Mazda CX-9 Grand Touring. Manual — part 130

Fig. 1: Identifying Conventional Brake System Parts Location
Courtesy of MAZDA MOTORS CORP.

AIR BLEEDING

Brake fluid type SAE J1703, FMVSS 116 DOT-3

1. Remove the bleeder cap on the brake caliper, and attach a vinyl tube to the bleeder screw.

2. Place the other end of the vinyl tube in a clear container and fill the container with fluid during air

bleeding.

3. Working with two people, one should pump the brake pedal several times and depress and hold the pedal

down.

4. 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.

Tightening torque

Front: 5.9-9.8 N.m {61-99 kgf.cm, 53-86 in.lbf}

Rear: 6.9-9.8 N.m {71-99 kgf.cm, 61-86 in.lbf}

Fig. 2: Checking Brake Pedal
Courtesy of MAZDA MOTORS CORP.

5. Repeat Steps 3 and 4 until no air bubbles are seen.

CAUTION:



Brake fluid will damage painted surfaces. Be careful not to spill any
on painted surfaces. If it is spilled, wipe it off immediately.

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.

2008 Mazda CX-9 Grand Touring

2008 BRAKES Conventional Brake System - Mazda CX-9

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6. Perform air bleeding as described in the above procedures for all brake calipers.

7. After air bleeding, inspect the following:



Brake operation



Fluid leakage



Fluid level

BRAKE PEDAL INSPECTION

PEDAL HEIGHT INSPECTION

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) 206.3 mm {8.122 in}

Fig. 3: Identifying Pedal Height
Courtesy of MAZDA MOTORS CORP.

2008 Mazda CX-9 Grand Touring

2008 BRAKES Conventional Brake System - Mazda CX-9

Microsoft

Sunday, November 15, 2009 9:48:49 AM

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© 2005 Mitchell Repair Information Company, LLC.

PEDAL PLAY INSPECTION

1. Pump the pedal several times to release the vacuum in the power brake unit.

2. Gently depress the pedal by hand and measure the pedal play.



If not within the specification, inspect the wear of the clevis pin. Replace it if there is any
malfunction.

Brake pedal play 2-5 mm {0.08-0.19 in}

PEDAL-TO-FLOOR CLEARANCE INSPECTION

1. Start the engine and depress the brake pedal with a force of 147 N {15.0 kgf, 33.0 lbf}.

2. 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.



If it is less than the specification, inspect for air in the brake line.

Brake pedal-to-floor clearance (Brake pedal when depressed at 147 N {15.0 kgf, 33.0 lbf})
97.6 mm {3.84 in} or more

Fig. 4: Identifying Pedal-To-Floor Clearance
Courtesy of MAZDA MOTORS CORP.

NOTE:



If there is no malfunction in the clevis pin, there is a possibility
that the power brake unit has some malfunction. Verify that
there are no malfunctions, and replace it if necessary.

2008 Mazda CX-9 Grand Touring

2008 BRAKES Conventional Brake System - Mazda CX-9

Microsoft

Sunday, November 15, 2009 9:48:49 AM

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© 2005 Mitchell Repair Information Company, LLC.

BRAKE PEDAL REMOVAL/INSTALLATION

1. Remove in the order indicated in the table.

2. Install in the reverse order of removal.

Fig. 5: Identifying Brake Pedal Components & Torque Specifications

CAUTION:



The clearance between the brake switch and the brake pedal is
automatically adjusted to the correct amount when the brake switch
is inserted into the installation hole on the brake pedal and rotated to
fix in place. If the brake switch is not properly installed, the clearance
may be incorrect, causing a brake light malfunction. Therefore,
always verify that the brake pedal is properly installed and fully
released before installing the brake switch to the pedal.



Once the brake switch clearance has automatically been adjusted, it
cannot be adjusted again. Therefore, replace the switch with a new
one when replacing the power brake unit or the pedal, or performing
any procedure that changes the pedal stroke.

2008 Mazda CX-9 Grand Touring

2008 BRAKES Conventional Brake System - Mazda CX-9

Microsoft

Sunday, November 15, 2009 9:48:49 AM

Page 5

© 2005 Mitchell Repair Information Company, LLC.