0F0312 Mercedes Fault Code :
Read the description of 0F0312 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 PRV_SUC5_0x529 (SUC Modul 5 - Actual Values 1).