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Home >> Tesla >> 2021 >> Model S Long Range Plus >> Repair and Diagnosis (Single Page) >> Body & Frame >> Frames, Subframes & Crossmembers >> Chassis And SUBFRAMES -- Model S >> Chassis and Subframes >> Subframe Assembly - Front - Remove And Install >> Remove

Subframe Assembly - Front - Remove And Install: Remove

  1. Move the vehicle to a 2 post lift. See Raise Vehicle - 2 Post Lift .
  2. Remove the rear underhood apron. See Underhood Apron - Rear (Remove and Replace) .
  3. Disconnect LV power. See LV Power (Disconnect and Connect) .
  4. Set the steering wheel straight ahead.
  5. Place a protector sheet onto the driver seat, and then install the steering wheel lock.
  6. Remove the LH and RH front wheels. See: WHEEL - REMOVE AND INSTALL .
  7. Remove the front aero shield panel. See Panel - Aero Shield - Front (Remove and Replace) .
  8. Remove the front fascia valance. See Valance - Front Fascia (Remove and Replace) .
  9. Remove the front skid plate. See Skidplate - Front (Remove And Replace) .
  10. Slide the red locking tab, press the release, and then disconnect the electrical connectors (x2) from the steering rack.
    G15102024Courtesy of TESLA, INC.
  11. Slide the red locking tabs, press the releases, and then disconnect the electrical connectors (x2) from the EPAS CAN.
    G15102025Courtesy of TESLA, INC.
  12. Release the clips (x3) that attach the electrical harness to the front subframe, separate the electrical harness from the subframe, and then tuck it up and aside.
    G15102026Courtesy of TESLA, INC.
  13. Remove the bolt that attaches the steering column intermediate shaft to the steering rack input shaft.

    Tip: Use of the following tool(s) is recommended:

    • 13 mm socket
    G15102027Courtesy of TESLA, INC.
  14. Slide the steering column intermediate shaft up and off of the steering rack input shaft.
    G15102028Courtesy of TESLA, INC.
  15. Remove the bolt that attaches the LH ANC sensor and damper bracket to the LH front active damper, remove the bracket from the damper, and hang the bracket from an S-Hook.

    Tip: Use of the following tool(s) is recommended:

    • 10 mm socket
    NOTE: Take note how the electrical harness is routed for installation later in this procedure.
    G15102029Courtesy of TESLA, INC.
  16. Remove and discard the nut that attaches the LH front stabilizer bar link to the front stabilizer bar, and then remove the link from the stabilizer bar.

    Tip: Use of the following tool(s) is recommended:

    • 15 mm socket
    • 5 mm hex
    NOTE: To prevent ball joint damage, use a 5mm hex wrench to prevent the LH link ball joint stud from turning while removing the nut.
    G15102030Courtesy of TESLA, INC.
  17. Remove the nut and bolt that attach the LH front active damper to the front lower aft link.

    Tip: Use of the following tool(s) is recommended:

    • 21 mm socket
    • 21 mm combination wrench
    G15102031Courtesy of TESLA, INC.
  18. Remove and discard the nut that attaches the LH aft link to the LH front knuckle, and then remove the aft link from the knuckle.

    Tip: Use of the following tool(s) is recommended:

    • 22 mm socket
    • Torx T45 socket
    NOTE: To prevent ball joint damage, use a T45 socket to prevent the LH aft link ball joint stud from turning while removing the nut.
    G15102032Courtesy of TESLA, INC.
  19. Remove and discard the nut that attaches the LH fore link to the LH front knuckle, and then remove the fore link from the knuckle.

    Tip: Use of the following tool(s) is recommended:

    • 22 mm socket
    • Torx T45 socket
    NOTE: To prevent ball joint damage, use a T45 socket to prevent the LH fore link ball joint stud from turning while removing the nut.
    G15102033Courtesy of TESLA, INC.
  20. Remove and discard the nyloc nut that attaches the LH tie rod to the LH front knuckle, and then remove the tie rod from the knuckle.

    Tip: Use of the following tool(s) is recommended:

    • 21 mm socket
    G15102034Courtesy of TESLA, INC.
  21. Repeat step  15 through step  20 for the RH side of the vehicle.
  22. Break loose the front, middle, and rear bolts (x6) of the front subframe, but do not remove the bolts at this time.
    NOTE: Note the characteristics of the bolt heads
    • Front bolts - 16 mm or 18 mm heads
    • Middle bolts (18 mm):
    • Rear bolts - 21 mm heads
    G15102036Courtesy of TESLA, INC.
    G15102037Courtesy of TESLA, INC.
  23. Remove the rear bolts (x2) from the front subframe with a battery-powered drill.
    CAUTION: Note the length of the bolts, either 58 mm or 67 mm. This length will determine the torque spec.
    Fig 1: Rear Subframe Bolts With Torque Specification
    G15102038Courtesy of TESLA, INC.
    G15102039Courtesy of TESLA, INC.
    G15102040Courtesy of TESLA, INC.
  24. Remove the bolts (x2) from the short spar of the subframe fixture (1066521-00-A, 1657054-00-A).
    NOTE: The bolts will interfere with the subframe if they are not removed. Return the bolts to the subframe fixture when finished with this procedure.
    G15102041Courtesy of TESLA, INC.
  25. Move the subframe lifting tool to underneath the front subframe area.
    G15102042Courtesy of TESLA, INC.
  26. Connect the shop supply air to the subframe lifting tool.
    G15102043Courtesy of TESLA, INC.
  27. With the help of an assistant, raise the powertrain table and subframe fixture into position.
    NOTE: The lower aft links will rest on the fixture.
    G15102044Courtesy of TESLA, INC.
    G15102045Courtesy of TESLA, INC.
  28. Remove the front and middle bolts (x4) from the front subframe with a battery-powered drill.
    NOTE: Take note of bolt head size for installation later.
    • Front bolts - 16 mm or 18 mm heads
    • Middle bolts - 18 mm heads
    Fig 2: Front and Middle Front Subframe Bolts With Torque Specification
    G15102046Courtesy of TESLA, INC.
    G15102047Courtesy of TESLA, INC.
    G15102048Courtesy of TESLA, INC.
  29. With the help of an assistant, carefully lower the front subframe from the body.
    NOTE: Hold the knuckles aside, and guide the active damper forks around suspension links.
    G15102049Courtesy of TESLA, INC.
  30. Disconnect the shop supply air from the subframe lifting tool.
    G15102050Courtesy of TESLA, INC.
  31. Move the subframe lifting tool and front subframe out from under the vehicle.
    G15102051Courtesy of TESLA, INC.
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