2010 Citroen C4 CD player

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sound quality between the different audio sources (radio, CD...).
Check that the audio settings (Volume, Bass, Treble, Ambience, Loudness) are adapted to the sources listened to. It is advisable to set the AUDIO functions (Bass, Treble, Front-Rear Balance, Left-Right Balance) to the middle position, select the Linear musical ambience and set the loudness correction to the "Active" position in CD mode or to the "Inactive" position in radio mode.
For optimum sound quality, the audio settings (Volume, Bass, Treble, Ambience, Loudness) can be adapted to the different sound sources, which may result in audible differences when changing source (radio, CD...).
The CD is ejected automatically or is not played by the player.
- Check that the CD is inserted in the player the right way up. - Check the condition of the CD: the CD cannot be played if it is too damaged. - Check the content in the case of a recorded CD: consult the advice in the Audio section. - The audio equipment's CD player does not play DVDs. - Because of their quality level, certain writeable CDs will not be played by the audio system.
The CD is inserted upside down, is unplayable, doe s not contain any audio data or contains an audio format which the player cannot play.
The CD is protected by an anti-pirating protection system which is not recognised by the audio equipment.
The CD player sound is poor. Insert good quality CDs and store them in suitable conditions. The CD used is scratched or of poor quality.
The audio equipment settings (bass, treble, ambien ces) are unsuitable. Set the treble or bass level to 0, without selecting an ambience.
QUESTION SOLUTION ANSWER
FREQUENTLY ASKED QUESTIONS

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AUDIO
Insert circular compact discs only. Some anti-pirating systems, on original discs or CDs copied using a personal recorder, may cause faults which are no re fl ection on the quality of the original player. Without pressing the EJECT button, insert a CD in the player, play begins automatically.
To play a disc which has already been inserted, press the SOURCE button several times in succession and select CD.
Press and hold one of the buttons for fast forward or backward.
Insert an MP3 compilation in the player. The audio equipment searches for all of the music tracks, which may take anything between a few seconds and several ten s of seconds, before play begins.
On a single disc, the CD player can read up to 255 MP3 fi les spread over 8 directory levels. However, it is advisable to keep to a limit of two levels to reduce the access time before the CD is played. While the CD is being played, the directory fl ow chart is not followed. All of the fi les are displayed on a single level.
To play a disc which has already been inserted, press the SOURCE button several times in succession and select CD.
Press and hold one of the buttons for fast forward or backward play.
CD
PLAYING A CD
MP3 CD
PLAYING AN MP3 COMPILATION
Press one of the buttons to select a track on the CD.
Press the LIST REFRESH button to display the list of tracks on the CD.
Press one of the buttons to select a track on the CD.
Press the LIST REFRESH button to display the list of directories of the MP3 compilation.

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The controls are displayed and managed via the portable equipment.
First adjust the volume of your portable equipment.
Then adjust the volume of your audio equipment.
The auxiliary socket, JACK or RCA, permits the con nection of portable equipment (MP3 player...).
Connect the portable equipment (MP3 player…) to the JACK socket or to the audio sockets (white and red, RCA type) using a suitable cable (not supplied).
Press the SOURCE button several times in succession and select AUX.
USING THE AUXILIARY SOCKET (AUX)
JACK SOCKET OR RCA SOCKET (according to vehicle)
ADJUSTING THE VOLUME OF
THE AUXILIARY SOURCE
Do not connect a single piece of equipment via the USB port and the JACK socket at the same time.
USB BOX

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There is a difference in sound quality between the different audio sources (radio, CD...).
Check that the audio settings (Volume, Bass, Treble, Ambience, Loudness) are adapted to the sources listened to. It is advisable to set the AUDIO functions (Bass, Treble, Front-Rear Balance, Left-Right Balance) to the middle position, select the musical ambience "None" and set the loudness correction to the "Active" position in CD mode or to the "Inactive" position in radio mode.
For optimum sound quality, the audio settings (Volume, Bass, Treble, Ambience, Loudness) can be adapted to the different sound sources, which may result in audible differences when changing source (radio, CD...).
The CD is ejected automatically or is not played by the player.
- Check that the CD is inserted in the playerthe right way up. - Check the condition of the CD: the CD cannot be played if it is too damaged. - Check the content in the case of a recorded CD: consult the advice in the "Audio" section. - The audio equipment's CD player does not play DVDs. - Due to their quality level, certain writeable CDs will not be played by the audio system.
The CD is inserted upside down, is unplayable, doe s not contain any audio data or contains an audio format which the player cannot play.
The CD is protected by an anti-pirating protection system which is not recognised by the audio equipment.
The message "USB peripheral error" is displayed on the screen.
Recharge the battery of the peripheral device. The Bluetooth connection is cut. The battery of the peripheral may not be suffi ciently charged.
The USB memory stick is not recognised. The memory stick may be corrupt. Reformat the memory stick.
QUESTION SOLUTION ANSWER
FREQUENTLY ASKED QUESTIONS
The CD player sound is poor. The CD used is scratched or of poor quality. Insert good quality CDs and store them in suitable conditions.
The audio equipment settings (bass, treble, ambien ces) are unsuitable. Set the treble or bass level to 0, without selecting an ambience.