Hello everyone, i'm new on the forum here, very nice to meet you all! Righto my problem is, i'm thinking of changing the engine in my car and having a bit of a dilemma with ECU's. I have a W124 with an M104.992 engine. I wish to install a 3.6 M104 AMG out of a W210. The issue lies with, are the ECU's the same? Would the 3.6 ECU plug into my W124, or would i have to use my W124 ECU and copy the map from the 3.6 to my current 3.2? Also as i have to use the engine wiring from the W210 with the engine install, would that plug into my W124 (if i can't use the 3.2 ECU)? Just a bit confused as to what I actually need to do to get a 3.6 in my car. Thank you very much for your time to read, and all answers are much appreciated! Thanks!