B30C15 Mercedes Fault Code :
Read the description of B30C15 in ACM02T and the engine lights up for ACM02T - Exhaust aftertreatment (17A03) code, there are some possible causes for it.
The signals of components '17B11 (Exhaust back pressure sensor upstream of diesel particulate filter (DPF))' and '17B12 (Exhaust back pressure sensor downstream of diesel particulate filter (DPF))' are implausible.