Some of the enthusiast I know recently asked me to do this job. He wants both worlds here and asked me if he could swap a om628-29 in a old w116 280se. Since I never worked on a w116 wonder if it fits.

Engine bay is fairly wide on the 116, it accommodated the 6.9L and the 116/117 V8s so I'd think you'd be okay on space. The OM628 fit in the G-wagon which has a fairly narrow engine bay.

My real question is engine management. How do you plan to control it? I think you'll get bogged down in systems integration issues long before you run into packaging issues.

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68 280SL - 70 280SL - 70 300SEL 3.5 - 72 350SL - 72 280SEL 4.5 - 72 220 - 72 220D - 73 450SL - 84 230GE - 87 200TD - 90 190E 2.0 - 03 G500

Nissan GTR - Nissan Skyline GTS25T - Toyota GTFour - Rover Mini - Toyota Land Cruiser HJ60 - Cadillac Eldorado - BMW E30 - BMW 135i

Probably a full standalone ECU, Electronic speedometer through ECU SPD signal (adjustable). so I can bypass the immobilizer. I think I will use a 6spd off an E220 CDI.