i do have a 2011 2.5 roadster here with a defective VMS. fortunately i had a working VMS from a 2009 2.0 junker with the same SW, so the roadster is running again BUT with the wrong VN in the VMS this actually doesn't sound too bad as the car is running perfect with the other VMS but is getting some errors permanently like "suspicious milage on odo" etc. before you recommend me to consult my friendly SeC: they CANNOT help (!) does anybody know a solution for this ? please pm, THANKS !