BRAKE FLUID BLEEDING

CAUTION / NOTICE / HINT

Note


  • Perform air bleeding with park (P) selected and the parking brake applied.

  • Add brake fluid to keep the level between the MIN and MAX lines of the reservoir while bleeding the brakes.

  • If brake fluid leaks onto any painted surface, immediately wash it off.

  • Do not operate the brake actuator assembly while air is in the brake system or in the brake master cylinder sub-assembly. Doing so may cause air to enter the brake actuator assembly.

  • When bleeding air, select the suitable procedure listed below.

    Replaced/Installed Item Work Procedure
    Flexible hose (front/rear) Bleed brake line
    Disc brake cylinder assembly (front/rear)
    Brake actuator assembly Bleed brake system
    Brake master cylinder sub-assembly
    Brake booster assembly

PROCEDURE


  1. BLEED BRAKE LINE


    1. for LHD:


      1. Remove upper radiator support seal.

        Click here

    2. for RHD:


      1. Remove radiator cover plate.

        Click here

    3. B006DSK

      Remove the brake master cylinder reservoir filler cap assembly.

    4. Add brake fluid to keep the level between the MIN and MAX lines of the reservoir while bleeding the brakes.

      Brake Fluid
      SAE J1703 or FMVSS No. 116 DOT3
      SAE J1704 or FMVSS No. 116 DOT4

      Note


      • Make sure that there is sufficient brake fluid in the reservoir.

      • Do not remove the filter from the brake master cylinder reservoir assembly and be sure to fill the brake master cylinder reservoir assembly with new brake fluid to avoid any potential contamination of the brake system. Contamination, for example by dirt particles or mineral oil, could lead to functional brake problems.

    5. Loosen the bleeder plug of the front disc brake cylinder assembly RH.

    6. Repeatedly depress the brake pedal and bleed the air from the bleeder plug of the front disc brake cylinder assembly RH.

      Note

      Add brake fluid to keep the level between the MIN and MAX lines of the reservoir while bleeding the brake lines.

    7. After all the air in the brake fluid is completely bled out, tighten the bleeder plug while depressing the brake pedal.

      Torque:
      10.8 N*m  { 110 kgf*cm, 96 in.*lbf }

    8. Bleed the air from the bleeder plug of the front disc brake cylinder assembly LH using the same procedure as for the RH side.

    9. Loosen the bleeder plug of the rear disc brake cylinder assembly RH.

    10. Repeatedly depress the brake pedal and bleed the air from the bleeder plug of the rear disc brake cylinder assembly RH.

      Note

      Add brake fluid to keep the level between the MIN and MAX lines of the reservoir while bleeding the brake lines.

    11. After all the air in the brake fluid is completely bled out, tighten the bleeder plug while depressing the brake pedal.

      Torque:
      10.8 N*m  { 110 kgf*cm, 96 in.*lbf }

    12. Bleed the air from the bleeder plug of the rear disc brake cylinder assembly LH using the same procedure as for the RH side.

    13. Inspect for brake fluid leaks.

    14. Inspect the brake fluid level in the reservoir.

      Click here

    15. Install the brake master cylinder reservoir filler cap assembly.

    16. for LHD:


      1. Install upper radiator support seal.

        Click here

    17. for RHD:


      1. Install radiator cover plate.

        Click here

  2. BLEED BRAKE SYSTEM

    CAUTION:

    If air is bled without using the GTS, damage or accidents may result. Therefore, always use the GTS when bleeding air.

    Note


    • To prevent brake fluid from damaging painted surfaces, cover any surrounding parts with a piece of cloth.

    • Be sure to clean your hands before bleeding the brake master cylinder sub-assembly to avoid any potential contamination of the brake system. Contamination, for example by dirt particles or mineral oil, could lead to functional brake problems.

    • In order to prevent the battery from becoming fully depleted, connect the battery charger to the battery when turning the engine switch on (IG) to charge the battery.

    • Keep the power supply connected to prevent the GTS battery from becoming fully depleted.


    1. for LHD:


      1. Remove upper radiator support seal.

        Click here

      2. Remove fender apron brace sub-assembly LH.

        Click here

    2. for RHD:


      1. Remove radiator cover plate.

        Click here

      2. Remove fender apron brace sub-assembly RH.

        Click here

    3. B006DSK

      Remove the brake master cylinder reservoir filler cap assembly.

    4. Add brake fluid to keep the level between the MIN and MAX lines of the reservoir while bleeding the brakes.

      Brake Fluid
      SAE J1703 or FMVSS No. 116 DOT3
      SAE J1704 or FMVSS No. 116 DOT4

      Note


      • Make sure that there is sufficient brake fluid in the reservoir.

