34
Instruments and controls Puncture
Stop immediately, avoiding any sudden
movement of the steering wheel and
the brakes.
Change the damaged (punctured or
v e r y d e fl a t e d ) t y r e , a n d h a v e t h e t y r e
pressure checked as soon as possible. Sensor(s) not detected
U n d e r - i n fl a t i o n d e t e c t i o n i s a b s e n t
from one (or several) tyre(s). Contact a
CITROËN dealer to replace the faulty
sensor(s).
This message is also displayed when
one of the tyres is away from the
vehicle (being repaired) or when a
w h e e l w i t h o u t a s e n s o r i s fi t t e d .
All repairs and changing of tyres on a
w h e e l fi t t e d w i t h t h i s s y s t e m m u s t b e
carried out by a CITROËN dealer.
T h e t y r e u n d e r - i n fl a t i o n d e t e c t i o n
system is a driving aid which does
not take the place of vigilance or the
responsibility of the driver.
This system does not remove the need
to have the tyre pressure checked
regularly (including the spare wheel), to
ensure that the dynamic performance
of the vehicle remains at its best and
to avoid premature wear of the tyres,
in particular in the case of arduous
driving (heavy load, high speed).
The system may temporarily be
disturbed by radio broadcasts on a
frequency close to it.
TYRE UNDER-INFLATION
DETECTION
- C O ( c a r b o n m o n o x i d e ) ,
- HC (unburnt hydrocarbons),
- N O x ( n i t r o g e n o x i d e s ) o r p a r t i c l e s , d e t e c t e d b y o x y g e n s e n s o r s p l a c e d
upstream and downstream of the
catalytic converters.
Therefore, the driver is warned of any
malfunction of this emission control
s y s t e m b y t h e l i g h t i n g o f t h i s s p e c i fi c
warning light on the instrument panel.
There is a risk of damage to the
catalytic converter. Have it checked by
a CITROËN dealer.
EMISSION CONTROL Flat tyre
Check the tyre pressure as soon as
possible.
Refer to the "Changing a wheel"
section of chapter 7.
If the damaged tyre is temporarily
stored inside the vehicle, it will again
emit this message to remind you of the
necessity of having it repaired. This will
prevent another warning of the same
type being displayed.
Sensors check the tyre pressure during
driving (speed higher than 12 mph
[20 km/h]) and trigger a warning in the
event of a malfunction or puncture. EOBD (European On Board
Diagnosis) is a diagnostics
system which complies with,
among others, the standards
concerning authorised
emissions of:
Any anomaly detected
( fl a t o r p u n c t u r e d t y r e ,
malfunction of a sensor)
is indicated by visual and
audible information and
is accompanied by a message on the
display.
