CITROËN C4 Handbook page 33

Service overdue
For a few seconds after the ignition is switched on,
the spanner flashes to indicate that the service
must be carried out as soon as possible.
Example: the service is overdue by 180 miles
(300 km).
For a few seconds after the ignition is switched on,
the screen indicates:
A few seconds after the ignition is switched
on, the distance recorder resumes its normal
operation. The spanner remains on.
For BlueHDi Diesel versions, this alert is also
accompanied by the fixed illumination of the
Service warning lamp when the ignition is
switched on.
The spanner comes on if you have
exceeded the specified time interval
since the last service, as indicated in
the manufacturer's service schedule.
For BlueHDi Diesel versions, the
spanner may also come on before the
normal service point, according to the
level of deterioration of the engine oil,
which depends on the driving conditions
in which the vehicle is used.
Instruments
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