17/11/2024 21:19:39

EXV Core - Supermanifold (Remove and Replace)

Correction code 1840010082 FRT 0.42 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.

  • 2024-02-05: Updated the tool list, an image and re-organized the steps of connecting connectors.
  • 1588741-00-A HVAC Socket Kit
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Warning
HFO-R1234yf and R134a are considered hazardous liquids and if handled incorrectly can cause serious injury. Suitable protective clothing, consisting of face and eye protection, heat-proof gloves, rubber boots and apron or waterproof overalls must be worn when carrying out operations on the air conditioning system.
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CAUTION
Thermal management components operate under very tight specifications and can malfunction if Service procedures are not carefully followed. DO NOT rely on past experience with other thermal management systems; read through the Service Manual and do not deviate from the instructions.
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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.

Torque Specifications

Table 1. Torque Specifications: EXV Core - Supermanifold (Remove and Replace)
Description Torque Value Recommended Tools Reuse/Replace Notes
Bolt that attaches the supermanifold-to-compressor A/C line to the supermanifold
22 Nm (16.2 lbs-ft)
  • 13 mm socket
  • Cordless Ratchet/Impact Driver
  • 6 in extension
  • Flex head ratchet/flex head torque wrench
Reuse
Expansion valve core
19 Nm (14.0 lbs-ft)
  • 1588741-00-A - HVAC Socket Kit
  • 3 in extension
  • 3/8 to 1/2 in Adapter
  • Flex head ratchet/flex head torque wrench
Reuse/Replace

Remove

  1. Set up the AC machine.
  2. Open the LH front door and lower the LH front window.
  3. Enable Service Mode via vehicle touchscreen. See Service Mode.
  4. Unlock the vehicle gateway. See Gateway Unlock.
  5. On the touchscreen, touch Service Mode > Thermal > Refrigerant System > Start Thermal Fill Drain (Refrigerant Only) and select Run, and then allow the routine to complete.
  6. Disconnect the LV power. See LV Battery - Li-lon (Disconnect and Connect).
  7. Remove the underhood storage unit. See Underhood Storage Unit (Remove and Replace).
  8. Recover the A/C refrigerant. See A/C Refrigerant (Recovery and Recharge) (Maintenance).
  9. Remove the bolt that attaches the supermanifold-to-compressor A/C line to the supermanifold.
    Tip: Use of the following tool(s) is recommended:
    • 13 mm socket
    • Cordless Ratchet/Impact Driver
    • 6 in extension
    • Flex head ratchet/flex head torque wrench
  10. Remove the supermanifold-to-compressor A/C line from the supermanifold, and move it aside.
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    Note
    Carefully position the line so that oil does not drip out.
  11. Release the locking tab, and then disconnect the electrical connector from the high pressure and temperature sensor.
    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.
  12. Release the locking tab, and then disconnect the electrical connector from the recirc EXV (expansion valve).
    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.
  13. Release the locking tab, and then disconnect the electrical connector from the liquid cooled condenser 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.
  14. Release the locking tab, and then disconnect the electrical connector from the liquid cooled condenser shut off valve.
    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.
  15. Release the locking tab, and then disconnect the electrical connector from the right side cabin condenser 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.
  16. Release the locking tab, and then disconnect the electrical connector from the high pressure and temperature subcool sensor.
    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.
  17. Release the locking tab, and then disconnect the electrical connector from the left side cabin condenser 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.
  18. Release the locking tab, and then disconnect the electrical connector from the chiller 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.
  19. Release the locking tab, and then disconnect the electrical connector from the evap 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.
  20. Move thermal harness from supermanifold to side.
  21. Use a pick to pull the locking tab downward, and then pull toward the front of the vehicle to remove the EXV coil.
  22. Remove the EXV core from the supermanifold.
    Tip: Use of the following tool(s) is recommended:
    • 1588741-00-A - HVAC Socket Kit
    • 3 in extension
    • 3/8 to 1/2 in Adapter
    • Flex head ratchet/flex head torque wrench
    Warning IconA warning icon, calling your attention to a possibly risky situation
    Warning
    The video(s) included in this procedure are meant as an overview for supplemental purposes only. Follow all of the steps listed in the procedure to avoid damage to components and/or personal injury.

