Identification
Bosch M2.3 is listed in Chiptuner-Datenbank control-unit catalogue. It is indexed under M-Motronic 2.
Application scope
The cited catalogue lists this designation. Individual vehicle fitment, hardware and software still need confirmation from vehicle-specific service information.
Workshop identification
Record the complete ECU designation, Bosch and manufacturer part numbers, engine code, vehicle year and market and software identity. Use the wiring and diagnostic information for the exact application. Similar series names do not establish a common pinout, calibration, immobiliser setup or programming procedure.
Sources and limitations
Chiptuner-Datenbank control-unit catalogue; independent catalogue, accessed 10 November 2026. Any additional example source is linked above. Catalogue and tool listings are not an exhaustive fitment guarantee; this page does not establish connector pin functions.