2025-04-10

Valve Body - EXV - Supermanifold (Heat Pump) (Remove and Replace)

Correction code 18401302 1.44 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 steps related to running ODIN routines.
  • 2023-04-04: Updated A/C oil type to be used with reference to Fluids and Capacities for A/C oil specifications.

This procedure is to remove and replace any of the electronic expansion valves.

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. Set up A/C machine .
  2. Open LH front door
  3. Lower LH front window
  4. Remove the underhood storage unit. See Underhood Storage Unit (Remove and Replace).
  5. Connect to vehicle using Toolbox 3.0
  6. Select "Actions/Autodiag" and search for "Thermal"
  7. Remove HSD cable from Ethernet port to disconnect Toolbox 3.0 from vehicle
  8. Disconnect 12V power. See 12V/LV Power (Disconnect and Connect).
  9. Recover the refrigerant from the vehicle. See A/C Refrigerant (Recovery and Recharge).
  10. Remove the bolt that attaches the supermanifold-to-compressor A/C line to the supermanifold.
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • 13 mm socket
    • Flex head ratchet/flex head torque wrench
    • 6 in extension
  11. Remove the supermanifold-to-compressor A/C line from the supermanifold, and then hang it on the underhood storage unit support beam using an s-hook.
    Informational PurposesAn informational icon, calling your attention
    Note
    Carefully hang the line so that oil does not drip out.
  12. Release the connector locks, and then disconnect the electrical connectors leading up to the desired EXV. Follow the disconnect order in the example image.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    DO NOT push down on the red locking tab. Pull the tab away from the connector until the connector is unlocked, and then continue pulling to release the connector.
    Informational PurposesAn informational icon, calling your attention
    Note
    The disconnect order is for ease of access.
    Figure 1. Disconnect order
  13. Release the locking tab, and then disconnect the electrical connector from the desired EXV.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    DO NOT push down on the red locking tab. Pull the tab away from the connector until the connector is unlocked, and then continue pulling to release the connector.
    Figure 2. Evap EXV shown
  14. Remove the supermanifold harness from the supermanifold.
  15. Use a pick to pull the locking tab downward, and then pull toward the front of the vehicle to remove the EXV coil.
  16. Remove the EXV valve body from the supermanifold.
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • 1588745-00-A - Expansion Valve Socket, 28mm, 1/2" Drive
    • 6 in extension
    • Flex head ratchet/flex head torque wrench

Install

  1. Lubricate the EXV threads and O-rings with the appropriate A/C oil. See Fluids and Capacities for A/C oil specifications. Then hand-start the valve into the supermanifold.
  2. Fully torque the EXV on the supermanifold.
    19 Nm (14.0 lbs-ft)
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • 1588745-00-A - Expansion Valve Socket, 28mm, 1/2" Drive
    • 6 in extension
    • Flex head ratchet/flex head torque wrench
  3. Install the EXV coil onto the EXV.
    Informational PurposesAn informational icon, calling your attention
    Note
    Align the locking tab on the connector assembly with the recess in the EXV.
  4. Connect the electrical connectors that were disconnected during removal, and then engage the connector locks.
  5. Install new seal washers on the supermanifold side of the supermanifold-to-compressor A/C line, and then lubricate the washers with a small amount of the appropriate A/C oil. See Fluids and Capacities for A/C oil specifications..
  6. Position the supermanifold-to-compressor A/C line on the supermanifold, and then hand tighten the bolt that attaches the A/C line to the supermanifold.
  7. Tighten the bolt that attaches the A/C line to the supermanifold.
    22 Nm (16.2 lbs-ft)
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • 13 mm socket
    • Flex head ratchet/flex head torque wrench
    • 6 in extension
  8. Perform A/C vacuum test, and then recharge the refrigerant. See A/C Refrigerant (Recovery and Recharge).
  9. Connect 12V power. See 12V/LV Power (Disconnect and Connect).
  10. Connect to vehicle using Toolbox 3.0
  11. Select "Actions/Autodiag" and search for "commissioning"
  12. Perform the following routine using Service Mode or Toolbox (see 0005 - Service Modes): TEST-SELF_VCFRONT_X_HEAT-PUMP-COMMISSIONINGvia Toolbox: (link)via Service Mode: Thermal ➜ Refrigerant System ➜ Run Heat Pump Commissioningvia Service Mode Plus: Drive Inverter ➜ Front Drive Inverter Replacement ➜ Heatpump commissioning
    Informational PurposesAn informational icon, calling your attention
    Note
    If this routine is not run after entering Thermal Drain/Fill mode, the AC compressor operation will be blocked, Select "X" at top right of window to close once complete
  13. Select "Actions/Autodiag" and search for "Thermal"
  14. 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
  15. Install the underhood storage unit. See Underhood Storage Unit (Remove and Replace).