For the EGR. The W115 models had one to govern the injection pump.

I can't think of any good reason to put a W123 240D engine into a W115 body....too much work. Now if you wanted a turbocharged 617....that's another story, and it has been done (check the archives) but I never saw any details about HOW it was done. Yes, the oil filter housing has to be relocated, and it's a real tight fit on the left hand side where the W115 battery lives. Might have to adapt a different air cleaner too and I'm not sure if the power steering reservoir can stay where it is either.

That said, I wonder how many good, W115-style 616 & 617 engines are still out there....should one ever need a replacement. The cars often rust out or are in wrecks before the engines wear out, but I've been reading too many stories about ruined engines too, these days.

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1976 240D "Katja"

I remembered seeing this on Youtube a few weeks ago. Awful music but it is an MB diesel in a rat rod:

http://www.youtube.com/watch?v=_nCvjWHGnTQ

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'81 300CD - 180K, cannot be killed by any conventional means
'99 Ford Escort - good MPG

Another good video ruined by terrible music playing over what people REALLY want to hear, the engine.

The flapper and whole concept is cool, but has that guy ever heard of engine degreaser? And 40-something MPG?!?! Phuleesse!

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1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver

1982 300SD - 232K miles - Wife's Daily Driver

1986 560SL - Wife's red speed machine

115 and 123 chassis do use a different oil filter housing, but if you have the room under the hood it should fit. When the 123 chassis came out it was the first or close to the first to use the "new" universal arrangement, alt on right, a/c on lower left, ps upper left and so on. The 115 has different mounts for those devices. I do believe that there are mounting bosses that are missing engine from engine. Trans should mount with no problem. You engine shut off I believe on the 115 chassis is the old mechanical style? You may have to modify your ignition switch to accomodate the vacum shut off or just swap out the pumps.

Bumping an old thread. Where is the link to oil filter housing swap? Thanks