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  #1  
Old 04-12-2005, 08:51 PM
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240 D: Automatic gearbox vs 4 speed

Has anyone driven an automatic and a 4 speed. I've heard the automatic is very, very slow compared to the manual. I had a 1983 with the 4 speed and I found it quite adequate. I'm looking at buying an automatic on ebay which seems quite nice.

Also when I drove my 240 D on the interstate at 85 mphs it sounded like it was reved out so high that it wanted to come apart, of course it never did. It did have over 250k miles on it when it sounded like that. So my question is does the automatic equipped car sound the same?

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  #2  
Old 04-12-2005, 09:18 PM
Diesel forever
 
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I drive a 1982 240D automatic, and indeed it won't give you whiplash with its acceleration. However, I find it quite reasonable to drive (except when I've got the A/C on in the summer, which robs too many precious HP). The later W123 series had slightly higher output engines, which helps. I find that using the stickshift to manually shift gears in some situations helps. But indeed, having driven a manual 240D last summer made me realize how much peppier the manual is.
I've never had my 240D at 85MPH (I tend to adhere to the speed limits), so can't help you out there. That's probably close to the max speed of the car, so no wonder it sounded like you were pushing it.
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Old 04-12-2005, 10:04 PM
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Well, I've had an automatic and a manual in the same car so I guess I can add to this discussion. Bought my 240D new with an automatic transmission. When the transmission conked out on me at 293,000 miles, I converted it to a manual. Best thing I ever did to the car. I like it much, much more with the manual transmission in it. It seems like it has so much more power. It really doesn't. It's just that you contrlol the shifts and the power. However, I must say that I never thought that it was dangerously slow with the automatic. You get used to it and you know what the car can and cannot do. Horsepower is somehting like 67 and the top speed is about 86mph.

Len
'83 240D 344,000 miles
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  #4  
Old 04-13-2005, 09:57 AM
LarryBible
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I have driven both and there's no comparison. I even prefer a manual 240D over an automatic, normally aspirated 300D.

Good luck,
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  #5  
Old 04-13-2005, 10:22 AM
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Quote:
Originally Posted by LarryBible
I have driven both and there's no comparison. I even prefer a manual 240D over an automatic, normally aspirated 300D.

Good luck,
Ditto.

I have two customers with 300D NA's and our 240 4-speed LITERALLY will run circles around them.

Actually, the 240, the way it is now tuned, runs circles around most peoples TURBO 300D's when I first get them in (in typical out-of-tune shape.)
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Old 04-13-2005, 11:02 AM
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Quote:
Originally Posted by TomJ
Ditto.

I have two customers with 300D NA's and our 240 4-speed LITERALLY will run circles around them.

Actually, the 240, the way it is now tuned, runs circles around most peoples TURBO 300D's when I first get them in (in typical out-of-tune shape.)

Tom,

Would you have a list of tune-up tips for the 240D?

Thanks,

Jeff
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  #7  
Old 04-13-2005, 11:20 AM
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Quote:
Originally Posted by 79-240d-project
Tom,

Would you have a list of tune-up tips for the 240D?

Thanks,

Jeff
You mean before or after adding a turbo? ;-)

Lots of tips right here on this forum.
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Old 04-13-2005, 11:42 AM
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Now the turbo would explain a lot!

Hey, I noticed you also have the Maple Yellow 240D. I am in the process of rubbbing mine out to get rid of 26 years of oxidation. It is shining up real nice!
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  #9  
Old 04-13-2005, 11:55 AM
LarryBible
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Making a 240D run at its best involves; clean fuel filters, clean accurately set injectors(this is done by the injection service guy in his clean room,) properly set valves, IP in good shape and probably most important injection timing properly set.

All this is assuming that you are working with an engine with good compression and a clean air filter.

One of the reasons for my comment about a manual 240D being peppier is that there is lots of torque that is lost with an automatic transmission.

Good luck,
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  #10  
Old 04-13-2005, 12:19 PM
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I'm running my automatic 240D with a turbo engine, and it's plenty peppy!

Both of Tom's cars are quick too, but we haven't lined 'em up.

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