Why can phone functions not be used via
the Central Information Display (CID)?
– The mobile phone may not be config-
ured correctly, for example, as a Blue-
tooth audio device.
Connect the mobile phone with the tele-
phone or additional telephone function.
Why are no or not all telephone book en-
tries displayed or why are they incomplete?
– Transmission of the telephone book en-
tries is not yet complete.
– It is possible that only the telephone
book entries of the mobile phone or the
SIM card are transmitted.
– It may not be possible to display tele-
phone book entries with special charac-
ters.
– It may not be possible to transmit con-
tacts from social networks.
– The number of phone book entries to be
stored is too high.
– Data volume of the contact too large, for
instance due to stored information such
as memos.
Reduce the data volume of the contact.
– A mobile phone is only connected as an
audio source.
Reconfigure the mobile phone and con-
nect it with the telephone or additional
telephone function.
How can the telephone connection quality
be improved?
– Depending on mobile phone, it may be
possible to adjust the Bluetooth signal
strength on your mobile phone.
– Insert the mobile phone into the wire-
less charging tray.
– Adjust the volume of the microphone
and loudspeakers separately.
If all points listed have been checked and
the required function is still not available:
contact the hotline, an authorized service
center or another qualified service center or
repair shop.
USB connection
General information
The following mobile devices can be con-
nected to the USB port:
– Mobile phones.
– Audio devices with USB port, for in-
stance MP3 players.
– USB storage devices.
Common file systems are supported.
FAT32 and exFAT are the recommended
formats.
A connected USB device will be supplied
with charge current via the USB port if the
device supports this. Follow the maximum
charge current of the USB port.
The following uses are possible on USB
ports with data transfer:
– Exporting and importing driver profiles,
refer to page 69.
– Playing music files via USB audio.
– Playing videos via USB video.
– Loading of software updates, refer to
page 57.
Follow the following when connecting:
– Do not use force when plugging the con-
nector into the USB port.
– Use a flexible adapter cable.
– Protect the USB device against mechani-
cal damage.
– Due to the large number of USB devices
available on the market, it cannot be
guaranteed that every device is operable
on the vehicle.
– Do not expose USB devices to extreme
environmental conditions, such as very
high temperatures; refer to the operat-
ing instructions of the device.
Seite 54
AT A GLANCE General settings
54
Online Edition for Part no. 01405A7DAD4 - II/23
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