Battery was flat when it came to me, nothing stored...
When they were trying it would hit one or two cylinders and then nothing.

Scanned car at the time andnothing showed up, that I found out does not mean the ECM has noting stored it means that a real german scanner may find a code but the Snap-on MT2500 may not see it at all, this I found is very common to Mercedes Benz cars.

I did look to see if there were codes after cranking on the advice of a Mercedes Benz tech up the street but again nothing shows up.