2026-08-05

Clean Radiator

Correction code 18301000 0.96 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. NOTE: See Personal Protection to make sure wearing proper PPE when performing the below procedure. NOTE: See Ergonomic Precautions for safe and healthy working practices.

  • 2026-08-03: Added the PROC_VC_X_RESET-RADIATOR-UA-INDEX routine.
  • 2025-11-11: Add a step to clean the small stones remaining on the back of the radiator and the lower part of the cooling fan housing.
  • 2023-11-02: Updated the AGS-related steps.

Procedure

  1. Place the vehicle on the 2-post lift.
  2. Open the LH front door and lower the LH front window.
  3. Remove the active grille shutter. See Active Grille Shutter (Remove and Replace).
  4. Remove the locking tabs (x8) that attach the plastic grille to the radiator.
  5. Use a vacuum to clean the dirt on the radiator.
    Informational PurposesAn informational icon, calling your attention
    Note
    If necessary, remove the large debris.
  6. Use a blow gun to clean the dirt on the radiator again.
    Informational PurposesAn informational icon, calling your attention
    Note
    Do not get too close to the radiator blades.
    Informational PurposesAn informational icon, calling your attention
    Note
    Dust and debris may fly out during the process; make sure to protect the vehicle and wear proper PPE , such as a mask, safety glasses, etc.
  7. Release the upper and lower locking tabs that secure the radiator to the cooling and shroud assembly.
  8. Use an inflatable airbag to separate the radiator.
    Informational PurposesAn informational icon, calling your attention
    Note
    Use an inflatable airbag to raise the edge of the radiator at an angle. Be careful not to damage the surface of the radiator and the two holding mounts.
  9. Clean the bottom of the cooling fan.
  10. Inspect the bottom of the cooling fan for debris.
  11. Remove the inflatable airbag.
  12. Install the radiator into the cooling fan and shroud assembly.
  13. Install the locking tabs (x8) that attach the plastic grille to the radiator.
  14. Install the active grille shutter. See Active Grille Shutter (Remove and Replace).
    Informational PurposesAn informational icon, calling your attention
    Note
    Terminate after connecting the LV power.
  15. Locally connect a laptop with Toolbox 3 to the vehicle. See Toolbox (Connect and Disconnect).
  16. In Toolbox, click the Actions tab, search for "Radiator", select PROC_VC_X_RESET-RADIATOR-UA-INDEXvia Toolbox:(link), select Run, then allow the routine to complete.
    Informational PurposesAn informational icon, calling your attention
    Note
    Perform this step for firmware versions develop/2026.14.3 and later.
  17. On the touchscreen, select Thermal > Actions > Test Thermal Performance, then select Run and allow the routine to complete.
  18. Disconnect Toolbox and remove the laptop from the vehicle.
  19. Exit Service Mode Plus. See Service Mode Plus.
  20. Raise the LH front window and close the LH front door.
  21. Remove the vehicle from the lift.