See also:

Overview
The on-board computer is activated as soon as you turn the SmartKey to position 1 in the ignition lock. You can control the multifunction display and the settings in the on-board computer using ...

Switching to audio CD, audio DVD or MP3 mode
Insert a CD/DVD. The Rear Seat Entertainment System loads the inserted disc. Select Disc in the menu using the buttons on the remote control and press the button to confirm. The corresp ...

Interior
As much as I like how the CL looks from the outside, it's on the inside that Mercedes outdoes the competition: Everything you see or touch looks and feels good. If I shelled out the cash for a CL, ...