2025-04-03

Pipe - Brake - Master Cylinder To Hydraulic Control Unit- LHD (Remove and Replace)

Correction code 3303010302 FRT 1.80 NOTE: Unless otherwise explicitly stated in the procedure, the above correction code and FRT 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. To provide feedback on FRT values, email LaborTimeFeedback@tesla.com. NOTE: See Personal Protection to make sure wearing proper PPE when performing the below procedure.

  • 1139126-20-B - Air Operated Fluid Evacuator
  • 1090880-00-A - STEERING WHEEL HOLDER STD W/ HUNTER ALIGNMENT EQUIP
Warning IconA warning icon, calling your attention to a possibly risky situation
CAUTION
Brake fluid dissolves paint. Have clean towels and plenty of water standing by to wash spilled brake fluid off painted surfaces.
Informational PurposesAn informational icon, calling your attention
Note
Dispose of used brake fluid in a manner consistent with local environmental codes.

Torque Specifications

Table 1. Torque Specifications: Pipe - Brake - Master Cylinder To Hydraulic Control Unit- LHD (Remove and Replace)
Description Torque Value Recommended Tools Reuse/Replace Notes
Bolt that attaches the steering column to the steering gear assembly
18 Nm (13.3 lbs-ft)
  • 13 mm deep socket
  • Flex head ratchet/flex head torque wrench
 Replace 1111523-00-A
A/C compressor ground strap bolt
7 Nm (5.2 lbs-ft)
  • Flex head ratchet/flex head torque wrench
  • 10 in extension
  • Torx T25 socket
  • Cordless Ratchet/Impact Driver
 Reuse
Bolts (x2) that attach the compressor to the shock tower brace
31 Nm (22.9 lbs-ft)
  • Flex head ratchet/flex head torque wrench
  • 15 mm deep socket
  • Cordless Ratchet/Impact Driver
 Reuse
Nuts that attach the master cylinder primary/secondary pipe to the brake booster/HCU
16 Nm (11.8 lbs-ft)
  • 12 mm 6-point flare nut wrench
  • Ratchet/torque wrench
  • 12 mm 6-point flare nut crowfoot socket (mount at 90 degrees)
 Reuse

Remove

  1. Place the vehicle on the 2-post lift.
    Informational PurposesAn informational icon, calling your attention
    TIp
    Ensure the vehicle is not charging.
  2. Open the LH front door and lower the LH front window.
  3. Lock the steering wheel into center position.
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • 1090880-00-A - STEERING WHEEL HOLDER STD W/ HUNTER ALIGNMENT EQUIP
  4. Remove the underhood storage unit. See Underhood Storage Unit (Remove and Replace).
  5. Remove the LV battery. See LV Battery (Remove and Install).
  6. Remove all the four wheels. See Wheel Assembly (Remove and Install).
  7. Remove the front aero shield panel. See Panel - Aero Shield - Front (Remove and Replace).
  8. Remove and discard the bolt that attaches the steering column to the steering gear assembly.
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • 13 mm deep socket
    • Flex head ratchet/flex head torque wrench
  9. Slide the steering column upward to disconnect it from the steering gear assembly.
  10. Position a fluid catcher underneath the front of vehicle.
  11. Position protective fender cover over the fan shroud.
  12. Double-pull the red tab to disconnect the HVIL connector.
  13. Disconnect the A/C compressor logic connector.
  14. Remove the clip that attaches the harness to the HV harness bracket.
  15. Remove the A/C compressor ground strap bolt.
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • Flex head ratchet/flex head torque wrench
    • 10 in extension
    • Torx T25 socket
    • Cordless Ratchet/Impact Driver
  16. Remove the tree clip that attaches the radiator inlet hose to the A/C compressor bracket.
  17. Remove the retaining clips (x5) that attach the A/C compressor HV harness to the shock tower support brace.
    Informational PurposesAn informational icon, calling your attention
    Note
    Pull upward on the clips to assist with removal. Do not pull on the HV cable.
    Informational PurposesAn informational icon, calling your attention
    Note
    Discard the damaged clips.
  18. Remove the clips (x4) that attach the coolant hose to the A/C compressor bracket.
  19. With assistance supporting the compressor, remove the bolts (x2) that attach the compressor to the shock tower brace.
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • Flex head ratchet/flex head torque wrench
    • 15 mm deep socket
    • Cordless Ratchet/Impact Driver
  20. Move the compressor and bracket away from the shock tower brace and set them aside.
    Informational PurposesAn informational icon, calling your attention
    Note
    Carefully move the compressor and bracket towards the front of the vehicle.
  21. Disconnect the hydraulic control unit (HCU) connector.
    Informational PurposesAn informational icon, calling your attention
    Note
    Release the red locking tab and then press the black release tab and rotate the lever upward to disconnect.
  22. Release the HCU connector harness from the clip.
  23. Place absorbent material underneath the brake lines and the brake fluid reservoir to catch any fluid lost.
  24. Clean the area around the brake fluid reservoir and remove the brake reservoir cap.
  25. Remove the brake fluid from the reservoir.
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • 1139126-20-B - Air Operated Fluid Evacuator
  26. Remove the nuts (x2) that attach the master cylinder secondary and primary pipes to the brake booster.
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • 12 mm 6-point flare nut wrench
    • Ratchet/torque wrench
    • 12 mm 6-point flare nut crowfoot socket (mount at 90 degrees)
  27. Remove the nuts (x2) that attach the master cylinder secondary and primary pipes to the HCU.
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • 12 mm 6-point flare nut wrench
    • Ratchet/torque wrench
    • 12 mm 6-point flare nut crowfoot socket (mount at 90 degrees)
  28. Release the clip that attaches the master cylinder brake pipes to the rear of the HCU bracket.
    Informational PurposesAn informational icon, calling your attention
    Note
    Do not bend the pipes.
  29. Remove the master cylinder brake pipes from the clips (x2).
    Informational PurposesAn informational icon, calling your attention
    Note
    Do not bend the pipes.

