this i would surmise is a five cylinder version of the 320tdi engine used in the current benz e class. i also assume that it is a hell of an engine. i have ho idea if it is compatable with any sedans, but it seems possible.
the dodge sprinters are the same as the freightliner which is a mb van same as what is sold in europe and probably elsewhere as well. i think the freightliners have been available here for four or five years. fed ex is running a slew of them, so if you could find someone in maintenance there you might get info from them.
i also saw on ebay what looked like a 603 turbo crate motor. not much info on it, so i would be hesitant to buy unless it was very cheap... not knowing what it was for.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.