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Home › Subaru › 2017 › WRX Base › Repair and Diagnosis › Brakes › Mechanical - Hydraulic › Brake System › Front Disc Brake Assembly › Installation › Except For STI Model

Except For STI Model

NOTE: Before installation, remove the pad clip and remove mud, foreign matter and rust from the caliper body assembly and the support - front disc brake.
  1. Check each part. <Ref. to INSPECTION , Front Disc Brake Assembly.>
  2. Apply a thin coat of grease to the support - front disc brake.

    Preparation items: 

    Grease: An item contained in the pad kit, Molykote M7439 or equivalent 

    Fig 1: Applying Thin Coat Of Grease To Front Disc Brake Support
    G05662858Courtesy of SUBARU OF AMERICA, INC.
  3. Install the support - front disc brake.

    Tightening torque: 

    Mounting bolt: 80 N.m (8.2 kgf-m, 59 ft-lb) 

  4. Apply a thin coat of grease to the pad clip.

    Preparation items: 

    Grease: An item contained in the pad kit, Molykote M7439 or equivalent 

    Fig 2: Applying Thin Coat Of Grease To Pad Clip
    G10297772Courtesy of SUBARU OF AMERICA, INC.
  5. Install the pad clip.
  6. Press back the piston with a disc brake piston tool as needed.
    CAUTION: When pressing back the piston, the clearance between pad and disc rotor becomes large, which makes the brake pedal effort softer.
    After the installation of front wheel, be sure to perform the adjustment of the clearance and the pedal effort by depressing the brake pedal several times.
  7. Install the brake pad.
    CAUTION:
    • Be sure to install so that the pad return spring faces the input side of the direction of brake rotor rotation, as shown in the figure.
    • Correctly install the pad return spring to the supporting surface of the pad clip as shown in the figure.
    • If the pad return spring is deformed or damaged, replace the brake pad with a new part.
    Fig 3: Installing Pad Return Spring To Pad Clip Supporting Surface
    G11579536Courtesy of SUBARU OF AMERICA, INC.
    NOTE: Install the brake pad indicator in proper direction.
    Fig 4: Brake Pad Indicator Proper Direction
    G11579537Courtesy of SUBARU OF AMERICA, INC.
  8. Install the caliper body assembly.

    Tightening torque: 

    27 N.m (2.8 kgf-m, 19.9 ft-lb) 

  9. Connect the brake hose using a new brake hose gasket.

    Tightening torque: 

    26 N.m (2.7 kgf-m, 19.2 ft-lb) 

  10. Bleed air from the brake system. <Ref. to BRAKE LINE , PROCEDURE, Air Bleeding.>
  11. Install the front wheels.

    Tightening torque: 

    120 N.m (12.2 kgf-m, 88.5 ft-lb) 

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