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Home >> Tesla >> 2023 >> Model Y Performance >> Repair and Diagnosis (Single Page) >> Hybrid/Electric Powertrain >> Electric Motor Systems >> Front Drive Unit -- Model Y >> Front Drive Unit Assembly >> Fluid Coupling (90 Degrees) - Front Drive Unit - Remove And Replace >> Install

Fluid Coupling (90 Degrees) - Front Drive Unit - Remove And Replace: Install

  1. Lubricate the 90 degree fluid coupling O-ring with coolant.
    CAUTION: Do not install the fluid coupling with the O-ring dry.
  2. Install a new front drive unit 90 degree fluid coupling into the drive inverter.
    G00662928Courtesy of TESLA, INC.
  3. Install the screw that attaches the front drive unit 90 degree fluid coupling to the drive inverter.

    6 Nm (4.4 lbs-ft) 

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

    • T25 socket
    G00662929Courtesy of TESLA, INC.
  4. Install the coolant pressure test plug adapter to straight fluid coupling.
    NOTE: Make sure the locking clip is fully seated.
    G00662930Courtesy of TESLA, INC.
  5. Install the coolant pressure adapter to the 55 degree fluid coupling.
    NOTE: Make sure the locking clip is fully seated
    G00662931Courtesy of TESLA, INC.
  6. Attach the coolant pressure tester to the pressure fitting adapter.
    G00662932Courtesy of TESLA, INC.
  7. Close both valves P1 (inlet) and P2 (outlet) on the test fixture, and connect a compressed air supply line.
    G00662933Courtesy of TESLA, INC.
  8. Set the pressure regulator of the test fixture to 50 psi.
    G00662934Courtesy of TESLA, INC.
  9. Slowly open the P2 valve on the pressure regulator. and allow the pressure to reach specification.
    G00662935Courtesy of TESLA, INC.
  10. Close the valve, wait 16 seconds for the pressure to settle, and then record the reading.
    G00662936Courtesy of TESLA, INC.
  11. Wait another 12 seconds, and then record the reading. The maximum delta is 0.10 psi.
    NOTE: If the pressure test fails, check the coolant hose to see if it is fully seated.
  12. Disconnect the air supply from the test fixture.
    G00662937Courtesy of TESLA, INC.
  13. Remove the pressure fitting adapter from the coolant pressure tester.
    G00662938Courtesy of TESLA, INC.
  14. Remove the coolant pressure tester from the 55 degree fluid coupling.
    G00662939Courtesy of TESLA, INC.
  15. Remove the coolant pressure test plug adapter from straight fluid coupling.
    G00662940Courtesy of TESLA, INC.
  16. Position the LH motor mount to the front drive unit, and then install the bolts (x3) that attach the mount to the front drive unit.

    35 Nm (25.8 lbs-ft) 55 degrees 

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

    • E14 socket
    G00662941Courtesy of TESLA, INC.
    G00662942Courtesy of TESLA, INC.
  17. Connect the front drive unit inverter inlet hose to the 90 degree fluid coupling, install the spring clip, and then perform a push-pull-push test to make sure the hose if fully seated.
    G00662943Courtesy of TESLA, INC.
  18. Install the front subframe. See SUBFRAME ASSEMBLY - FRONT (DUAL MOTOR) - REMOVE AND INSTALL
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