WIKI

VGS3-FDCT Personalization with previously saved data

Read and save FBS data procedure

  1. Connect to the vehicle by OBDII or on-bench for reading original TCU module data.

  2. Open the Mercedes FBS4 software

  3. Select TCU

  4. Press “Info” button to establish connection

  5. Press “Save” button to read and save the FBS data

Once the reading process is complete and the file has been saved, please also create a backup of the unit’s configuration data by following these steps:

TCU → Utilities → Save All Config Data

The saved configuration data, along with the FBS4 data, is required to personalize the replacement unit correctly.


Personalization steps

  1. Set up the donor unit on bench and use the custom cable for direct connection. (Connection information available in section 5.4.2 )

  2. Open the Mercedes FBS4 software and select TCU option.

  3. Press “Info” button to establish connection

  4. Set the unit to “Virgin” state trough the dedicated button. In case the TCU module is already “virgin “or brand new, you may directly proceed to step 5.

(From this step on, or if you already have a virgin unit, you can proceed working in the vehicle via OBDII and internal CAN connection) or proceed while the TCU is connected on-bench.

  1. Set the VIN

  2. Press “Personalize” and select the file with the saved FBS data from the original TCU module.

  3. Software would ask you to turn IGN OFF and ON to finalize the procedure

  4. Program the configuration data by pressing the “Utilities” then “Program All Config Data” and use the files saved from the original TCU.

N.B. Unit activation happens automatically after 100 ignition cycles.