0F030D Mercedes Fault Code :
Read the description of 0F030D in TCM01B and the engine lights up for TCM01B - TCMV Transmission Control Module Voith code, there are some possible causes for it.
CAN - Protokoll VOITH private CAN Timeout der CAN-Empfangsbotschaft PDO_APPC_0x190 (Setpoint Setting ASM).