Fully functional educational tool designed to provide an in-depth understanding of modern diesel engine technologies. It features a 4-cylinder inline diesel engine equipped with a Common Rail EDC fuel injection system, an Exhaust Catalytic Converter/Filter, an AdBlue (SCR) system for emission control, and a Turbocharger. The trainer includes a MAN instrument cluster and offers advanced diagnostic capabilities through an OBD 16-pin connector, facilitating fault code simulations and real-time system parameter analysis. Electrical signal measurements are made possible through open contacts with banana plug jumpers, enhancing diagnostic accuracy.