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Home >> Toyota >> 2022 >> Avalon XLE >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Brake System (Hydraulic) (Service Information) >> BRAKE FLUID (for Gasoline Model) >> Bleeding [04/2018 -] >> Procedure

Bleeding [04/2018 -]: Procedure

  1. BLEED BRAKE LINE 
    1. Remove the brake master cylinder reservoir filler cap assembly.
      GTY903738Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. 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 DOT 3

      SAE J1704 or FMVSS No. 116 DOT 4

      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.
    3. Remove the bleeder plug cap.
    4. Connect a vinyl tube to the bleeder plug.
    5. Depress the brake pedal several times, and then loosen the bleeder plug with the pedal depressed.*1
    6. When fluid stops coming out, tighten the bleeder plug and release the brake pedal.*2
    7. Repeat steps *1 and *2 until all the air in the brake fluid is completely bled out and new brake fluid comes out.
    8. Tighten the bleeder plug completely.

      Torque: 8.3 N*m (85 kgf*cm, 73 in.*lbf) 

    9. Install the bleeder plug cap.
    10. Repeat the above steps to bleed the brake fluid of the brake lines for each wheel.
    11. Inspect for brake fluid leaks.
    12. Inspect the brake fluid level in the reservoir.

      See step  1

    13. Install the brake master cylinder reservoir filler cap assembly.
  2. BLEED BRAKE SYSTEM 
    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.
    1. Remove the brake master cylinder reservoir filler cap assembly.
      GTY903738Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. 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 DOT 3

      SAE J1704 or FMVSS No. 116 DOT 4

      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.
    3. Using a union nut wrench, disconnect the 2 brake lines from the brake master cylinder sub-assembly.
      GTY766398Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      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.
    4. Slowly depress the brake pedal and hold it.*1
      GTY766405Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Cover the 2 outer holes with fingers, and release the brake pedal.*2
      GTY766403Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Repeat steps *1 and *2, 3 or 4 times.
    7. Using a union nut wrench, connect the 2 brake lines to the brake master cylinder sub-assembly.

      Specified tightening torque 

      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.

      HINT: 

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

        Refer to PRECAUTION [04/2018 -]

      • When using a union nut wrench (fulcrum length of 20 mm (0.787 in.)) + torque wrench (fulcrum length of 162 mm (6.38 in.)):

        17.4 N*m (177 kgf*cm, 13 ft.*lbf)

      GTY745062Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Torque Wrench Fulcrum Length
      *b Union Nut Wrench
    8. Remove the bleeder plug cap.
    9. Connect a vinyl tube to the bleeder plug.
    10. Depress the brake pedal several times, and then loosen the bleeder plug with the pedal depressed.*1
    11. When fluid stops coming out, tighten the bleeder plug and release the brake pedal.*2
    12. Repeat steps *1 and *2 until all the air in the brake fluid is completely bled out and new brake fluid comes out.
    13. Tighten the bleeder plug completely.

      Torque: 8.3 N*m (85 kgf*cm, 73 in.*lbf) 

    14. Install the bleeder plug cap.
    15. Repeat the above steps to bleed the brake fluid of the brake lines for each wheel.
    16. Inspect for brake fluid leaks.
    17. Inspect the brake fluid level in the reservoir.

      See step  1

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