As I know the M113/112 W202 was only ever fitted with 722.6

The early C55 used either the gate shifted 722.636 from 98-99 E55 or 722.636 Touch shift for 00 models.

I did see something interesting the other day where someone fitted a M112 to a pre 98 chassis and looked like they had welded in the main engine support cross member from the 98+ , I could be wrong but it surely looked this way!.. there was a huge amount of rewiring involved also..