01/03/2024 01:17:42

A/C Refrigerant (Unknown Oil Quantity) (Recovery, Flush, and Recharge)

Correction code 18200112 1.20 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.

  • 2024-03-04: Re-organize the procedure.
  • 1120026-05-A Mastercool 4000 R1234YF AC Machine
  • Robinair R134A AC Machine
  • Heat Pump Flush Kit
  • 1059330-00-B Socket External Torx 1/4in Dr. E10 5-Lobe
  • 1130480-02-A Slim Test Probes
  • 1076921-00-A Fluke 1587

Remove

  1. Set up the AC machine.
  2. Remove the HEPA filter assembly. See Assembly - Filter - HEPA (Remove and Replace).
  3. Remove the underhood storage unit. See Underhood Storage Unit (Remove and Replace).
  4. Place the vehicle in Service Mode. See Service Mode.
  5. On the touchscreen, touch Service Mode > Thermal > Refrigerant System > Start Thermal Fill Drain (Refrigerant Only) and select Run to start the routine.
  6. Perform the vehicle electrical isolation procedure. See Vehicle Electrical Isolation Procedure.
  7. Recover A/C refrigerant. See Recovery.
  8. Remove the 12V/LV auxiliary battery. See 12V/LV Battery (Remove and Replace).
  9. Release the clips (x4) that attach the coolant hose to the AC compressor bracket.
  10. Remove the nut that attaches the low pressure fitting to the A/C compressor.
    Tip: Use of the following tool(s) is recommended:
    • 13 mm deep socket
    • Flex head ratchet/flex head torque wrench
  11. Remove the nut that attaches the high pressure fitting to the A/C compressor, and then set the hose assembly aside.
    Tip: Use of the following tool(s) is recommended:
    • 13 mm deep socket
    • Flex head ratchet/flex head torque wrench
  12. Install AC flush adapters onto the AC manifold to compressor line.
  13. Connect AC machine hoses to AC flush adapters.
  14. On the AC machine touchscreen, select Menu > Flush Kit, and enter 25 mins run time and then follow the machine guide to start the flush, and then allow the process to complete.
    Informational PurposesAn informational icon, calling your attention
    Note
    system flush procedure runs for approximately 90 minutes
  15. Disconnect the A/C compressor logic connector.
  16. Remove the retaining clip that attaches the A/C compressor logic harness to the A/C compressor HV harness bracket.
  17. Remove the bolt that attaches the HV harness bracket to the A/C compressor.
    Tip: Use of the following tool(s) is recommended:
    • 13 mm socket
    • Cordless Ratchet/Impact Driver
    • Ratchet/torque wrench
  18. Remove the bolt that attaches the ground strap to the A/C compressor.
    Tip: Use of the following tool(s) is recommended:
    • Torx T25 socket
    • Cordless Ratchet/Impact Driver
    • Ratchet/torque wrench
  19. Release the clip that attaches the coolant hose to the A/C compressor bracket, near the ground strap attachment point.
  20. Pull the A/C compressor HV connector black locking tab away from the A/C compressor.
  21. Using a 45-degree pick, simultaneously push on the central locking tab while pulling on the outer locking tab, and remove the HV connector from the A/C compressor.
  22. Move the HV harness bracket forward and up to release the bracket from the A/C compressor, and then carefully set the bracket aside.
  23. Remove the bolts (x2) that attach the AC compressor bracket to the shock tower brace, and then remove the AC compressor and AC compressor bracket assembly.
    Informational PurposesAn informational icon, calling your attention
    Note
    Use of the following tool(s) is recommended:
    • 15 mm socket
    • Flex head ratchet/flex head torque wrench
  24. Remove AC compressor bracket from AC compressor.
    Informational PurposesAn informational icon, calling your attention
    Note
    Use of the following tool(s) is recommended:
    • 10 mm deep socket
    • Flex head ratchet/flex head torque wrench
  25. Use a flat scraper blade to remove the NVH acoustic cover from the compressor.
  26. Use a wire brush to remove as much NVH cover material from the compressor as possible.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    Failure to remove material will result in an inaccurate weight measurement.
  27. Use a digital scale to weigh the removed compressor and record its weight.

