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mercedes r calss question

579 views 3 replies 2 participants last post by  Diesel Benz 
#1 ·
Hi everyone.
I have` a Q about my rcalss
i bought r320 cdi but engine it's dead so i need to now couse i found engine from ML-GL 320 cdi,i wanna know that those engines are the same and can i mount them to my r class.
I checked engine codes my R class has 642-950 the ML-GL has 642-640
all spec are the same.

please respond ASAP thank you.
 
#4 ·
What made the pistons fail?

Your first post had a typo, there is no 642.640 engine. The 642.940 and 642.950 must be mostly the same engine. I'd suggest you to browse EPC for the two and compare which pars actually are different (I doubt anyone is willing to have that effort on behalf of you, someone might know the difference by heart though and could help).

I guess your intention is to take the ECU from the old engine to keep it matching with the rest of the drive authorisation parts? You should code it for the new parts though (injector classification etc.).
 
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