Engine Control Module: Notes
The new DDE7.3 engine control module is used on the US version M57D30T2 engine. The DDE 7 version is used due to the fact that the DDE 6 engine control module was not sufficient to accommodate the addition of the SCR system as well as additional OBD functions.
DDE 7 will be used on future generations of diesel engines including the N57 which will be available sometime later.