2026-06-03

Brake Fluid Bleed/Flush (Maintenance)

Correction code 33031202 FRT 0.96 NOTE: Unless otherwise explicitly stated in the procedure, the correction code and FRT listed above reflect all of the work required to perform this procedure, including the linked procedures. Do not stack correction codes unless explicitly told to do so. NOTE: See Flat Rate Times to learn more about FRTs and how they are created. NOTE: See Personal Protection to make sure you are wearing proper PPE when performing the procedure below. NOTE: See Ergonomic Precautions for safe and healthy working practices.

  • 2026-06-03: Moved step to confirm proper feel and action after turning off the pressure brake bleeder.
  • 2026-01-20: Updated part number for brake bleed adapter.
  • 2025-04-10: Added torque values for different brake calipers.
Equipment:
  • 1080579-00-A - Pneumatic Brake Bleeder
  • 1080578-00-C - Brake Bleed Adapter M3/Y (NA)
  • 1080578-01-A - Brake Bleed Adapter M3/Y (except NA)
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CAUTION
Brake fluid dissolves paint. Have clean towels and plenty of water standing by to wash spilled brake fluid off painted surfaces.
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Note
Dispose of used brake fluid in a manner consistent with local environmental codes.
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Note
Check the service history of the vehicle to determine which type of brake fluid the brake system is filled with.

Procedure

  1. Review the bleeder service tool profile.
  2. Place the vehicle on the 2-post lift.
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    TIp
    Ensure the vehicle is not charging.
  3. Remove the rear underhood apron. See Underhood Apron - Rear (Remove and Replace).
  4. Raise the vehicle and remove all four wheels. See Wheel Assembly (Remove and Install).
  5. Lower the vehicle to a working height.
  6. Locally connect a laptop with Toolbox to the vehicle. See Toolbox (Connect and Disconnect).
  7. Perform the following routine using Service Mode or Toolbox (see 0005 - Service Modes): PROC_DPB_X_ASSEMBLY-MODEvia Service Mode Plus:Chassis ➜ Brakes ➜ Enter/Exit Assembly Modevia Toolbox:(link)
  8. Clean the area around the brake fluid reservoir breather cap and remove the cap.
  9. Add clean brake fluid to the full level in the bleeder reservoir.
  10. Add clean brake fluid to the MAX level in the reservoir.
  11. Install the pressure bleeder adapter onto the vehicle brake reservoir.
  12. Connect power supply to the bleeder tool, and then turn the bleeder tool on.
  13. Set the brake bleed reservoir pressure to 30 PSI, and then attach the brake bleed reservoir to the brake bleed adapter.
  14. Bleed the LH front caliper.
    1. Remove the LH front caliper outer bleed valve cover, and then install the fluid catcher.
    2. Open the outer bleed valve and watch the fluid as it flows out of the caliper.
    3. Perform the following routine using Service Mode or Toolbox (see 0005 - Service Modes): PROC_DPB_BRAKE-FLUID-CHANGEvia Service Mode Plus:chassis ➜ DPB Post Replacement ➜ Bleed FR Calipervia Toolbox:(link)
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      Note
      DPB will pressurize the brake system with impulses.
    4. Close the bleed valve when the pump stops, or when clean fluid without bubbles flows out of the caliper.
    5. Make sure that the reservoir does not go empty, or that the catch bottle does not overfill.
    6. Repeat step 14.b through step 14.e until clean fluid without bubbles flows out of the caliper.
    7. Remove the fluid catcher, and then torque the LH front caliper outer bleed valve and install the outer valve cap.

      Mando brake calipers

      10 Nm (7.4 lbs-ft)

      Hitachi brake calipers

      12 Nm (8.8 lbs-ft)

      Brembo brake calipers

      18.5 Nm (13.6 lbs-ft)
      Informational PurposesAn informational icon, calling your attention
      TIp
      Use of the following tool(s) is recommended:
      • 11 mm socket
    8. Repeat step 14.a through step 14.g to bleed the LH front inner bleed valve.
  15. Repeat step 14 for the RH front caliper.
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    Note
    For the RH front caliper, select Bleed FR Caliper via the touchscreen or PROC_DPB_BRAKE-FLUID-CHANGEvia Service Mode Plus:chassis ➜ DPB Post Replacement ➜ Bleed FR Calipervia Toolbox:(link) via the toolbox when performing the routine.
  16. With assistance, manually bleed the LH rear caliper.
    1. Remove the LH rear caliper bleed valve cap and attach the catch bottle to the valve.
    2. Open the bleed valve (11mm) and watch the fluid as it flows out of the caliper.
    3. Have the assistant fully press the brake pedal for 2 seconds and then release.
    4. Press the brake pedal again. Repeat the bleed process until the LH rear caliper fluid is free of air bubbles and old fluids.
    5. Remove the fluid catcher, and then torque the LH rear caliper bleed valve and install the valve cap.
      10 Nm (7.4 lbs-ft)
      Informational PurposesAn informational icon, calling your attention
      TIp
      Use of the following tool(s) is recommended:
      • 11 mm socket
  17. Repeat step 16 for the RH rear caliper.
  18. Turn off and remove the pressure brake bleeder kit from the vehicle.
  19. Press the brake pedal several times to verify proper feel and action.
  20. Check the brake fluid level and top off as necessary.
  21. Install the service brake reservoir cap.
  22. Perform the following routine using Service Mode or Toolbox (see 0005 - Service Modes): TEST-SELF_DPB_TMC-BRAKE-PEDAL-PRESSvia Service Mode Plus:chassis ➜ DPB Post Replacement ➜ Master Cylinder Stiffness Testvia Toolbox:(link)
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    Note
  23. Perform the following routine using Service Mode or Toolbox (see 0005 - Service Modes): TEST-SELF_BRAKE_X_DPB-ESP-CORNER-STIFFNESS-TESTvia Service Mode Plus:
    • chassis ➜ DPB Post Replacement ➜ Corner Stiffness Test
    • chassis ➜ ESP Post Replacement ➜ Corner Stiffness Test
    via Toolbox:(link)
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    Note

    If the test fails due to leakage, identify and address the root cause of the leak.

    If the test fails due to stiffness, perform a brake fluid bleed procedure on the failed caliper.

    If the test still fails after completing the brake fluid bleed procedure on the failed caliper, proceed with the Brake Fluid Bleed/Flush (DPB) (Maintenance) Procedure.

  24. Exit Service Mode or disconnect the laptop if applicable (see 0005 - Service Modes).
  25. Install all four wheels and lower the vehicle. See Wheel Assembly (Remove and Install).
  26. Install the rear underhood apron. See Underhood Apron - Rear (Remove and Replace).
  27. Raise the LH front window and close the LH front door.
  28. Remove the vehicle from the lift.
  29. Perform a road test to make sure there is proper pedal feel and brake performance.
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    Note
    Add test drive correction code 00040100 as a separate activity to the Service Visit.