[JimD]

I've read what DaZuc said but I've never seen a post where somebody successfully did it. I have the digital which reads true mph and I ignore the stupid regular speedometer. This is one really poor decision BMW made in the design. I've read the excuse about German traffic laws but I don't live in Germany and I don't need a Mommy to tell me what to do. BMW could easily make this codable and has decided to make it very difficult so we don't do it. No other reasonable explanation. In the U. S., the cars should come with the speedometer reading accurately. They cost enough for a technician to spend a couple minutes setting them up properly.