2026-09-04

21mm Radiator (Remove and Replace)

Correction code

  • 2026-09-04: Released new procedure.

Remove

  1. Remove the cooling fan module. See .
  2. Remove the 12mm radiator. See .
  3. Release the locking tabs (x4) that attach the 21mm radiator to the cooling fan module, and then remove the 21mm radiator from the cooling fan module.
    Note
    Push the 21mm radiator away from the cooling fan module while releasing each locking tab.
    Tip
    Use of the following tool(s) is recommended:
    • Small flat head screwdriver

Replace

  1. Position the 21mm radiator on the cooling fan module, and then install the locking tabs (x4) that attach the 21mm radiator to the cooling fan module.
    Note
    Align the 21mm radiator locking tabs with the cooling fan module, and then press the 21mm radiator on the cooling fan module to engage the locking tabs.
  2. Install the 12mm radiator. See .
  3. Install the cooling fan module. See .
  4. Locally connect a laptop with Toolbox 3 to the vehicle. See Toolbox (Connect and Disconnect).
  5. 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.
    Note
    Perform this step for firmware versions develop/2026.14.3 and later.
  6. Disconnect Toolbox and remove the laptop from the vehicle.
  7. Exit Service Mode Plus. See Service Mode Plus.