2026-04-09

Service Kit - Check Valves - Supermanifold (Remove and Replace)

Correction code 18402902 2.40 NOTE: Unless otherwise explicitly stated in the procedure, the correction code and FRT listed above 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. NOTE: See Personal Protection to make sure you are wearing proper PPE when performing the procedure below. NOTE: See Ergonomic Precautions for safe and healthy working practices.

  • 2026-04-09: Released new procedure.
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.

Procedure

  1. Set up the A/C machine.
  2. Remove the front aero shield panel. See Panel - Aero Shield - Front (Remove and Replace).
  3. Put a coolant catcher below the RH front of the vehicle.
  4. Enable Service Mode. See Service Mode (Enable and Disable).
  5. Unlock the vehicle Gateway. See Gateway (Unlock).
  6. Run Start Thermal Fluid Fill/Drain through the touchscreen.
    Informational PurposesAn informational icon, calling your attention
    Note
    Touch Thermal > Coolant System > Start Thermal Fill/Drain, touch Run, and allow the routine to complete. The Thermal Fill Drain routine has a 5 hour time limit, after 5 hours routine must be performed again.
  7. Disconnect LV power. See LV Power (Disconnect and Connect).
  8. Remove the underhood storage unit. See Underhood Storage Unit (Remove and Install).
  9. Remove the LV battery. See Battery - LV (Remove and Replace).
  10. Remove the wiper module. See Wiper Module (Remove and Replace).
  11. Remove the HEPA filter cover assembly. See Cover - Filter - HEPA (Remove and Replace).
  12. Recover the refrigerant. See A/C Refrigerant (Recovery and Recharge).
  13. Remove the front body controller. See Module - Body Controller - Front (Remove and Replace).
  14. After recovery is complete, remove the A/C hoses from the vehicle and release the vacuum in the system by pressing the schrader valves.
  15. Remove the coolant bottle cap.
  16. Put a fluid extractor in front of the vehicle.
  17. Evacuate coolant from the coolant bottle.
    Informational PurposesAn informational icon, calling your attention
    Note
    Pump fluid into the Mityvac evacuator. Maneuver the tube in the coolant bottle during evacuation to evacuate as much fluid as possible.
  18. Disconnect the coolant bottle level sensor connector.
  19. Place a shop towel on top of the front drive unit heat exchanger below the plastic coolant manifold.
  20. Remove the bolts (x2) that attach the supermanifold to the multi-system beam and slowly rest it on the front drive unit.
    Informational PurposesAn informational icon, calling your attention
    Note
    Support from underneath and rest on rag atop heat exchanger.
  21. Release the bolts (x4) that attach the multi-system beam.
  22. Put a rag underneath the RH and LH side of the multi-system beam.
    Informational PurposesAn informational icon, calling your attention
    Note
    Lift the multi-system beam up only the amount required to clear the reservoir fill neck between the top of the supermanifold and the bottom of the beam.
  23. Disconnect powertrain supply hose connector.
  24. Disconnect the powertrain supply hose from the supermanifold.
    Informational PurposesAn informational icon, calling your attention
    Note
    Plug supermanifold and powertrain supply hose.
  25. Disconnect the HV battery return hose from the supermanifold.
  26. Disconnect the chiller to battery hose from the supermanifold.
  27. Remove the clips that attach the heat pump harness at the bottom of the coolant bottle.
    Informational PurposesAn informational icon, calling your attention
    Note
    Access from the RH side of the supermanifold.
  28. Remove the screw at the rear of the coolant bottle securing the coolant bottle to supermanifold
    Informational PurposesAn informational icon, calling your attention
    Note
    Access from RH side of supermanifold, Loosen the screw and remove with a magnet.
  29. Remove the screw that attaches the coolant bottle to the supermanifold at the front of the coolant bottle.
  30. Remove the coolant bottle from the supermanifold.
    Informational PurposesAn informational icon, calling your attention
    Note
    Remove by sliding the bottle away from the supermanifold towards the rear of the vehicle, and rotate the top out.
  31. Remove and discard the snap ring of the liquid cooled condenser check valve from the supermanifold.
  32. Remove liquid cooled condenser check valve from the supermanifold.
    Informational PurposesAn informational icon, calling your attention
    Note
    If the check valve separates from the aluminum cap during removal, do not use metal tools to remove the check valve. Metal tools may scrape the supermanifold housing causing internal damage. Use your fingers or wrap electrical tape around a 90 degree pick.
  33. Install the new liquid cooled condenser check valve into the supermanifold.
    Informational PurposesAn informational icon, calling your attention
    Note
    Use ND-11 oil to lubricate the O-rings. Seat the valve past the snap ring groove.
  34. Install the new snap ring of the liquid cooled condenser check valve into the supermanifold.
