04/09/2024 14:28:45

Hose - Inlet - Inverter - Rear Drive Unit (3DU) (Remove and Replace)

Correction code 18301702 0.66 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.

  • 2023-08-14: Added a note about vacuum refill requirement when the coolant loss is greater than 1L.

    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. Disconnect 12V/LV power. See 12V/LV Power (Disconnect and Connect).
    4. Remove the mid aero shield panel. See Panel - Aero Shield - Mid (Remove and Replace).
    5. Release the clips that attach the coolant hoses to LH and RH shear plates.
      Figure 1. LH
      Figure 2. RH
    6. Remove the HV battery skid plate. See Skid Plate - HV Battery - Rear (Remove and Replace).
    7. Position a coolant drain container underneath the LH rear of the HV battery.
    8. Remove the spring clip, disconnect the rear drive unit inverter inlet hose from the rear of HV battery, and then plug both fittings.
    9. Position the coolant drain container underneath the LH rear drive unit area.
    10. Remove the spring clip, disconnect the rear drive unit inverter inlet hose from the fluid coupling, and then plug the hose end and fluid coupling.
    11. Release the clip that attaches the rear drive unit inverter inlet hose to the rear drive unit.
    12. Remove the rear drive unit inverter inlet hose from subframe.
      Figure 3. Subframe removed from vehicle for demonstration purposes only

    Install

    1. Install the rear drive unit inverter inlet hose into the subframe.
      Figure 4. Subframe removed from vehicle for demonstration purposes only
    2. Remove the hose plugs, allow the coolant to drain from the hose, connect the rear drive unit inverter inlet hose to the rear drive unit, and then install the spring clip.
      Informational PurposesAn informational icon, calling your attention
      Note
      Perform a push-pull-push test to make sure the hose is fully seated.
    3. Install the clip that attaches the rear drive unit inverter inlet hose to the rear drive unit.
    4. Position the coolant drain container underneath the LH rear of the HV battery.
    5. Remove the hose plugs, connect the rear drive unit inverter inlet hose to the rear of the HV battery, and then install the spring clip.
      Informational PurposesAn informational icon, calling your attention
      Note
      Perform a push-pull-push test to make sure the hose is fully seated. Coolant loss greater than 1L requires vacuum fill.
    6. Remove the coolant drain container from underneath the vehicle.
    7. Install the HV battery skid plate. See Skid Plate - HV Battery - Rear (Remove and Replace).
    8. Install the clips that attach the coolant hoses to LH and RH shear plates.
      Figure 5. LH
      Figure 6. RH
    9. Install the mid aero shield panel. See Panel - Aero Shield - Mid (Remove and Replace).
    10. Lower the vehicle fully.
    11. Remove the coolant bottle cap.
    12. Inspect the coolant level and top off as necessary.
      Informational PurposesAn informational icon, calling your attention
      Note
      Ensure that the fluid level is at the Max line.
    13. Connect 12V/LV power. See 12V/LV Power (Disconnect and Connect).
    14. Connect a laptop with Toolbox 3 to the vehicle.
    15. In Toolbox, click the Actions/Autodiag tab, and then search for "Purge".
    16. Click TEST_VCFRONT_X_THERMAL-COOLANT-AIR-PURGEvia Toolbox: (link)via Service Mode:
      • Thermal ➜ Actions ➜ Coolant Purge Stop or Coolant Purge Start
      • Thermal ➜ Coolant System ➜ Coolant Purge Start
      via Service Mode Plus:
      • Drive Inverter ➜ Front Drive Inverter Replacement ➜ Coolant Air Purge
      • Drive Inverter ➜ Rear Drive Inverter Replacement ➜ Coolant Air Purge
      • Drive Inverter ➜ Rear Left Drive Inverter Replacement ➜ Coolant Air Purge
      • Drive Inverter ➜ Rear Right Drive Inverter Replacement ➜ Coolant Air Purge
      • Drive Unit ➜ Front Drive Unit Replacement ➜ Coolant Air Purge
      • Drive Unit ➜ Rear Drive Unit Replacement ➜ Coolant Air Purge
      , click Run, and allow routine to complete.
    17. Disconnect Toolbox and remove the laptop from the vehicle.
    18. Inspect the coolant level and top off as necessary.
      Informational PurposesAn informational icon, calling your attention
      Note
      Ensure that the fluid level is at the Max line.
    19. Install the coolant bottle cap.
    20. Close the hood.
    21. Raise the LH front window and close the LH front door.
    22. Remove the vehicle from the lift. See Raise Vehicle - 2 Post Lift.