Tesla Model 3: Drive Unit - Front - Install

Install

 

1. Position the new front drive unit under the gantry, and then install the drive unit sling hooks on the new front drive unit.
2. Slightly raise the gantry hook until the drive unit sling is taut.

 

3. Remove the bolts that attach the front drive unit to the drive unit crate.
4. Lift the new front drive unit out of the drive unit crate, and then position the front subframe under the front drive unit.
5. Lower the front drive unit onto the front subframe. Note: Make sure not to move the rear front drive unit support posts from their previous positions.

 

6. Install the bolt that attaches the front drive unit to the front subframe. Torque 80 Nm
7. Lower the gantry hook until the drive unit sling is slack.

 

8. Remove the drive unit sling hooks from the front drive unit.
9. Move the subframe to a working area.

 

10. Position the old front drive unit under the gantry, and then install the drive unit sling hooks on the old front drive unit.
11. Lift the old front drive unit, and then position the empty drive unit crate under the old front drive unit.
12. Lower the old front drive unit into the empty drive unit crate.

 

13. Hand-tighten the bolts that attach the old front drive unit to the drive unit crate.

 

14. Slightly lower the gantry hook, and then remove the drive unit sling hooks from the old front drive unit.
15. Remove the drive unit sling from the gantry hook.
16. Install the inverter-heat exchanger hose that was removed from the old front drive unit. See Hose - Inverter to Heat Exchanger - Front Drive Unit (Remove and Replace).

 Caution: Perform a push-pull test to verify that the hose is fully seated.

 

17. If not preinstalled on the new front drive unit, install a new breather on the front drive unit. Torque 5 Nm

 

18. If not preinstalled on the new front drive unit, install a new 3-phase access label on the 3-phase lug cover.

 
Other assemblies hidden for clarity

19. Install the clip that attaches the front drive unit inverter inlet hose to the exterior of the front drive unit gearbox.

 

20. Install the clip that connects the front drive unit inverter inlet hose to the front drive unit inverter coolant inlet.

 Caution: Perform a push-pull test to verify that the hose is fully seated.

 

21. Install the clips that attach the front drive unit harness to the front drive unit inverter.

 

22. Install the clip that attaches the front drive unit harness to the front drive unit motor.

 

23. Connect the oil pump connector, and then engage the locking tab. Important: Perform a push-pull test to verify that the connector is fully attached.

 

24. Connect the resolver logic connector, and then engage the locking tab. Important: Perform a push-pull test to verify that the connector is fully attached.

 

25. Connect the front drive unit inverter logic connector, close the handle, and then engage the locking tab. Important: Perform a push-pull test to verify that the connector is fully attached.
26. Remove the halfshaft plugs from the gearbox, and then install the LH and RH front drive unit halfshafts in the front drive unit.
27. Install the steering rack. See Steering Rack (Dual Motor) (Remove and Replace).
28. Install the front subframe assembly on the vehicle. See Subframe Assembly - Front (Dual Motor) (Remove and Install).
29. Using Toolbox, perform a Service Firmware Redeploy. Select repair_network.ODIN_GTW_serviceFWRedeploy in the "Actions" tab.

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