CAUTION
- Wear appropriate work clothing, including a cap, protective goggles and protective shoes when performing any work.
- Before removal, installation or disassembly, be sure to clarify the failure. Avoid unnecessary removal, installation, disassembly and replacement.
- Use SUBARU genuine grease etc. or equivalent. Do not mix grease etc. of different grades or manufacturers.
- Before securing a part on a vise, place cushioning material such as wood blocks, aluminum plate, or cloth between the part and the vise.
- Be sure to tighten fasteners including bolts and nuts to the specified torque.
- Place shop jacks or rigid racks at the specified points.
GENERAL TOOL
| TOOL NAME | REMARKS |
|---|---|
| Circuit tester | Used for measuring resistance and voltage. |
| Snap ring pliers | Used for removing and installing snap rings. |
GENERAL TOOL DESCRIPTION CHART
Scheme 77
Scheme 78
- Lift up the vehicle, and then remove the front wheels.
- Remove the caliper bolt.
- Raise the caliper body and support it. NOTE: Do not disconnect the brake hose from the caliper body.
- Remove the pads.
Scheme 79
Scheme 80
Scheme 81
Scheme 82
- Apply a thin coat of Molykote M7439 (Part No. K0770YA000) or grease contained in the pad kit to the pad clip.
- Apply a thin coat of Molykote AS880N (Part No. K0777YA010) or grease contained in the pad kit to both surfaces of the pad inner shim.
- Install the pad to support. 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 illustration. Correctly install the pad return spring to the supporting surface of the pad clip as shown in the illustration. If the pad return spring is deformed or damaged, replace the brake pad. NOTE: Install the pad indicator in proper direction.
- Install the caliper body to the support. Tightening torque: 27 N.m (2.75 kgf-m, 19.9 ft-lb)
PROCEDURE
| CAUTION | Do not let brake fluid come into contact with the painted surface of the vehicle body. Wash away with water immediately and wipe off if it is spilled by accident. Avoid mixing brake fluid of different brands to prevent fluid performance from degrading. Be careful not to allow dirt or dust to enter the reservoir tank. |
MASTER CYLINDER
Note. When the master cylinder is disassembled or the reservoir tank is empty, bleed the master cylinder. If bleeding of the master cylinder is not necessary, omit the following procedures, and perform bleeding of the brake line. < Ref. to BRAKE LINE , PROCEDURE, Air Bleeding . >
Scheme 83
Scheme 84
- Fill the reservoir tank of the master cylinder with brake fluid. NOTE: While bleeding air, keep the reservoir tank filled with brake fluid to prevent entry of air.
- Disconnect the brake line at primary and secondary sides.
- Wrap the master cylinder with a plastic bag.
- Depress the brake pedal slowly and hold it. NOTE: On the model with brake assist mechanism, the following phenomena occur when the brake pedal is depressed. However, those are not malfunction but the phenomena that occur when the brake assist mechanism functions properly. Brake feel is soft when brake pedal is depressed hard or quicker than usual. ABS operating sound is heard when brake pedal is depressed hard or quicker than usual.
- Plug the outlet plug with your finger, and then release the brake pedal.
- Repeat the step 4 and 5 several times.
- Remove the plastic bag.
- Install the brake pipe to the master cylinder. Tightening torque: 19 N.m (1.94 kgf-m, 14.0 ft-lb)
- Bleed air from the brake line. < Ref. to «BRAKE LINE»(ref-465400-S07448894792012042000000) , PROCEDURE, Air Bleeding . >
Scheme 85
Scheme 86
- When the master cylinder is disassembled or the reservoir tank is empty, bleed the master cylinder before bleeding the brake line. < Ref. to «MASTER CYLINDER»(ref-465400-S14205120742012042000000) , PROCEDURE, Air Bleeding . >
- Fill the reservoir tank of the master cylinder with brake fluid. NOTE: While bleeding air, keep the reservoir tank filled with brake fluid to prevent entry of air.
- Attach one end of the vinyl tube to the air bleeder and the other end to the brake fluid container.
- Depress the brake pedal several times, and hold it.
- Loosen the air bleeder screw to drain brake fluid. Tighten the air bleeder quickly, and release the brake pedal. NOTE: Perform air bleed starting in the order from the farthest wheel cylinder from the master cylinder.
- Repeat the steps 4 to 5 until there are no more air bubbles in the vinyl tube.
- Repeat the steps from 2 to 6 above to bleed air from each wheel.
- Securely tighten the air bleeder screws. Tightening torque: 8 N.m (0.82 kgf-m, 5.9 ft-lb)
- Check that there are no brake fluid leaks in the entire system.
- Check the pedal stroke. Run the engine at idle after warming up the engine, and depress the brake pedal with a force of 500 N (51 kgf, 112 lbf). Measure the distance between the brake pedal and steering wheel. Release the pedal, and measure the distance between pedal and steering wheel again. Specification of pedal stroke: When depressing the pedal with a force of 500 N (51 kgf, 112 lbf). 95 mm (3.74 in) or less
- If the distance is more than specification, there is a possibility of air being caught in the brake line. Bleed the brake line of all air until the pedal stroke meets the specification.
- Operate the hydraulic control unit in the sequence control mode. < Ref. to «ABS SEQUENCE CONTROL»(ref-465437-S01812074852012042000000) . >
- Check the pedal stroke again.
- If the distance is more than specification, there is a possibility of air being caught in the hydraulic unit. Repeat above steps 2 to 9 until the pedal stroke meets the specification.
- Fill the reservoir tank with brake fluid up to the "MAX" level.
- Test run the vehicle and ensure that the brakes operate normally.
Scheme 87
- Separate the brake pipe from brake hose using a flare nut wrench.
- Remove the clamp, the strut mount bolts, and union bolt.
Scheme 88
Scheme 89
- Remove union bolt and brake hose bracket bolt.
- Separate the brake pipe from brake hose using a flare nut wrench.
- Remove the clamp, and then remove the brake hose.
FRONT BRAKE HOSE
- Secure the brake hose to strut mount. Tightening torque: 33 N.m (3.36 kgf-m, 24.3 ft-lb)
- Install the brake hose to the caliper body using a new gasket. Tightening torque (union bolt): 18 N.m (1.84 kgf-m, 13.3 ft-lb)
- Position the disc in straight position and route the brake hose through the hole in the bracket on the wheel apron side. CAUTION: Do not twist the brake hose.
- Temporarily tighten the flare nut which connects brake pipe and hose.
- Secure the brake hose to wheel apron bracket with clamp.
- Tighten the flare nut to the specified torque. Tightening torque (brake pipe flare nut): 15 N.m (1.53 kgf-m, 11.1 ft-lb)
- Bleed air from the brake system. < Ref. to «PROCEDURE»(ref-465400-S28290080402012042000000) , Air Bleeding . >
Scheme 90
- Route the brake hose through the hole of bracket, and lightly tighten the flare nut to connect brake pipe.
- Insert the clamp to secure brake hose.
- Install the brake hose bracket. Tightening torque: 33 N.m (3.36 kgf-m, 24.3 ft-lb)
- Install the brake hose to the caliper body using a new gasket. Tightening torque (union bolt): 18 N.m (1.84 kgf-m, 13.3 ft-lb)
- Tighten the flare nut to the specified torque. Tightening torque (brake pipe flare nut): 15 N.m (1.53 kgf-m, 11.1 ft-lb)
- Bleed air from the brake system. < Ref. to «PROCEDURE»(ref-465400-S28290080402012042000000) , Air Bleeding . >