Delphi CRD2.1 and CRD3.1 in W212

[ewbelow]

Hallo All,

in the W212 MB switched teh motor management from
Motorolla CRD2.1 to Infinion CRD 3.1:

Do someone known the differences in overview?

Injectors solenoid ones look the same:

Are those ECUs compatible and interchangible ?

Can I put CRD 2.1 in 2012 w212 200 CDI and make it run?

Regards,

Eugene

[figani]

Normally crd2 should be euro 5...
Crd 3 should be euro 6...

Adblue difference...
But also other things...

[ewbelow]

I do have two w212 200CDI both are EURO5: one is 2010 and on 2.1 and other is end of 2011 and crd3.1. Maybe the 3.1 is ready for EURO6 and CRD2.1 for sure not, but the question is: can I run 2011 200 CDI with no add blue on CRD2.1.

So ad blue is clear, what are the "other things". Injectors in 200CDI are same solinoid type.