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Home >> Tesla >> 2023 >> Model X Base >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Electric Converters and Controllers >> Front Drive Unit -- Model X >> Front Drive Unit Assembly >> Drive Unit - Front - Remove And Install >> Install
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Drive Unit - Front - Remove And Install: Install

  1. Move the transmission jack fixture under the vehicle.
  2. With the help of an assistant, raise the transmission jack fixture, and maneuver harnesses and hoses around the front drive unit as it is raised into position.
    G15411389Courtesy of TESLA, INC.
  3. Install and hand tighten the bolts (x2) that attach the LH front drive unit mount to the LH casting.
    G15411390Courtesy of TESLA, INC.
  4. Raise the transmission jack fixture more to align the RH front drive unit mount with the RH casting.
    G15411391Courtesy of TESLA, INC.
  5. Install and hand tighten the bolts (x2) that attach the RH front drive unit mount to the RH casting.
    G15411392Courtesy of TESLA, INC.
  6. Tighten the bolt that attaches the rear of the RH front drive unit mount to the RH casting.

    120 N.m (88.5 ft-lbs) 

    G15411393Courtesy of TESLA, INC.
  7. Tighten the bolt that attaches the rear of the RH front drive unit mount to the RH casting.

    120 N.m (88.5 ft-lbs) 

    G15411394Courtesy of TESLA, INC.
  8. Tighten the bolts (x2) that attach the LH front drive unit mount to the LH casting.

    65 N.m (47.9 ft-lbs) 

    G15411395Courtesy of TESLA, INC.
  9. Release the strap and lower the transmission jack fixture from the front drive unit.
    G15411396Courtesy of TESLA, INC.
  10. Move the transmission jack fixture out from under the front drive unit.
    G15411397Courtesy of TESLA, INC.
  11. Pull the RH front wheel arch liner rearward, and then fasten the clips (x4) that attach the rear portion of the wheel arch liner to the body.
    G15411398Courtesy of TESLA, INC.
    G15411399Courtesy of TESLA, INC.
  12. Install the LH cross brace to the LH casting, and then install the bolts (x3) that attach the cross brace to the casting.

    30 N.m (22.1 ft-lbs) 

    G15411400Courtesy of TESLA, INC.
  13. Install the RH cross brace to the RH casting, install the bolts (x3) that attach the cross brack to the casting, and then fasten the clips (x2) that attach the electrical harness and HVAC drain tube to the cross brace.

    30 N.m (22.1 ft-lbs) 

    G15411401Courtesy of TESLA, INC.
  14. Move the coolant drain container to under the front drive unit.
    G15411402Courtesy of TESLA, INC.
  15. Remove the plugs from the fittings, immediately connect the powertrain coolant hose to the front drive unit inverter hose, and then fasten the clip that secures the fittings.
    G15411403Courtesy of TESLA, INC.
  16. Remove the plugs from the fittings, immediately connect the powertrain coolant return hose to the front drive unit heat exchanger, and then fasten the clip that secures the fittings.
    G15411404Courtesy of TESLA, INC.
  17. Move the coolant drain container out from underneath the vehicle.
    G15411405Courtesy of TESLA, INC.
  18. Install the LH and RH front halfshafts. See HALFSHAFT - FRONT DRIVE UNIT - LH (REMOVE AND REPLACE)  and HALFSHAFT - FRONT DRIVE UNIT - RH (REMOVE AND REPLACE) .
  19. Install the front subframe. See Subframe Assembly - Front (Remove and Install) .
  20. Install the front fascia valance. See Valance - Front Fascia (Remove And Replace) .
  21. Install the HV battery. See HV Battery (AWD) (Remove and Install) .
  22. Install the front skid plate. See Skidplate - Front (Remove and Replace) .
  23. Install the front aero shield panel. See Panel - Aero Shield - Front (Remove and Replace) .
  24. Install the LH and RH shear plates. See Shear Plate - Rear Subframe - LH (Remove and Replace) .
  25. Install the mid aero shield panel. See Panel - Aero Shield - Mid (Remove and Replace) .
  26. Install the LH and RH front wheels. See Wheel (Remove and Install) .
  27. Remove the steering wheel lock, and then remove the protector sheet from the driver seat.
    G15411406Courtesy of TESLA, INC.
  28. Use an alcohol wipe to clean the charge port busbar connector lead contact surfaces of residual Penetrox, and allow at least one minute to dry.
    G15411407Courtesy of TESLA, INC.
  29. Use an alcohol wipe to clean the DC input HV header terminal contact surfaces of residual Penetrox, and allow at least one minute to dry.
    G15411408Courtesy of TESLA, INC.
  30. Apply two small drops of Penetrox onto each DC input HV header terminal contact surface, and spread evenly.
    G15411409Courtesy of TESLA, INC.
  31. Install the charge port busbar connector onto the DC input HV header, and then install the bolts (x2) that attach the connector to the header.

