Hi guys, I would just like to find out if anyone perhaps knows the compatibility between the b4204s and the b4204s3? I have a 06/07 c30 2.0 that threw a rod and I need to swap the motor. I also have a accident damaged first Gen v40 that still runs and wanted to know how that motor would work in the c30? From what it looks like the front left mount is in the same place but mounting points are different and looks like I would have to do away with the front lower mount on the b4204s, would the harness work from the c30 or what would be my plan of action?