CITROËN C4 PICASSO Handbook page 517

Audio and Telematics
Frequently asked questions
The table below gives answers to the most frequently asked questions on your audio system.
QUESTION
With the engine off, the
audio system switches off
after a few minutes of use.
The message "the audio
system is overheated"
appears on the display.
Radio
QUESTION
There is a difference in
sound quality between the
different audio sources
(radio, CD...).
166
ANSWER
When the engine is switched off, the audio system operating time
depends on the state of charge of the battery.
The switch-off is normal: the audio equipment switches to economy
mode and switches off to prevent discharging of the vehicle's
battery.
In order to protect the installation if the surrounding temperature
is too high, the audio system switches to an automatic thermal
protection mode leading to a reduction in volume or CD play
stopping.
ANSWER
For optimum sound quality, the audio settings (Volume, Bass,
Treble, Ambience and Loudness) can be adapted to the different
sound sources, which may result in audible differences when
changing source (radio, CD...).
SOLUTION
Start the vehicle's engine to increase the battery
charge.
Switch the audio system off for a few minutes to
allow the system to cool.
SOLUTION
Check that the audio settings (Volume, Bass,
Treble, Ambience and Loudness) are adapted to
the sources listened to. It is advisable to set the
audio functions (Bass, Treble, Front-Rear Balance
and 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.