M272 DE Swap
 

Hey all. I have an E350 in my neighborhood for sale with the dreaded camshaft adjuster failure. Dropping in a new engine is less of a headache and I'd be way up because the current owner will let it go for $1000 because he's moving out of state and wants it gone.

From what I understand the M272 DE in the SLK made more power due to a different intake manifold and direct injection. If I swap the ECU from the SLK along with the engine, do you think it'd link up plug and play? Or does the SLK have a different fuel pump for the direct injection?

I've attached a link to the engine in question.
https://www.ebay.com/itm/2009-MERCEDES-SLK350-Engine-65K-Warranty-Tested-OEM/132830453847?hash=item1eed4fe057:g:2IoAAOSwHI5bzzg f

The ECU is coded to the electronic ignition switch, instrument cluster, TCU and shifter, among many other things. You can't mix and match these components.

Bummer. I figured I wasn't thinking of all the variables. I thought it would be cool to drop on of these direct injected motors in for an increase of 30hp.

Even if it was interchangable it's cheaper and easier to sell the 350 and buy an E550 with 382hp.