DME · 17. November 2025

The M3.3.1 system was installed exclusively on European high-performance E36 M3 models with S50B30 and S50B32 engines. This information is critical for operation with engines equipped with individual throttle bodies (ITBs).

DME · 17. November 2025

This page is a technical reference that provides the pinout diagram and schematic diagram for the Siemens DME MS40, M43B16/TU, M43B18/TU, M43B19/TU, M50B20/B25 engine control unit for the BMW E36 and BMW E34.