With the optional COMAND APS multimedia system you can operate many functions of the GLK centrally and with great ease - intuitively via the COMAND controller in the armrest. Turning and sliding the controller calls up the operating system menus, pressing confirms the selected function. Its features include, among other things, radio and CD player, DVD player, TV tuner and hard-disk navigation. And the image from the optional reversing camera with static assistance lines is shown in the COMAND APS display, too.

Operating the system is even easier with the LINGUATRONIC voice-operated control system (included in the option of Audio 50 APS with DVD changer, as well as in COMAND APS): so it is possible to control, for instance, navigation, audio systems and phone calls.