2016 Citroen C4 CACTUS four wheel drive

151
Under-inflation detection
The system monitors the pressures in the four t
yres,   once   the   vehicle   is   moving.
It
  compares   the   information   given   by   the   four  
w

heel   speed   sensors   with   reference values,
which must be reinitialised ever y time the
tyre pressures are adjusted or a wheel
changed .
The
  system   triggers   an   alert   as   soon   as   it  
d

etects   a   drop   in   the   inflation   pressure   of   one  
o

r   more   tyres. The
  under-inflation   detection   system  
d

oes   not   replace   the   need   for   vigilance  
o

n   the   part   of   the   driver.
This
  system   does   not   avoid   the   need   to  
c

heck   the   tyre   pressures   (including   the  
s

pare   wheel)   every   month   as   well   as  
b

efore   a   long   journey.
Driving
  with   under-inflated   tyres   impairs  
r

oad   holding,   extends   braking   distances  
a

nd   causes   premature   tyre   wear,  
p

articularly   under   arduous   condition  
(

high   loading,   high   speed,   long   journey).
System
  which   automatically   checks   the   pressures   of   the   tyres   while   driving.
The   inflation   pressures   defined   for  
y

our   vehicle   can   be   found   on   the   tyre  
p

ressure   label.
For
  more   information   on   the  
i

dentification   markings,   refer   to   the  
c

orresponding
 s
ection.
Tyre
  pressures   should   be   checked  
w

hen   the   tyres   are   "cold"   (vehicle  
s

topped   for   1   hour   or   after   a   journey   of  
l

ess   than   6   miles   (10   km)   at   moderate  
s

peeds).
Other wise
  (when   hot),   add   0.3   bar   to  
t

he   pressures   shown   on   the   label.
Driving
  with   under-inflated   tyres  
i

ncreases   fuel   consumption.
6
Driving

152
Under-inflation alertReinitialisation
Before reinitialising the system, ensure t
hat the pressures of the four tyres are
correct
  for   the   use   of   the   vehicle   and   in  
l

ine   with   the   recommendations   on   the  
t

yre   pressure   label.
The
  under-inflation   alert   can   only  
b

e   relied   on   if   the   reinitialisation   of  
t

he   system   has   been   done   with   the  
p

ressures in the four tyres correctly
adjusted.
The
  under-inflation   detection   system  
d

oes   not   give   a   warning   if   a   pressure   is  
i

ncorrect   at   the   time   of   reinitialisation.
This
 
is
 
given
 
by
 
fixed
 
illumination
 
of
 
t

his
 
warning
 
lamp,
 
accompanied
 
by
 
a

n
 
audible
 
signal
 
and
 
the
 
display
 
of
 
a
 
m

essage.
It
 
is
 
necessary   to   reinitialise   the   system   every  
t

ime
 
one   or   more   tyre   pressures   are   adjusted,  
a

nd
 
after   changing   one   or   more   wheels.
F
 
R

educe
 
speed
 
immediately,
 
avoid
 e
xcessive
 
steering
 
movements
 
and
 
sudden
 b
raking
F

S

top the vehicle as soon as it is safe to
do so. F
 
I

f
 
you
 
have
 
a
 
compressor
 
(such
 
as
 
the
 
one
 
i

n
 
the
 
temporary
 
puncture
 
repair
 
kit),
 
check
 
t

he
 
pressures
 
of
 
the
 
four
 
tyres
 
when
 
cold.
 
I

f
 
it
 
is
 
not
 
possible
 
to
 
carry
 
out
 
this
 
check
 
s

traight
 
away,
 
drive
 
carefully
 
at
 
reduced
 
s

peed.
or
F
I
n the event of a puncture, use the
temporary
 
puncture
 
repair
 
kit
 
or
 
the
 
spare
 
w

heel
 
(depending
 
on
 
equipment),
The
 
loss
 
of
 
pressure
 
detected
 
does
 
not
 
a

lways
 
cause
 
visible
 
bulging
 
of
 
the
 
tyre.
 
D

o
 
not
 
satisfy
 
yourself
 
with
 
just
 
a
 
visual
 
c

heck. The
 
alert
 
is
 
maintained
 
until
 
the
 
system
 
i

s
 r

einitialised.
Driving

217
To w i n g
General recommendations
Observe the legislation in force in your country.
E nsure   that   the   weight   of   the   towing   vehicle   is   higher   than   that   of   the   towed   vehicle.
The
  driver   must   remain   at   the   wheel   of   the   towed   vehicle   and   must   have   a   valid   driving   licence.
When
  towing   a   vehicle   with   all   four   wheels   on   the   ground,   always   use   an   approved   towing   arm;
 r

ope   and   straps   are   prohibited.
The
  towing   vehicle   must   move   off   gently.
When
  towing   a   vehicle   with   the   engine   off,   there   is   no   longer   any   power   assistance   for   braking
 o

r   steering.
In
  the   following   cases,   you   must   always   call   on   a   professional   recovery   service:
-
 
v
ehicle   broken   down   on   a   motor way   or   fast   road,
-
 
f
our-wheel   drive   vehicle,
-
 
w
hen   it   is   not   possible   to   put   the   gearbox   into   neutral,   unlock   the   steering,   or   release   the
 par

king
 b
rake,
-
 
t
owing   with   only   two   wheels   on   the   ground,
-
 
w
here   there   is   no   approved   towing   arm   available...
Procedure
 
for
 
having
 
your
 
vehicle
 
towed
 
or
 
for
 
towing
 
another   vehicle   using   a   removable   towing   eye.
The towing eye
 
is
 
stowed
 
under
 
the
 
boot
 
floor,
 
o

r
 
may
 
be
 
located
 
under
 
the
 
front
 
passenger
 sea
t, d
epending o
n v
ersion.
8
In the event of a breakdown