Conventional Brake System: Maintenance Mazda 3 BL рестайлинг

BRAKE FLUID AIR BLEEDING

Note. Keep the fluid level in the 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

1. SAE J1703 or FMVSS116 DOT-3

Scheme 83

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 out any fluid containing air bubbles, and tighten the bleeder screw. (Scheme 83): Loosening Bleeder Screw Using Commercially Available Flare Nut Wrench Tightening torque Front (MZR 2.0, SKYACTIV-G 2.0, MZR 2.5): 7.0-9.0 N.m {72-91 kgf.cm, 62-79 in.lbf} Front (MZR 2.3 DISI Turbo): 12-16 N.m {123-163 kgf.cm, 107-141 in.lbf} Rear: 12-16 N.m {123-163 kgf.cm, 107-141 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. After air bleeding, inspect the following: Brake operation Fluid leakage Fluid level

Scheme 84

1. Remove the vacuum hose. (See «VACUUM HOSE REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-520389-S27518736672013010300000).) (See «VACUUM HOSE REMOVAL/INSTALLATION [MZR 2.3 DISI TURBO]»(ref-520389-S41780599492013010300000).)
2. Verify that air can be blown from the power brake unit side of the vacuum hose towards the intake manifold side, and that air cannot be blown in the opposite direction. (Scheme 84): Identifying Position Of Check Valve (MZR 2.0, MZR 2.5 And MZR 2.3 DISI Turbo) If there is any malfunction of the inner check valve, replace it together with the vacuum hose as a single unit.

Scheme 85

1. Remove the vacuum hose. (See «VACUUM HOSE REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520389-S32909765192013010300000).)
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. (Scheme 85): Identifying Position Of Check Valve (SKYACTIV-G 2.0) If there is any malfunction of the inner check valve, replace it together with the vacuum hose as a single unit.

Scheme 86

Scheme 87

Scheme 88

Scheme 89

Scheme 90

Scheme 91

1. Remove the battery and battery tray. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-520388-S24063200782013010300000).)
2. Remove the vacuum hose from the vacuum hose clip. (Scheme 86): Identifying Vacuum Hose With Clip
3. Insert a thin flathead screwdriver at the point indicated by the arrow in the figure, push the ring down and disconnect the vacuum hose from the intake manifold. (Scheme 87): Locating Position Of Inserting Thin Flathead Screwdriver
4. Move the vacuum hose as shown in the figure. (Scheme 88): Moving Vacuum Hose
5. Disconnect the vacuum hose connector from the power brake unit while pressing the tabs of the vacuum hose connector. (Scheme 89): Pressing Vacuum Hose Connector Tabs
6. Remove the vacuum hose.
7. Install in the reverse order of removal.
8. Insert the vacuum hose connector to the power brake unit.
9. Verify that the vacuum hose is inserted so that the connector contacts the power brake unit flange. (Scheme 90): Identifying Vacuum Hose Connector Contacts With Power Brake Unit Flange
10. Verify that the vacuum hose is inserted so that the joint contacts the intake manifold ring. (Scheme 91): Identifying Contacts Of Joint With Intake Manifold Ring

Scheme 92

Scheme 93

Scheme 94

Scheme 95

1. Remove the plug hole plate. (See «PLUG HOLE PLATE REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520419-S32364526322013010300000).)
2. Remove the battery and battery tray. (See «BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520427-S28538867222013010300000).)
3. Remove the vacuum hose from the vacuum hose clip. (Scheme 92): Identifying Vacuum Hose, Clip And Clamp
4. Pinch open the clamp using pliers and disconnect the vacuum hose from the vacuum pump.
5. Move the vacuum hose as shown in the figure. (Scheme 93): Moving Vacuum Hose
6. Disconnect the vacuum hose connector from the power brake unit while pressing the tabs of the vacuum hose connector. (Scheme 94): Pressing Tabs Of Vacuum Hose Connector
7. Remove the vacuum hose.
8. Install in the reverse order of removal.
9. Insert the vacuum hose connector to the power brake unit.
10. Verify that the vacuum hose is inserted so that the connector contacts the power brake unit flange. (Scheme 95): Identifying Vacuum Hose Connector Contacts With Power Brake Unit Flange

Scheme 96

Scheme 97

Scheme 98

Scheme 99

1. Remove the charge air cooler cover. (See «INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZR 2.3 DISI TURBO]»(ref-520406-S34114749492013010300000).)
2. Remove the charge air cooler. (See «INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZR 2.3 DISI TURBO]»(ref-520406-S34114749492013010300000).)
3. Insert a thin flathead screwdriver at the point indicated by the arrow in the figure, push the ring down and disconnect the vacuum hose from the intake manifold. (Scheme 96): Locating Position Of Inserting Thin Flathead Screwdriver
4. Remove the vacuum hose from the vacuum hose clip. (Scheme 97): Identifying Vacuum Hose And Hose Clip
5. Pinch open the clamps using pliers and disconnect the vacuum hoses from the insulator bracket as shown in the figure. (Scheme 98): Identifying Vacuum Hose And Clamp
6. Pinch open the clamp using pliers and disconnect the vacuum hose from the power brake unit.
7. Remove the vacuum hose.
8. Install in the reverse order of removal.
9. Verify that the vacuum hose is inserted so that the joint contacts the intake manifold ring. (Scheme 99): Identifying Contacts Of Joint With Intake Manifold Ring

Scheme 100

1. Measure the distance from the center of the upper surface of the pedal pad to the floor covering and verify that it is as specified. (Scheme 100): Identifying Brake Pedal Height If not within the specification, replace the brake pedal. Brake pedal height (reference value) MZR 2.0, SKYACTIV-G 2.0, MZR 2.5: 125.0 mm {4.921 in} MZR 2.3 DISI Turbo: 128.9 mm {5.075 in}

Master cylinder fluid pressure (MZR 2.3 DISI Turbo)