2016 Citroen C4 CACTUS Air

121
When towing
Distribution of loads
F Distribute  the   load   in   the   trailer   so   that   the  h
eaviest   items   are   as   close   as   possible   to  
t

he   axle   and   the   nose   weight   approaches  
t

he   maximum   permitted   without  
e

xceeding it.
Air
  density   decreases   with   altitude,   thus  
r

educing   engine   per formance.   Above  
1 0

00 metres,   the   maximum   towed   load   must  
b

e   reduced   by   10 %   for   every   1 000   metres   of  
al

titude.
For
  more   information   on   weights   (and   the  
t

owed   loads   which   apply   to   your   vehicle)   refer  
t

o   the   corresponding   section.
Side wind
F Take  into   account   the   increased   sensitivity  t
o   side   wind.
Cooling
Towing a trailer on a slope increases the temperature   of   the   coolant.
As
  the   fan   is   electrically   controlled,   its   cooling  
c

apacity   is   not   dependent   on   the   engine   speed.
F
 
T
o   lower   the   engine   speed,   reduce   your  
s

peed.
The
  maximum   towed   load   on   a   long   incline  
d

epends   on   the   gradient   and   the   ambient  
t

emperature.
In
  all   cases,   keep   a   check   on   the   coolant  
t

emperature. F
 
I
f   the   warning   lamp   and   the  
S

TOP
 
warning   lamp   come   on,  
s

top   the   vehicle   and   switch   off  
t

he   engine   as   soon   as   possible.
Braking
Towing a trailer increases the braking distance.
T o   avoid   overheating   of   the   brakes,   the   use   of  
e

ngine   braking   is   recommended.
Ty r e s
F Check  the   tyre   pressures   of   the   towing  v
ehicle   and   of   the   trailer,   observing   the  
re

commended
 p
ressures.
Lighting
F Check  the   electrical   lighting   and   signalling  o
n   the   trailer   and   the   hadlamp   beam   height  
o

f   your   vehicle.
For
  more   information   on   adjusting   the  
h

eadlamp   beam   height,   refer   to   the  
c

orresponding
 s
ection.
The
  rear   parking   sensors   will   be  
d

eactivated   automatically   if   a   genuine  
C

ITROËN   towbar   is   used.
6
Driving

122
Starting
The parking brake must be applied.
F
 
W

ith
 
a   manual   gearbox,   place   the   gear  
l

ever
 
in   neutral   then   depress   the   clutch  
p

edal
 f
ully.
F
 
W

ith
 
an   electronic   gearbox,   place   the  
c

ontrol at N   then   press   the   brake   pedal  
f

i r m l y.
F
 
I

nsert
  the   key   into   the   ignition   switch;   the  
s

ystem   recognises   the   code.
F
 
U

nlock   the   steering   column   by   simultaneously
 t

urning   the   steering   and   the   key.
In
 
certain   cases,   you   may   have   to   apply  
m

ore   force   to   the   steering   (wheels   on  
f

ull
  lock,   for   example).
F
 
W

ith
 
a   petrol   engine,   operate   the   starter  
m

otor
  by   turning   the   key   to   position 3
without
  pressing   the   accelerator   pedal,  
u

ntil
 
the   engine   starts.   Once   the   engine   is  
r

unning,   release   the   key.
Starting-switching off the engine
It has 3 positions:
-  p osition   1 (Stop):
  insert   and   removing  
the
  key,
-
 
p
osition   2 (Ignition on) :
  steering   column  
u

nlocked,   ignition   on,   Diesel   preheating,  
e

ngine
 r
unning,
-
 
p
osition   3 (Starting).
Ignition switch
Switching off the engine leads to a loss o
f   braking   assistance.
Ignition on position (2)
It allows the use of the vehicle's electric equipment   or   portable   devices   to   be   charged.
Once
  the   state   of   charge   of   the   battery   drops  
t

o   the   reserve   level,   the   system   switches   to  
e

nergy   economy   mode:   the   power   supply   is  
c

ut   off   automatically   to   preserve   the   remaining  
b

attery   charge.
Avoid
  attaching   heavy   objects   to   the  
k

ey,   which   would   weigh   down   on   its  
b

lade   in   the   ignition   switch   and   could  
c

ause   a   malfunction.
It
  could   adversely   affect   the   deployment  
o

f   the   front   airbag.
Driving

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

161
Load reduction mode
System which manages the use of certain functions   according   to   the   level   of   charge  
r

emaining   in   the   battery.
When
  the   vehicle   is   being   driven,   the   load  
r

