FixVault
Home › Mazda › 2021 › CX-5 Signature › Repair and Diagnosis › External Pages › Different car › Section 142 (Conventional Brake System) › Power Brake Unit Removal/Installation

Power Brake Unit Removal/Installation

WARNING: This page is about a different car, the 2017 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.

Replacement Part 

Gasket
Quantity: 1
Location of use: Power brake unit		 Brake switch
Quantity: 1
Location of use: Brake pedal

Oil and Chemical Type 

Brake fluid type

Type: SAE J1703 or FMVSS116 DOT-3

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 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.
  1. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
  2. Remove the following parts:
    1. Windshield wiper arm and brade (See WINDSHIELD WIPER ARM AND BLADE REMOVAL/INSTALLATION .)
    2. Cowl grille (See COWL GRILLE REMOVAL/INSTALLATION .)
    3. Windshield wiper motor and link (See WINDSHIELD WIPER MOTOR AND LINK REMOVAL/INSTALLATION .)
    4. Keyless beeper (See KEYLESS BEEPER REMOVAL/INSTALLATION .)
    5. Cowl panel (See COWL PANEL REMOVAL/INSTALLATION .)
  3. Remove the master cylinder. (See MASTER CYLINDER REMOVAL/INSTALLATION .)
  4. Remove in the order indicated in the table.
  5. Install in the reverse order of removal.
  6. After installation, add brake fluid, bleed the air, and inspect for fluid leakage. (See BRAKE FLUID AIR BLEEDING .)
  7. Remove the brake switch. (See BRAKE PEDAL REMOVAL/INSTALLATION .)
  8. Inspect the brake pedal. (See BRAKE PEDAL INSPECTION .)
  9. Install a new brake switch. (See BRAKE PEDAL REMOVAL/INSTALLATION .)
Fig 1: Removing/Installing Power Brake Unit Components With Torque Specifications
G11426928Courtesy of MAZDA MOTORS CORP.
COMPONENT DESCRIPTION

1 Vacuum hose
(See VACUUM HOSE REMOVAL/INSTALLATION .)
2 Snap pin
3 Clevispin
4 Nut
5 Power brake unit
6 Gasket
About FixVault