Hi guys,
Still trying to feel my way through these old Diesels before pulling the trigger on one... Bear with me!

So I'm mostly looking at the W115 and the W123. As far as I can tell, when talking about the W123, 240D is the normally aspirated 5-cyl, while the 300D is a turbo 5-cyl. Is this correct?

Now, my real question: It seems to me that on the W115 chassis, both the 240D and 300D are N/A 5-cyls... No turbodiesel on the W115, is this true? If so, then what is the difference between the 240D and the 300D on the W115?

Thanks!

A 240D whether it be a W123 or W115, is a NA 2.4 liter 4 cylinder motor.

A W115 300D is a 3.0 liter NA 5 cylinder.

A W123 300D 77-81 is a NA 5 cylinder, 82-85 5 cylinder Turbo diesel.

__________________
1985 300TD Turbo Euro-wagon
1979 280CE 225,200 miles
1985 300D Turbo 264,000 miles
1976 240D 190,000 miles
1979 300TD 220,000

GONE but not forgotten
1976 300D 195,300 miles
1983 300D Turbo 175,000 miles

http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg

Yes, for North American versions. But all Euro versions through 85 will be non-turbo versions. An exception is the Japanese market, which received both turbo and non turbo variants through 85.

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'81 MB 300SD, '82 MB 300D Turbo (sold/RIP), '04 Lincoln Town Car Ultimate

Sooner or later every car falls apart, ours does it later!
-German Narrator in a MB Promotion Film about the then brand new W123.

Correct, sorry I should have stated that it only applies to the USV's.

__________________
1985 300TD Turbo Euro-wagon
1979 280CE 225,200 miles
1985 300D Turbo 264,000 miles
1976 240D 190,000 miles
1979 300TD 220,000

GONE but not forgotten
1976 300D 195,300 miles
1983 300D Turbo 175,000 miles

http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg

Not entirely true, Europeans could shell it out for turbo wagons.

__________________
1981 300TD 4 speed manual
Euro bumpers, zender valance and skirts, H&R springs, billy HD's, leveled sls, real AMG Pentas 16x8 et11, vdo boost/egt gauges intergrated into ash tray, eurolights, led 3rd brake light

We're talking 300Ds here, not 300TDs.

__________________
'81 MB 300SD, '82 MB 300D Turbo (sold/RIP), '04 Lincoln Town Car Ultimate

Sooner or later every car falls apart, ours does it later!
-German Narrator in a MB Promotion Film about the then brand new W123.

Welcome to the Forum, Kev.

240 refers to the displacement of the engine, as does 300. 300TD is Touring Diesel, meaning station wagon. 300CD is Coupe Diesel- 2 door coupe.

__________________
1982 240D 4spd, 327,000mi

KevRC4130,

IF, you can find a "Cherry" W123 with the 3.0 liter Turbodiesel ,You're GOLDEN!

I love the 240D , But on the Highway @ 80MPH the Noise is disconcerting.

The 1985 version of the W123 300D is a TANK! (Longevity)

__________________
'84 300SD sold
124.128

Ok, cool, that all makes sense. Do you happen to have HP figures for each engine?

Since neither are turbo, is the non-turbo 300D a legitimate upgrade over the 240D? Obviously a lot of people have something to say about the 240D's unbearable slowness, so does the non-turbo 300D have enough power to be noticeably more usable?

Thanks everyone!

I do not know what it is like in other countries but from reading the Forums here in the US the 123 Diesels seem the have better parts availability.

__________________
84 300D, 82 Volvo 244Gl Diesel

The W115 240D 74-76 had 65 HP.
The W115 300D 75-76 had 80 HP.

I drive my 76 300D everyday and it keeps up with traffic just fine, even with the AC on. 0-60 is about 22 seconds On the highway I can cruise along nicely at 70-75.

The W123 240D had 72 HP.
The W123 NA 300D had 80 HP. The later ones had 88 HP.
The W123 Turbo 300D had about 123 HP.

__________________
1985 300TD Turbo Euro-wagon
1979 280CE 225,200 miles
1985 300D Turbo 264,000 miles
1976 240D 190,000 miles
1979 300TD 220,000

GONE but not forgotten
1976 300D 195,300 miles
1983 300D Turbo 175,000 miles

http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg

I understood the 240D to have 62hp (MB Dimension '74 catalog) and the 300D 77hp.

__________________
1974 240D 3.0L 4(M) - 250K -OM617.910 + 300D FW + Rajay turbo power!
1977 6.9 3(A) - 84k