13/10/2022 11:23:21

Drive Unit - Front (2nd Generation) (Remove and Install)

Correction Code 39013101

Special tools required for this procedure:

Supplier Part Number Description
Tesla 1090880-00-A or 1090880-01-A Steering Wheel Holder (Hunter or Beissbarth)
Tesla 1494178-00-A MS/MX Raven FDU Cradle
Tesla 1066521-00-A Powertrain Table
Tesla 1096075-00-A Hydraulic Hub Puller
Tesla 1498673-00-A Axle Remover Cable Kit
Tesla 1122937-00-A Cooling Hose Service Plug Kit
Tesla 1081765-01-B Transmission Jack
This procedure is for vehicles built after April 24, 2019. For vehicles built through April 24, 2019, see Drive Unit - Front (1st Generation) (Remove and Install).

Remove

  1. Raise and support the vehicle on a 2 post lift. See Raise Vehicle - 2 Post Lift .
  2. Point the steering wheel towards the center, and then install the steering wheel holder on the steering wheel and secure the steering wheel from turning.
  3. Remove the rear center underhood apron. See Underhood Apron - Center - Rear (Remove and Replace).
  4. Remove the LH and RH underhood aprons. See Underhood Apron - LH (Remove and Replace) .
  5. Recover the A/C refrigerant. See A/C Refrigerant Recovery and Recharge (Remove and Replace) .
    Informational PurposesAn informational icon, calling your attention
    Note
    Continue this procedure until the A/C refrigerant recovery is complete.
  6. Remove the underhood storage carpet. See Carpet - Underhood Storage (Remove and Install).
  7. Remove the underhood storage unit. See Underhood Storage Unit (Remove and Replace) .
  8. Remove the HEPA filter. See Filter - HEPA (Remove and Replace).
  9. Remove both wiper arms. See Wiper Arm - LH (Remove and Replace).
  10. Remove the cowl screen panel. See Panel - Cowl Screen (Remove and Replace).
  11. Remove the HEPA filter duct. See Duct - HEPA Filter (Remove and Replace) .
  12. Disconnect 12V power. See Disconnect 12V Power .
  13. Remove the front aero shield. See Panel - Aero Shield - Front (Remove and Replace) .
  14. Remove the mid aero shield. See Panel - Aero Shield - Mid (Remove and Replace).
  15. Remove the HV battery. See HV Battery (AWD) (Remove and Install) .
  16. Remove the 12V auxiliary battery cage. See Cage - Battery - Auxiliary - 12V (Remove and Replace) .
  17. Remove the wiper motor assembly. See Wiper Module (LHD) (Remove and Replace) .
  18. Remove the compressor. See Compressor (Remove and Replace).
  19. Remove the upper bolt that attaches the LH side isolator mount to the front drive unit (torque 38 Nm).
  20. Remove the edge clip that attaches the front drive unit electrical harness to the connector bracket.
  21. Disconnect the front drive unit electrical connector, and then set the harness aside.
  22. Disconnect the ground strap from the left side of the body (torque 9 Nm).
  23. Remove the LH and RH front wheel center caps from the vehicles using a suction cup clamp.
  24. Loosen the LH and RH front axle nuts, but do not remove them yet (torque 245 Nm).
  25. Remove the LH and RH front lug nut covers from the front wheels using the wheel nut cover removal tool.
  26. Loosen the LH and RH front lug nuts (torque 175 Nm).
  27. Remove the LH and RH front fender garnishes. See Garnish - Fender - Front - LH (Remove and Replace) .
  28. Remove the front fascia assembly. See Fascia Assembly - Front (Remove and Install) .
  29. Remove the center active louver. See Active Louver - Center (Remove and Replace) .
  30. Remove the cooling fan module. See Cooling Fan Module (Remove and Install) .
  31. Remove the bolts (x2) that attach the support beam to the body (torque 9 Nm).
  32. Position the thermal beam away from the front drive unit.
  33. Remove the bolt that attaches the RH front drive unit mount to the body (torque 120 Nm).
  34. Remove the bolt that attaches the front drive unit HV harness to the front drive unit (torque 10 Nm).
  35. Remove the 2nd generation front subframe assembly. SeeSubframe Assembly - Front - 2nd Generation (LHD) (Remove and Install).
  36. Install the hydraulic hub puller on the LH front brake rotor using 2 lug nuts and 2 hydraulic hub puller washers.
