I did the exact opposite and bought mine in Germany then brought it back to the states. My 09 doesn't have a disc like my 06. BMW had to program it into the hard drive. Am guessing you will have to do the same. Good luck and enjoy Switzerland.
2009 Alpine White DCT E92 M3 - Tint, Hood M Stripes, Eibach Springs,
Gloss Black Rims, Vorsteiner Lip, BMW Performance Trunk Spoiler
Fabspeed x-pipe & Megan Race Exhaust
2006 Imola Red 6-speed E46 M3 - Retired