Install

  1. Install the master cylinder brake pipes into the clips (x2).
    Informational PurposesAn informational icon, calling your attention
    Note
    Do not bend the pipes.
  2. Install the clip that attaches the master cylinder brake pipes to the rear of the HCU bracket.
  3. Install the nuts (x2) that attach the master cylinder primary and secondary pipes to the HCU.
    16 Nm (11.8 lbs-ft)
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • 12 mm 6-point flare nut wrench
    • Ratchet/torque wrench
    • 12 mm 6-point flare nut crowfoot socket (mount at 90 degrees)
  4. Install the nuts (x2) that attach the master cylinder primary and secondary pipes to the brake booster.
    16 Nm (11.8 lbs-ft)
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • 12 mm 6-point flare nut wrench
    • Ratchet/torque wrench
    • 12 mm 6-point flare nut crowfoot socket (mount at 90 degrees)
  5. Install the HCU connector harness into the clip.
  6. Rotate the lever downward and secure the red locking tab to connect the HCU connector.
  7. With assistance, place the compressor and bracket back to its original position, and then install the bolts (x2) that attach the compressor to the shock tower brace.
    31 Nm (22.9 lbs-ft)
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • Flex head ratchet/flex head torque wrench
    • 15 mm deep socket
    • Cordless Ratchet/Impact Driver
  8. Install the tree clips (x4) that attach the coolant hose to the A/C compressor bracket.
  9. Install the retaining clips (x5) that attach the A/C compressor HV harness to the shock tower brace.
    Informational PurposesAn informational icon, calling your attention
    Note
    Visually inspect the clips and replace the damaged ones.
  10. Install the tree clip that attaches the radiator inlet hose to the A/C compressor bracket.
  11. Install the A/C compressor ground strap bolt.
    7 Nm (5.2 lbs-ft)
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • Flex head ratchet/flex head torque wrench
    • 10 in extension
    • Torx T25 socket
    • Cordless Ratchet/Impact Driver
  12. Install the clip that attaches the harness to the HV harness bracket.
  13. Connect the A/C compressor logic connector.
  14. Connect the HVIL connector.
  15. Install the LV battery. See LV Battery (Remove and Install).
  16. Remove the protective fender cover over the fan shroud.
  17. Remove the fluid catcher from underneath the vehicle.
  18. Slide the steering column downward to connect it to the steering gear assembly.
    Informational PurposesAn informational icon, calling your attention
    Note
    Ensure the intermediate shaft is aligned and fully seated.
  19. Install a new bolt (1111523-00-A) that attaches the steering column to the steering gear assembly.
    18 Nm (13.3 lbs-ft)
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • 13 mm deep socket
    • Flex head ratchet/flex head torque wrench
  20. Locally connect a laptop with Toolbox 3 to the vehicle. See Toolbox 3 (Connect and Disconnect).
  21. Clean the area around the brake fluid reservoir breather cap and remove the cap.
  22. Add clean brake fluid to the full level in the bleeder reservoir.
  23. Add clean brake fluid to the MAX level in the reservoir.
  24. Install the pressure bleeder adapter onto the vehicle brake reservoir.
  25. Connect power supply to the bleeder tool, and then turn the bleeder tool on.
  26. Set the brake bleed reservoir pressure to 30 PSI, and then attach the brake bleed reservoir to the brake bleed adapter.
  27. Bleed the inner valve of the LH front caliper.
    1. Remove the LH front caliper inner bleed valve cover, and then install the fluid catcher.
    2. Open the inner bleed valve and watch the fluid as it flows out of the caliper.
    3. In Toolbox, click on the Actions/Autodiag tab, and then search for "Bleed FL".
    4. Click PROC_ESP_FRONT-L-REAR-R_BRAKE-BLEEDvia Toolbox: (link), click Run and allow the routine to complete.
    5. Close the bleed valve when the pump stops.
    6. Make sure that the reservoir does not go empty, or that the catch bottle does not overfill.
    7. Repeat step 27.b through step 27.f until clean fluid without bubbles flows out of the caliper.
    8. Remove the fluid catcher, and then torque the LH front caliper bleed valve and install the valve cap.
      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
  28. Bleed the inner valve of the RH front caliper.
    1. Remove the RH front caliper inner bleed valve cover, and then install the fluid catcher.
    2. Open the inner bleed valve and watch the fluid as it flows out of the caliper.
    3. In Toolbox, click on the Actions/Autodiag tab, and then search for "Bleed RH".
    4. Click PROC_ESP_FRONT-R-REAR-L_BRAKE-BLEEDvia Toolbox: (link), click Run and allow the routine to complete.
    5. Close the bleed valve when the pump stops.
    6. Make sure that the reservoir does not go empty, or that the catch bottle does not overfill.
    7. Repeat step 28.b through step 28.f until clean fluid without bubbles flows out of the caliper.
    8. Remove the fluid catcher, and then torque the RH front caliper bleed valve and install the valve cap.
      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
  29. Bleed the RH rear caliper.
    1. Remove the RH rear caliper bleed valve cover, and then install the fluid catcher.
    2. Open the bleed valve and watch the fluid as it flows out of the caliper.
    3. In Toolbox, click on the Actions/Autodiag tab, and then search for "Bleed".
    4. Click PROC_ESP_FRONT-L-REAR-R_BRAKE-BLEEDvia Toolbox: (link), click Run and allow the routine to complete.
    5. Close the bleed valve when the pump stops.
    6. Make sure that the reservoir does not go empty, or that the catch bottle does not overfill.
    7. Repeat step 29.b through step 29.f until clean fluid without bubbles flows out of the caliper.
    8. Remove the fluid catcher, and then torque the RH 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
  30. Bleed the LH rear caliper.
    1. Remove the LH rear caliper bleed valve cover, and then install the fluid catcher.
    2. Open the bleed valve and watch the fluid as it flows out of the caliper.
    3. In Toolbox, click on the Actions/Autodiag tab, and then search for "Bleed LR".
    4. Click PROC_ESP_FRONT-R-REAR-L_BRAKE-BLEEDvia Toolbox: (link), click Run and allow the routine to complete.
    5. Close the bleed valve when the pump stops.
    6. Make sure that the reservoir does not go empty, or that the catch bottle does not overfill.
    7. Repeat step 30.b through step 30.f until clean fluid without bubbles flows out of the caliper.
    8. 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
  31. Turn off and remove the pressure brake bleeder kit from the vehicle.
  32. Check the brake fluid level and top off as necessary.
  33. Install the service brake reservoir cap.
  34. Remove the absorbent material from underneath the brake booster assembly and the reservoir area.
  35. Perform the following routine using Service Mode or Toolbox (see 0005 - Service Modes):
    1. TEST-SELF_BRAKE_X_DPB-ESP-CORNER-STIFFNESS-TESTvia Toolbox: (link)via Service Mode Plus:
      • chassis ➜ DPB Post Replacement ➜ Corner Stiffness Test
      • chassis ➜ ESP Post Replacement ➜ Corner Stiffness Test
      Informational PurposesAn informational icon, calling your attention
      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 Advanced Bosch Brake Fluid Bleed/Flush (Maintenance) Procedure.