eduction   function   temporarily   deactivates  
c

ertain   functions,   such   as   the   air   conditioning,  
t

he   heated   rear   screen...
The
  deactivated   functions   are   reactivated  
a

utomatically   as   soon   as   conditions   permit.System
  which   manages   the   duration   of   use   of  c
ertain functions to conserve a sufficient level
of
  charge   in   the   battery.
After
  the   engine   has   stopped,   you   can  
s

till   use   functions   such   as   the   audio   and  
t

elematics   system, windscreen   wipers,   dipped  
b

eam   headlamps, courtesy   lamps,   etc.   for  
a

  maximum   combined   duration   of   about  
f

orty minutes.
Energy economy mode
Switching to economy mode
A message then appears in the instrument p
anel   screen   indicating   that   the   vehicle   has  
s

witched   to   economy   mode   and   the   active  
f

unctions   are   put   on   standby.
If
  a   telephone   call   is   being   made   at   this   time,   it  
w

ill   be   maintained   for   around   10   minutes   with  
t

he   Bluetooth   hands-free   system   of   your   audio  
s

ystem.
Exiting economy mode
These functions are reactivated automatically n ext   time   the   vehicle   is   driven.
In
  order   to   restore   the   use   of   these   functions  
i

mmediately,   start   the   engine   and   let   it   run:
-
 
f
or   less   than   ten   minutes,   to   use   the  
e

quipment   for   approximately   five   minutes,
-
 
f
or   more   than   ten   minutes,   to   use   the  
e

quipment   for   up   to   approximately  
t

hirty minutes.
Let
  the   engine   run   for   the   duration   specified   to  
e

nsure   that   the   battery   charge   is   sufficient.
Do
  not   repeatedly   and   continuously   restart   the  
e

ngine   in   order   to   charge   the   battery.
A
  flat   battery   prevents   the   engine   from  
s

tarting.
For
  more   information   on   the   battery,  
r

efer   to   the   corresponding   section.
7
Practical information

162
Accessories
A wide range of accessories and genuine parts is available from the CITROËN dealer network.
T hese   accessories   and   parts   are   all   suitable   for   your   vehicle   and   benefit   from   CITROËN's   recommendation   and   warranty.
"Comfort"
Door deflectors, side sun blinds, insulated module,   coat   hanger   fixed   to   head   restraint,  
m

obile   reading   lamp,   front   and   rear   parking  
s

ensors,   portable   ashtray,   scented   air  
f

reshener,   blind   for   sunroof...
"Transport systems"
Boot carpet, boot liner, boot net, boot spacers,
transverse  roof   bars,   ski   carrier,   roof   box,  
t

owbar,  
t
owbar  
w
iring  
h
arnesses,  
b
icycle  
c
arrier  
f

or   mounting   on   the   towbar   and   on   the   roof  
b

ars,   towbars   with   fixed   and   quickly   detachable  
t

owball...
"Styling"
Aluminium foot rest, alloy wheels, front spoiler, r ear   diffuser,   exterior   expressive   stickers...
"Security and safety":
Anti-intrusion alarm, vehicle tracking system, first   aid   kit,   fire   extinguisher,   warning   triangle,  
h

igh   visibility   vest,   wheel   security   bolts,   snow  
c

hains,   non-slip   covers,   front   foglamp   kit,   dog  
g

uard,   pet   seat   belt,   seat   belt   cutter/glass  
h

ammer...
"Protection"
Mats*, seat covers, mud flaps, vehicle cover...
I
f
 
a
 
towbar
 
and
 
wiring
 
harness
 
are
 f
itted
 
outside
 
the
 
CITROËN
 
dealer
 n
etwork,
 
the
 
installation
 
must
 
be
 
done
 
s

trictly
 
in
 
line
 
with
 
the
 
manufacturer's
 
r

ecommendations. *
 
T
o   avoid   any   risk   of   jamming   the   pedals:
-
 
e
nsure   that   mats   are   correctly   positioned  
a

nd   secured,
-
 
n
ever   fit   one   mat   on   top   of   another.
"Multimedia"
Bluetooth hands-free kits, portable satellite navigation   system,   driving   assistance   systems,  
s

martphone   carriers,   DVD   player,   CD   player,  
2

30   V   socket,   semi-integral   satellite   navigation  
s

ystem,   rear   multimedia   carrier,   navigation  
m

apping   updates,   aftermarket   digital   radio...
By
  visiting   a   CITROËN   dealer   you   can   also  
o

