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Home >> Tesla >> 2017 >> Model 3 Base >> Repair and Diagnosis (Single Page) >> Body & Frame >> Frames, Subframes & Crossmembers >> Chassis And SUBFRAMES -- Model 3 >> 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.
    G14748602Courtesy of TESLA, INC.
  6. Disconnect LV power. See 12V/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.
    NOTE: Heat Pump Model 3.
    G14748603Courtesy of TESLA, INC.
    G14748604Courtesy of TESLA, INC.
    NOTE: Model 3.
    G14748605Courtesy of TESLA, INC.
    G14748606Courtesy of TESLA, INC.
  10. Model 3 -  Disconnect the electrical harness from the front subframe electrical harness.
    G14748607Courtesy of TESLA, INC.
  11. Slide the red tab to unlock, press the connector release, and then disconnect the electrical harness from the steering gear power connectors (x2).
    G14748608Courtesy of TESLA, INC.
  12. Model 3 -  Pull the grey tab to unlock, then pull the grey tab again to disconnect the electrical harness from the LV logic connectors (x2) at the steering gear.
    G14748609Courtesy of TESLA, INC.
  13. Remove the front LH and RH wheels. See WHEEL (REMOVE AND INSTALL) .
  14. Remove the front aero shield panel. See PANEL - AERO SHIELD - FRONT (REMOVE AND REPLACE) .
  15. Remove the front fascia. See FASCIA - FRONT (REMOVE AND INSTALL) .
  16. Remove the bolt that attaches the LH front wheel speed sensor to the LH front knuckle, and then remove the sensor from the knuckle.
    G14748610Courtesy of TESLA, INC.
  17. 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.
    G14748611Courtesy of TESLA, INC.
  18. Remove the bolt that attaches the LH front brake caliper hose bracket to the LH front knuckle.
    NOTE: Heat Pump Model 3.
    G14748612Courtesy of TESLA, INC.
    NOTE: Model 3.
    G14748613Courtesy of TESLA, INC.
  19. 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.
    NOTE: Heat Pump Model 3.
    G14748614Courtesy of TESLA, INC.
    G14748615Courtesy of TESLA, INC.
    NOTE: Model 3.
    G14748616Courtesy of TESLA, INC.
    G14748617Courtesy of TESLA, INC.
  20. 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.
    G14748618Courtesy of TESLA, INC.
    G14748619Courtesy of TESLA, INC.
  21. 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.
    G14748620Courtesy of TESLA, INC.
    G14748621Courtesy of TESLA, INC.
  22. Remove the bolt and nut that attach the LH front strut to the LH front lower lateral link.
    G14748622Courtesy of TESLA, INC.
  23. Repeat step  16 through step  22 on the RH side of the vehicle.
  24. Disconnect the electrical harness from the horn connectors (x2).
    NOTE: Heat Pump Model 3.
    G14748623Courtesy of TESLA, INC.
    NOTE: Model 3.
    G14748624Courtesy of TESLA, INC.
  25. Remove the bolts (x6) that attach the front skid plate to the HV battery, and then remove the plate from the battery.
    G14748625Courtesy of TESLA, INC.
  26. Release the clips (x3) that attach the RH front wheel arch liner to the RH rocker cover, and then move the liner aside.
    G14748626Courtesy of TESLA, INC.
  27. Move a coolant drain collector to underneath the RH front of the HV battery.
    G14748627Courtesy of TESLA, INC.
  28. Release the clip, disconnect the front drive unit inverter inlet hose from the powertrain return hose, and then immediately plug both fittings.
    NOTE: Heat Pump Model 3.
    G14748628Courtesy of TESLA, INC.
    NOTE: Model 3
    G14748629Courtesy of TESLA, INC.
  29. Model 3 -  Release the clip that attaches the front drive unit inverter inlet hose to the body.
    G14748630Courtesy of TESLA, INC.
  30. Release the clip, disconnect the front drive unit heat exchanger to Superbottle/Supermanifold hose from the front drive unit heat exchanger, and then immediately plug both fittings.
    NOTE: Heat Pump Model 3.
    G14748631Courtesy of TESLA, INC.
    NOTE: Model 3
    G14748632Courtesy of TESLA, INC.
  31. Move the coolant drain collector out from underneath the vehicle.
    G14748633Courtesy of TESLA, INC.
  32. Heat Pump Model 3 -  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.
    G14748634Courtesy of TESLA, INC.
    G14748635Courtesy of TESLA, INC.
  33. Heat Pump Model 3 -  Release the clip that attaches the electrical harness to the front subframe.
    G14748636Courtesy of TESLA, INC.
    G14748637Courtesy of TESLA, INC.
  34. Heat Pump Model 3 -  Release the clip that piggy-backs the electrical harness to the clip just released.
    G14748638Courtesy of TESLA, INC.
  35. Heat Pump Model 3 -  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.
    G14748639Courtesy of TESLA, INC.
    G14748640Courtesy of TESLA, INC.
  36. Remove the bolt that attaches the front drive unit HV harness to the front drive unit.
    G14748641Courtesy of TESLA, INC.
  37. 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.
    G14748642Courtesy of TESLA, INC.
    G14748643Courtesy of TESLA, INC.
    G14748644Courtesy of TESLA, INC.
  38. Remove the bolt that attaches the front drive unit ground strap to the front drive unit.
    G14748645Courtesy of TESLA, INC.
  39. Release the clip that attaches the front drive unit ground strap to the front drive unit.
    G14748646Courtesy of TESLA, INC.
  40. 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.
    G14748647Courtesy of TESLA, INC.
  41. Position the subframe lifting tool under, and up to the front subframe.
    G14748648Courtesy of TESLA, INC.
  42. 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).
    G14748649Courtesy of TESLA, INC.
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    G14748651Courtesy of TESLA, INC.
  43. Fully secure the straps (x3) that attach the front subframe to the subframe lifting tool.
    G14748652Courtesy of TESLA, INC.
    G14748653Courtesy of TESLA, INC.
    G14748654Courtesy of TESLA, INC.
  44. Remove the bolts (x4) that attach the front end carrier to the LH and RH front subframe crash cans.
    G14748655Courtesy of TESLA, INC.
    G14748656Courtesy of TESLA, INC.
  45. Pull the red locking tab, and then disconnect the subframe electrical harness from the front drive unit motor resolver connector.
    G14748657Courtesy of TESLA, INC.
  46. Remove the bolt that attaches the RH motor mount to the RH motor mount bracket.
    G14748658Courtesy of TESLA, INC.
  47. Remove the bolt that attaches the LH motor mount to the LH motor mount bracket.
    G14748659Courtesy of TESLA, INC.
  48. Remove and discard the bolts (x2) that attach the front subframe LH and RH mid mounts to the body.
    G14748660Courtesy of TESLA, INC.
    G14748661Courtesy of TESLA, INC.
  49. Remove and discard the bolts (x2) that attach the front of the front subframe to the body.
    G14748662Courtesy of TESLA, INC.
    G14748663Courtesy of TESLA, INC.
  50. Remove and discard the smaller bolts (x2) that attach the rear of the front subframe to the body.
    G14748664Courtesy of TESLA, INC.
    G14748665Courtesy of TESLA, INC.
  51. Remove and discard the larger bolts (x2) that attach the rear of the front subframe to the body.
    G14748666Courtesy of TESLA, INC.
    G14748667Courtesy of TESLA, INC.
  52. 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.
    G14748668Courtesy of TESLA, INC.
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