Instruments and controls
36
EMISSIONS CONTROLS
EOBD (European On Board
Diagnosis) is a diagnostics
system which complies with,
among others, the standards
concerning authorised
emissions of:
- CO (carbon monoxide),
- HC (unburnt hydrocarbons),
- NOx (nitrous oxides) or particles, detected by oxygen sensors placed
upstream and downstream of the
catalytic converters.
The driver is warned of any malfunction
of this emission control system by the
illumination of this specifi c warning
lamp in the instrument panel.
There is a risk of damage to the
catalytic converter. Have it checked
by a CITROËN dealer or a qualifi ed
workshop.
TYRE UNDER-INFLATION DETECTION
System which
automatically checks the
pressures of the tyres
while driving.
The system
continuously monitors
the pressures of the four tyres, as soon
as the vehicle is moving.
A pressure sensor is located in the
valve of each tyre (except the spare
wheel).
The system triggers an alert if a drop
in pressure is detected in one or more
tyres.
The tyre under-infl ation detection
system is an aid to driving which
does not replace the need for
the driver to be vigilant or to drive
responsibly. This system does not avoid the
need to check the tyre pressures
regularly (including the spare
wheel) and before a long journey.
Driving with under-infl ated tyres
adversely affects road holding,
extends braking distances and causes
premature tyre wear, particularly under
arduous conditions (vehicle loaded,
high speed, long journey).
Driving with under-infl ated tyres
increases fuel consumption.
The tyre pressures for your vehicle
can be found on the tyre pressure
label (see the "Identifi cation
markings" section).
The tyre pressures must be checked
when the tyres cold (vehicle stopped
for 1 hour or after driving for less then
6 miles (10 km) at moderate speed).
Otherwise, add 0.3 bar to the values
indicated on the label.
2
Instruments and controls
37
READY TO GO
The alert is maintained until
the tyre or tyres concerned is
reinfl ated, repaired or replaced.
The spare wheel (space-saver
type or a steel rim) does not have a
sensor.
Operating fault
Under-inflation alert
The loss of pressure detected
does not always lead to visible
deformation of the tyre. Do not rely
on just a visual check.
The alert is given by the fi xed
illumination of this warning lamp,
accompanied by an audible signal,
and depending on equipment, the
display of a message. The fl ashing and then
fi xed illumination of the
under-infl ation warning
lamp accompanied by the
illumination of the "service" warning
lamp, and depending on equipment,
the display of a message indicates a
fault with the system.
In this case, monitoring of the tyre
pressures is not assured.
In the event of a problem on one of
the tyres, the symbol or the message
appears, according to equipment, to
identify it.
- Reduce speed, avoid sudden
steering movements or harsh brake
applications.
- Stop as soon as it is safe to do so.
- In the event of a puncture, use the temporary puncture repair kit
or the spare wheel (according to
equipment),
or
- if you have a compressor, the one in the temporary puncture repair
kit for example, check the four tyre
pressures when cold,
or
- if it is not possible to check the tyre pressures at the time, drive
carefully at reduced speed. This alert is also displayed when
one or more wheels is not fi tted
with a sensor (for example, a
space-saver or steel spare wheel).
Go to a CITROËN dealer or a qualifi ed
workshop to have the system checked
or, following the repair of a puncture, to
have the original wheel, equipped with
a sensor, refi tted.
