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HOMESERVICE MANUALSSUBARU2014OUTBACK 2.5I, STANDARD TRANSREPAIR AND DIAGNOSISBRAKESMECHANICAL - HYDRAULICBRAKE SYSTEMAIR BLEEDINGPROCEDUREMASTER CYLINDER
2014 Subaru Outback 2.5i, Standard Trans

Master Cylinder

2014 Subaru Outback 2.5i, Standard TransSECTION Master Cylinder
NOTE:
  • When the master cylinder is replaced 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. Refer to BRAKE LINE .
  1. 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.
  2. Disconnect the brake line at primary and secondary sides.
  3. Wrap the master cylinder with a plastic bag.
  4. Depress the brake pedal slowly and hold it.
    Fig 1: Depressing Brake Pedal
    G05032805Courtesy of SUBARU OF AMERICA, INC.
  5. Plug the outlet plug with your finger, and then release the brake pedal.
    Fig 2: Releasing Brake Pedal
    G05032806Courtesy of SUBARU OF AMERICA, INC.
  6. Repeat the step  4) and  5) several times.
  7. Remove the plastic bag.
  8. Install the brake pipe to the master cylinder.

    Tightening torque: 

    Brake pipe flare nut: 19 N.m (1.94 kgf-m, 14.0 ft-lb) 

  9. Bleed air from the brake line. Refer to BRAKE LINE .
RENDER: 1.0x

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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.