Did Mercedes build different engines for the 240 Diesel..One engine for the automatic and a different engine for the manual transmission...Will the same engine (4 cylinder) work in either application and what is different....thanks...Jim

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James A. Harris

Same engine will bolt up to the manual or automatic tranny. I'm pretty certain you will want to keep the bell housing for whichever tranny you are putting in.
The five cylinder (617) is the same too.

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Jim

One thing you should check - some manufacturers (not necessarily Mercedes) build different engines for manual or automatic. The difference is - if the flywheel end of the crank is machined to accept the pilot bushing/bearing for the manual tranny.

Happy Motoring, Mark

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DrDKW

MB has a different part number for the crankshaft in auto versus man trans applications.

Aside from the pilot bearing issue the crankshaft is balanced with the flywheel as a unit on those motors. Look in your manual for the technique to balance a new flywheel to the old one. This would cause me no end to worry.

BUT, I have done it at least 2-3 times with no known difficulties. The pilot bearing works in the auto crank and if there were balance problems they weren't noticable over the rest of the noise/vibration.

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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician