2010 Mercedes C-Class Owner's Manual - Page 172

170 X Audio system Activate Bluetooth® connection on the mobile phone (see mobile phone operating instructions). X Press button % on the audio control unit to call up the telephone mode. Searching for a mobile phone X Controls in detail i On certain mobile phones, not only you will have to activate the Bluetooth® function but in addition, your own device must be made "visible" for other devices. Each Bluetooth® device has a Bluetooth® device name. It is recommended to give your mobile phone a personal name, by which you can clearly recognize your mobile phone. i If the Bluetooth® function on the audio system is disabled, the message Bluetooth not activated in system settings appears. X % Q Tel Q Bluetooth Phones Q Update. The audio system searches for up to 10 suitable Bluetooth® telephones within range and enters them into the telephone list. Authorized Bluetooth® telephones will be identified by a telephone-symbol L in front of the list entry once the telephone list has been updated. The symbol will be grayed out if the authorized mobile phone is not located within the Bluetooth® range. i The duration of the search procedure depends on the number and type of Bluetooth® telephones. The search may take a few minutes. i If the telephone list is already full (15 entries), you must de-authorize one of the authorized devices (Y page 172), and start the search again. Otherwise a new device you are looking for will not appear in the list. If the audio system does not find your mobile phone, external authorization may be necessary (Y page 171). Authorizing a Bluetooth® device X Select the desired unauthorized device from the telephone list by pushing the audio controller. or X Select Options Q Authorize. The input menu for the passcode appears. Activate connection on the audio system (Y page 147). X i Q System Q Activate Bluetooth. You have activated or deactivated Bluetooth®. A checkmark appears when Bluetooth® is activated. Bluetooth® Registering a mobile phone (authorizing) When you use your mobile phone in conjunction with the audio system for the first time, you must register (authorize) it. It is possible to register up to 15 mobile phones. The connection is always established to the last activated mobile phones in signal range. When you authorize a new mobile phone, it is activated automatically. You can switch between the authorized mobile phones.