Subaru Tribeca 2006

Brake Line Bleeding

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  1. When the master cylinder is disassembled or the reservoir tank is empty, bleed the master cylinder before bleeding the brake line.
  2.  
  3. 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.

  4.  
  5. Attach one end of the vinyl tube to the air bleeder and the other end to the brake fluid container.

    Click image to see an enlarged view

    Fig. Attach one end of the vinyl tube to the air bleeder and the other end to the brake fluid container

  6.  
  7. Depress the brake pedal several times, and keep it pressed.
  8.  
  9. Loosen the air bleeder screw to drain brake fluid. Tighten the air bleeder quickly, and release the brake pedal.
  10.  
  11. Repeat the steps 4) to 5) until there are no more air bubbles in the vinyl tube.
  12.  
  13. Repeat the steps from 2) to 6) above to bleed air from each wheel.
    NOTE
    Perform the operation in the order from closest wheel cylinder to the master cylinder.

  14.  
  15. Securely tighten the air bleeder screws. Tighten to 5.8 ft. lbs. (8 Nm)
  16.  
  17. Check that there are no brake fluid leaks in the entire system.
  18.  
  19. Check the pedal stroke.

    Run the engine at idle after warming up the engine, and depress the brake pedal with a force of 112 lbs. (500 N). Measure the distance between the brake pedal and (1) steering wheel. Release the pedal, and measure the distance between pedal and steering wheel again.
     
    When depressing the pedal with a force of 112 lbs. (500 N). Less than 4.53 inch (115 mm)

    Click image to see an enlarged view

    Fig. Check the pedal stroke

     

  20.  
  21. 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.
  22.  
  23. Operate the hydraulic control unit in the sequence control mode.
  24.  
  25. Check the pedal stroke again.
  26.  
  27. 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.
  28.  
  29. Fill brake fluid up to the -MAX- level of the reservoir tank.
  30.  
  31. Test run the vehicle and ensure that the brakes operate normally.
  32.  

 
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