20/01/2023 03:57:17

Inverter Coolant Leak Test

Correction code 40202010 0.10 NOTE: Unless otherwise explicitly stated in the procedure, the above correction code and FRT reflect all of the work required to perform this procedure, including the linked procedures. Do not stack correction codes unless explicitly told to do so.NOTE: See Flat Rate Times to learn more about FRTs and how they are created. To provide feedback on FRT values, email LaborTimeFeedback@tesla.com. NOTE: See Personal Protection to make sure wearing proper PPE when performing the below procedure.

  • 1053600-00-C Drive Unit Pressure Test Fixture
  • 1132185-00-B Kit, Coolant Leak Test Adapters, Model 3
  • 1133843-00-A Kit, Coolant Drain & Fill Adapters, M3
  • 1135762-00-A Kit, Svc Plug, Cooling Hose, Model 3

Procedure

  1. Disconnect 12V power. See 12V/LV Power (Disconnect and Connect).
  2. Remove the mid aero shield panel. See Panel - Aero Shield - Mid (Remove and Replace).
  3. Position a coolant drain under the inverter.
  4. Disconnect the coolant outlet hose at the top of the inverter.
  5. Plug the female fitting of the hose, and connect the coolant pressure test adapter to the inverter.
  6. Connect the drive unit pressure test fixture to the coolant pressure test adapter.
  7. Close both valves P1 (inlet) and P2 (outlet) on the test fixture, and connect a compressed air supply line.
  8. Fully close the regulator, and then open P1 (inlet valve).
  9. Set the pressure regulator of the test fixture to 26 psi.
  10. Disconnect the coolant inlet hose at the bottom of the inverter, plug the female fitting of the hose, and allow the inverter to drain.
  11. Connect the coolant drain adapter to the bottom of the inverter, and direct the tube to the coolant drain.
  12. Slowly open P2 (outlet valve) to speed the drain, and then close P2 (outlet valve).
  13. Disconnect the coolant drain adapter, and then connect the coolant pressure test adapter plug to the inverter.
  14. Open P2 (outlet valve) again, and allow at least 45 seconds for the pressure to stabilize to 26 psi.
  15. Close P1 (inlet valve), record the starting pressure displayed, and start a 4 minute timer.
  16. After 4 minutes record the ending pressure displayed.
  17. Subtract the ending pressure from the starting pressure: the acceptable pressure difference is 0.2 psi or less.
    • If the difference is 0.2 psi or less, continue the procedure.
    • If the difference more than 0.2 psi, check the hose, adapter, and plug fittings, close P2 (outlet valve) and open P1 (inlet valve), check the regulator pressure, and then retest from step 14. If the difference is still more than 0.2 psi, refer to Toolbox article 6415200 (Tesla Internal) or 6415200 (External parties).
  18. Disconnect the air supply from the test fixture.
  19. Open P1 (inlet valve), and disconnect the test fixture from the coolant pressure test adapter.
  20. Remove the coolant pressure test adapter and coolant pressure test adapter plug from the inverter, and the plugs from the hoses.
  21. Connect the hoses to the inverter.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    Perform a push-pull test to verify that the hose is fully seated.
  22. Remove the coolant drain from under the vehicle.
  23. Install the mid aero shield panel. See Panel - Aero Shield - Mid (Remove and Replace).
  24. Connect 12V power. See 12V/LV Power (Disconnect and Connect).
  25. Perform a vacuum refill the cooling system. See Cooling System (Vacuum Refill).