The first thing you will need to do is receive a COMAND update, as the 2009+ maps will not load until your COMAND is updated.
Then you need to enter the engineering menu, by holding "hang up + 1 + #" with your key in the ON position. Inside there, you need to navigate to the software parameters menu, and look for REGION settings. hange from N America (1) to ECE (2). Turn off the car and allow appx 15 minutes for the changes to take effect. When you turn your car back on, and the changes have taken effect, you should have TMC in your radio, as well as being able to tune to even decimal frequencies i.e. 100.0
Once your COMAND is up to date, and the region is set to ECE, then you can insert the Navigation DVD and begin to update. If you receive a message that the disc is invalid, you did not burn the image using an appropriate program, try using ImgBurn.