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Home >> Tesla >> 2021 >> Model S Long Range Plus >> Repair and Diagnosis (Single Page) >> Hybrid/Electric Powertrain >> Electric Motor Systems >> Front Drive Unit -- Model S >> Front Inverter >> Fluid Coupling (Straight) - Front Drive Unit - Remove And Replace >> Remove

Fluid Coupling (Straight) - Front Drive Unit - Remove And Replace: Remove

  1. Move the vehicle to a 2 post lift. See Raise Vehicle - 2 Post Lift .
  2. Perform a cooling system thermal fill drain. See Thermal Fluid - Cooling System (Fill/Drain) .
  3. Remove the LH and RH rocker panel scuff plates. See Scuff Plate - Rocker Panel - LH (Remove and Replace) .
  4. Remove the LH and RH rocker panel moldings. See Molding - Rocker Panel - LH (Remove and Replace) .
  5. Position the 2 post lift pads for HV battery removal.
    G15106497Courtesy of TESLA, INC.
    G15106498Courtesy of TESLA, INC.
    G15106499Courtesy of TESLA, INC.
  6. Remove the rear underhood apron. See Underhood Apron - Rear (Remove and Replace) .
  7. Disconnect LV power. See LV Power (Disconnect and Connect) .
  8. Set the high voltage multimeter to DC voltage, lightly touch the probes to the auxiliary battery connector contacts, and verify that the multimeter displays a voltage.
    NOTE: Battery voltage is typically 14.5 to 15.5 volts.
    G15106500Courtesy of TESLA, INC.
    G15106501Courtesy of TESLA, INC.
  9. Remove the mid aero shield panel. See Panel - Aero Shield - Mid (Remove and Replace) .
  10. Perform the vehicle electrical isolation procedure. See Vehicle Electrical Isolation Procedure .
  11. Remove the leather glove protectors and the HV insulating gloves.
    G15106502Courtesy of TESLA, INC.
  12. Remove the LH and RH 2nd row seat side bolsters. See Bolster - Outer - Seat - 2nd Row - LH (Remove and Replace) .
  13. Remove the 2nd row lower seat cushion. See Seat Cushion - Lower - 2nd Row (Remove and Replace) .
  14. Remove the DC input HV header foam block.
    G15106503Courtesy of TESLA, INC.
  15. Remove the bolt that secures the charge port busbar connector access door.
    G15106504Courtesy of TESLA, INC.
  16. Remove the bolts (x2) that attach the charge port busbar connector to the DC input HV header.

    9 N.m (6.6 ft-lbs) 

    G15106505Courtesy of TESLA, INC.
  17. Lift the charge port busbar connector to remove the connector from the DC input HV header.
    G15106506Courtesy of TESLA, INC.
  18. Remove the LH and RH rear subframe shear plates. See Shear Plate - Rear Subframe - LH (Remove and Replace) .
  19. If the vehicle is equipped with a performance rear drive unit, slide the red connector locking tab, open the black release lever, and then disconnect the rear drive unit HV harness from the HV battery RH HV header.
    G15106507Courtesy of TESLA, INC.
  20. Remove the front aero shield panel. See Panel - Aero Shield - Front (Remove and Replace) .
  21. Remove the front skid plate. See Skidplate - Front (Remove and Replace) .
  22. Remove the HV battery. See HV Battery (AWD) (Remove and Install) .
  23. Remove the bolts (x3) that attach the LH cross brace to the LH casting, and then remove the cross brace from the vehicle.
    G15106508Courtesy of TESLA, INC.
  24. Move the coolant drain container to under the front drive unit.
    G15106509Courtesy of TESLA, INC.
  25. Release the clip, disconnect the front drive unit inverter inlet hose from the front drive unit inverter, and then immediately plug the fittings.
    G15106510Courtesy of TESLA, INC.
  26. Remove the bolt that attaches the front drive unit HV harness to the front drive unit, and then move the HV harness aside.
    G15106511Courtesy of TESLA, INC.
  27. Remove and discard the bolt that attaches the straight fluid coupling to the front drive unit inverter, and then remove the coupling from the inverter.
    G15106512Courtesy of TESLA, INC.
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