    Informational PurposesAn informational icon, calling your attention
    Note
    Install the new snap ring. Make sure that the snap ring is properly seated inside the groove in the supermanifold.
  35. Inspect the coolant bottle. Make sure that both the spacer and O-ring are present and seated before installation. Lubricate the coolant bottle O-ring.
  36. Position the coolant bottle onto the supermanifold.
    Informational PurposesAn informational icon, calling your attention
    Note
    Slide the bottle between the multi-system beam and the top of the supermanifold. Engage the bottle fully into the coolant manifold.
  37. Install the screw that attaches the coolant bottle to the supermanifold at the front of the coolant bottle.
    5 Nm (3.7 lbs-ft)
  38. Install screw at the rear of the coolant bottle that attaches the coolant bottle to the supermanifold.
    5 Nm (3.7 lbs-ft)
  39. Attach the clips (x2) that hold the heat pump harness at the bottom of the coolant bottle.
  40. Install the bolts (x4) that attach the multi-system beam to the vehicle.
    60 Nm (44.2 lbs-ft)
    Informational PurposesAn informational icon, calling your attention
    Note
    Position the beam and start the bolts by hand.
  41. Install the bolts (x2) that attach the supermanifold to the multi-system beam.
    31 Nm (22.9 lbs-ft)
    Informational PurposesAn informational icon, calling your attention
    Note
    Support from underneath, hand start bolts to supermanifold. Remove shop towel from heat exchanger.
  42. Connect the chiller to battery hose to the supermanifold.
    Informational PurposesAn informational icon, calling your attention
    Note
    Perform a push-pull-push test to make sure that the hose is fully seated.
  43. Connect the HV battery return hose to the supermanifold.
    Informational PurposesAn informational icon, calling your attention
    Note
    Perform a push-pull-push test to make sure that the hose is fully seated.
  44. Connect the powertrain supply hose to the supermanifold.
    Informational PurposesAn informational icon, calling your attention
    Note
    Perform a push-pull-push test to make sure that the hose is fully seated.
  45. Install the connector for the powertrain supply hose sensor.
  46. Install the coolant bottle level sensor and attach the harness.
  47. Remove the nut that attaches the discharge line to the compressor.
  48. Remove the nut that attaches the suction line to the compressor.
  49. Remove the A/C manifold line from the supermanifold and remove the A/C manifold line assembly out of the vehicle.
  50. Disconnect the high pressure PT sensor connector.
  51. Disconnect the connector from the electronic expansion valve recirc.
  52. Disconnect the connector from the electronic expansion valve liquid cooled condenser.
  53. Disconnect the connector from the shut off valve liquid cooled condenser.
  54. Disconnect the connector from the electronic expansion valve cabin condenser right.
  55. Disconnect the connector from the High pressure PT sub cool sensor.
  56. Disconnect the connector from the electronic expansion valve cabin condenser left.
  57. Disconnect the electronic expansion valve chiller connector.
  58. Disconnect the connector from the electronic expansion valve evap.
  59. Move the thermal sub harness assembly away from the supermanifold.
  60. Remove and discard the snap ring of the cabin condenser check valve from the supermanifold.
  61. Remove the cabin condenser check valve from the supermanifold.
    Informational PurposesAn informational icon, calling your attention
    Note
    If the check valve separates from the aluminum cap during removal, do not use metal tools. Metal tools may scrape the supermanifold housing causing internal damage. Use your fingers or wrap electrical tape around a 90 degree pick.
  62. Install the new cabin condenser check valve into the supermanifold.
    Informational PurposesAn informational icon, calling your attention
    Note
    Use ND-11 oil to lubricate O-rings. Seat the valve past the snap ring groove.
  63. Install the new snap ring for the cabin condenser check valve into the supermanifold.
    Informational PurposesAn informational icon, calling your attention
    Note
    Make sure that the snap ring is properly seated inside the groove in the supermanifold.
  64. Remove and discard the evaporator check valve snap ring from the supermanifold.
  65. Remove the evaporator check valve from the supermanifold.
    Informational PurposesAn informational icon, calling your attention
    Note
    If the check valve separates from the aluminum cap during removal, do not use metal tools. Metal tools may scrape the supermanifold housing causing internal damage. Use your fingers or wrap electrical tape around a 90 degree pick.
  66. Install the new evaporator check valve into the supermanifold.
    Informational PurposesAn informational icon, calling your attention
    Note
    Use ND-11 oil to lubricate O-rings. Seat the valve past the snap ring groove.
  67. Install the new evaporator check valve snap ring into the supermanifold.
    Informational PurposesAn informational icon, calling your attention
