Back in 1984 while working in Europe I bought a 1984 Mercedes 250 gas with a 123 body with auto trans.Then in 1986 I came back to the states and had it converted for EPA.Two years later I returned to Europe for another stint.To make a long story short my wife and I regard this car as part of the family but I'd like to convert it to diesel,would this be a wise move??Will a diesel motor bolt up to my auto trans??The body,paint and interior all all in good shape.I'am considering bio-diesel in the future.