2026-04-28

Remove and Clean Radiator (Heat Pump) (Maintenance)

Correction code 18301200 1.32 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.

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Warning
This procedure is a DRAFT. Although it has been validated, Warnings and Cautions might be missing. Follow safety requirements and use extreme caution when working on or near High Voltage systems and components.
  • 2026-04-21: Released new procedure.
  1. Open LH front door
  2. Lower LH front window
  3. Raise and support vehicle
  4. Open hood
    Informational PurposesAn informational icon, calling your attention
    Note
    Press "Open" button on touchscreen to release latch, Lift lid manually
  5. Remove rear apron
    Informational PurposesAn informational icon, calling your attention
    Note
    12x clips, Only store rear apron visible face upwards
  6. Remove cabin intake upper duct assembly
    Informational PurposesAn informational icon, calling your attention
    Note
    3x clips, Some configurations may come with 4x clips
  7. Remove closeout panel from frunk assembly
    Informational PurposesAn informational icon, calling your attention
    Note
    4x clips, 1x connector, Frunk safety switch, 3x guide tabs, Grab closeout panel from bottom then pull it upward to release clips, Disconnect switch
  8. Remove bolts securing frunk assembly
    Informational PurposesAn informational icon, calling your attention
    Note
    7x bolts, 10mm, 5 Nm
  9. Remove frunk assembly from vehicle
    Informational PurposesAn informational icon, calling your attention
    Note
    12x clips, Replace any clips if broken or missing, Number of clips may vary on older vehicles
  10. Connect to vehicle using Toolbox
    Informational PurposesAn informational icon, calling your attention
    Note
    Vehicle connection is integrated into drivers footwell cover, Navigate to https://toolbox.teslamotors.com and establish connection to vehicle, Select connection status icon at top right corner then select connect locally, Icon will turn green when connected, Successful connection will automatically unlock vehicle gateway and place UI in Service Mode Plus, If RJ45 ethernet diagnostic connector present connect directly from laptop using an RJ45 Ethernet cable, For local connection issues with Toolbox refer to https://toolbox.teslamotors.com/articles/43695
  11. Select ‘Actions/Autodiag’ and search for ‘Thermal’
  12. Perform "Start Thermal Fluid Fill/Drain (Coolant only)" in Toolbox
    Informational PurposesAn informational icon, calling your attention
    Note
    Click "Run" and allow routine to complete. Select ‘X’ at top right of window to close once complete, Verify vehicle is in Series via Garage > Vitals > Thermal tab > Coolant loops, Thermal Fluid Fill/Drain routine has a 5 hour limit, After 5 hours routine must be performed again
  13. Disconnect active grille shutter actuator connector
    Informational PurposesAn informational icon, calling your attention
    Note
    1x connector, Disengage locking tab
  14. Remove ambient temperature sensor cover from active grille shutter
  15. Disconnect ambient temperature sensor connector
    Informational PurposesAn informational icon, calling your attention
    Note
    1x connector
  16. Release clip securing front harness to frunk reinforcement bracket
    Informational PurposesAn informational icon, calling your attention
    Note
    1x clip
  17. Remove bolts securing frunk reinforcement bracket
    Informational PurposesAn informational icon, calling your attention
    Note
    2x bolts, 10mm, 16 Nm
  18. Remove frunk support beam from cooling fan module assembly
    Informational PurposesAn informational icon, calling your attention
    Note
    Slide the frunk support beam towards rear of vehicle
  19. Raise vehicle fully and lower lift onto locks
    Informational PurposesAn informational icon, calling your attention
    Note
    Set vehicle to comfortable working height, Ensure an audible click of locks on both sides is heard before lowering, Vehicle may tilt to the side if both locks are not engaged
  20. Remove outer fasteners securing front aero shield
    Informational PurposesAn informational icon, calling your attention
    Note
    9x bolts, 10mm, 5 Nm
  21. Remove front aero shield
    Informational PurposesAn informational icon, calling your attention
    Note
    2x nuts, 15mm, 5 Nm
  22. Remove clips securing LH front wheel liner to lower valance
    Informational PurposesAn informational icon, calling your attention
    Note
    3x push clips
  23. Remove nut securing lower valance to LH side of inner fascia
    Informational PurposesAn informational icon, calling your attention
    Note
    1x nut, 10mm, 3 Nm
  24. Remove clips securing RH front wheel liner to lower valance
    Informational PurposesAn informational icon, calling your attention
