CITROËN C4 Handbook page 26

Instruments
Warning/indicator lamp
SCR emissions
control system
+ (BlueHDi Diesel)
+
24
is on Cause
fixed, on switching on A fault with the SCR emissions
the ignition, associated control system has been detected.
with the SERVICE and
engine diagnostic warning
lamps, accompanied by
an audible signal and a
message.
flashing, on switching on After confirmation of the fault with the
the ignition, associated emissions control system, you can
drive for up to 650 miles (1 100 km)
with the SERVICE and
engine diagnostic warning before the engine starting inhibition
lamps, accompanied by system is triggered.
an audible signal and a
message indicating the
remaining driving range.
flashing, on switching on You have exceeded the authorised
the ignition, associated driving limit following confirmation
of a fault with the emissions control
with the SERVICE and
engine diagnostic warning system: the engine starting inhibition
lamps, accompanied by system prevents starting of the
an audible signal and a engine.
message.
Action/Observations
This alert disappears once the exhaust emissions
return to normal levels.
Contact a CITROËN dealer or a qualified
workshop without delay, to avoid a breakdown.
To be able to start the engine, you must call on a
CITROËN dealer or a qualified workshop.