2025-04-23

Oil Pump - Electric - Rear Drive Unit (4DU) (Remove and Replace)

Correction code 4001010032 0.84 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.

Torque Specifications

Table 1. Torque Specifications:
Description Torque Value Recommended Tools Reuse/Replace Notes
The fill plug on the oil plug
15 Nm (11.1 lbs-ft)
  • 8 mm socket
  • Flex head ratchet/flex head torque wrench
 Reuse
The drain plug on the oil plug
15 Nm (11.1 lbs-ft)
  • 8 mm socket
  • Flex head ratchet/flex head torque wrench
 Reuse
bolts (x2) that attach the rear drive unit oil pump to the rear drive unit
5 Nm (3.7 lbs-ft) + 20 deg
  • EPL10 Socket
  • Torque wrench with angle measurement

Remove

  1. Move the vehicle to a 2 post lift. See Raise Vehicle - 2 Stands.
  2. Disconnect the LV battery power. See LV Power (Disconnect and Connect).
  3. Remove mid aero shield. See Middle Aero Shield (Remove and Replace)
  4. Pull the red tab, and then pull the red tab again to disconnect the rear subframe harness from the rear drive unit oil pump connector.
  5. Remove the fill plug from the oil pump.
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • 8 mm socket
    • Flex head ratchet/flex head torque wrench
  6. Position an oil drain collector under the rear drive unit oil pump.
  7. Remove the drain plug from the oil pump.
    Informational PurposesAn informational icon, calling your attention
    Note
    Inspect the O-ring for damage, and if the O-ring is damaged, replace the O-ring.
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • 8 mm socket
    • Flex head ratchet/flex head torque wrench
  8. Allow 10 minutes for the oil to drain naturally until it reaches the droplet stage.
  9. Install the drain plug from the oil pump.
    15 Nm (11.1 lbs-ft)
    Informational PurposesAn informational icon, calling your attention
    Note
    Inspect the O-ring for damage, and if the O-ring is damaged, replace the O-ring.
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • 8 mm socket
    • Flex head ratchet/flex head torque wrench
  10. Remove the bolts (x2) that attach the rear drive unit oil pump to the rear drive unit.
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • EPL10 Socket
    • Torque wrench with angle measurement
  11. Use a plastic pry tool to separate the rear drive unit oil pump from the rear drive unit, remove the oil pump, and allow the fluid to drain.

Install

  1. Apply a light coat of ATF-9 oil to the O-rings of the rear drive unit oil pump, and then wipe away any excess oil.
  2. Position the oil pump to the rear drive unit.
    Informational PurposesAn informational icon, calling your attention
    Note
    Inspect the O-rings for damage; if damaged, replace the O-rings.
  3. Install the bolts (x2) that attach the rear drive unit oil pump to the rear drive unit.
    5 Nm (3.7 lbs-ft) + 20 deg
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • EPL10 Socket
    • Torque wrench with angle measurement
  4. Fill a 3000mL measuring container with 2.5L/2500mL of KAF1 gearbox fluid.
    Informational PurposesAn informational icon, calling your attention
    Note
    The rear drive unit requires 2.3L/2300mL of fluid, however the excess fluid will prevent underfill and air entrapment.
  5. Connect the 12V power supply to the oil pump.
  6. Install the hoses onto the fluid transfer pump.
  7. Place the measuring container and the fluid transfer pump into the oil drain basket.
  8. Insert the output hose of the fluid transfer pump into the fill hole of the rear drive unit until fully seated, then pull back 5 mm.
  9. Fully submerge the input hose of the fluid transfer pump into the measuring container.
  10. Pump 2.3L/2300mL of KAF1 gearbox fluid into the rear drive unit.
    Informational PurposesAn informational icon, calling your attention
    Note
    Recommend an assistant to perform this step; the assistant will run oil pump switchbox using XP-10 Jump Pack and have the fill plug ready for installation.
    Informational PurposesAn informational icon, calling your attention
    Note
    Make sure the input hose end remains submerged, so that air is not pumped into the gearbox.
    Informational PurposesAn informational icon, calling your attention
    Note
    When properly filled, there should be 200mL or less of gearbox fluid left in the measuring containter.
  11. Remove the output hose from the rear drive unit.
  12. Install the fill plug from the oil pump.
    15 Nm (11.1 lbs-ft)
    Informational PurposesAn informational icon, calling your attention
    Note
    Inspect the O-ring for damage, and if the O-ring is damaged, replace the O-ring.
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • 8 mm socket
    • Flex head ratchet/flex head torque wrench
  13. Put on face shielding PPE.
  14. Spray the working area of the rear drive unit with brake cleaner, and then wipe off residual fluid with a clean shop towel.
  15. Disconnect the 12V power supply tool from the oil pump.
  16. Connect the oil pump connector.
  17. Remove the oil drain collector out from under the rear drive unit.
  18. Install mid aero shield. See Middle Aero Shield (Remove and Replace)
  19. Connect the LV battery power. See LV Power (Disconnect and Connect).
  20. Reinstall vehicle software. See Software Reinstall - Touchscreen.
  21. Locally connect a laptop with Toolbox 3 to the vehicle. See Toolbox 3 (Connect and Disconnect).
  22. On the laptop, select Actions tab, and search for "Oil Pump Low Pressure Test - Rear Drive Unit". Select TEST-SELF_DIR_X_OIL-PUMP-PRESSUREvia Toolbox: (link), click Run, and allow the routine to complete.
  23. Disconnect the laptop.
  24. Exit Service Mode. See Service Mode.
  25. Raise LH front window and close LH front door.
  26. Remove the vehicle from the 2 post lift. See Raise Vehicle - 2 Stands.