A flickering navigation screen may suggest that your iDrive system is failing. We are replacing this Car Communication Computer (CCC) for a E90 BMW with other such symptoms such as no audio from sound system, iDrive knob spins freely or menu and voice commands stops working. After the CCC is replaced we'll be programming the control module with the latest BMW software.
Car Communication Computer (CCC) vs. Car Information Computer (CIC)
CCC made its debut in 2004 released on the E60 chassis. The DVD drive cannot play movies or support DVD in motion due to it's processing limitations. It can be identified with the iDrive symbol from the menu screen. The navigation maps are updated by replacing the DVD in the navigation drive with the latest releases.
CCC iDrive System
CIC made it's debut in 2009 on the F01/F02 7-series and is a major update to the iDrive system, replacing the display, computer and controller. The screen has a higher resolution and is more responsive. The DVD drive can support movie playback and DVD in motion.
CIC iDrive System
The navigation maps are loaded on a internal HDD and roadmaps can be updated with a USB stick with the FSC activation code.