CITROËN C4 Handbook page 24

Instruments
Warning/indicator lamp
Airbags
Presence of
water in the
Diesel fuel**
Particle filter
(Diesel)
** Only on the type 1 instrument panel.
22
is on Cause
temporarily. This lamp comes on for a
few seconds when you turn on the
ignition, then goes off.
fixed. One of the airbag or seat belt
pretensioner systems has a fault.
fixed. The Diesel fuel filter contains water.
fixed, accompanied
This indicates that the particle filter is
by an audible signal starting to become saturated.
message on the risk
of blockage of the
particle filter.
fixed, accompanied by
This indicates the low level of the
an audible signal and additive reservoir.
and a message that the
particle filter additive
level is too low.
Action/Observations
This lamp should go off when the engine is started.
If it does not go off, contact a CITROËN dealer or a
qualified workshop.
Have it checked by a CITROËN dealer or a qualified
workshop.
Risk of damage to the injection system on Diesel
engines.
Contact a CITROËN dealer or a qualified workshop
without delay.
As soon as driving conditions allow, regenerate the
filter by driving at a speed of at least 35 mph (60 km/h)
until the warning lamp goes off.
Have the reservoir topped up as soon as possible by a
CITROËN dealer or a qualified workshop.