whats a different manual trany i could drop into my 300d to replace the automatic?

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84 300sd 2.47 dif 360k
26 mpg needs lots of love
given to me in pitty

89 civic hatchback auto 140k
33mpgs soon to be low to mid 40's
been in the family since mile 1

85 300d with unknown knock. driven over 30k with knock and still going. sold for $800

I'm doing this job right now. My situation is a bit different as mine is going in a race-only truck behind a '84 Diesel from 300SD (OM617 engine).

There are several ways to do this:

Bentsen's makes an adaptor to allow a GM trans (manual or automatic) to bolt in behind a 616 (4 cylinder) or OM617 (5 cylinder) M-B Diesel. The kit's under $800 but you still need to find a shifter, clutch actuation system (linkage, hydraulic clutch system, etc), and a speedo drive - you didn't give the year of your car but it may have an electronic speedo.

OR -

Find a 300 and get the whole shootin' match. The trouble here is that they are scarce as hen's teeth and therefore EXPENSIVE. Probably the most straighforward method but you still need to transfer the pedal set AND the brake master as the clutch master uses the brake resevoiur.

OR -

Find a 240D with a manual. This only gets you a 4 speed (no overdrive gear) but provides some of solutions you need. Again, get the shifter and pedal set along with the brake master. You might have the issues with the speedo drive. This is the method I'm using and my 240D ('82) has a mechanical speedo as I suspect they all do - the 300 SD ('84) had an electronic speedo but in my case it's no concern.

This can, of course, be done but it isn't an easy or simple undertaking.

Dan

If you are staying with the MB Transmission, then the most readily available Trans would be is one from a 240D. these show up in the PNP`s quite often.
You will need the Transmission, Shift Rods, Shifter, FW, 240D automatic Trans X-Mount, 240D front section of the DL, ( this will have to be cut down about 4" and rewelded and balanced) Peddle assy, I would recommend a new Clutch Disc, PP, Release Bearing, Pilot Bearing, and master Cylinder.

There is the 5-spd with the OD but was only sold in Europe. You could luck out and find a Grey Market car brought over here. I recently saw 3 on CL in the SF Bay Area. or if you poke around in the PNP`s you eventually might find one, along with the elusive 671 38# FW.

It really isn`t all that difficult to do the swap, it is pretty much plug and play, do a search of the swap and there is a ton of info on the subject.

240D Automatic Transmission Swap To Manual


Now if you are really industrious, you could modify a W201 5-spd to work in a W123.

How to adapt a W201 5-speed to OM616/OM617 applications

Charlie

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there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works