    9 N.m (6.6 ft-lbs) 

    G15411410Courtesy of TESLA, INC.
  32. Put on the HV insulating gloves and leather over gloves.
    G15411411Courtesy of TESLA, INC.
  33. Use the Hioki resistance meter to measure the resistance between the charge port busbar connector lead and the DC input HV header bolt head.
    NOTE: The acceptable resistance is between 0.050 mΩ (50 μΩ) and 0.195 mΩ (195 μΩ). If the measured resistance is above 0.195 mΩ (195 μΩ), escalate to Service Engineering.
    NOTE: If the resistance is lower than 0.050 mΩ (50 μΩ), reposition the probes and measure again. If after 4 attempts the resistance is consistently lower than 0.050 mΩ (50 μΩ), the test has passed; continue to the next step.
    G15411412Courtesy of TESLA, INC.
  34. Repeat step  33 for the other charge port busbar connector lead and DC input HV header bolt head.
  35. Remove the HV insulating gloves and leather over gloves.
    G15411413Courtesy of TESLA, INC.
  36. Install the bolt that secures the charge port busbar connector access door.

    9 N.m (6.6 ft-lbs) 

    G15411414Courtesy of TESLA, INC.
  37. Tighten the LH and RH front axle nuts.

    245 N.m (180.7 ft-lbs) 

    G15411415Courtesy of TESLA, INC.
  38. Install the LH inner reinforcement to the body, and then install the bolts (x10) that attach the reinforcement to the body.

    27 N.m (19.9 ft-lbs) 

    NOTE: The bottom two bolts require improvising an 8 mm ratchet box-end wrench to turn the T40 socket.
    G15411416Courtesy of TESLA, INC.
    G15411417Courtesy of TESLA, INC.
  39. Install the 3rd row seat cushion, if previously removed. See Cushion - Seat - 3rd Row (Remove and Replace) .
  40. Fasten the clip that attaches the frunk harness to the front drive unit.
    G00645934Courtesy of TESLA, INC.
  41. Connect the frunk harness to the front drive unit harness connector, and then push in the red tab to secure.
    G00645935Courtesy of TESLA, INC.
  42. Install the bolt that attaches the ground strap to the front drive unit.

    5.5 N.m (4.1 lbs-ft) 

    NOTE: The bolt is captive to the ground strap.
    G00645933Courtesy of TESLA, INC.
  43. Install the wiper module. See Wiper Module (Remove and Replace) .
  44. Install the cowl screen panel. See Panel - Cowl Screen (Remove and Replace) .
  45. Perform a cooling system vacuum refill. See Cooling System (Vacuum Refill) .
  46. Connect LV power. See LV Power (Disconnect and Connect) .
  47. Connect a laptop with Toolbox 3 to the vehicle. See Toolbox 3 (Connect and Disconnect) .
  48. Perform a cooling system air purge. See Cooling System (Partial Refill and Bleed) .
  49. Disconnect the laptop with Toolbox 3 from the vehicle. See Toolbox 3 (Connect and Disconnect) .
  50. Install the underhood storage unit. See Underhood Storage Unit (Remove and Install) .
  51. Install the trunk side trim bracket. See:
  52. Install the trunk sill trim. See Trim - Sill - Trunk (Remove and Replace) .
  53. Install the LH upper C-pillar trim. See Trim - C-Pillar - Upper - LH (Remove and Replace) .
  54. Install the busbar duct to the body, and then install the bolts (x2) that attach the busbar duct to the body.

    2.5 N.m (1.8 ft-lbs) 

    G15411418Courtesy of TESLA, INC.
  55. Install the 2nd row rear floor panel. See:
  56. Install the LH and RH lower C-pillar trim. See Trim - C-Pillar - Lower - LH (Remove and Replace) .
  57. Install the LH and RH mid C-pillar trim. See Trim - C-Pillar - Mid - LH (Remove and Replace) .
  58. Install the 2nd row mid floor panel. See:
  59. Install the LH and RH sill panel trims. See Trim - Sill Panel - Rear - LH (Remove and Replace) .
  60. Install the rear underhood apron. See Underhood Apron - Rear (Remove and Replace) .
  61. Install the LH and RH rocker panel moldings. See Molding - Rocker Panel - LH (Remove And Replace) .
  62. Hold the LH and RH upper B-pillar buttons in the "Close" position to manually calibrate the LH and RH rear doors.
  63. Remove the vehicle from the 2 post lift. See Raise Vehicle - 2 Post Lift .
  64. Refer to the Alignment Requirement tables to determine whether an EPAS alignment check (EC) or four wheel alignment check (AC) is necessary. If performed, add the alignment check/adjust as a separate activity. See Alignment Requirement - Suspension .
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