12/09/2024 08:58:46

Four Wheel Alignment Check and Adjust (Air Suspension)

Correction Code 31002300

  • 2024-04-02: Added step to cycle TAS air suspension height.
  • 2023-05-18: Update the procedure to use Chassis Height Measurement Tool.
  • 2023-07-19: Added Service Mode instructions.
  • 2023-08-07: Reordered closing steps to match validation.
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Note
This procedure is not specific to a particular alignment machine. Follow the alignment equipment manufacturer's instructions for additional information and safety instructions.
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Note
This procedure is for vehicles equipped with air suspension. For vehicles equipped with coil suspension. see Four Wheel Alignment Check and Adjust (Coil Suspension).
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Note
This procedure assumes the vehicle suspension is operating as intended. If needed, a vehicle general inspection can be performed.
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Note
Make sure the vehicle profiles on the alignment machine match the alignment specifications in the Service Manual. If alignment specifications do not match, they may need to be manually entered; refer to the alignment machine's instructions for additional information.

Special tool(s) recommended for this procedure:

Supplier Part Number Description
Tesla 1071271-00-A Chassis Height Measurement Tool
Tesla 1080589-00-A Wheel Chocks
Tesla 1090881-00-A Brake Pedal Depressor
Tesla 1013230-00-A MS/X Cable HSD to Ethernet
Tesla 1090880-00-A Steering Wheel Holder
  1. At the alignment rack, verify that the turn and slip plates are locked.
  2. Latch the passenger seat belt to the driver buckle.
  3. Enable Service Mode +. See Service Mode Plus.
  4. Unlock the vehicle gateway for diagnostic communication. See Gateway Unlock.
  5. If the fasteners that secure the steering rack, steering column, intermediate shaft, tie rods, or front subframe have been loosened or removed, perform a Lock To Lock-Angle test. See Lock To Lock-Angle Test.
  6. Exit the vehicle, and then place wheel chocks at both sides of the LH rear wheel, and then manually latch the driver door.
  7. Raise the alignment rack to a comfortable working height.
  8. Install inflation hoses onto all four wheels so that tire pressures can be set automatically.
  9. Set the tire machine pressures to match those specified for the vehicle.
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    Note
    Refer to the "Tire and Loading Information" label located on the driver side B-pillar.
  10. Install the alignment heads to the center of the each wheel, and then adjust the side arms as necessary to grip tires securely.
  11. Verify chassis height measurement tool is zeroed at 51 mm, and adjust if necessary.
  12. Remove tire pressure hoses from valve stems, and reinstall the valve stem cap.
  13. Tesla Air Suspension Only - In Toolbox 3, click the Actions tab, type "Level to Height" into the search field, click , select Cycle, click Run, and allow the routine to complete.
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    Note
    Make sure the liftgate and all doors are closed when cycling the suspension height. If necessary, take the laptop out of the vehicle, running the cable through the open window.
  14. Tesla Air Suspension Only - Click the Action tab, type "Check ride height" into the search field, click PROC_TAS_X_CHECK-RIDE-HEIGHT-CALIBRATIONvia Toolbox: (link), click Run, and allow the routine to complete.
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    Note
    If the routine fails, perform Air Suspension Calibration. SeeCalibration - Tesla Air Suspension. If the calibration fails, find the root cause before continuing this procedure.
  15. Shift the vehicle to neutral.
  16. At the alignment machine, click/touch Begin Alignment and then enter the Service Visit information into the alignment machine.
  17. Verify that the turn plates are left right centered to the front tires, and reposition the plates as necessary.
  18. Remove the wheel chocks from the LH rear tire, move the vehicle forward by slowly rotating the tire counter-clockwise so that the front wheels center onto the turn plates, and then install the wheel chocks on either side of the tire.
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    Note
    The turn and slip plates should automatically unlock.
  19. Apply brake pedal depressor.
  20. Perform a steering wheel caster sweep, then center and level the steering wheel, and then install the steering wheel lock to keep the steering wheel in position.
  21. Raise the alignment rack higher so as to work under the vehicle.
  22. Remove the clips that attach the shear plate to the vehicle.
    Figure 1. RH shown, LH similar
  23. Remove the nut that attaches the RH shear plate to the vehicle.
    Figure 2. RH shown, LH similar
  24. Remove the screws that attach the RH shear plate to the vehicle.
    Figure 3. RH shown, LH similar
  25. Remove the bolt that attaches the RH shear plate to the vehicle.
    Figure 4. RH shown, LH similar
  26. Remove the mid aero shield panel. See Panel - Aero Shield - Mid (Remove and Replace).
  27. Perform the rear toe adjustment as necessary.
    80 Nm (59.0 lbs-ft)
  28. Perform the front camber adjustment as necessary.
    130 Nm (95.9 lbs-ft)
  29. Perform the front caster adjustment as necessary.
    130 Nm (95.9 lbs-ft)
  30. Lower 4-post lift and set onto locks.
  31. Perform a steering wheel caster sweep, then center and level the steering wheel, and then install the steering wheel lock to keep the steering wheel in position.
  32. Raise the alignment rack higher so as to work under the vehicle.
  33. Remove the steering wheel lock, perform a caster sweep of the steering wheel, re-center the steering wheel with the level, and then reinstall the steering wheel lock.
  34. Perform the front toe adjustment as necessary.
    70 Nm (51.6 lbs-ft)
  35. Print the vehicle alignment summary, including the before and after results.
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    Note
    Repeat the adjustment for any parameter that is not within specification.
  36. Install the mid aero shield panel. See .
  37. Position the RH shear plate on the vehicle, and then install the clips that attach the shear plate to the vehicle.
    Figure 5. RH shown, LH similar
  38. Install the new nut that attaches the RH shear plate to the vehicle (torque 35 Nm).
    Figure 6. RH shown, LH similar
  39. Install the screws that attach the RH shear plate to the vehicle (torque 6 Nm).
    Figure 7. RH shown, LH similar
  40. Install the bolt that attaches the RH shear plate to the vehicle (torque 4 Nm).
    Figure 8. RH shown, LH similar
  41. Remove the alignment heads from all four wheels.
  42. Clear the angle offsets using Toolbox 3 (substeps below) or Service Mode (next step):
    1. In Toolbox 3, click the Actions tab, type "Angle-Offsets" into the search field, click PROC_EPAS_ESP_CLEAR-ANGLE-OFFSETSvia Toolbox: (link)via Service Mode: Chassis ➜ Alignment & Tires ➜ Clear Applied Offset, click Run, and allow the routine to complete.
    2. Skip to step 44.
  43. Using Service Mode:
    1. On the vehicle touchscreen, touch Service Mode (spanner icon).
    2. Touch Chassis (damper icon) and then touch Alignment & Tires.
    3. Touch Clear Applied Offset, and then touch Run.
  44. Disconnect the laptop with Toolbox 3 from the vehicle. See Toolbox 3 (Connect and Disconnect).
  45. Remove the steering wheel lock, the brake pedal depressor, the steering wheel level, and then place the vehicle into Park.
  46. Use exterior door handle to release the driver door latch.
  47. Remove the wheel chocks.
  48. Remove the vehicle from the alignment rack.
  49. Exit Service Mode.
  50. Test drive the vehicle.
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    Note
    Add correction code 00040100 as a separate activity to the Service Visit.