1A0E03 Mercedes Fault Code :
Read the description of 1A0E03 in ACM2TuEURO and the engine lights up for ACM2TuEURO TuEURO Aftertreatment Control Module code, there are some possible causes for it.
The signal voltage of component 17B12: Exhaust pressure sensor downstream of diesel particulate filter (DPF) is too high.