Diesel or Gasoline? - Page 2 - Mercedes-Benz Forum

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post #11 of 16 (permalink) Old 11-27-2006, 06:15 PM
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Originally Posted by Gazolba
Since I see you own both W115 and W123 diesels, how do they compare? Is the W123 much better? I really prefer the shape of the W114/W115 to the later models even though the later models may be more refined.
Gazolba, the W115 is less refined than the W123 but as it was my first diesel it's my keeper. When it comes down to looking at them in the garage I just like the W115 more. The W123 has some more room to work and the oil changes are easier. The W115 has a horizontal oil filter which is silly. The parts are more plentiful as they made more W123's than W115's and so they are more common. Mechanically they are similar. I like the W115's because they are even more simple than the W123's. No vacuum monovalves leaking, no vaccum adjustments, no climate control panels burning out. It's a pull lever, and twist knob everything. As for performance the W123's are faster as there was no turbodiesel or a manual with anything more than 4 cylinders in a W115. I like the dash layout with the round chrome gauges rather than the more traditional recessed instrument cluster. These things are all aesthetic but a lot of it has to do with the condition of the car you happen to test drive and what your personal preferences are. The problem with W115's are that they rust like crazy and I one I have is clean the other is rusting badly! On the other hand the W123's have better rust protection, a stiffer chassis, and they do corner better but I would say the W115 has a better road ride over potholes and poor pavement. The W123's are also more refined overall, quieter, better fuel economy, and more powerful even in 240D form but still easy enough to live with when the battery dies. You can roll start it easy!

Give the cars a test drive and let us know what you think.

P.S. I might as well throw in the fact that my W123 240D 4 Speed is for sale.

1977 - W116 - 6.9
1974 - W115 - 240D /8 - 4(M) OM617.910 + Turbo + 300D FW - Completed 7/8/10
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post #12 of 16 (permalink) Old 11-27-2006, 06:38 PM
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In a word

Originally Posted by GermanStar
The main diesel complaints (from folks who don't like diesels) are the smell, smoke, noise, and lack of hp. They tolerate heat extremely well, and provide less problems mechanically than do gassers due to a much simpler design.

As far as old diesels go, it simply boils down to this -- you're either a diesel nut or you aren't. Diesel nuts aren't in a hurry, hear music rather than noise, and love the smell. It may be an acquired taste for some, but there are a bunch of them out there.
Beautifully said.

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post #13 of 16 (permalink) Old 11-27-2006, 06:49 PM
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one more..

is it even remotely possible to squeeze something like say.. a 602 into a 115 (or even 114 )??

83 300Dt 228k mr.brown (hiberating)
87 190Dt 239k daily
99.5 TDi 220k bro's
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post #14 of 16 (permalink) Old 11-27-2006, 07:12 PM
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You might take a close look at the thread for today "For 240D lovers" in the W123 section of the forum, there is a new auction over in Los Angeles, for a very very excellent 123 240D stick, that I think is about as good as an example of one you're likely to find, and maybe not geographically undesireable to your locaion. But make sure the AC is cold as you are in Phx

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post #15 of 16 (permalink) Old 11-30-2006, 12:02 AM
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w115 200d - 55hp
w115 240d - 65hp
w115 300d - 82hp

w123 200d 1976 - 1979 - 55hp
w123 200d 1980 - 1984 - 60hp
w123 240d 1976 - 1979 - 65hp
w123 240d 1980 - 1984 - 67hp

w123 300d 1976 - 1979 - 82hp
w123 300d 1980 - 1984 - 88hp
w123 300d turbo 1984-85 - 125hp federal version (euro)
w123 300d turbo 1984-85 - 118hp california version
i suggest you get a 300d manual tranny for better trorque yet fuel efficient, but if you are into speed get a 300d turbo.
fuel consumptions based on the owners manual
200d 11kms/liter
240d 9kms/liter
300d 8kms/liter
300d-turbo 7kms/liter

gas fed w115's and w123's on 200 engine does around 5-6kms/liter
the 250's and 280's consume 4-5kms/liter
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post #16 of 16 (permalink) Old 11-30-2006, 07:33 PM
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Old MB gas engines typically last less than -200K miles. Diesels will do an absolute minimum of 300K miles unless they are driven by an idiot.
According to my owners manual the 115 300D has 77hp at 4350rpm.
And my 300D is for sale too, $1000
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