Install

  1. Add oil to the compressor.
    Informational PurposesAn informational icon, calling your attention
    Note
    Different brands of compressors may have different dry weights.
    Informational PurposesAn informational icon, calling your attention
    Note
    After adding the oil, the total weight = compressor dry weight + 250g.
  2. Install a new NVH acoustic cover onto the A/C compressor.
    1. Remove the adhesive backing , lay the NVH acoustic cover down with the adhesive side facing up, then align the cut outs of the NVH acoustic cover to the suction port on the A/C compressor
    2. Continue to wrap NVH acoustic cover around the compressor
  3. Position the A/C compressor bracket on the A/C compressor, and then install the bolts that attach the bracket to the compressor.
    9 Nm (6.6 lbs-ft)
    Informational PurposesAn informational icon, calling your attention
    Note
    Use of the following tool(s) is recommended:
    • 10 mm deep socket
    • Flex head ratchet/flex head torque wrench
  4. Position the AC compressor and AC compressor bracket assembly to the strut shock tower brace, and then hand-tighten the bolts (x2) to secure.
  5. Tighten the bolts (x2) that attach the compressor to the strut shock tower brace.
    31 Nm (22.9 lbs-ft)
    Informational PurposesAn informational icon, calling your attention
    Note
    Use of the following tool(s) is recommended:
    • 15 mm deep socket
    • Flex head ratchet/flex head torque wrench
  6. Position the A/C compressor HV harness bracket on the A/C compressor.
    Informational PurposesAn informational icon, calling your attention
    Note
    Make sure the HV harness bracket engages with the harness mount on the top of the A/C compressor.
  7. Fully seat the A/C compressor HV connector on the A/C compressor, and then engage the locking tab by pushing it toward the A/C compressor.
    Informational PurposesAn informational icon, calling your attention
    Note
    Perform a push-pull test to verify that the connector is fully attached.
  8. Install the clip that attaches the coolant hose to the A/C compressor bracket, near the ground strap attachment point.
  9. Position the ground strap on the A/C compressor, and then install the bolt that attaches the ground strap to the A/C compressor.
    7 Nm (5.2 lbs-ft)
    Informational PurposesAn informational icon, calling your attention
    Note
    This bolt is self-tapping. It is not necessary to tap the compressor bolt hole.
    Tip: Use of the following tool(s) is recommended:
    • Torx T25 socket
    • Cordless Ratchet/Impact Driver
    • Ratchet/torque wrench
  10. Install the bolt that attaches the HV harness bracket to the A/C compressor.
    9 Nm (6.6 lbs-ft)
    Tip: Use of the following tool(s) is recommended:
    • 13 mm deep socket
    • Ratchet/torque wrench
    Tip:
  11. Install the retaining clip that attaches the A/C compressor logic harness to the A/C compressor HV harness bracket.
  12. Connect the A/C compressor logic connector.
  13. Install the clips (x4) that attach the coolant hoses to the A/C compressor bracket.
  14. Install the 12V/LV battery into the vehicle. See 12V/LV Battery (Remove and Replace).
  15. Disconnect the A/C machine hoses from the A/C flush adapters.
  16. Remove the A/C flush adapters from the A/C manifold to compressor line.
  17. Replace the seal washer on the high side A/C manifold to compressor line.
  18. Replace the seal washer on the low side A/C manifold to compressor line.
  19. Position the supermanifold to A/C compressor high pressure fitting on the A/C compressor, and then install the nut that attaches the fitting to the A/C compressor.
    22 Nm (16.2 lbs-ft)
    Tip: Use of the following tool(s) is recommended:
    • 13 mm deep socket
    • Flex head ratchet/flex head torque wrench
  20. Position the supermanifold to A/C compressor low pressure fitting on the A/C compressor, and then install the nut that attaches the fitting to the A/C compressor.
    22 Nm (16.2 lbs-ft)
    Tip: Use of the following tool(s) is recommended:
    • 13 mm deep socket
    • Flex head ratchet/flex head torque wrench
  21. Perform A/C vacuum leak test. See A/C Refrigerant (Recovery and Recharge).
  22. Recharge A/C refrigerant. See A/C Refrigerant (Recovery and Recharge).
  23. Connect 12V/LV power. See 12V/LV Power (Disconnect and Connect).
  24. Unlock the vehicle gateway. See Gateway (Unlock).
  25. On the touchscreen, tap the Service Mode "wrench" (at the bottom of the touchscreen UI), and then tap Sensors and Valves > Run Heat Pump Commissioning > Run, and allow the routine to complete.
  26. Tap Actions > Test Thermal Performance > Run, and close once the routine is passed.
  27. Tap Actions > Test HVAC Performance > Run, and close once the routine is passed.
  28. Exit Service Mode. See Service Mode.
  29. Install the 2nd row seat cushion. See Seat Cushion - Lower - 2nd Row (Remove and Replace).
  30. Install the underhood storage unit. See Underhood Storage Unit (Remove and Replace).
  31. Install the HEPA filter assembly. See Assembly - Filter - HEPA (Remove and Replace).