    Note
    3x push clips
  25. Remove nut securing lower valance to RH side of inner fascia
    Informational PurposesAn informational icon, calling your attention
    Note
    1x nut, 10mm, 3 Nm
  26. Release pedestrian warning harness
    Informational PurposesAn informational icon, calling your attention
    Note
    1x connector, 1x clip, Pull tab to disengage lock, Pull again release from connector, Speaker is located behind RH wheel liner, Connector access may vary depending on revision of super horn audio speaker, May require to use a pocket screw driver or miniature pick to release red locking tab covered by anti-tampering feature
  27. Remove clips securing front valance to front fascia and remove front valance
    Informational PurposesAn informational icon, calling your attention
    Note
    10x push clips, 6x tabs
  28. Place coolant drain container below LH front of vehicle
  29. Disconnect the radiator inlet and allow coolant to drain
    Informational PurposesAn informational icon, calling your attention
    Note
    1x spring clip, Plug hose and radiator
  30. Place coolant drain container below RH front of vehicle
  31. Disconnect radiator outlet hose from radiator and allow coolant to drain
    Informational PurposesAn informational icon, calling your attention
    Note
    1x spring clip, Plug hose and radiator
  32. Remove coolant drain container from underneath vehicle
  33. Disconnect connector to cooling fan module
    Informational PurposesAn informational icon, calling your attention
    Note
    1x connector, Disconnect this after coolant hose is capped to avoid coolant damaging connector
  34. Remove RH bolt securing cooling fan module assembly to front end carrier
    Informational PurposesAn informational icon, calling your attention
    Note
    1x bolt, 8mm, 10 Nm, Recommend assistance to support the cooling fan module assembly
  35. Remove LH bolt securing cooling fan module assembly to front end carrier
    Informational PurposesAn informational icon, calling your attention
    Note
    1x bolt, 8mm, 10 Nm, Recommend assistance to support the cooling fan module assembly
  36. Remove cooling fan module assembly from vehicle
    Informational PurposesAn informational icon, calling your attention
    Note
    Recommend assistance
  37. Release locking tabs securing active grill shutter to cooling fan and shroud assembly and remove active grill shutter
    Informational PurposesAn informational icon, calling your attention
    Note
    14x locking tabs
  38. Release Radiator from fan shroud
    Informational PurposesAn informational icon, calling your attention
    Note
    2x tabs, 2x mounts, If stone guard is not present on new radiator then proceed to 18302500402
  39. Clean debris from radiator
    Informational PurposesAn informational icon, calling your attention
    Note
    Vacuum both sides of radiator, Do not damage fins of radiator
  40. Clean radiator with compressed air
    Informational PurposesAn informational icon, calling your attention
    Note
    Clean both sides of radiator with compressed air, Do not damage fins of radiator
  41. Install radiator into cooling fan and shroud assembly
    Informational PurposesAn informational icon, calling your attention
    Note
    2x holding mounts, 2x locking tabs
  42. Install active grill shutter to cooling fan and shroud assembly
    Informational PurposesAn informational icon, calling your attention
    Note
    14x locking tabs
  43. Install cooling fan module assembly into vehicle and loosely install LH and RH bolts
    Informational PurposesAn informational icon, calling your attention
    Note
    2x bolts, 8mm, 10 Nm, Recommend assistance to support the cooling fan module assembly
  44. Torque LH bolt securing cooling fan module assembly to front end carrier
    Informational PurposesAn informational icon, calling your attention
    Note
    1x bolt, 8mm, 10 Nm
  45. Torque RH bolt securing cooling fan module assembly to front end carrier
    Informational PurposesAn informational icon, calling your attention
    Note
    1x bolt, 8mm, 10 Nm, Recommend assistance to support the cooling fan module assembly
  46. Position coolant drain container below RH front of vehicle
  47. Install radiator outlet hose to radiator
    Informational PurposesAn informational icon, calling your attention
    Note
    1x spring clip, Remove plugs from both ends of the coolant connection, Perform push-pull-push test to make sure hose is fully seated
  48. Position coolant drain container below LH front of vehicle
  49. Install radiator inlet hose to radiator
    Informational PurposesAn informational icon, calling your attention
    Note
    1x spring clip, Remove plugs from both ends of the coolant connection, Perform push-pull-push test to make sure hose is fully seated
  50. Remove coolant drain container from underneath vehicle
