From inside (document excerpt):
Audio 50 Operator’s Manual Mercedes-Benz Congratulations on your new Mercedes-Benz car radio. Please familiarise yourself with your car radio and read the operating manual before driving off. This will ensure your complete enjoyment of your car radio and prevent danger to yourself and to others. Depending on the equipment version and your vehicle model, the following components may be installed: CD changer*, telephone*, LINGUATRONIC* and sound system*.
Car Audio User Manual Free Download. Operator’s Audio Sound Manual Guide. Free Auto Download PDF.
The operating manual also contains descriptions of these functions. Therefore, it is possible that some of the descriptions contained herein do not apply to your radio. Mercedes-Benz constantly update their car radios to the latest technological standards and therefore retain the right to implement changes in design, equipment and technology. Thus, no liability can be derived from the statements, illustrations and descriptions contained in this operating manual. For further questions, please contact your Mercedes-Benz service centre. This operating manual is a component part of your vehicle. It should therefore always be kept in your vehicle and should be passed on to the new owner, if the car is sold. The Technical Editors of DaimlerChrysler AG wish you “Good driving “. Contents Introduction . Concept of this manual . Symbols . Operating safety . 3 3 4 5 At a glance 7 Radio operating elements . 8 Cassette operating elements 10 CD operating elements 12 Telephone operating elements . 14 Multifunction steering wheel 16 Introduction Menu system Menu functions and submenus. Quitting submenus . General operation Switching on/off Volume . Automatic volume control . Balance and Fader Bass and Treble . Additional sound functions* 17 18 19 19 20 20 20 21 21 22 22 Audio Audio main menu . Calling up Audio main menu Changing audio source . Mute function Radio mode . FM or AM main menu . Switching wavebands . Selecting stations .