How to Compare BMW CAFD Coding Files to Find Exact Parameter Differences

Procedureadvanced 1 min read Video Guide
F-series (2010-2019)G-series (2018-present)FEM #coding #e-sys #retrofit #CAFD #NCD-compare #FDL #parameters #advanced #coding-files #comparison

Compare two CAFD coding files to see exactly which FDL parameters change when you modify the Vehicle Order. Essential for retrofits — lets you identify specific parameters to change manually without losing previous ECU customizations.

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What's Covered

  1. 1Connect to the car and read the current ECU coding
  2. 2Save the current coding file (the 'before' state)
  3. 3Modify the Vehicle Order and recode the ECU
  4. 4Read and save the new coding file (the 'after' state)
  5. 5Open the NCD Compare tool
  6. 6Load both files and run the comparison
  7. 7Analyze the parameter differences
  8. 8Save the comparison output
  9. 9Restore the original coding