Michael Slade said:
Still wondering about a Merc. diesel in the RRC and/or the CrewCab.
Well, if anyone can manage it, it'd likely be you, Michael, but I've got my doubts about any of the NAFTA engines proving to be workable because of the computer issues.
The problem is that the engine computer is also tied in to the computers that control the braking system, the traction control, the transmission shift points, and even (infamously) communication with the transponder in the ignition key that lets the vehicle start. Personally, I think it'd be quite a feat to keep the Sprinter engine happy if it wasn't connected to all the other Sprinter running gear, as the ECU needs to have positive reports about things all over the truck, down to things like acceptable tire diameters.
Come to think of it--and I don't know that it's a fact, but I'd be willing to bet on it--I'm guessing one major reason that we didn't have Sprinter 4x4 options until this Sportsvans top-to-bottom conversion came along was due to the difficulty of keeping the engine happy with different running gear. I'm certain that someone can (or did) figure out how to make the engine computer happy with Ford axles, but I'll bet it wasn't easy.
Of course, this situation isn't much different than if I tried to put a new computer-controlled CAT diesel into my Unimog . . . which got me nothing but laughter when I once brought it up. Apparently, the engines need their computers to run and the computers need a whole bunch of acceptable inputs from all over the truck, making engine swaps across manufacturers real doubtful.
Just my $0.02, though, and I'm an known wuss about such things, so maybe with a little courage and patience . . . ?