See also:

Notes on audio AUX mode
You can connect an external audio source (AUX) to COMAND. The socket for this is located in the glove box. If COMAND is equipped with a Media Interface, external audio sources are connected u ...

Problems with the SmartKey
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General notes
WARNING All categories of messages contain important information which should be taken note of and, where a malfunction is indicated, addressed as soon as possible at an authorized Mercedes- ...