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Home >> Tesla >> 2021 >> Model Y Performance >> Repair and Diagnosis (Single Page) >> Body & Frame >> Frames, Subframes & Crossmembers >> Chassis And SUBFRAMES -- Model Y >> Chassis And Subframes >> Subframe Assembly - Front (Dual Motor) - Remove And Install >> Remove

Subframe Assembly - Front (Dual Motor) - Remove And Install: 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.
  3. In Toolbox 3, click the Actions/Autodiag  tab, and type 'Thermal' into the search field, click Start Thermal Fluid Fill/Drain (Coolant only)  , click Run  , and then allow the routine to complete.
  4. Disconnect the laptop with Toolbox 3 from the vehicle.
  5. Use a steering wheel lock to firmly set the steering wheel in the straight forward position.
    G14838981Courtesy of TESLA, INC.
  6. Disconnect LV power. See 12 V/LV Power (Disconnect and Connect) .
  7. Perform the vehicle electrical isolation procedure. See Vehicle Electrical Isolation Procedure .
  8. Remove the underhood storage unit. See Underhood Storage Unit (Remove and Replace) .
  9. Remove the bolt that attaches the intermediate shaft to the steering gear, and then slide the intermediate shaft upwards to remove it from the steering gear.
    G14838982Courtesy of TESLA, INC.
    G14838983Courtesy of TESLA, INC.
  10. Slide the red tab to unlock, press the connector release, and then disconnect the electrical harness from the steering gear power connectors (x2).
    G14838984Courtesy of TESLA, INC.
  11. Remove the front LH and RH fender garnishes. GARNISH - FENDER - FRONT - LH (REMOVE AND REPLACE) .
  12. Remove the front LH and RH wheels. See Wheel (Remove and Install) .
  13. Remove the front aero shield panel. See Panel - Aero Shield - Front (Non-Structural Pack) - Remove And Replace .
  14. Remove the front fascia. See FASCIA - FRONT (REMOVE AND INSTALL) .
  15. Remove the bolt that attaches the LH front wheel speed sensor to the LH front knuckle, and then remove the sensor from the knuckle.
    G14838985Courtesy of TESLA, INC.
  16. Release the clips (x2) that attach the LH front wheel speed sensor harness to the LH front knuckle, then move the sensor and harness aside.
    G14838986Courtesy of TESLA, INC.
  17. Remove the bolt that attaches the LH front brake caliper hose bracket to the LH front knuckle.
    G14838987Courtesy of TESLA, INC.
  18. Remove and discard the bolts (x2) that attach the LH front brake caliper to LH front knuckle, remove the caliper, and then use an S-hook to hang the caliper off to the side.
    G14838988Courtesy of TESLA, INC.
    G14838989Courtesy of TESLA, INC.
  19. Remove and discard the nut that attaches the front stabilizer bar LH link to the front LH strut, and then remove the link from the strut.
    NOTE: To prevent damage to the link, use a T40 tool to prevent the link ball joint shaft from turning.
    NOTE: Use a prybar on the stabilizer bar to unload the link and ease separation from the strut.
    G14838990Courtesy of TESLA, INC.
    G14838991Courtesy of TESLA, INC.
  20. With the help of an assistant, remove the bolt and discard the nut that attach the LH front knuckle to the LH front upper control arm, and then slide the control arm out of the knuckle.
    NOTE: Compress the control arm into the knuckle for easier bolt removal.
    G14838992Courtesy of TESLA, INC.
    G14838993Courtesy of TESLA, INC.
  21. Remove the bolt and nut that attach the LH front strut to the LH front lower lateral link.
    G14838994Courtesy of TESLA, INC.
  22. Repeat step  15 through step  21 on the RH side of the vehicle.
  23. Disconnect the electrical harness from the horn connectors (x2).
    G14838995Courtesy of TESLA, INC.
  24. Remove the bolts (x6) that attach the front skid plate to the HV battery, and then remove the plate from the battery.
    G14838996Courtesy of TESLA, INC.
  25. Release the clips (x3) that attach the RH front wheel arch liner to the RH rocker cover, and then move the liner aside.
    G14838997Courtesy of TESLA, INC.
  26. Move a coolant drain collector to underneath the RH front of the HV battery.
    G14838998Courtesy of TESLA, INC.
  27. Release the clip, disconnect the front drive unit inverter inlet hose from the powertrain return hose, and then immediately plug both fittings.
