The new, standard-fit COMAND multimedia system on board the SL groups together entertainment and navigation functions in one central unit. Optional navigation functions and films are shown at eye level on the generously-dimensioned 6.5-inch colour display. It is even possible to watch television here if the optional TV receiver is specified. The 6-disc CD/DVD changer for audio or video is within easy reach, while an optionally available media Interface allows COMAND to connect to any USB data source, an iPod or AUX-IN – for example, to play music or videos from an external hard drive.

The optionally available COMAND APS system features an integral hard drive containing the navigation software - thus leaving the CD drive free for alternative uses - and 4 GB of memory for audio files in MP3 or WMA format. And thanks to LINGUATRONIC, COMAND APS hears and obeys voice commands, with which the radio and the telephone can be controlled.