  51. Install connector to cooling fan module
    Informational PurposesAn informational icon, calling your attention
    Note
    1x connector
  52. Position front valance to front fascia and install clips securing front valance to front fascia
    Informational PurposesAn informational icon, calling your attention
    Note
    10x push clips, 7x tabs, Recommend assistance
  53. Connect pedestrian warning harness
    Informational PurposesAn informational icon, calling your attention
    Note
    1x connector, 1x clip, Engage locking tab
  54. Install nut securing lower valance to RH side of inner fascia
    Informational PurposesAn informational icon, calling your attention
    Note
    1x nut, 10mm, 3 Nm
  55. Install clips securing RH front wheel liner to lower valance
    Informational PurposesAn informational icon, calling your attention
    Note
    3x push clips
  56. Install nut securing lower valance to LH side of inner fascia
    Informational PurposesAn informational icon, calling your attention
    Note
    1x nut, 10mm, 3 Nm
  57. Install clips securing LH front wheel liner to lower valance
    Informational PurposesAn informational icon, calling your attention
    Note
    3x push clips
  58. Position front aero shield to vehicle and install nuts
    Informational PurposesAn informational icon, calling your attention
    Note
    2x nuts, 15mm, 5 Nm
  59. Apply Loctite 222 onto front aero shield bolts and install outer fasteners to front aero shield
    Informational PurposesAn informational icon, calling your attention
    Note
    9x bolts, 10mm, 5 Nm
  60. Lower vehicle fully
    Informational PurposesAn informational icon, calling your attention
    Note
    Raise lift off locks, then hold lock release lever to keep locks free while vehicle is lowered
  61. Install frunk support beam into cooling fan module assembly
    Informational PurposesAn informational icon, calling your attention
    Note
    Position CFM mounts onto tabs on CFM
  62. Install bolts securing frunk reinforcement bracket
    Informational PurposesAn informational icon, calling your attention
    Note
    2x bolts, 10mm, 16 Nm
  63. Install clip securing front harness to frunk reinforcement beam
    Informational PurposesAn informational icon, calling your attention
    Note
    1x clip
  64. Connect ambient temperature sensor connector
    Informational PurposesAn informational icon, calling your attention
    Note
    1x connector
  65. Install ambient temperature sensor cover into active grille shutter
  66. Install connector to active grille shutter actuator
    Informational PurposesAn informational icon, calling your attention
    Note
    1x connector , Engage locking tab
  67. Remove coolant bottle cap
    Informational PurposesAn informational icon, calling your attention
    Note
    (*Use this step for Model 3 Heat pump vehicles)
  68. Place empty coolant container into front storage area
    Informational PurposesAn informational icon, calling your attention
    Note
    (*Use step for Model 3 Heat Pump vehicles)
  69. Fill container with at least 15L of coolant
  70. Place filled coolant container into front storage area
    Informational PurposesAn informational icon, calling your attention
    Note
    (*Use step for Model 3 Heat Pump vehicles)
  71. Place refill hose inside filled coolant container
    Informational PurposesAn informational icon, calling your attention
    Note
    Make sure hose end is fully submerged into coolant
  72. Install coolant reservoir adapter cap onto coolant bottle assembly
    Informational PurposesAn informational icon, calling your attention
    Note
    (*Use step for Model 3 with Heat Pump & NV35) 1x adapter cap, Adapter found in Vacuum Refill kit, turn clockwise to tighten cap onto coolant bottle
  73. Setup coolant Vacuum Refill Tool
    Informational PurposesAn informational icon, calling your attention
    Note
    Verify all valves on refill tool are in the closed position, See image for clarity
  74. Connect vacuum refill hose to refill cap on coolant bottle
    Informational PurposesAn informational icon, calling your attention
    Note
    Perform push-pull-push test to verify hose is fully engaged (*Use this step for Model 3 Heat Pump vehicles)
  75. Place overflow hose into empty container
  76. Place refill hose inside filled coolant container
    Informational PurposesAn informational icon, calling your attention
    Note
    Make sure hose end is fully submerged into coolant
  77. Connect shop air supply to coolant refill tool
    Informational PurposesAn informational icon, calling your attention
    Note
    If not already done, Verify refill valve is set to off
  78. Open air inlet valve to draw a vacuum, Once gauge stabilizes, Fully close valve
    Informational PurposesAn informational icon, calling your attention
    Note
