Yeah it's safe, navteq make the new discs, aslong as it's meant for the X-Type, S-Type and XJ, it'll work.
It'll update your touchscreen to a black background with white Jaguar logo, get rid of 3d view and allow you to input a direction on the move.
It'll update your touchscreen to a black background with white Jaguar logo, get rid of 3d view and allow you to input a direction on the move.