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Home >> Tesla >> 2021 >> Model S Performance >> Repair and Diagnosis >> Body & Frame >> Frames, Subframes & Crossmembers >> Chassis And SUBFRAMES -- Model S >> Chassis and Subframes >> Subframe Assembly - Rear - Remove And Replace >> Remove

Subframe Assembly - Rear - Remove And Replace: Remove

  1. Move the vehicle to a 2 post lift. See Raise Vehicle - 2 Post Lift .
  2. Connect a laptop with Toolbox 3 to the vehicle. See Toolbox 3 (Connect and Disconnect) .
  3. Release the electronic parking brake. See Park Brake Caliper - Release - Toolbox .
  4. Disconnect the laptop with Toolbox 3 from the vehicle. See Toolbox 3 (Connect and Disconnect) .
  5. Remove the rear underhood apron. See Underhood Apron - Rear (Remove and Replace) .
  6. Disconnect LV power. See LV Power (Disconnect and Connect) .
  7. 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.
    G15102323Courtesy of TESLA, INC.
    G15102324Courtesy of TESLA, INC.
  8. Remove the rear wheels. See Wheel (Remove and Install) .
  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 HV insulating gloves.
    G15102325Courtesy of TESLA, INC.
  12. Remove the rear fascia diffuser. See Diffuser - Rear Fascia (Remove and Replace) .
  13. Remove the LH and RH rear wheel arch liners. See Wheel Arch Liner - Rear - LH (Remove and Replace) .
  14. Remove the rear subframe. See Subframe Assembly - Rear (Remove And Install) .
  15. Remove the bolts (x4) that attach the rear subframe brace to the rear subframe, and then remove the brace from the subframe.
    G15102326Courtesy of TESLA, INC.
  16. Release the clips (x2) and remove the bolt that attach the ground strap to the rear subframe, and then remove the ground strap from the subframe.
    G15102327Courtesy of TESLA, INC.
  17. Disconnect the rear subframe electrical harness from the LH ride height sensor connector.
    G15102328Courtesy of TESLA, INC.
  18. Release the clip that attaches the rear subframe electrical harness to the rear drive unit inverter, release the locking tab, and then disconnect the electrical harness from the rear drive unit inverter LV connector.
    G15102329Courtesy of TESLA, INC.
  19. Disconnect the rear subframe electrical harness from the RH ride height sensor connector.
    G15102330Courtesy of TESLA, INC.
  20. Release the clips (x2) that attaches the rear subframe electrical harness to the rear drive unit motor, release the locking tab, and then disconnect the electrical harness from the rear drive unit resolver connector.
    G15102331Courtesy of TESLA, INC.
  21. Release the gray tab, and then disconnect the rear subframe electrical harness from the rear drive unit oil pump connector.
    G15102332Courtesy of TESLA, INC.
  22. Release the clips (x12) that attach the rear subframe electrical harness to the rear subframe, and then remove the electrical harness from the subframe.
    G15102333Courtesy of TESLA, INC.
    G15102334Courtesy of TESLA, INC.
    G15102335Courtesy of TESLA, INC.
  23. Remove the bolt that attaches the LH ride height sensor arm to the LH upper fore link.
    G15102336Courtesy of TESLA, INC.
    G15102337Courtesy of TESLA, INC.
  24. Remove the bolt that attaches the LH ride height sensor to the rear subframe, and then remove the sensor from the subframe.
    G15102338Courtesy of TESLA, INC.
    G15102339Courtesy of TESLA, INC.
  25. Release the clips (x2) that attach the LH rear caliper electrical harness to the LH side of the rear subframe.
    G15102340Courtesy of TESLA, INC.
  26. Remove the bolts (x2) that attach the LH upper aft link to the rear subframe.
    G15102341Courtesy of TESLA, INC.
  27. Remove bolt that attaches the LH rear upper fore link to the LH rear knuckle.
    G15102342Courtesy of TESLA, INC.
  28. Remove the bolt that attaches the LH rear toe link to the rear LH knuckle.
    G15102343Courtesy of TESLA, INC.
  29. Install the axle removal tool around the inner joint of the LH rear halfshaft.
    NOTE: Make sure that the cable loop is not wrapped around the inner boot.
  30. Use the slide hammer to release the LH rear halfshaft from the rear drive unit.
    G15102344Courtesy of TESLA, INC.
  31. With the help of an assistant to support the weight of the LH rear knuckle in subsequent steps, remove the bolt that attaches the LH rear lower aft link to the knuckle.
    G15102345Courtesy of TESLA, INC.
    G15102346Courtesy of TESLA, INC.
  32. Remove the bolt that attaches the LH rear lower fore link to the LH rear knuckle.
    G15102347Courtesy of TESLA, INC.
  33. Remove the LH rear knuckle and LH rear half shaft from the rear subframe.
    NOTE: Carefully guide the halfshaft out of the subframe, and do not bend or damage the heatshield.
    G15102348Courtesy of TESLA, INC.
    G15102349Courtesy of TESLA, INC.
  34. Remove the bolts (x8) that attach the LH upper fore link, the LH toe link, the LH lower fore link, and the LH lower aft link to the rear subframe, and remove the links from the subframe.
    G15102350Courtesy of TESLA, INC.
  35. Repeat step  23 through step  34 on the RH side of the rear subframe.
  36. Release the clips (x2) that attach the powertrain coolant return hose to the rear subframe.
    G15102351Courtesy of TESLA, INC.
  37. Release the clips (x2) that attach the powertrain coolant supply hose to the rear subframe.
    G15102352Courtesy of TESLA, INC.
  38. Position the subframe lift underneath the gantry.
    G15102353Courtesy of TESLA, INC.
  39. Use the shackles (x3) to attach the drive unit sling tool to the rear drive unit.
    G15102354Courtesy of TESLA, INC.
  40. Attach the drive unit sling tool to the gantry.
    G15102355Courtesy of TESLA, INC.
  41. Use the gantry to raise the drive unit sling tool so that there is slight tension in the cables.
    G15102356Courtesy of TESLA, INC.
  42. Remove the bolt that attaches the rear drive unit to the LH side of the rear subframe.
    G15102357Courtesy of TESLA, INC.
  43. Remove the bolt that attaches the rear drive unit to the RH side of the rear subframe.
    G15102358Courtesy of TESLA, INC.
  44. Remove the bolt that attaches the rear drive unit to the rear of the rear subframe.
    G15102359Courtesy of TESLA, INC.
  45. Use the gantry to raise the drive unit sling tool and carefully lift the rear drive unit out of the rear subframe, routing the HV harness and coolant hoses as needed.
    G15102360Courtesy of TESLA, INC.
    G15102361Courtesy of TESLA, INC.
  46. Release the strap at the front and two straps at the rear of the subframe lift, and then with the help of an assistant, remove the rear subframe from the subframe lift.
    G15102362Courtesy of TESLA, INC.
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