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Home >> Tesla >> 2024 >> Model 3 Performance >> Repair and Diagnosis (Single Page) >> Brakes >> Mechanical - Hydraulic >> Brakes -- Model 3 >> Brake Discs and Calipers >> Brake Rotor - Front - LH - Measure Runout >> Procedure

Brake Rotor - Front - LH - Measure Runout: Procedure

  1. Open the LH front door and lower the LH front window.
  2. Apply the brake pedal depressor.
    NOTE: Verify the brake pedal is fully pressed to avoid wheels from spinning.
    G16603034Courtesy of TESLA, INC.
  3. Raise and support the vehicle. See RAISE VEHICLE - 2 STANDS .
  4. Remove the LH front wheel. See WHEEL ASSEMBLY - REMOVE AND INSTALL .
  5. Remove the bolt that attaches the LH front rotor to the knuckle.

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

    • Cordless 1/4 in Dr Ratchet
    • 2 in extension
    • 10 mm socket
    • Ratchet/torque wrench
    G16603035Courtesy of TESLA, INC.
  6. Install the brake rotor run out clamping plate onto the LH front rotor.

    100 N.m (73.7 lbs-ft) 

    NOTE: This simulates the wheel being installed, thus preventing inaccurate measurements.

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

    • Brake Rotor Run Out Kit - 1064697-00-B
    • Ratchet/torque wrench
    • 21 mm deep socket
    • Breaker bar
    G16603036Courtesy of TESLA, INC.
  7. Lower the vehicle to suitable height, and then remove the brake pedal depressor.
  8. Raise the vehicle partially and lower the lift onto locks.
    NOTE: Make sure that there is an audible click of locks on both sides before lowering, otherwise the vehicle may tilt to one side.
  9. Install the brake rotor run out flex bar onto the LH front tie rod nut and setup for reading.
    G16603037Courtesy of TESLA, INC.
  10. Measure 10 mm inward from the LH front rotor end and align digital indicator, and then press the indicator rod and zero measurement.
    NOTE: Make sure that the indicator rod is pressed to allow travel in both directions and does not bottom out.
    G16603038Courtesy of TESLA, INC.
    G16603039Courtesy of TESLA, INC.
  11. Mark the top center of the LH front rotor to identify the starting point.
    G16603040Courtesy of TESLA, INC.
  12. Slowly rotate the LH front rotor one full revolution.
    NOTE:
    • Record the highest positive and lowest negative values as shown on the digital indicator as you complete the rotation.
    • The total runout is the difference between the highest positive and lowest negative values and must not exceed 0.050 mm (for base brake rotors) or 0.150 mm (for performance brake rotors). If the total runout exceeds 0.050 mm (for base brake rotors) or 0.150 mm (for performance brake rotors), the brake rotor must be replaced due to excessive runout.
    G16603041Courtesy of TESLA, INC.
  13. Measure 25 mm inward from the LH front rotor end and align digital indicator, and press the indicator rod and zero measurement.
    NOTE: Make sure that the indicator rod is pressed to allow travel in both directions and does not bottom out.
    G16603042Courtesy of TESLA, INC.
  14. Slowly rotate the LH front rotor one full revolution.
    NOTE:
    • Record the highest positive and lowest negative values as shown on the digital indicator as you complete the rotation.
    • The total runout is the difference between the highest positive and lowest negative values and must not exceed 0.050 mm (for base brake rotors) or 0.150 mm (for performance brake rotors). If the total runout exceeds 0.050 mm (for base brake rotors) or 0.150 mm (for performance brake rotors), the brake rotor must be replaced due to excessive runout.
    G16603043Courtesy of TESLA, INC.
  15. Measure 40 mm inward from the LH front rotor end and align digital indicator, and press the indicator rod and zero measurement.
    NOTE: Make sure that the indicator rod is pressed to allow travel in both directions and does not bottom out.
    G16603044Courtesy of TESLA, INC.
  16. Slowly rotate the LH front rotor one full revolution.
    NOTE:
    • Record the highest positive and lowest negative values as shown on the digital indicator as you complete the rotation.
    • The total runout is the difference between the highest positive and lowest negative values and must not exceed 0.050 mm (for base brake rotors) or 0.150 mm (for performance brake rotors). If the total runout exceeds 0.050 mm (for base brake rotors) or 0.150 mm (for performance brake rotors), the brake rotor must be replaced due to excessive runout.
    G16603045Courtesy of TESLA, INC.
  17. Remove the brake rotor run out flex bar onto the LH front tie rod nut.
    G16603046Courtesy of TESLA, INC.
  18. Apply the brake pedal depressor.
    NOTE: Verify the brake pedal is fully pressed to avoid wheels from spinning.
  19. Raise the vehicle partially and lower the lift onto locks.
    NOTE: Make sure that there is an audible click of locks on both sides before lowering, otherwise the vehicle may tilt to one side.
  20. Remove the brake rotor run out clamping plate from the LH front rotor.

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

    • Brake Rotor Run Out Kit - 1064697-00-B
    • Ratchet/torque wrench
    • 21 mm deep socket
    • Breaker bar
    G16603047Courtesy of TESLA, INC.
  21. Install the bolt that attaches the LH front rotor to the knuckle.

    5 N.m (3.7 lbs-ft) 

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

    • Cordless 1/4 in Dr Ratchet
    • 2 in extension
    • 10 mm socket
    • Ratchet/torque wrench
    G16603048Courtesy of TESLA, INC.
  22. Install the LH front wheel. See WHEEL ASSEMBLY - REMOVE AND INSTALL .
  23. Remove the brake pedal depressor.
  24. Raise the LH front window and close the LH front door.
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