One thing I'm wondering is how standardized the computers are. My mentor once told me that ECM's, PCM's and OBDII computers were all basically the same among most of the models. I wonder if in order to sell cars in the USA the Europeans have to use a standardized OBDII computer. FYI, a single scan tool will generally scan a number of different type cars, foreign and domestic, which indicates to me there is some standardization. Maybe some disgruntled Mercedes employee will step in here and spill the beans and then my spoiler won't tell on me until I hit 80 mph. Ha