    Gauge stabilizes roughly (60-70 cmHg), Vacuum should not drop after the valves are closed
  79. Slowly open coolant refill valve to allow coolant to be drawn into coolant refill hose, Close valve when hose is full of coolant
    Informational PurposesAn informational icon, calling your attention
    Note
    This purges trapped air from the hose
  80. Monitor gauge for 30 seconds to verify a vacuum is maintained in cooling system
  81. Reopen air inlet valve for 3 minutes to continue evacuating cooling system, then close valve
  82. Slowly open refill valve to draw coolant into system
    Informational PurposesAn informational icon, calling your attention
    Note
    Valve lever is inline with hose when fully open, Make sure end of refill hose is fully submerged in container during entire process, Coolant will be transferred through hose from container to vehicle coolant reservoir, Vacuum gauge needle will move towards zero as it fills
  83. When gauge reaches zero, close coolant refill valve
  84. Disconnect shop air supply from coolant refill tool
  85. Remove coolant refill hose from coolant container
  86. Remove coolant overflow hose from waste coolant container
  87. Disconnect vacuum refill hose from refill cap on coolant bottle
    Informational PurposesAn informational icon, calling your attention
    Note
    (*Use this step for Model 3 Heat Pump procedures)
  88. Remove coolant refill tool from vehicle
  89. Remove both coolant containers from inside underhood area
    Informational PurposesAn informational icon, calling your attention
    Note
    (*Use this step for Model 3 vehicle procedures)
  90. Select ‘Actions/Autodiag’ tab and search for ‘Purge'
  91. Run ODIN routine TEST_VCFRONT_X_THERMAL-COOLANT-AIR-PURGEvia Service Mode:
    • Thermal ➜ Actions ➜ Coolant Purge Stop or Coolant Purge Start
    • Thermal ➜ Coolant System ➜ Coolant Purge Start
    via Service Mode Plus:
    • Drive Inverter ➜ Front Drive Inverter Replacement ➜ Coolant Air Purge
    • Drive Inverter ➜ Rear Drive Inverter Replacement ➜ Coolant Air Purge
    • Drive Inverter ➜ Rear Left Drive Inverter Replacement ➜ Coolant Air Purge
    • Drive Inverter ➜ Rear Right Drive Inverter Replacement ➜ Coolant Air Purge
    • Drive Unit ➜ Front Drive Unit Replacement ➜ Coolant Air Purge
    • Drive Unit ➜ Rear Drive Unit Replacement ➜ Coolant Air Purge
    via Toolbox:(link)
  92. Inspect coolant level and top off as necessary
    Informational PurposesAn informational icon, calling your attention
    Note
    Ensure that fluid level is at Max line
  93. Install coolant bottle cap
    Informational PurposesAn informational icon, calling your attention
    Note
    (*Use this step for Model 3 Heat Pump vehicles)
  94. Select ‘Actions/Autodiag’ and search for ‘Thermal’
  95. Select ‘Stop Thermal Fluid Fill/Drain’, click ‘Run’, and allow routine to complete
    Informational PurposesAn informational icon, calling your attention
    Note
    Select ‘X’ at top right of window to close once complete
  96. Perform Thermal System Performance Test through toolbox 3
    Informational PurposesAn informational icon, calling your attention
    Note
    Select ‘Actions’ tab and search for 'Thermal System Performance Test', Select TEST-SELF_VCFRONT_X_THERMAL-PERFORMANCE, select 'Complete inflate' click 'RUN', Select ‘X’ at top right of window to close once complete, if thermal test fails follow https://toolbox.teslamotors.com/articles/206000
  97. Disconnect Toolbox from vehicle and remove laptop and diagnostics adapter ethernet harness
    Informational PurposesAn informational icon, calling your attention
    Note
    If RJ45 ethernet diagnostic connector present media converter box not required disconnect directly from laptop using an RJ45 Ethernet cable or from OBDII connection
  98. Install frunk assembly to vehicle
    Informational PurposesAn informational icon, calling your attention
    Note
    12x clips, Make sure frunk assembly is fully seated onto clips, Number of clips may vary on older vehicles, Ensure A/C compressor HVIL harness is not pinched between frunk assembly and thermal beam, replace any damaged clips
  99. Install bolts securing frunk assembly
    Informational PurposesAn informational icon, calling your attention
    Note
    7x bolts, 10mm, 5 Nm
  100. Install frunk close out panel
    Informational PurposesAn informational icon, calling your attention
    Note
    4x clips, 1x connector, Frunk safety switch, 3x guide tabs, Align 3x tabs then push downward to secure clips
  101. Install cabin intake upper duct assembly
    Informational PurposesAn informational icon, calling your attention
    Note
    3x clips, Some configurations may come with 4x clips
  102. Install rear apron
    Informational PurposesAn informational icon, calling your attention
    Note
    12x clips
  103. Close hood
  104. Raise LH front window
  105. Close LH front door