OM612 swap - Page 2 - PeachParts Mercedes-Benz Forum

pawoSD · #16 08-25-2008, 09:39 AM

If you can obtain the original computer stuff from a sprinter it may not be all that difficult.....I am sure harder swaps than that have been done. I'd never want to try though.

Oldbeaver · #17 11-20-2009, 05:03 PM

Hello,

I want to do exactly the same. Looking for such an engine for my 300E.

Think it will be a nice improvement, plus economy.

Where do you find them at 3000 bucks?

What do you think you will do to get the computer?

OldBeaver

Quote:

Originally Posted by invol

Hey all, I have a simple question that I'm sure will have a complex answer. Here goes:

Do any of you know what it would take to put this:

OM612 5 cylinder 2.7L engine

into this:

190D 2.5 turbo?

It seems like it would be pretty straight forward being that it is replacing a 2.5 diesel I-5 with a 2.7 diesel I-5. The newer engine has computer control, but the fuel computer seems like it could be easily retained / heatshielded inside the engine compartment. The engine came out of a Sprinter van, but I know it was also put into Euro C & E class sedans, so engine-height issues shouldn't happen. Does anyone know if bolt patterns for transmissions / flywheels have changed, on this basically-an-updated version (CDI and DOHC, nice!) of the OM602? The engine is selling for $3000, which seems like a bargain for a CDI Mercedes engine. As a point of reference, I see them all the time on fleabay for roughly the same price, so this isn't a lowball offer.

I don't know if I'm the only one on here that has thought of this, but it could be a worthwhile upgrade for anyone who has a 5cyl. W201 or W124. Plus 154HP and 243ft-lbs. of torque sounds like fun.

Oldbeaver · #18 11-22-2009, 10:20 AM

Alastair,

Interesting point of view that of yours. To be taken into consideration, I think.

It is my case too: I am also seeking a OM 612 diesel engine to swap for my present mechanical diesel.

The only way to do that, in my opinion, is to get a used engine with all of its associated electronics, AND a manual as for install those sensors and the computer properly. There is an opportunity for some experienced mechanic to set up such a manual or to offer the service.

Getting the computer and sensors is possible (cheap) in a dissasembling yard, i.e. from a crashed vehicle, so they are probably working, provided they are in good shape at sight.

The question is that these 611, 612 or 651 engines are a lot more efficient than the ones you mentioned. Tha´s why many dream of them.

Instead of getting out my present mechanic engine to put a OM 612 or such on it´s place, I would to do that in another vehicle, one that I don´t need to use.

OldBeaver

Quote:

Originally Posted by Alastair

Do you REALLY want to remove your nice reliable mechanical fuel systemed OM-602, to put in an Unreliable Common-Rail Direct-Injection diesel that is known to have issues with its fuel system, Particularly with the very expensive electronically controlled injectors....?

Added to that, You'll need the fuel-management specifically for the OM-612,--Nothing else will do the job....

In my book, its really a non starter from the beginning....

Better bet would be an OM 603 turbo or even an OM606 Turbo Much easier installation job, and Infinately more reliable!

Oldbeaver · #19 11-27-2009, 09:31 AM

Despite the fact it may be difficult to fool the electronic system of that engine, it is a magnificent engine.

I was travelling once to Argentina crossing the Andes on a Kia Sportage TDI 4x4, only two passengers, no load. A Mercedes Sprinter passed us climbing up the road very easily and I got astonished.
It was impossible catch it up.

This is engine OM 612? It is miles away of others.

I hope you succeed with it.

Remember there is a gentleman in Germany who swapped a similar CDI engine into a 190E. He´s name is Peter Lehmann in case you don´t know him. He made the engine work. Just is case it is of help to you.

Good luck and keep us all informed of your progress.

OldBeaver