CITROEN C4 Handbook page 18

Dashboard instruments
Engine self-diagnostics system (Petrol or
Diesel)
Fixed.
A minor engine fault has been
detected.
Carry out (3).
Dynamic stability control (DSC)/Anti-slip
regulation (ASR)
Flashing.
DSC/ASR system regulation is activated
in the event of a loss of grip or trajectory.
Fixed.
The DSC/ASR system has a fault.
Carry out (3).
Emergency brake malfunction (with
electric parking brake)
Fixed, accompanied by the
message "Parking brake fault".
Emergency braking does not deliver optimal
performance.
If automatic release is not available, use manual
release or carry out (3).
Hill start assist
Fixed, accompanied by the
message "Anti roll-back system
fault".
The system has a fault.
Carry out (3).
Dynamic stability control (DSC)/Anti-slip
regulation (ASR)
Fixed.
The system is deactivated.
16
The DSC/ASR system is reactivated
automatically when the vehicle is started, and at
speeds above approximately 31 mph (50 km/h).
At speeds below 31 mph (50 km/h), it can be
reactivated manually.
Under-inflation
Fixed.
The pressure in one or more tyres is too
low.
Check the pressure of the tyres as soon as
possible.
Reinitialise the detection system after adjusting
the pressure.
Under-inflation warning lamp
flashing then fixed and Service
warning lamp fixed.
The tyre pressure monitoring system is faulty.
Under-inflation detection is no longer monitored.
Check the tyre pressures as soon as possible
and carry out (3).
Engine preheating (Diesel)
Temporarily on
(up to approximately 30 seconds in
severe weather conditions).
When switching on the ignition, if the weather
conditions and the engine temperature make it
necessary.
Wait until the warning lamp goes off before
starting.
When the warning lamp goes off, starting will
occur immediately if you press and hold:
– the clutch pedal with a manual gearbox.
– the brake pedal with an automatic gearbox.
If the engine does not start, make the engine
starting request again, while keeping your foot
on the pedal.
Particle filter (Diesel)
Fixed, accompanied by an audible signal
and a message about the risk of particle
filter blockage.
The particle filter is nearing saturation.
As soon as traffic conditions permit, regenerate
the filter by driving at a speed of at least 37 mph
(60 km/h) until the warning lamp goes off.
Diesel fuel filter (Diesel)
Fixed.
The Diesel fuel filter contains water.
Carry out (2) without delay. Risk of damaging the
fuel injection system!
Airbags
Fixed, associated with the Service
warning lamp and accompanied by
the display of a message.
One of the airbags or seat belt pyrotechnic
pretensioners is faulty.
Carry out (3).
Front passenger airbag (ON)
Fixed.
The front passenger airbag is activated.
The control is set to the "ON" position.
In this case, do not install a "rearward facing"
child seat on the front passenger seat - risk
of serious injury!