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Home >> Tesla >> 2024 >> Model 3 Performance >> Repair and Diagnosis (Single Page) >> Brakes >> Parking Brake System >> Brakes -- Model 3 >> Brake Pipes and Hoses >> Brake Lines - Pipe Assembly, Brake Master Cylinder To HCU, LHD - Remove And Replace >> Remove

Brake Lines - Pipe Assembly, Brake Master Cylinder To HCU, LHD - Remove And Replace: Remove

CAUTION: Brake fluid dissolves paint. Have clean towels and plenty of water standing by to wash spilled brake fluid off painted surfaces.
NOTE: Dispose of used brake fluid in a manner consistent with local environmental codes.
  1. Put the vehicle on the lift. See RAISE VEHICLE - 2 STANDS .
  2. Remove all the four wheels. See WHEEL ASSEMBLY - REMOVE AND INSTALL .
  3. Raise and support the vehicle. See RAISE VEHICLE - 2 STANDS .
  4. Remove the front aero shield. See FRONT UNDERTRAY - MODEL 3/Y, FRONT AERO SHIELD - REMOVE AND REPLACE .
  5. Lower the vehicle fully.
  6. Open the LH front door and lower the LH front window.
  7. Disconnect the LV battery power. See LV BATTERY - LI-ION - DISCONNECT AND CONNECT .
  8. Remove the underhood storage unit. See EXTERIOR FITTINGS - LUGGAGE COMPARTMENT TRIM - FRONT LUGGAGE STORAGE COMPARTMENT - FRUNK ASSEMBLY - REMOVE AND REPLACE .
  9. Remove the LV battery from the vehicle. See LV BATTERY - LI-ION BATTERY PACK - REMOVE AND REPLACE .
  10. Remove the shock tower brace. See BODY - BODY PANELS - FRONT INNER PANELS - SHOCK TOWER BRACE ASSEMBLY - REMOVE AND REPLACE .
  11. Disengage the locking tab, and then pull up the connector to release the hydraulic control unit connector.
    G16603255Courtesy of TESLA, INC.
  12. Place absorbent material underneath the brake booster and the reservoir area, clean the area around the brake fluid reservoir, and then remove the brake reservoir cap.
  13. Remove the fluid from the brake fluid reservoir by using a brake fluid syringe.
  14. Remove the nuts (x2) that attach the forward and the rear brake line to the brake booster.

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

    • 12 mm 12 pt combination wrench
    • 1/4 in to 3/8 in adapter
    • 12 mm socket
    • Ratchet/torque wrench
    G16603256Courtesy of TESLA, INC.
    G16603257Courtesy of TESLA, INC.
  15. Position the fluid catcher underneath the vehicle.
  16. Remove the master cylinder secondary pipe nut and primary pipe nut from the hydraulic control unit in turn.

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

    • 12 mm socket
    • 1/4 in to 3/8 in adapter
    • 6 in extension
    • Ratchet/torque wrench
    G16603258Courtesy of TESLA, INC.
    G16603259Courtesy of TESLA, INC.
  17. Release the primary and secondary pipes from the bundle clip.
    G16603260Courtesy of TESLA, INC.
  18. Release the master cylinder brake lines from the clip which is at the rear of the hydraulic control unit bracket, and then remove the master cylinder brake line bundle from the vehicle.
    G16603261Courtesy of TESLA, INC.
    G16603262Courtesy of TESLA, INC.
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