BMW E39 ECU Tuning Files

This page lists 136 individual ECU files for the BMW E39, covering 29 hardware numbers and 44 software numbers. ECU manufacturers: Bosch (121), Siemens (14).

Available: Original, Stage1, Stage2, Stage3, Stage4 files. Modified files cost 10 EUR and original files cost 5 EUR. Each file fits one exact software version, so check your ECU's HW and SW numbers before you buy.

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