Tesla Model 3: Gearbox Fluid - Rear Drive Unit (Drain and Refill)

Gearbox Fluid - Rear Drive Unit - Drain

Drain

SPECIAL TOOLS

KIT, DRIVE UNIT OIL FILL, MODEL 3 (1139126-00-A)

KIT, DU DIPSTICK, MODEL 3 (1446276-00-B)

SWITCHBOX, OIL PUMP, MODEL 3 (1131264-00-A)

 JUMP START, XP-10 (1129348-00-A )

Skt, Oil Filter, 63.5mm X 14   

1. Remove the mid aero shield panel. See Panel - Aero Shield - Mid (Remove and Replace).
2. Position an oil drain underneath the rear drive unit.

3. Disconnect the electrical harness from the oil pump connector.

4.  Use the oil filter socket to remove the oil filter from the rear drive unit.

Note: Allow the oil to drain.

5. Hand tighten the drive unit oil drain adapter to the oil filter mount point.

 Note: Do not use any tools to tighten the drain adapter.

6. Connect the fluid evacuator hose to the oil drain adapter.
7. Use the XP-10 jump pack and oil pump switchbox to connect a 12V power supply to the oil pump.
8.  Press and hold the power button to activate the oil pump, and then release the button when gearbox fluid is no longer pumped out.
9. Wait 60 seconds for the gearbox fluid to settle in the oil pump area.
10.  Press and hold the power button again to activate the pump, and then release the button when gearbox fluid is no longer pumped out.
11. Disconnect the XP-10 jump pack and oil pump switchbox from the oil pump.
12. Disconnect the fluid evacuator hose from the oil drain adapter.
13. Remove the oil adapter from the rear drive unit.
14. Apply a light coat of ATF-9 fluid to the gasket of a new rear drive unit oil filter, and then install the oil filter on the rear drive unit. Torque 3 Nm + 135 deg

Gearbox Fluid - Rear Drive Unit - Refill

Refill

1. Remove the fill plug.
2. Set the oil fill tool into the fill port and open the valve.
3.  Fill the rear drive unit with 2.75 liters of ATF-9 fluid.
4. Close the valve and remove the filler from the rear drive unit.
5. Install the single tube extractor to the fill port. Thread the nut into the rear drive unit fill port and align the hose fitting straight downwards.
6. Attach a Mitivac hose line to the extractor.
7. Verify that the valve is closed, and then attach a shop air supply line to the Mitivac.
8. Connect the XP-10 jump pack and oil pump switchbox to the oil pump.
9. Press and hold the power button to activate the oil pump, and then run the oil pump for 1 minute.
10. Wait 1 minute for the gearbox fluid to settle, and then set the Mitivac lever to the ON position to draw vacuum.
11. Once air is visible in the extraction hose, turn the Mitivac lever to the OFF position.
12. Remove the shop air supply hose from the Mitivac, and then remove the Mitivac hose line from the extractor.
13. Remove the single tube extractor from the fill port.
14. Install the dipstick special tool into the fill port.
15. Press and hold the power button to activate the oil pump. Run the oil pump for 1 minute.
16. Wait 1 minute for the gearbox fluid to settle.
17. Pull out the dipstick and verify that the gearbox fluid is between the two marks. Make fluid level adjustments, if necessary.
18. Install the fill plug into the rear drive unit. Torque 15 Nm
19. Remove the oil drain container from underneath the drive unit.
20.  Disconnect the XP-10 jump pack and oil pump switchbox from the oil pump.
21. Connect the electrical harness to the oil pump connector.
22. Install the mid aero shield panel. See Panel - Aero Shield - Mid (Remove and Replace).
23.  Lower the vehicle.