An obvious question, but do you have the manual for the audio/nav system? I did see a reference for an EU car that showed the Aux, USB and SD ports in the center console.... 
An obvious question, but do you have the manual for the audio/nav system? I did see a reference for an EU car that showed the Aux, USB and SD ports in the center console....![]()
Inserting an SD card
Looks like a different setup from the US car....,.. Insert the SD card into the appropriate
slot in the centre console and press until
it engages.
,.. Switch on the device.
The SD card will be recognised by the
smart media system and will be ready for
operation.
Did you ever find it? I'm having this same problem and now I've lost all nav data.I wanted to update my navigation system but couldn’t find the SD Card. After having a warranty issue repaired, I asked the Smart Service Manager at the MB dealership, where the SD card was located and he couldn’t find it either. He hit the button to remove the card but we still couldn’t locate it and I temporarily lost all navigation. Does anyone know where the SD card is located and how to access it? Online videos indicate between the seats or under the driver’s armrest but it is not in either of those locations.
Did you ever find it? I'm having this same problem and now I've lost all nav data.