2025-04-10

TXV Valve - Evaporator (Non-Heat Pump)(Remove and Replace)

Correction code 18205002 1.50 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.

  • 2025-04-10: Added Note to separately adding correction code 18200102 for refrigerant recovery/recharge and updated step related to running ODIN routine for thermal performance test.
Informational PurposesAn informational icon, calling your attention
Note
This procedure requires the A/C Refrigerant (Recovery and Recharge) procedure to be performed. If not already automatically added to the Service Visit, add correction code 18200102 as a separate activity to the Service Visit.

Remove

  1. Disconnect 12V power. See 12V/LV Power (Disconnect and Connect).
  2. Remove the underhood storage unit. See Underhood Storage Unit (Remove and Replace).
  3. Recover the A/C refrigerant. See A/C Refrigerant (Recovery and Recharge).
    Informational PurposesAn informational icon, calling your attention
    Note
    The following steps can be performed while the refrigerant is recovered.
  4. Remove the inner HVAC plenum duct. See Duct - HVAC Plenum - Inner (Remove and Replace).
  5. Remove the cover for the 12V positive terminal.
  6. Loosen the nut that attaches the positive terminal to the battery, and then remove the positive terminal from the battery.
  7. Release the clip that attaches the suction/liquid lines to the electrical harness near the TXV.
  8. Disconnect the electrical harness from the TXV valve connector.
  9. After the refrigerant has been fully recovered, remove the nut that attaches the suction/liquid lines fitting to the TXV valve, and then remove the fitting from the TXV valve.
  10. Remove and discard the o-rings (x2) from the suction/liquid lines fitting.
  11. Remove the bolts that attach the TXV valve to the HVAC module, and then remove the TXV valve from the HVAC module.
  12. Remove and discard the o-rings (x2) from the HVAC module.

Install

  1. Install new o-rings (x2) onto the HVAC module.
  2. Install the TXV valve onto the HVAC module, and then install the bolts that attach the TXV valve to the HVAC module.
    7.2 Nm (5.3 lbs-ft)
  3. Install new o-rings (x2) onto the suction/liquid lines fitting.
  4. Install the suction/liquid lines fitting into the TXV valve, and then install the nut that attaches the suction/liquid lines fitting to the TXV valve.
    22 Nm (16.2 lbs-ft)
  5. Perform the A/C refrigerant recharge concurrently with the remainder of this procedure. See A/C Refrigerant (Recovery and Recharge).
  6. Connect the electrical harness to the TXV valve connector.
  7. Fasten the clip that attaches the suction/liquid lines to the electrical harness near the TXV.
  8. Install the positive terminal onto the battery, and tighten the nut that attaches the positive terminal to the battery.
    6 Nm (4.4 lbs-ft)
  9. Install the cover for the 12V positive terminal.
  10. Install the inner HVAC plenum duct. See Duct - HVAC Plenum - Inner (Remove and Replace).
  11. Connect 12V power. See 12V/LV Power (Disconnect and Connect).
    Informational PurposesAn informational icon, calling your attention
    Note
    Do not install the rear apron at this time.
  12. After the A/C refrigerant recharge has fully completed, verify the operation of the A/C system.
  13. Perform the following routine using Service Mode or Toolbox (see 0005 - Service Modes): TEST-SELF_VCFRONT_X_THERMAL-PERFORMANCEvia Toolbox: (link)via Service Mode: Thermal ➜ Actions ➜ Test Thermal Performancevia Service Mode Plus:
    • Drive Inverter ➜ Front Drive Inverter Replacement ➜ Thermal System Test
    • Drive Inverter ➜ Rear Drive Inverter Replacement ➜ Thermal System Test
    • Drive Inverter ➜ Rear Left Drive Inverter Replacement ➜ Thermal System Test
    • Drive Inverter ➜ Rear Right Drive Inverter Replacement ➜ Thermal System Test
    • Drive Unit ➜ Front Drive Unit Replacement ➜ Thermal System Test
    • Drive Unit ➜ Rear Drive Unit Replacement ➜ Thermal System Test
    .
  14. Install the underhood storage unit. See Underhood Storage Unit (Remove and Replace).