Height