26/07/2023 18:32:48

Fluid Coupling (55 Degrees) - Rear Drive Unit (Remove and Replace)

Correction code 40014002 0.48 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.

Table 1. Torque Specifications: Fluid Coupling (55 Degrees) - Rear Drive Unit (Remove and Replace)
Description Torque Value Recommended Tools Reuse/Replace Notes
Bolt that secures the 55 degrees fluid coupling
6 Nm (4.4 lbs-ft)
  • Adapter 1/4in Dr. to 1/4in Hex Bit Quick Change
  • Torx T25 socket
  • Cordless Ratchet/Impact Driver
  • Ratchet/torque wrench
Replace

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 the 12V battery power. See 12V/LV Power (Disconnect and Connect).
  4. Remove the mid aero shield. See Panel - Aero Shield - Mid (Remove and Replace).
  5. Position a coolant drain container underneath the LH of the rear drive unit area.
  6. Use a clip prytool to release the clip that attaches the rear drive unit inverter inlet tube to the rear drive unit HV cable harness.
  7. Disconnect the clip and the plugs (x2) that attach the rear drive unit inverter inlet tube to the fluid coupling, and plug the ends of fittings as soon as possible.
  8. Remove and discard the bolt that secures the 55 degrees fluid coupling.
    Use of the following tool(s) is recommended:
    • Adapter 1/4in Dr. to 1/4in Hex Bit Quick Change
    • Torx T25 socket
    • Cordless Ratchet/Impact Driver
    • Ratchet/torque wrench
  9. Remove the 55 degrees fluid coupling from the rear drive unit, and then plug the hole.

Install

  1. Remove the plug from the rear drive unit, and then install the 55 degrees fluid coupling.
    Tip: Be careful not to damage the rubber seal during installation. Lubricate the rubber seal with coolant if necessary.
  2. Install the new bolt that secures the 55 degrees fluid coupling.
    6 Nm (4.4 lbs-ft)
    Use of the following tool(s) is recommended:
    • Adapter 1/4in Dr. to 1/4in Hex Bit Quick Change
    • Torx T25 socket
    • Cordless Ratchet/Impact Driver
    • Ratchet/torque wrench
  3. Remove the plugs on the ends of fittings, and connect the clip and the plugs (x2) that attach the rear drive unit inverter inlet tube to the fluid coupling.
    Tip: Perform a push-pull-push test to make sure that the hose is fully secured.
  4. Secure the clip that attaches the rear drive unit inverter inlet tube to the rear drive unit HV cable harness.
  5. Remove the coolant drain container from underneath the vehicle.
  6. Install the mid aero shield. See Panel - Aero Shield - Mid (Remove and Replace).
  7. Connect the 12V battery power. See 12V/LV Power (Disconnect and Connect).
  8. Remove the coolant cap and inspect the coolant level, and top off as necessary.
    Tip: Ensure the filled coolant is G-48 coolant.
  9. Enable Service Mode. See Service Mode.
  10. On the touchscreen, tap the Service Mode "wrench" (at the bottom of the touchscreen UI), and then tap Thermal > Actions.
  11. Unlock the gateway. See Gateway (Unlock).
  12. On the touchscreen, tap Thermal > Coolant System > Coolant Purge > , > Run, and allow the routine to complete.
    Tip:
    • The routine will last for a while after the stop message displays. The coolant pumps are audible.
    • The test lasts for approximately 10 mins. Do not start another routine during this time.
    • Make sure that the vehicle is not in Drive. Putting the vehicle into Drive will stop this routine.
    • The speed in the test varies from 3500-6500 RPM (idle speed = ~1500 RPM) and the actuated valve varies between SERIES and PARALLEL.
    • The speed can be monitored in Garage under the PT Thermal tab. If the speed hovers at 7000 RPM, it indicates the pumps are air locked. Perform the vacuum fill again. Continue to add the coolant and purge until the coolant level reaches between the NOM and MAX Lines on the bottle.
  13. Inspect the coolant level again and top off as necessary, and then install the coolant bottle cap.
  14. Disable Service Mode. See Service Mode.
  15. Raise the LH front window and close the LH front door.
  16. Remove the vehicle from the lift.