This is on a 2006 C350 with COMAND (not sure which version it would be?). Since I've had the car, whenever I play CDs the name of the album and the track don't display, it just says 'Track 1'. This is when playing the CD via the multi-changer (the single slot in COMAND has the navigation DVD in it). Any ideas? I assume it's supposed to show the album and track titles?