CITROEN C4 Handbook page 252

MyCitroën Drive
The system reads a variety of data (folder, title,
artist, etc.). This can take from a few seconds to
a few minutes.
This is perfectly normal.
Some characters in information about the
currently playing media may not be displayed
correctly.
The audio system is unable to process certain
types of character.
► Use standard characters to name tracks and
folders.
Playback of streaming files does not start.
The connected device does not automatically
launch playback.
► Start playback from the device.
Track names and playing times are not
displayed on the audio streaming screen.
The Bluetooth profile does not allow the transfer
of this information.
Telephone
I am unable to connect my Bluetooth
telephone.
The telephone's Bluetooth function may be
switched off or the device may not be visible.
► Check that the telephone has Bluetooth
switched on.
► Check in the telephone settings that it is
"visible to all".
► Deactivate then reactivate the telephone's
Bluetooth function.
The Bluetooth telephone is not compatible with
the system.
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► You can check the compatibility of the
telephone on the Brand's website (services).
Android Auto and/or CarPlay do not work.
Android Auto and CarPlay may not activate if the
USB cables are of poor quality.
► Use genuine USB cables to ensure
compatibility.
Android Auto and/or CarPlay do not work.
Android Auto and CarPlay are not available in all
countries.
► Check the list of supported countries via
these websites: Google Android Auto or Apple.
The volume of the telephone connected via
Bluetooth is too low.
The volume depends on both the system and the
telephone.
► Increase the volume of the audio system, to
maximum if required, and increase the volume of
the telephone if necessary.
Ambient noise affects the quality of the
telephone call.
► Reduce ambient noise (e.g. close the
windows, reduce ventilation, slow down).
Some contacts are duplicated in the list.
The options for synchronising contacts are:
synchronise the contacts on the SIM card, the
contacts on the telephone, or both. When both
synchronisations are selected, some contacts
may be duplicated.
► Select "Display SIM card contacts" or
"Display telephone contacts".
The contacts are not listed in alphabetical
order.
Some telephones offer display options.
Depending on the settings chosen, contacts can
be transferred in a specific order.
► Modify the telephone directory display
settings.
The system is not receiving SMS text
messages.
Bluetooth mode does not allow SMS text
messages to be sent to the system.
Settings
When the treble and bass settings are
changed, the ambience is deselected.
When the ambience is changed, the treble
and bass settings are reset.
Selecting an ambience imposes the treble and
bass settings, and vice versa.
► Modify the treble and bass or ambience
settings to obtain the desired musical ambience.
When the balance settings are changed, the
distribution is deselected.
When the distribution setting is changed, the
balance settings are deselected.
Selecting a distribution setting imposes the
balance settings, and vice versa.
► Modify the balance setting or the distribution
setting to obtain the desired sound quality.
There is a difference in sound quality
between audio sources.
To allow for optimal listening quality, the sound
settings can be tailored to different audio
sources, which can generate audible differences
when changing source.