The latest generation of COMAND Online (optional extra) includes the use of Remote Services and Live Traffic Information. The latter service uses real-time traffic data for dynamic route guidance with more accurate arrival times. The information appears in high-resolution form and in colour on a 20.3 cm (8-inch) display. The display is simple and intuitive to use. Rapid hard-disc navigation with realistic topographical map display leads the driver to their destination in a relaxed way. In combination with an appropriate mobile phone it is possible to call up websites while the car is at a standstill and freely use Mercedes-Benz Apps such as POI search, weather or internet radio during the journey. Entertainment as requested comes courtesy of a DVD player and radio plus interfaces for connecting external devices. Further highlights of COMAND Online are the voice-operated control system LINGUATRONIC, a Bluetooth^® interface with hands-free function, a reading function for text message plus music transmission via audio streaming.

Entertainment, information and communication are also offered by the Audio 20 USB (standard) and Audio 20 CD (optional extra). The equipment features include internet capability, radio, twin tuner, two USB connections and networking with mobile devices via Bluetooth^®. As the name suggests, the Audio 20 CD also boasts a CD drive. From external audio devices MP3 and WMA as well as WAV and AAC files can be played via a USB connection – or in the case of the Audio 20 CD from a CD. The Cover Art function displays album covers in the audio menu.

With a Bluetooth^®-capable mobile phone with a data option it is possible to call up websites while the car is at a standstill. During the journey, too, the Mercedes-Benz Apps "Mercedes-Benz Radio" and "Service Mercedes-Benz" (for Germany only) can be used freely. The Bluetooth^® interface has a hands-free function and audio streaming for playing music files. It also supports address transfer from the mobile phone to the head unit, as long as this supports the PBAP/Phonebook Access Profile function. Bluetooth^® telephony now features wideband speech. This technology transmits speech data with almost double the frequency spectrum. This results in a clearly perceptible improvement in call quality, together with enhanced intelligibility. This function must be supported by the mobile phone provider.

Audio 20 CD is additionally available in a version with pre-installation for Garmin^® MAP PILOT. The pre-installation comprises a GPS receiver, dead reckoning (compound navigation) and aerials. The Audio 20 CD can thus simply and inexpensively be upgraded to become a fully-fledged navigation system.

For the Garmin^® MAP PILOT transfers all the advantages of a Garmin^® navigation system to the Audio 20 CD. All the driver needs to do for route guidance is to insert an SD card with navigation software and map data.

With twelve loudspeakers, including a woofer and a 9-channel DSP amplifier, the 450-watt Harman Kardon^® Logic 7^® surround sound system can on request ensure a rich sound experience in stereo, in DTS and Dolby Digital 5.1 format. The surround sound system is available in conjunction with Audio 20 CD or COMAND Online.