THIS IS THE CORRECT DISC FOR YOU IF YOU HAVE THE HIGH MK4 NAVIGATION, YOU MUST HAVE A DRIVE IN THE BOOT (INBETWWEN SEATS IN Z4), WHICH SAYS DVD ON IT AS PICTURED. IF YOU HAVE ANYTHING APART FROM WHATS DESCRIBED, THEN THIS DISC WILL NOT WORK FOR YOU, JUST INBOX ME AND I WILL SEND YOU THE CORRECT LINK!
The disc is made by an independent manufacturer, this is not the original BMW disc as they not produce maps, it uses other manufacturers for maps
DISC IS FULLY COMPATIBLE with BMW HIGH TYPE NAVIGATION