    G14838999Courtesy of TESLA, INC.
  28. Release the clip, disconnect the front drive unit heat exchanger to Supermanifold hose from the front drive unit heat exchanger, and then immediately plug both fittings.
    G14839000Courtesy of TESLA, INC.
  29. Move the coolant drain collector out from underneath the vehicle.
    G14839001Courtesy of TESLA, INC.
  30. Pull the red tab to unlock, then pull the red tab again to disconnect the electrical harness from the LV logic connectors (x2) below the steering gear.
    G14839002Courtesy of TESLA, INC.
    G14839003Courtesy of TESLA, INC.
  31. Release the clip that attaches the electrical harness to the front subframe.
    G14839004Courtesy of TESLA, INC.
    G14839005Courtesy of TESLA, INC.
  32. Release the clip that piggy-backs the electrical harness to the clip just released.
    G14839006Courtesy of TESLA, INC.
  33. Release the red locking tab on the opposite side of the LH front rail bracket, and then disconnect the electrical harness from the LH front rail bracket connector.
    G14839007Courtesy of TESLA, INC.
    G14839008Courtesy of TESLA, INC.
  34. Remove the bolt that attaches the front drive unit HV harness to the front drive unit.
    G14839009Courtesy of TESLA, INC.
  35. Slide the red locking tab, raise the black handle, disconnect the front drive unit HV harness from the front drive unit inverter HV header, separate the HV harness from the casting, and then set the HV harness aside.
    G14839010Courtesy of TESLA, INC.
    G14839011Courtesy of TESLA, INC.
    G14839012Courtesy of TESLA, INC.
  36. Remove the bolt that attaches the front drive unit ground strap to the front drive unit.
    G14839013Courtesy of TESLA, INC.
  37. Release the clip that attaches the front drive unit ground strap to the front drive unit.
    G14839014Courtesy of TESLA, INC.
  38. Loosen, but do not remove, the bolt that attaches the front drive unit ground strap to the HV battery, and then set the ground strap aside.
    G14839015Courtesy of TESLA, INC.
  39. Position the subframe lifting tool under, and up to the front subframe.
    G14839016Courtesy of TESLA, INC.
  40. With the help of an assistant, align the guide pins of the subframe lifting tool with the datums in the front subframe (x2) and front drive unit (x1).
    G14839017Courtesy of TESLA, INC.
    G14839018Courtesy of TESLA, INC.
    G14839019Courtesy of TESLA, INC.
  41. Fully secure the straps (x3) that attach the front subframe to the subframe lifting tool.
    G14839020Courtesy of TESLA, INC.
    G14839021Courtesy of TESLA, INC.
    G14839022Courtesy of TESLA, INC.
  42. Remove the bolts (x4) that attach the front end carrier to the LH and RH front subframe crash cans.
    G14839023Courtesy of TESLA, INC.
    G14839024Courtesy of TESLA, INC.
  43. Pull the red locking tab, and then disconnect the subframe electrical harness from the front drive unit motor resolver connector.
    G14839025Courtesy of TESLA, INC.
  44. Remove the bolt that attaches the RH motor mount to the RH motor mount bracket.
    G14839026Courtesy of TESLA, INC.
  45. Remove the bolt that attaches the LH motor mount to the LH motor mount bracket.
    G14839027Courtesy of TESLA, INC.
  46. Remove and discard the bolts (x2) that attach the front subframe LH and RH mid mounts to the body.
    G14839028Courtesy of TESLA, INC.
    G14839029Courtesy of TESLA, INC.
  47. Remove and discard the bolts (x2) that attach the front of the front subframe to the body.
    G14839030Courtesy of TESLA, INC.
    G14839031Courtesy of TESLA, INC.
  48. Remove and discard the smaller bolts (x2) that attach the rear of the front subframe to the body.
    G14839032Courtesy of TESLA, INC.
    G14839033Courtesy of TESLA, INC.
  49. Remove and discard the larger bolts (x2) that attach the rear of the front subframe to the body.
    G14839034Courtesy of TESLA, INC.
    G14839035Courtesy of TESLA, INC.
  50. With the help of an assistant, carefully lower the front subframe, and move the subframe lifting tool out from under the vehicle.
    NOTE: Watch for components that might get caught while lowering the subframe.
    G14839036Courtesy of TESLA, INC.
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