found a 240d with a 5 speed,not 4 speed,beauty too,less than 150,000 miles on it.
Trying to figure out want five speed used,and revs at 60 mph

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1999 w140, quit voting to old, and to old to fight, a god damned veteran

There are loads of online calculators that can help with this (if you can't do the calculations yourself) but you need to know the gearbox type to find out the gear ratios and also figure out which final drive ratio is fitted.

If it is a factory 5 speed then there's a chance Mercedes fitted a lower final drive ratio differential - remember tyre size is also important and that real world differences might make things ever so slightly different from the numbers

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1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!

4th gear ratio is 1:1, 5th gear ratio is 0.81:1. If you don’t change the diff ratio, 5th gear rpm should be 81% of 4th gear rpm for the same road speed.

Someone please check the math.

Sixto
98 E320s sedan and wagon
02 C320 wagon

If I remember correctly not all of the five speed boxes have the same "overdrive" gearing: It depends on the gearbox type

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1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!

If you decide against this car drop me a note. All the 240ds should have had a five speed. At least in my opinion. It still will rev higher than a turbo 300d for the given comparable highway speed.

A change of the rear end to the one used in the natural aspired 300ds would additionally help somewhat though. I live in an area where four speeds are adequate for ninety percent of the local driving.

On long trips I just take another car. Even though the 240ds can do it. I think that car is ideal for an area not grossly overpopulated and towns are not too far apart. For the vast majority of people their use of cars primarily is on shorter distance runs anyways..

These are just my opinions though.

I believe all the five speed 240s used the same rear end as the four speeds. I'd leave it alone if it has a five speed. Sounds like a nice euro car. pretty low miles too.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.