Trade-Shop OBD1 38-Pin Mercedes Benz to 16-Pin OBD2 Adapter for All Mercedes Benz Models up to Approx. Year of Manufacture 2000, W124 W140 S202 W202 W203 W204 : Amazon.de: Automotive
Diagnostic ports & building a code reader | Mercedes-Benz Forum
38Pin To 16Pin OBD2 Connector Cable For Mercedes-Benz W124 W203 W204 W140 W202 | eBay
Mercedes Ke-Jetronic - Reading codes in percents from the X11 diagnostic port on Mercedes W124/W201 - YouTube