    2. TEST-SELF_DPB_LEAKAGE-AND-AIR-MONITORINGvia Toolbox: (link)
      Informational PurposesAn informational icon, calling your attention
      Note
      Informational PurposesAn informational icon, calling your attention
      Note
      To perform this routine via the touchscreen: Chassis > Procedures > DPB Post Replacement > Leakage and Air Monitoring Test
  36. Press the brake pedal several times to verify proper feel and action.
  37. Exit Service Mode or disconnect the laptop if applicable (see 0005 - Service Modes).
  38. Install the front aero shield panel. See Panel - Aero Shield - Front (Remove and Replace).
  39. Install all the four wheels. See Wheel Assembly (Remove and Install).
  40. Install the underhood storage unit. See Underhood Storage Unit (Remove and Replace).
  41. Remove the steering wheel holder.
  42. Raise the LH front window and close the LH front door.
  43. Remove the vehicle from the lift.
  44. Perform one of the following:
    • If the brake pads were not replaced in this procedure, perform a road test using a series of aggressive stops and make sure that there is proper brake pedal feel and brake performance.
      Informational PurposesAn informational icon, calling your attention
      Note
      Add test drive correction code 00040100 as a separate activity to the Service Visit.
    • If the brake pads were replaced in this procedure, perform the brake pad burnishing procedure. See Brake Pads - Burnishing.
      Informational PurposesAn informational icon, calling your attention
      Note
      Add the correction code for brake pad burnishing 33013000 as a separate activity to the Service Visit.