Amazon.com: SZSS-CAR OBD OBD2 Connector Diagnostic Adapter for Mercedes-Benz 16 pin to 38 pin Connector (BENZ-16T38) : Automotive
Amazon.com: E-Car Connection Universal 38 Pin Male to 16 Pin Female OBD OBD2 Car Diagnostic Adapter Connector Cable Transfer Line for Mercedes Benz : Automotive
Mercedes OBD 38 Pin Cable | ECU Remap Center
Mercedes 38 pin to OBD-2 pinout diagram @ pinoutguide.com