hi guys, I'm a new member too and I have a similar question bout compatibility of these engines - m104 with 2.8 and 3.2. I have a 2.8 version on my E-class, but it's about to die soon and I'm willing to switch it to new one. 2.8 seems to be much more rare than 3.2, so I found it better to switch my 2.8 with 3.2. so, the question is if it is possible without complications? I heard that AT is the same in both versions.
thanks for replying!