0E0E04 Mercedes Fault Code :
Read the description of 0E0E04 in ACM2TuEURO and the engine lights up for ACM2TuEURO TuEURO Aftertreatment Control Module code, there are some possible causes for it.
The power supply of component '17R01: AdBlue suction line heater resistor 1', '17R02: AdBlue pressure line heater resistor 2' or '17R03: AdBlue bleed line heater resistor 3' has a short circuit to ground.