I am pretty sure the only 126 coupes imported into this country were gassers. Were there any 126 diesel coupes in any country?

Same question for 124 coupes.

I think the only turbo-diesel coupes were 123s built from '82-'84 and there were about 8000 imported.

I've never seen anything other than the 380SEC and 500SEC. I think you are spot on on this.

There was never a 126 diesel coupe:

380 SEC
420 SEC (very rare in the US)
500 SEC
560 SEC

I suppose you could put an OM 617 in a coupe chassis and call it a “300 SDC.”

I bet it has been done. The later cars came with the six cylinder diesel, that would also be a possibility.

I like the looks of the S-Class coupe, it is pretty sharp.

Wouldn`t fit. Barley enough room for a V 8.

John

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a diesel w126 coupe is the most absurd thing I have yet heard....

Why not? In front, they're just a 126....I'll bet it would be a relatively easy swap too. In fact, I know where there's a 500SEC with a dead engine...hmmm.

Actually, I think it would be a howl to build up one of those +400hp Finnish diesel beasts to go troll for Corvettes and other poseurs. Just think, you could smoke their a**es on waste fry oil too.

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Never a dull moment at Berry Hill Farm.

Nobody wants a gasser with 200K miles on it so the prices go through the basement. We all know a Mercedes diesel can run for 500K or more So it seems like a natural swap. I doubt I would ever make the swap, but I would love to see one or even buy one.

Thank you for the tremendous effort that I am sure it took for you to extend your mental powers to the limit to come up with that useful opinion, I really do care what you think.

That would be so much fun! You could deflate a few riced Hondas ego's while your at it.

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1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200

FWIW, fellas, the C126's only were offered with V8's. That is the worldwide criterium for an SEC. No diesels, and nothing less than 3.8 liters and 8 cylinders.

I don't think a diesel would suit an SEC well. I think the V8's suit those cars just fine. I would prefer the 420SEC(for fuel economy), too bad they only made them for overseas.

I have no idea why you would even take the time to write such a reply. Feeling insulted because I don't think a diesel "matches" the s-class w126 coupe body? Sorry to see you care

har!

This is one diesel that would make short work of an M117.968's paltry 238hp. It would fit just fine under the hood of a C126 too.

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Never a dull moment at Berry Hill Farm.

400 horsepower? Is that all?!?

Why limit yourself? Beef the front suspension to handle a 12 valve 6BT Cummins, remove the hood, up the fuel output form the injector pump, put high-flow injectors on, add a second turbo with intercooler, and go to town

If one of these engines can get a 7000lb+ crew-cab 4x4 pickup to break 11 seconds in the quarter mile, imagine what it could do with a 126 coupe I'm guessing that it'd be like putting a big block on a go-kart

I know, I know.

Peak power isn't the issue. I'm talking about a linear power curve from a dead stop, smooth and responsive engine, and whisper quiet at top gear highway speeds. Those characterize the SEC's I've driven, and I wouldn't have it any other way.
The 603 only gets quiet after 100 mph. And not before.

Besides. You know me, right? I'm the nut with all those tire squealing diesel videos!