Bosch number lookup
Type the 10-digit Bosch number printed on the ECU label (e.g. 0 281 020 146) and we'll tell you the ECU type, what it's fitted to and which software numbers we hold files for — from 6,366 Bosch numbers in our library.
Bosch 0261200173
Petrol engine ECU · Motronic family (ME7 / MED9 / MED17 / MG1)
Undefined ×15
neu ×6
Bosch
BMW E30 325i ×33
BMW 3er 325i ×14
BMW ×9
BMW E34 525i ×5
BMW i ×4
BMW E30 M3
BMW E30 320i
BMW 5er 525i
68 master projects
last updated 2026-07-16
Software numbers seen on this hardware
Each links to the files we sell for that software — stock and modified, by upload or by software number.
How to read a Bosch number
Diesel engine ECU — EDC15, EDC16, EDC17, MD1.
Petrol engine ECU — ME7, MED9, MED17, MG1.
Transmission, ABS / ESP and airbag units.
Bosch software number — the calibration, not the box. Search it or use the ECU pages.
ECU types and vehicles come from the project properties of our WinOLS library, so they reflect what we've actually worked on rather than a catalogue. Machine-readable: /api/bosch/<number>.