Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSMAZDA2006B4000 BASE, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)BRAKESMECHANICAL - HYDRAULICCONVENTIONAL BRAKE SYSTEMBRAKE MASTER CYLINDERASSEMBLY

2006 Mazda B4000 Base, Automatic

Brake Master Cylinder: Assembly

2006 Mazda B4000 Base, AutomaticSECTION Assembly

WARNING:

Brake fluid contains polyglycol ethers and polyglycols. Avoid contact with eyes. Wash hands thoroughly after handling. If brake fluid contacts eyes, flush eyes with running water for 15 minutes. Get medical attention if irritation persists. If taken internally, drink water and induce vomiting. Get medical attention immediately.

Lubricate the new piston assembly seals using clean DOT 3 brake fluid.

Fig 1: Installing Secondary Piston Assembly
Courtesy of MAZDA MOTORS CORP.
Install the secondary piston assembly.

Fig 2: Installing Primary Piston Assembly
Courtesy of MAZDA MOTORS CORP.
Install the primary piston assembly.

Fig 3: Depressing Primary Piston Then Installing Snap Ring
Courtesy of MAZDA MOTORS CORP.
Install the snap ring.
1. Depress the primary piston.
2. Install the snap ring.
NOTE:
- Fill cruise control deactivator switch using clean DOT 3 brake fluid.
If equipped with cruise control, install the cruise control deactivator switch.
- To install, tighten to 17 N-m (1.7 kgf-m, 13 ft-lbf).
Install the brake master cylinder reservoir.
NOTE:
- Bleed the brake master cylinder prior to installation. See COMPONENT BLEEDING .
Install the brake master cylinder. See BRAKE MASTER CYLINDER .

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.