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.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    Warning
    The video(s) included in this procedure are meant as an overview for supplemental purposes only. Follow all of the steps listed in the procedure to avoid damage to components and/or personal injury.
  2. Fully torque the EXV on the supermanifold.
    19 Nm (14.0 lbs-ft)
    Tip: Use of the following tool(s) is recommended:
    • 1588741-00-A - HVAC Socket Kit
    • 3 in extension
    • 3/8 to 1/2 in Adapter
    • Flex head ratchet/flex head torque wrench
  3. Install the EXV coil onto the EXV.
    Informational PurposesAn informational icon, calling your attention
    Note
    Slide the coil seal onto the expansion valve. Do not lubricate the coil seal. Properly align the expansion valve coil locking tab to the supermanifold. Slide the expansion valve coil over the coil seal. Perform a push pull push test on the expansion valve coil to ensure the coils is properly latched.
  4. Route thermal harness back to supermanifold.
  5. Connect the electrical connectors that were disconnected during removal, and then engage the connector locks.
  6. Connect the electrical connector from the evap EXV, and then engage the connector lock.
  7. Connect the electrical connector from the chiller EXV, and then engage the connector lock.
  8. Connect the electrical connector from the left side cabin condenser EXV, and then engage the connector lock.
  9. Connect the electrical connector from the high pressure and temperature subcool sensor, and then engage the connector lock.
  10. Release the locking tab, and then disconnect the electrical connector from the right side cabin condenser EXV, and then engage the connector lock.
  11. Connect the electrical connector from the liquid cooled condenser shut off valve, and then engage the connector lock.
  12. Connect the electrical connector from the liquid cooled condenser EXV, and then engage the connector lock.
  13. Connect the electrical connector from the recirc EXV (expansion valve), and then engage the connector lock.
  14. Connect the electrical connector from the high pressure and temperature sensor, and then engage the connector lock.
  15. 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.
  16. 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.
  17. Tighten the bolt that attaches the A/C line to the supermanifold.
    22 Nm (16.2 lbs-ft)
    Tip: Use of the following tool(s) is recommended:
    • 13 mm socket
    • Cordless Ratchet/Impact Driver
    • 6 in extension
    • Flex head ratchet/flex head torque wrench
  18. Perform the vacuum leak test and oil injection. See Vacuum Leak Test and Oil Injection.
  19. Recharge the A/C refrigerant. See A/C Refrigerant (Recovery and Recharge) (Maintenance).
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    Recharge the refrigerant exactly as instructed. Failure to adhere to the instructions can cause catastrophic damage to the cooling system.
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    Note
    Do not disconnect the laptop from the vehicle yet.
  20. Connect the LV battery power. See LV Battery - Li-lon (Disconnect and Connect).
  21. Unlock the vehicle gateway. See Gateway Unlock.
  22. Access the thermal system routines on the touchscreen: Touch Quick Controls > Service Mode > Diagnostics > Thermal.
  23. Perform the heat pump commissioning through UI: Touch Thermal > Sensors and Valves > Run Heat Pump Commissioning, and then touch Run.
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    Note
    Touch Close once the routine is passed.
  24. Perform the thermal performance test through UI: Touch Thermal > Actions > Test Thermal Performance, and then touch Run.
    Informational PurposesAn informational icon, calling your attention
    Note
    Touch Close once the routine is passed.
  25. Perform the HVAC performance test through UI: Touch Thermal > Actions > Test HVAC Performance, and then touch Run.
    Informational PurposesAn informational icon, calling your attention
    Note
    Touch Close once the routine is passed.
  26. Exit Service Mode through UI. See Service Mode.
  27. Install the underhood storage unit. See Underhood Storage Unit (Remove and Replace).
  28. Raise the LH front window and close the LH front door.