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Home >> Tesla >> 2019 >> Model S Long Range >> Repair and Diagnosis (Single Page) >> Hybrid/Electric Powertrain >> Electric Motor Systems >> Front Drive Unit -- Model S >> Front Drive Unit Assembly >> Mount - Front Drive Unit - RH (1st Generation) - Remove And Replace >> Installation

Mount - Front Drive Unit - RH (1st Generation) - Remove And Replace: Installation

  1. Use alcohol wipes to clean the mating surfaces between the RH drive unit mount and drive unit.
  2. Place a shear plate on the outboard side of the drive unit mount and align the bolt holes.
    NOTE: Install a shear plate even if the original drive unit mount did not have a shear plate.
    CAUTION: Make sure that the bottom holes on the shear plate are not slotted. If the bottom holes are slotted, replace the shear plate with one that is not slotted.
  3. Insert new patchbolts (x2) through the lower holes in the shear plate and drive unit mount.
    G14982405Courtesy of TESLA, INC.
  4. Set the new drive unit mount into position.
    CAUTION: Make sure that the patchbolts do not fall out from the drive unit mount while maneuvering the drive unit mount up to the front drive unit.
    CAUTION: Do not damage the RH axle during reinstallation.
    G14982406Courtesy of TESLA, INC.
  5. Loosely install the lower RH drive unit mount patchbolts (x2) into the drive unit.
    NOTE: The support jack might and/or drive unit might need to be adjusted when installing the lower patchbolts that secure the mount to the drive unit.
  6. Lower the vehicle.
  7. Alternate tightening the bolts on the support jack to raise the drive unit. Have an assistant monitor the installation from the RH wheelwell and underhood area to make sure the drive unit mount bolt holes align correctly with the bolt holes in the body.
  8. Working from the RH wheelwell, hand tighten the bolts (x2) that connect the drive unit mount to the body; do not fully torque the bolts at this time.

    Tip: Install the forward bolt first. Have an assistant help align the rear bolt hole with the hole in the body.

  9. Install and hand tighten the new upper patchbolts (x2) that secure the mount to the drive unit.
    G14982407Courtesy of TESLA, INC.
  10. Position the 3 shim tools between the RH drive unit mount and body to ensure proper clearance.
    NOTE: Leave the shim tools in place until prompted to remove them.
    G14982408Courtesy of TESLA, INC.
    1. 2-pronged shim tool. Working from the underhood area, position the 2-pronged shim around the RH drive unit mount front bushing.
      G14982409Courtesy of TESLA, INC.
    2. Hook shim tool. Reach beneath the drive unit and position the hook shim tool between the mount and outer bushing.
    3. Straight shim tool. Reach downward between the V-brace and cross brace and position the straight shim tool between the mount and inner bushing.
  11. Working from the RH wheelwell, fully torque the bolts that secure the mount to the body (torque 120 N.m).
    G14982410Courtesy of TESLA, INC.
  12. Raise the vehicle.
  13. Attach the 15 mm low profile socket to the torque + angle wrench.
  14. Set the torque + angle wrench to a torque value of 35 N.m.
  15. Tighten the bolts to the RH drive unit mount (torque 35 N.m) in the sequence shown:
    Fig 1: RH Drive Unit Mount Bolts Tightening Sequence
    G14982411Courtesy of TESLA, INC.
  16. Set the torque + angle wrench to 75 degrees of angle and tighten the bolts to the correct angle in the sequence shown:
    Fig 2: RH Drive Unit Mount Bolts Tightening Sequence
    G14982412Courtesy of TESLA, INC.
  17. Lower the vehicle.
  18. Remove the shim tools, then attempt to reinstall them:
    • If all 3 shim tools can be easily installed and removed, the drive unit is properly positioned.
    • If the shim tools can not be easily installed and removed, loosen all RH drive unit mount bolts and repeat step  10 through step  18.
  19. Lower the support jack and release the strap from the drive unit.
  20. Release the screws (x2) that secure the support jack to the cross car beam. Remove the support jack from the vehicle.
  21. Install the bolts (x4) that secure the front fuse boxes to the front shock tower crossmember (torque 5 N.m).
  22. Install the bolt that secures the coolant pump to the front cross car beam (torque 6.5 N.m).
  23. Install the RH bolt that secures the A/C compressor bracket to the front drive unit (torque 10 N.m).
    G14982413Courtesy of TESLA, INC.
  24. Reconnect the coolant level sensor harness.
    G14982414Courtesy of TESLA, INC.
  25. Install the bolts (x4) that secure the coolant reservoir to the cross car beam (torque 6 N.m).
    G14982415Courtesy of TESLA, INC.
  26. Install the fir tree clips (x2) that secure the 12V positive harness to the front cross car beam.
    G14982416Courtesy of TESLA, INC.
  27. Install the 12V battery and bracket beam 12V Battery Bracket Beam (Remove And Replace) .
    CAUTION: Do not connect the negative cable on the battery at this time.
  28. Raise the vehicle.
  29. Connect the battery coolant pump electrical connector.
  30. Install the bolts (x2) that secure the coolant pump bracket to the body of the vehicle (torque 7 N.m).
    G14982417Courtesy of TESLA, INC.
  31. Install the HV battery HV Battery (RWD/AWD) (Remove And Install) .
  32. Lower the vehicle partially.
  33. Install the edge clip that secures the coolant pump hose to the body of the vehicle.
  34. Reinstall the wheel arch liner.
  35. Reinstall the wheel.
  36. Lower the vehicle.
  37. Torque the lug nuts on the wheel (torque 175 N.m).
  38. Connect 12V power.
  39. Refill and bleed the cooling system Cooling System - Partial Refill And Bleed .
  40. Reinstall any remaining components that were removed for access.
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