Power Brake Unit Removal/Installation: Notes
WARNING: This page is about a different car, the 2018 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
- 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 performing any procedure that changes the brake pedal stroke.
- Brake fluid will damage painted surfaces. Be careful not to spill any on painted surfaces. In addition, if there is any brake fluid on the wiring harness, the wire insulation may corrode causing a malfunction such as a short circuit. If brake fluid gets on a painted surface or wiring harness, wash and flush it off completely with water immediately.
NOTE:
- Tighten the brake pipe flare nut using any commercially available flare nut wrench.
- Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
- Remove the battery. (See BATTERY REMOVAL/INSTALLATION (VIN Y) .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.5 (VIN M)] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.5 (VIN 5)] .)
- Remove the windshield wiper arm and blade. (See WINDSHIELD WIPER ARM AND BLADE REMOVAL/INSTALLATION .)
- Remove the cowl grille. (See COWL GRILLE REMOVAL/INSTALLATION .)
- Remove the windshield wiper motor and link. (See WINDSHIELD WIPER MOTOR AND LINK REMOVAL/INSTALLATION .)
- Remove the cowl panel. (See COWL PANEL REMOVAL/INSTALLATION .)
- Remove the air inlet pipe. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION (VIN Y) .) (SKYACTIV-G 2.5T (VIN Y))
- Remove the master cylinder. (See MASTER CYLINDER REMOVAL/INSTALLATION .)
- Remove in the order indicated in the table.
- Install in the reverse order of removal.
- After installation, add brake fluid, bleed the air, and inspect for fluid leakage. (See BRAKE FLUID AIR BLEEDING .)
- Remove the brake switch. (See BRAKE PEDAL REMOVAL/INSTALLATION .)
- Inspect the brake pedal. (See BRAKE PEDAL INSPECTION .)
- Install a new brake switch. (See BRAKE PEDAL REMOVAL/INSTALLATION .)COMPONENT DESCRIPTION
1 Vacuum hose 2 Snap pin 3 Clevis pin 4 Nut 5 Power brake unit 6 Gasket 7 Fork
(See Fork Installation Note .)8 Locknut