C350e Fault Code P1D03 -Check Engine light is on

[BarteKK]

Hi All,
I have recently bought MB C350e (Phev) and a month later Check Engine light popped out. When I diagnosed it with iCarsoft MB V2.0 it read P1D03. I can not find any information related to this error. Car is behaving normally. I can reset this error but it comes back the next time car is started. What is this related to? Any help is much appreciated.

 

[amazighman]

P1D03 - All CAN Malfunction Battery Condition Monitor Module - Generator Motor Control Module

 

[BarteKK]

Thanks for this. I've seen it already but not sure where to start. Which battery?

 

[BarteKK]

Error code P1D03-13 is related to Partial load crankcase ventilation valve. Part A2740182201. The faulty valve had no continuity and the error was constantly coming back. Due to difficult access to the component as part of diagnostic I have cleared all alarms and unplugged the valve electrical connector. ECU showed the same malfunction as before which confirmed faulty valve.
New valve read 40 Ohms resistance and deactivated the check engine light after installation. Old valve had some oily emulsion residue inside.
Access was a bit difficult but didn't required accessing the engine compartment from underneath the car.
I've come across similar fault P052E which is also linked to ventilation line but FULL load crankcase ventilation line. Fixing this error requires access from underneath the car and replacement of the oil separator.
Part A2740182201 Eur75

 

[NicolaiHB]

Error code P1D03-13 is related to Partial load crankcase ventilation valve. Part A2740182201. The faulty valve had no continuity and the error was constantly coming back. Due to difficult access to the component as part of diagnostic I have cleared all alarms and unplugged the valve electrical connector. ECU showed the same malfunction as before which confirmed faulty valve.
New valve read 40 Ohms resistance and deactivated the check engine light after installation. Old valve had some oily emulsion residue inside.
Access was a bit difficult but didn't required accessing the engine compartment from underneath the car.
I've come across similar fault P052E which is also linked to ventilation line but FULL load crankcase ventilation line. Fixing this error requires access from underneath the car and replacement of the oil separator.
Part A2740182201 Eur75

Had my car for Service today, and also to check the engine light i got. i Have a C350E late 2016, and it came back with the error P1D02 with and extra P052E. The Message i got from the dealer was ventilation valve for crankcase short circuit to positive. Permanent after clearing codes. Positive crankcase ventilation regulator performance. Stuck - Permanent. Any ideas -

Sincerely

Nicolai H