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Home >> Tesla >> 2019 >> Model X Long Range >> Repair and Diagnosis (Single Page) >> Drivelines & Axles >> Axle Shafts >> Front Drive Unit -- Model X >> Front Drive Unit Assembly >> Drive Unit - Front (1st Generation) - Remove And Install >> Removal

Drive Unit - Front (1st Generation) - Remove And Install: Removal

  1. Raise and support the vehicle on a 2 post lift.
  2. Recover the A/C refrigerant. See A/C REFRIGERANT RECOVERY AND RECHARGE (REMOVE AND REPLACE) .
    NOTE: Continue this procedure until the refrigerant recovery is complete.
  3. Remove the HEPA filter duct. See DUCT - HEPA FILTER (REMOVE AND REPLACE) .
  4. Remove the cowl screen panel. See PANEL - COWL SCREEN (REMOVE AND REPLACE) .
  5. Remove the center caps from the front wheels.
  6. Loosen the axle nuts.
    WARNING: Do not continue this procedure until the refrigerant recovery is complete.
  7. Remove the front wheels. See WHEEL (REMOVE AND INSTALL) .
  8. Remove the LH front wheel arch liner. See WHEEL ARCH LINER - FRONT - LH (REMOVE AND REPLACE) .
  9. Remove the HV Battery. See HV BATTERY (AWD) (REMOVE AND INSTALL) .
  10. Remove the 12V battery cage. See CAGE - BATTERY - AUXILIARY - 12V (REMOVE AND REPLACE) .
  11. Remove the bolts (x4) that attach the coolant reservoir to the front crossmember (torque 6 N.m). Do not remove the reservoir at this time.
  12. Carefully lift up the coolant reservoir and disconnect the coolant level sensor harness.
  13. Clamp the coolant hose at the rear of the coolant reservoir.
    G15207340Courtesy of TESLA, INC.
  14. Carefully move the reservoir to the LH side of the vehicle and plug the coolant hole.
    G15207341Courtesy of TESLA, INC.
  15. Disconnect the compressor HV harness from the forward junction box.
    G15207342Courtesy of TESLA, INC.
  16. Remove the screw that attaches the ground strap to the compressor bracket (torque 8 N.m).
    G15207343Courtesy of TESLA, INC.
  17. Disconnect the low voltage harness from the compressor.
    G15207344Courtesy of TESLA, INC.
  18. Remove the nuts (x2) that attach the A/C lines to the compressor (torque 5.5 N.m).
    G15207345Courtesy of TESLA, INC.
  19. With the help of an assistant, remove the bolts (x3) that attach the A/C compressor bracket to the front drive unit (torque 10 N.m).
    NOTE: Do not spill any oil from the compressor. If oil spills from the compressor, the system might experience a failure due to inadequate lubrication after reinstallation.
    G15207346Courtesy of TESLA, INC.
  20. Remove the compressor and bracket from the vehicle as an assembly.
    G15207347Courtesy of TESLA, INC.
  21. Clamp the front drive unit coolant hoses on the front and LH side of the front drive unit, and then remove the coolant hoses from the front drive unit.
    G15207348Courtesy of TESLA, INC.
  22. Disconnect the ground strap from the left side of the body (torque 9 N.m).
    G15207349Courtesy of TESLA, INC.
  23. Disconnect the low voltage harness from the front drive unit.
    G15207350Courtesy of TESLA, INC.
    NOTE: The connector has a 2-part locking system.
    G15207351Courtesy of TESLA, INC.

    To disconnect the connector:
    • Pull the large red tab towards the rear of the connector.
    • Push down on the small red tab.
  24. Lower the vehicle to access the wheelwell.
  25. Working from the LH wheelwell, remove powertrain coolant pump 2 from the bracket.
    G15207352Courtesy of TESLA, INC.
  26. Clamp the hoses that lead to powertrain coolant pump 2, and then disconnect the hoses.
  27. Move powertrain coolant pump 2 out of the way to gain access the LH side of the front drive unit.
  28. Remove the lower screws (x2) that attach the HV cables to the LH side of the front drive unit (torque 7 N.m).
    G15207353Courtesy of TESLA, INC.
  29. Remove the upper screws (x2) that attach the HV cables to the LH side of the front drive unit (torque 7 N.m), and then pull the HV cables away from the front drive unit.
    G15207354Courtesy of TESLA, INC.
  30. Remove the 1st generation front subframe assembly. See SUBFRAME ASSEMBLY - FRONT - 1ST GENERATION (REMOVE AND INSTALL) .
  31. Remove battery coolant pump 2 from the bracket on the chassis.
    NOTE: Battery coolant pump 2 is near the RH corner of the bulkhead.
    G15207355Courtesy of TESLA, INC.
  32. Clamp the coolant hose between battery coolant pump 2 and the chiller, and then remove the hose from the pump.
  33. Move the chiller and coolant pump to the RH side of the working area to provide clearance when removing the front drive unit.
  34. Remove the acoustic padding from the front drive unit.
  35. Drain the gearbox fluid from the front drive unit. See GEARBOX FLUID - FRONT DRIVE UNIT (1ST GENERATION) (DRAIN AND REFILL) .
  36. Remove the RH axle nut.
  37. Remove the RH halfshaft from the jackshaft.
    G15207356Courtesy of TESLA, INC.
  38. Remove the RH halfshaft from the hub. Remove the RH halfshaft from the vehicle.
  39. Remove the bolts (x2) that attach the jackshaft to the front drive unit (torque 30 N.m).
    G15207357Courtesy of TESLA, INC.
  40. Remove the LH axle nut.
  41. Remove the LH halfshaft from the front drive unit.
  42. Remove the LH halfshaft from the hub. Remove the halfshaft from the vehicle.
  43. Remove the lower RH section of the acoustic cover from the front drive unit.
  44. Install the front drive unit cradle onto the transmission jack.
    G15207358Courtesy of TESLA, INC.
  45. Position the transmission jack underneath the front drive unit.
  46. Raise the transmission jack to support the weight of the front drive unit. Ensure that the ridge on the base of the front drive unit fits into the channel on the transmission jack.
    G15207359Courtesy of TESLA, INC.
    CAUTION: Before continuing, make sure that the entire weight of the front drive unit is supported by the transmission jack.
  47. Remove the bolts (x2) that attach the LH front drive unit mount to the side rail (torque 65 N.m).
    NOTE: The LH front drive unit mount is removed with the front drive unit.
    G15207360Courtesy of TESLA, INC.
  48. Remove the bolts (x4) that attach the RH front drive unit mount and shear plate (if installed) to the front drive unit.
    WARNING: If a shear plate is installed, support the shear plate while removing the last two bolts. Once the last bolt is removed, the shear plate might rotate downward quickly and strike someone or a part of the vehicle. Once the last bolt is removed, there is nothing that supports the shear plate.
    NOTE: The RH front drive unit mount remains in the vehicle as the front drive unit is removed.
    G15207361Courtesy of TESLA, INC.
  49. Lower the front drive unit out of the vehicle.
    CAUTION: Make sure that components are not caught on the front drive unit as it is being removed.
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