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'85 380SL (155Kmiles), '82 240D stick, '80 300SD, '77 240D, '89 BMW 535i, 3 VW Diesels, 2 Triumphs
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Discussion Starter #1
I have a tentative appointment to look at what has been described as a 1975 280SL.

Did they have D-jet in those and is that a dealbreaker ( I realize that a subjective question)?
 

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It Is What It Is, Dude
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'75 would be D-Jet.


Check out the Mercedes-Benz SL series versions and types link in section 00 of the EGv107...


It's no deal breaker, just a different set of issues.
 

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'72 350SL, '85 300D, '98 E320, '19 Subaru Outback (sold '14 GLK250)
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I have a tentative appointment to look at what has been described as a 1975 280SL.

Did they have D-jet in those and is that a dealbreaker ( I realize that a subjective question)?
For me, the D-Jet would be a deal-maker :) But I am slightly prejudiced!

A D-Jet should work just fine, just a different and slightly non-standard set of things to learn. If ever d-jet parts are hard to find, they should be easier to convert to Megasquirt or similar newer injection systems when the time comes.
 

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Outstanding Contributor , Bob's Your Uncle!
-----'83 280 SL----- 5 speed....The PIG
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There is a big section in the M110 manual for carburated engines as well.

Did those engines ever make it into a 107?
 

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1978 280slc
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A d-jet 280 sounds nice. Seriously since it is EFI it wouldn't need much work to megasuirt.

I've seen a bunch of m110 carbed engines in the junkyard, mostly in euro model sedans.
 

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450slc5.0cab 280sl5sp 280se4.5 500se+500slAMG +250seStkW108 350sl4spdX3 500secEuro
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Someone around here has a d-jet 5-speed 280sl. I assume that is a pretty rare one, as the 5-speed was an option (over the 4-speed manual) back then.
 

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For ease of use/maintenance I would go for D jet over K jet any day.

If/when i shop for an SL, the only ones that will be considered will be D jet. and yes, that limits the opportunities, but i feel one will leave me smiling, the other will leave me cursing.
 

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1972 350SL 148,000 miles
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For me, the D-Jet would be a deal-maker :) But I am slightly prejudiced!

A D-Jet should work just fine, just a different and slightly non-standard set of things to learn. If ever d-jet parts are hard to find, they should be easier to convert to Megasquirt or similar newer injection systems when the time comes.
For ease of use/maintenance I would go for D jet over K jet any day.

If/when i shop for an SL, the only ones that will be considered will be D jet. and yes, that limits the opportunities, but i feel one will leave me smiling, the other will leave me cursing.
Just because that is what I learned on, I agree, the D-jet was surprisingly simple and fun to rebuild although I didn't think so at the time, but I was able to do it all myself and quite frankly not really drop any money into it, which was good because I had zero money at the time, but plenty of time, I'd look at a K-jet and it would be Greek to me
 

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It's no deal breaker, just a different set of issues.
We got that Dave :)

Worth noting the people who have them on this forum were enthusiastically positive about them, except Nobby who doesn't have one I think, he got distracted by his aspirations anyway (thats a carburetor pun for those that missed it) and Fonzi who was trying to get his ass in gear (and that's a transmission pun)

you'll note this is post 11, after post 10 :)
 

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Lets just say it a 280 d-jet is the best prospect for 25mpg in the 107 body with power.
 

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'85 380SL (155Kmiles), '82 240D stick, '80 300SD, '77 240D, '89 BMW 535i, 3 VW Diesels, 2 Triumphs
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Discussion Starter #13
^^ Is Daryn saying D-jet is more fuel efficient than K-jet?

I must confess that I haven't really had ANY issues so far with the K-jet lambda on the 380SL. I do have an old VW cabriolet with K-jet that sat around for too long and gummed up. I am yanking the engine and converting that puppy to diesel.

I am inclined to want K-jet just for parts availability and pricing issues, but I could be convinced to go the other way...
 

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If you convert the d-jet to megasquirt their isn't any gnarley modification necessary to DIY fuel injection tuning. The computer system from the 70s was very mediocre compared to modern computer. If you convert to megasquirt you run cheap junkyard parts. I think you use either ford or gm fuel injectors and sensors. I really would love to squirt a r107 it sounds like a great project and once you get the fuel maps set correctly the car should run much better with more power and better economy.

Seriously K-jet is a great system but you cannot modify it to tune the car the way you'd like it to run. I've read two fuel injection books and they both basically say not to modify k-jet.
 

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Discussion Starter #15 (Edited)
Another Opportunity- same car ...different day

Well, I started this thread 9 months ago when a '75 280SL popped up on the local radar for $2500.

I could never hook up with the owner, so I never got to see it in person and it eventually fell off Craigslist.

The other day I was driving back from work and saw the same 280SL on the side of the road for sale (oddly on the same route I take TO WORK every morning at 0-dark-30, but I never saw it).

Turns out the guy that bought it months ago is dumping it after changing the computer and fuel pump and is asking $2700. Probably still a fair price with the pain he went through.

I am kind of tempted, but I really only would consider a stick and this is going to be 722.1xx 3 spd slushbox. Although I suppose I could convert it, lately I've got a wild hair for an e24 or e28 BMW to waste money on and piss off SWMBO.

OTOH, it can't hurt to look, can it?
 

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I'm confused. Is it a 5-speed manual or an automatic. If it is a 5-speed, it is your duty as a forum member to buy it or force a fellow forum member to buy it... Unless it is a total rust bucket, in which case it needs to be parted for its rare parts.




Sent from AutoGuide.com App
 

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Discussion Starter #17
No, it's an automatic.

If it was a 5 speed you would already be seeing a "See my new wheels" thread...

I have an M110 flywheel and 4 speed gearbox, so going that far with it isn't out of the question, but puts it in the hard pile with a bunch of other projects and SWMBO venting.
 
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