    Note
    Make sure that the snap ring is properly seated inside the groove in the supermanifold.
  68. Connect the connector for the electronic expansion valve evap.
  69. Install the connector for the electronic expansion valve chiller.
  70. Install the connector for the electronic expansion valve cabin condenser left.
  71. Install the connector for the electronic expansion valve right.
  72. Install the connector to the High pressure PT sub cool sensor.
  73. Install the connector for the shut off valve liquid cooled condenser.
  74. Install the connector for the electronic expansion valve liquid cooled condenser.
  75. Install the connector for the electronic expansion valve recirc.
  76. Install the connector for the high pressure PT sensor.
  77. Replace the seal washer on the supermanifold to compressor A/C line assembly on the compressor discharge line.
    Informational PurposesAn informational icon, calling your attention
    Note
    Lube seal washer with ND-11 oil.
  78. Replace the seal washer on the supermanifold to compressor A/C line assembly on the compressor suction line.
    Informational PurposesAn informational icon, calling your attention
    Note
    Lube seal washers with ND-11 oil
  79. Replace the seal washers for the supermanifold to compressor A/C line on the supermanifold side.
    Informational PurposesAn informational icon, calling your attention
    Note
    Lube seal washers with ND-11 oil
  80. Install the bolt that attaches the A/C manifold line to the supermanifold.
    22 Nm (16.2 lbs-ft)
    Informational PurposesAn informational icon, calling your attention
    Note
    Inspect the O-rings and replace them if damaged. Hand start the bolt to prevent stripped threads.
  81. Install the nut that attaches the supermanifold to compressor suction line to the compressor.
    22 Nm (16.2 lbs-ft)
  82. Install the nut that attaches the supermanifold to compressor discharge line to the compressor.
    22 Nm (16.2 lbs-ft)
  83. Install the nuts (x2) that attach the supermanifold to compressor suction and discharge line to the compressor.
    22 Nm (16.2 lbs-ft)
  84. Perform system vacuum and refrigerant refill. See A/C Refrigerant (Recovery and Recharge).
  85. Install the front body controller module. See Module - Body Controller - Front (Remove and Replace).
  86. Install the HEPA filter assembly cover. See Cover - Filter - HEPA (Remove and Replace).
  87. Install the LV battery. See Battery - LV (Remove and Replace).
  88. Remove the A/C hoses from the vehicle.
  89. Perform a coolant vacuum refill. See Cooling System (Vacuum Refill).
  90. Connect LV power. See LV Power (Disconnect and Connect).
  91. Unlock the vehicle Gateway. See Gateway (Unlock)
  92. On the touchscreen, touch Thermal > Coolant System > Coolant Air Purge, and then touch Run, and allow the routine to complete.
    Informational PurposesAn informational icon, calling your attention
    Note
    Wait until coolant pumps stop running (audible noise). Routine Passed will appear, but pumps will run for 10 minutes. If you start another routine during this time, it will fail. Make sure that the vehicle is not in "Drive". Routine is still running despite the completed message. Speeds can be monitored in Garage under PT Thermal tab. Idle speed = ~1500 RPM. Test will vary speeds from 3500-6500 RPM and actuate valves between SERIES and PARALLEL. Putting the vehicle into "Drive" will stop this routine. If speeds hover at 7000 RPM, this indicates the pumps are air locked. Perform a vacuum fill. Continue to add coolant and purge until the coolant level reaches between the NOM and MAX Lines on the bottle.
  93. Inspect the coolant level and top off as necessary.
    Informational PurposesAn informational icon, calling your attention
    Note
    Make sure that the fluid level is at the Max line.
  94. Install the coolant bottle cap.
  95. Perform the following routine using Service Mode or Toolbox (see 0005 - Service Modes): TEST-SELF_VCFRONT_X_HEAT-PUMP-COMMISSIONINGvia Service Mode:Thermal ➜ Refrigerant System ➜ Run Heat Pump Commissioningvia Service Mode Plus:Drive Inverter ➜ Front Drive Inverter Replacement ➜ Heatpump commissioningvia Toolbox:(link)
  96. Perform the following routine using Service Mode or Toolbox (see 0005 - Service Modes): TEST-SELF_VCFRONT_X_THERMAL-PERFORMANCEvia 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
    via Toolbox:(link)
  97. Perform the following routine using Service Mode or Toolbox (see 0005 - Service Modes): TEST-SELF_VCRIGHT_X_HVAC-PERFORMANCEvia Service Mode:
    • Thermal ➜ Actions ➜ Test HVAC Performance
    • Thermal ➜ HVAC ➜ HVAC Performance Test
    • Thermal ➜ Actions ➜ Test HVAC Performance
    via Toolbox:(link)
  98. Install the wiper module. See Wiper Module (Remove and Replace).
  99. Install the underhood storage unit. See Underhood Storage Unit (Remove and Install).
  100. Install the front aero shield panel. See Panel - Aero Shield - Front (Remove and Replace).
  101. Calibrate the falcon wing doors: hold the upper B-pillar buttons in the down position to calibrate the doors.
  102. Remove the vehicle from the lift and deactivate Jack Mode.