      • Do not remove the filter from the brake master cylinder reservoir and be sure to fill the brake master cylinder reservoir with new brake fluid to avoid any potential contamination of the brake system. Contamination, for example by dirt particles or mineral oil, could lead to functional brake problems.

    5. B006DPR

      Using a union nut wrench, disconnect the 2 brake lines from the brake master cylinder sub-assembly.

      Note


      • Do not kink or damage the brake lines.

      • Do not allow any foreign matter such as dirt or dust to enter the brake lines from the connecting parts.

    6. B006G2H

      Slowly depress the brake pedal and hold it.*1

    7. B006C1E

      Cover the 2 outer holes with fingers, and release the brake pedal.*2

    8. Repeat steps *1 and *2, 3 or 4 times.

    9. B006AN4C02
      *a Torque Wrench Fulcrum Length
      *b Union Nut Wrench

      Using a union nut wrench, connect the 2 brake lines to the brake master cylinder sub-assembly.

      Torque:
      Specified tightening torque
      19.5 N*m  { 199 kgf*cm, 14 ft.*lbf }

      Note


      • Do not kink or damage the brake lines.

      • Do not allow the brake lines to twist or interfere with other parts or the vehicle body during tightening.

      • Do not allow any foreign matter such as dirt or dust to enter the brake lines from the connecting parts.

      Tech Tips


      • Calculate the torque wrench reading when changing the fulcrum length of the torque wrench.

        Click here

      • When using a union nut wrench (fulcrum length of 20 mm (0.787 in.)) + torque wrench (fulcrum length of 162 mm (6.378 in.)): 17.4 N*m (177 kgf*cm, 13 ft.*lbf)

    10. Loosen the bleeder plug of the front disc brake cylinder assembly RH.

    11. Repeatedly depress the brake pedal and bleed the air from the bleeder plug of the front disc brake cylinder assembly RH.

      Note

      Add brake fluid to keep the level between the MIN and MAX lines of the reservoir while bleeding the brake lines.

    12. After all the air in the brake fluid is completely bled out, tighten the bleeder plug while depressing the brake pedal.

      Torque:
      10.8 N*m  { 110 kgf*cm, 96 in.*lbf }

    13. Bleed the air from the bleeder plug of the front disc brake cylinder assembly LH using the same procedure as for the RH side.

    14. Loosen the bleeder plug of the rear disc brake cylinder assembly RH.

    15. Repeatedly depress the brake pedal and bleed the air from the bleeder plug of the rear disc brake cylinder assembly RH.

      Note

      Add brake fluid to keep the level between the MIN and MAX lines of the reservoir while bleeding the brake lines.

    16. After all the air in the brake fluid is completely bled out, tighten the bleeder plug while depressing the brake pedal.

      Torque:
      10.8 N*m  { 110 kgf*cm, 96 in.*lbf }

    17. Bleed the air from the bleeder plug of the rear disc brake cylinder assembly LH using the same procedure as for the RH side.

    18. Depress the brake pedal more than 20 times with the engine switch off.

    19. Connect a battery charger to the battery to ensure that a sufficient battery charge is maintained throughout the following steps.

    20. Connect the GTS to the DLC3.

    21. Turn the engine switch on (IG) and turn the GTS on.

      Note

      Do not start the engine.

    22. Enter the following menus: Body Electrical / Power Source Control / Utility / Auto Power OFF Cancel.


      Body Electrical > Power Source Control > Utility
      Tester Display
      Auto Power OFF Cancel

    23. Enter the following menus: Chassis / ABS/VSC/TRC / Utility / Air Bleeding.


      Chassis > ABS/VSC/TRC > Utility
      Tester Display
      Air Bleeding

    24. Bleed the brake system following the instructions on the GTS.

    25. After air bleeding, tighten each bleeder plug.

      Torque:
      10.8 N*m  { 110 kgf*cm, 96 in.*lbf }

    26. Turn the GTS off and turn the engine switch off.

    27. Disconnect the GTS from the DLC3.

    28. Inspect for brake fluid leaks.

    29. Inspect the brake fluid level in the reservoir.

      Click here

    30. Install the brake master cylinder reservoir filler cap assembly.

    31. for LHD:


      1. Install upper radiator support seal.

        Click here

      2. Install fender apron brace sub-assembly LH

        Click here

    32. for RHD:


      1. Install radiator cover plate.

        Click here

      2. Install fender apron brace sub-assembly RH

        Click here