01/04/2024 13:58:56

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

Correction code 18301702 0.78NOTE: 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.
Warning IconA warning icon, calling your attention to a possibly risky situation
Warning
The video(s) included in this procedure are meant as an overview for supplemental purposes only. Follow all of the steps listed in the procedure to avoid damage to components and/or personal injury.
  • 2023-06-15: Added the whole procedure video as an overview for supplemental purposes only.

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 Coolant Air PurgeTEST_VCFRONT_X_THERMAL-COOLANT-AIR-PURGEGen3/tasks/TEST_VCFRONT_X_THERMAL-COOLANT-AIR-PURGE Model3/tasks/TEST_VCFRONT_X_THERMAL-COOLANT-AIR-PURGELow Voltage Controllers Low Voltage ControllersThermal / Actions - Coolant Air PurgeService Mode Service Plus Factory Mode Developer Thermal / Coolant System - Coolant Air PurgeService Mode Service Plus Factory Mode Developer hv / Procedures - Transport Service Plus Developer , 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.