2025-07-18

Bracket Assembly - Hydraulic Control Unit (Remove and Install)

Correction code 3310007021 3310007022 FRT 2.28 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 ServiceManualFeedback@tesla.com. NOTE: See Personal Protection to make sure wearing proper PPE when performing the below procedure.

  • 2024-04-17: Added step to bleed brakes manually before bleeding brakes using Toolbox.
  • 2024-04-16: Cleaned up topic.
Warning IconA warning icon, calling your attention to a possibly risky situation
Warning
This procedure is a DRAFT. Although it has been validated, Warnings and Cautions might be missing. Follow safety requirements and use extreme caution when working on or near High Voltage systems and components. Provide corrections and feedback to ServiceDevelopment@teslamotors.com.

Remove

  1. Raise and support the vehicle. See Raise Vehicle - 2 Post Lift.
  2. Open the LH front door and lower the LH front window.
  3. Place the vehicle into Service Mode. See Service Mode.
  4. On the vehicle touchscreen, navigate to Service Mode > Thermal > Refrigerant System.
  5. Touch Start Thermal Fill Drain (Coolant and Refrigerant) and allow the routine to complete.
    Informational PurposesAn informational icon, calling your attention
    Note
    Make sure the routine is successful.
  6. Open the powered frunk.
  7. Remove all 4 wheels. See Wheel Assembly (Remove and Install).
  8. Remove the LH front wheel liner. See Wheel Liner - Front - LH (Remove and Replace).
  9. Remove the front skid plate. See Skid Plate (Remove and Install).
  10. Remove the front aeroshield. See Aeroshield - Front (Remove and Install).
  11. Release the clips (x2), and then disconnect the Cooling Fan Module (CFM) electrical connectors (x2).
  12. Place a coolant catch container below the RH front of he vehicle.
  13. Partially lower the vehicle.
  14. Remove the rear underhood apron. See Underhood Apron - Rear (Remove and Install).
  15. Remove the frunk assembly. See Frunk Assembly (Remove and Install).
  16. Remove the front center applique. See Front Center Applique Assembly (Remove and Install).
  17. Remove the front fascia. See Front Fascia (Remove and Install).
  18. Remove the Cooling Fan Module (CFM). See Module - Cooling Fan (Remove and Install).
  19. Remove the Hydraulic Control Unit (HCU). See Hydraulic Control Unit (Remove and Install).
  20. Release the electrical harness clips (x6), and then remove the nuts (x2) that attach the HCU bracket assembly to the vehicle.
    8 Nm (5.9 lbs-ft)
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • 10 mm deep socket

Install

  1. Install the nuts (x2) that attach the HCU bracket assembly to the body, and the fasten the electrical harness clips (x6).
    8 Nm (5.9 lbs-ft)
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • 10 mm deep socket
  2. Install the HCU. See Hydraulic Control Unit (Remove and Install).
  3. Install the CFM. See Module - Cooling Fan (Remove and Install).
  4. Install the front fascia. See Front Fascia (Remove and Install).
  5. Install the front center applique. See Front Center Applique Assembly (Remove and Install).
  6. Perform the cooling system vacuum fill. See Cooling System (Vacuum Refill).
  7. Bleed all 4 brakes manually. See Brake Fluid Bleed - One Caliper.
  8. Bleed all 4 brakes using Toolbox. See Brake Fluid Bleed - One Caliper.
  9. Install the front aeroshield. See Aeroshield - Front (Remove and Install).
  10. Install the front skid plate. See Skid Plate (Remove and Install).
  11. Install the LH front wheel liner. See Wheel Liner - Front - LH (Remove and Replace).
  12. Install all 4 wheels. See Wheel Assembly (Remove and Install).
  13. Install the frunk assembly. See Frunk Assembly (Remove and Install).
  14. Install the rear underhood apron. See Underhood Apron - Rear (Remove and Install).
  15. Close the powered frunk.
  16. Remove the vehicle from the lift. See Raise Vehicle - 2 Post Lift.
  17. Exit Service Mode. See Service Mode.
  18. Raise the LH front window and close the LH front door.