  37. Separate the halfshaft from the hub splines using the hydraulic hub puller, and then remove the puller from the hub.
  38. Remove the halfshaft from the hub.
  39. Install the axle removal tool around the inner joint of the halfshaft.
    Informational PurposesAn informational icon, calling your attention
    Note
    Use a cable tie to secure the axle removal tool in place.
    Figure 1. Close-up view of axle removal tool on halfshaft
  40. Remove the halfshaft from the front drive unit using the axle removal tool, and then remove the halfshaft from the vehicle.
  41. Repeat step 33 - 37 on the RH halfshaft.
  42. Disconnect the brake lines between the ABS modulator and the master cylinder (torque 23 Nm), and then move the brake lines aside.
  43. Remove the spring clip, and then disconnect the lower coolant hose from the front drive unit heat exchanger. Plug both the heat exchanger and the hose using plugs from the coolant hose plug kit.
  44. Remove the spring clip, and then disconnect the inverter outlet coolant hose. Plug the hose using a plug from the coolant hose plug kit.
  45. Slide the release to unlock the tab, and then rotate the release lever up to disengage the front drive unit HV harness connector.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    Dot not force the release lever up.
    Informational PurposesAn informational icon, calling your attention
    Note
    Make sure the alignment tabs on the front drive unit header are not damaged.
  46. Position the front drive unit stand and underhoist stand under the vehicle.
  47. Using the front drive unit stand and transmission jack, support the weight of the front drive unit.
    Informational PurposesAn informational icon, calling your attention
    Note
    Make sure that the front drive unit adapter engages the recesses in the front drive unit itself and it is also strapped to the motor stand adapter to prevent movement.
  48. Remove the bolts (x2) that attach the clevis mount to the body (torque 65 Nm).
  49. Remove the bolts (x2) that attach the clevis mount to the isolator mount (torque 92 Nm).
  50. Remove the bolts (x2) that attach the isolator mount to the front drive unit (torque 38 Nm), and then remove the isolator mount from the front drive unit.
  51. Remove the rear lower bolt that attaches the RH side of the front drive unit mount to the body (torque 120 Nm).
  52. Remove the front drive unit from the vehicle.
    Informational PurposesAn informational icon, calling your attention
    Note
    Make sure not to damage the ABS modulator and brake lines during the removal of the front drive unit.
    Informational PurposesAn informational icon, calling your attention
    Note
    Manipulate the front drive unit to clear the ABS modulator and the body side mount brackets.

Installation

Installation procedure is the reverse of removal, except for the following:
Informational PurposesAn informational icon, calling your attention
Note
When installing the halfshaft(s) into the drive unit:
  • Make sure that the opening of the snap ring is facing towards the bottom of the drive unit.
  • Do not damage or displace the oil seal.
  • Verify that the halfshaft is fully seated:
    • Carefully push the halfshaft into the drive unit until there is an audible "click" from the halfshaft stub contacting the pinion shaft.
    • There will be a slight pulling sensation on the halfshaft as the halfshaft circlip locks into place.
    • Pull on the inner halfshaft cup to confirm that the circlip is locked into place. If the halfshaft detaches from the drive unit then reinstall the halfshaft and then test that it is fully seated.
  1. After the installation of the front drive unit, perform the following:
    1. Partial refill and bleed of the cooling system. See Cooling System - Partial Refill and Bleed.
    2. A/C Refrigerant Recovery and Recharge. See A/C Refrigerant Recovery and Recharge (Remove and Replace) .
    3. Brake bleed procedure. See Bleed or Flush Procedure - System (Remove and Replace) .
    4. If a new front drive unit was installed, perform a software reinstall. See Firmware Reinstall - Touchscreen.