Hello my friends

My name is Nuno and 'm from Portugal, i have one friend with a Mercedes C220 from 06-2006 with this radio - http://i240.photobucket.com/albums/f...D-2_0-R230.jpg

i dont understand anything of gps but i need help to help my friend could someone tell me what i have to download to update her gps please???
I dont know if this helps but when we turn on gps e gave us the next info - Activando la navegacion P.F Observa el codigo circulacion.

Tkns for all yor attention friends

Best Regards from Portugal