btain   cleaning   and   maintenance   products  
(

interior   and   exterior)   -   including   ecological  
p

roducts   in   the   "TECHNATURE"   range,  
p

roducts   for   topping   up   (screenwash...),   paint  
t

ouch-up   pens   and   aerosols   for   the   exact  
c

olour   of   your   vehicle,   refills   (sealant   cartridge  
f

or   the   temporary   puncture   repair   kit...)...
Practical information

174
Checks
12 V battery
The battery does not require any maintenance.
H owever,   check   regularly   that   the   terminals  
a

re   correctly   tightened   (versions   without   quick  
r

elease   terminals)   and   that   the   connections  
a

re   clean.Refer to the manufacturer's service   schedule   for   details   of   the  
r

eplacement   intervals   for   these  
c

omponents.
Air filter and passenger compartment filter
Replace the oil filter each time the e ngine   oil   is   changed.
Refer
  to   the   manufacturer's  
s

ervice   schedule   for   details   of  
t

he   replacement   interval   for   this  
c

omponent.
Oil filter
Unless other wise indicated, check these components in accordance with the manufacturer's service schedule and according to your engine.
O ther wise,   have   them   checked   by   a   CITROËN   dealer   or   a   qualified   workshop.
Depending
  on   the   environment   (e.g.   dusty  
a

tmosphere)   and   the   use   of   the   vehicle  
(e.g.
  city   driving),   replace them twice as often
if necessary .
A
  clogged   passenger   compartment   filter   may  
h

ave   an   adverse   effect   on   the   per formance  
o

f   the   air   conditioning   system   and   generate  
u

ndesirable
 o
dours.
Particle filter (Diesel)
The start of saturation of the
particle  filter   is   indicated   by   the  
f

ixed   illumination   of   this   warning  
l

amp   accompanied   by   a   warning  
m

essage.
As
 
soon
 
as
  the   traffic   conditions   permit,  
r

egenerate
 
the   filter   by   driving   at   a   speed   of   at  
l

east
 
40
 
mph   (60   km/h)   until   the   warning   lamp  
g

oes
 
off.
If
 
the
 
warning   lamp   stays   on,   this   indicates   a  
l

ow
 
additive   level.
Refer
 
to
 
the   "Diesel   additive   level"   section.
On a new vehicle, the first particle
filter
 
regeneration   operations   may   be  
a

ccompanied   by   a   "burning"   smell,  
w

hich   is   per fectly   normal.
Following
  prolonged   operation   of   the  
v

ehicle   at   very   low   speed   or   at   idle,  
y

ou
 
may,   in   exceptional   circumstances,  
n

otice   the   emission   of   water   vapour   at  
t

he
 
exhaust   on   acceleration.   This   does  
n

ot affect the behaviour of the vehicle
or
 
the   environment.
When
 
carrying
 
out
 
any
 
operation
 
on
 
the
 
12
 
V
 
b

attery,
 
refer
 
to
 
the
 
corresponding
 
section
 
for
 
d

etails
 
of
 
the
 
precautions
 
to
 
be
 
taken
 
before
 
s

tarting
 
work.
Versions
 
equipped
 
with
 
Stop
 
&
 
Start
 
are
 
f

itted
 
with
 
a
 
12
 
V
 
lead-acid
 
battery
 
of
 
s

pecific
 t

echnology
 a

nd
 s

pecification.
Its
 
replacement
 
should
 
be
 
carried
 
out
 
o

nly
 

by
 

a
 

CITROËN
 

dealer
 

or
 

a
 

qualified
 w

orkshop.
Practical information

183
Made of TPU (Thermo Plastic Urethane) and enclosing bubbles of air on the side protectors only, they   act   as   an   impact   absorber.
Located
  on   the   sides,   front   and   rear   of   your   vehicle,   they   protect   the   bodywork   by   reducing   the  
e

ffect   of   minor   everyday   knocks:   parking   dings,   opening   doors,   scrapes, ...
These
  coloured   protectors   also   enhance   the   appearance   of   your   vehicle.
AIRBUMP® protectors
AIRBUMP® protection areas
A. Side.
B. Front.
C.
 R

e a r.
Care of the AIRBUMP®
protectors
The AIRBUMP® protectors require no par
ticular c
are o r m aintenance.
They
 
are
 
cleaned   simply   using   water   or   one   of
 t

he
 
products
 
available   from   CITROËN   dealers.
To
 
avoid
 
problems   of   premature   ageing   of  
t

he AIRBUMP
® protectors, do not use polish o
n
 
them.
7
Practical information