2016 Citroen C4 CACTUS sensor

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

143
This system indicates the proximity of an obstacle   (pedestrian,   vehicle,   tree,   gate,   etc.)  
w

hich   comes   within   the   field   of   detection   of  
s

ensors   located   in   the   bumper.
Certain
  types   of   obstacle   (stake,   roadworks  
c

one,   etc.)   detected   initially   will   no   longer   be  
d

etected   at   the   end   of   the   manoeuvre,   if   they  
a

re   located   in   blind   spots   in   the   sensors'   field  
o

f   detection.
Parking sensors
This system cannot in any circumstances replace the   need   for   vigilance   on   the   part   of   the   driver.
The system is switched on by engaging reverse ge a r.
This
  is   confirmed   by   an   audible   signal.
The
  system   is   switched   off   when   you   come   out  
o

f   reverse   gear.
Audible assistance
The proximity information is given by an intermittent   audible   signal,   the   frequency   of   which  
i

ncreases   as   the   vehicle   approaches   the   obstacle.
The
  sound   emitted   by   the   speaker   (right   or  
l

eft)   indicates   the   side   on   which   the   obstacle   is  
l

ocated.
When
  the   distance   between   the   vehicle   and  
t

he   obstacle   becomes   less   than   approximately  
t

hirty   centimetres,   the   audible   signal   becomes  
c

ontinuous.
Rear parking
sensors
Visual assistance
This supplements the audible signal by d isplaying   bars   in   the   screen   or   the   instrument  
p

anel   which   move   progressively   nearer   to  
t

he   vehicle.   When   the   obstacle   is   near,   the  
"

Danger"   symbol   is   displayed.
6
Driving

144
Front parking
sensors
The sound emitted by the speaker (front or   rear)   indicates   whether   the   obstacle  
i

s   in   front   or   behind. The
  system   will   be   deactivated  a
utomatically   if   a   trailer   is   being  
t

owed   or   a   bicycle   carrier   is   fitted   on  
a

  towbar   (vehicle   fitted   with   a   towbar  
i

nstalled   in   line   with   the   manufacturer's  
r

ecommendations).In
  bad   weather   or   in   winter,   ensure  
t

hat   the   sensors   are   not   covered   with  
m

ud,   ice   or   snow.   When   reverse   gear   is  
e

ngaged,   an   audible   signal   (long   beep)  
i

ndicates   that   the   sensors   may   be   dirty.
Certain
  sound   sources   (motorcycle,  
l

orry,   pneumatic   drill,   etc.)   may   trigger  
t

he   audible   signals   of   the   parking  
s

ensor   system.
As
 
an
 
addition   to   the   rear   parking   sensors,   the  
f

ront
 
parking   sensors   are   triggered   when   an  
o

bstacle   is   detected   in   front   and   the   speed   of  
t

he
 
vehicle   is   still   below   6   mph   (10   km/h).
The
 
front   parking   sensors   are   interrupted   if  
t

he
 
vehicle   stops   for   more   than   three   seconds  
i

n
 
for ward   gear,   if   no   further   obstacles   are  
d

etected   or   when   the   speed   of   the   vehicle  
e

xceeds   6   mph   (10   km/h).
Operating fault
In the event of a malfunction of t
he   system,   when   reverse   gear   is  
e

ngaged   the   symbol   for   the   button  
c

hanges   to   alert   mode   and   the  
w

arning   lamp   flashes   for   a   few  
m

oments   then   stays   on   continuously.
A
 
message   appears,   accompanied   by   an  
a

udible
 
signal   (short   beep).
Contact
 
a   CITROËN   dealer   or   a   qualified  
w

orkshop.
F

Sel

ect " Parking sensors " in the
" Driving assistance "
 
menu.
 
T

he
 
indicator
 
lamp
 
in
 
the
 
button
 
c

omes
 
on.
High pressure jet wash
When
 
washing   your   vehicle,   do   not   direct   the  
l

ance
 
within   30   cm   of   the   sensors.
Pressing
 
this
 
button
 
again
 
reactivates
 
the
 
s

ystem.
 
The
 
indicator
 
lamp
 
goes
 
off.
The
 
parking
 
sensors
 
can
 
be
 
deactivated
 
in
 
the
 t
ouch
 
screen
 
tablet.
The
 
parking
 
sensors
 
are
 
deactivated
 
w

hile
 
the
 
Park
 
Assist
 
system
 
is
 
m

easuring
 
a
 
space.
See
 
the
 
"Park
 
Assist"
 
section.
Deactivation / Activation of
the front and rear parking
sensors
Driving

145
Reversing camera
Opening the tailgate causes the display t
o   disappear.
The
 r

eversing
 c

amera
 i

s
 a

ctivated
 a

utomatically
 w

hen
 r

everse
 g

ear
 i

s
 enga

ged.
The
 
image
 
is
 
displayed
 
in
 
the
 
touch
 
screen
 
t

ablet. The
 
blue
 
lines
 
represent
 
the
 
general
 
direction
 
o

f
 
the
 
vehicle
 
(the
 
gap
 
represents
 
the
 
width
 
of
 
y

our
 
vehicle
 
except
 
for
 
the
 
door
 
mirrors).
The
 
red
 
lines
 
represent
 
a
 
distance
 
of
 
about
 
3

0
 
cm
 
beyond
 
the
 
edge
 
of
 
your
 
vehicle's
 
rear
 b
u m p e r.
The
 
green
 
lines
 
represent
 
distances
 
of
 
a

bout 1 and
 
2
 
metres
 
beyond
 
the
 
edge
 
of
 
your
 
v

ehicle's
 
rear
 
bumper.
The
 
turquoise
 
blue
 
curves
 
represent
 
the
 
m

aximum
 
turning
 
circle. Clean
  the   reversing   camera   regularly   using   a  
s

oft,
 
dry   cloth.
The
 
reversing
 
camera
 
cannot
 
in
 
any
 
c

ircumstances
 
replace
 
the
 
need
 
for
 
v

igilance
 
on
 
the
 
part
 
of
 
of
 
the
 
driver. It
  is   normal   to   see   part   of   the   number  
p

late   displayed   at   the   bottom   of  
t

he screen.
The
 
reversing
 
camera
 
function
 
may
 
be
 s
upplemented
 
with
 
parking
 
sensors.
High pressure jet washing
When
  washing   your   vehicle,   do   not  
d

irect   the   lance   within   30   cm   of   the  
c

amera   lens.
6
Driving

146
Park Assist
This system provides active assistance with parking, detecting a parking space then controlling the steering to park in the space.
I t   controls   the   steering   while   the   driver   manages   the   accelerator,   brakes,   gears   and   clutch   (manual   gearbox).   During   phases   of   entry   into   and   exit   from  
a

  parking   space,   the   system   provides   visual   and   audible   information   to   the   driver   in   order   to   make   the   manoeuvre   safe.   It   may   be   necessary   to   move  
f

or wards   and   backwards   more   than   once.
The
  Park   Assist   system   cannot   in   any  
c

ircumstances   replace   the   need   for  
v

igilance   on   the   part   of   the   driver.
The
  driver   must   remain   in   control   of  
t

heir   vehicle   ensuring   that   the   space  
r

emains   clear   during   the   manoeuvre.
In
  some   circumstances,   the   sensors  
m

ay   not   detect   small   obstacles   located  
i

n   their   blind   spots. Changing
  tyre   sizes   (out-size   tyres,  
w

inter   tyres, ...)   can   inter fere   with  
t

he   correct   operation   of   the   parking  
a

ssistance   system.
During
  a   manoeuvre   the   steering   wheel  
t

urns   quickly:   do   not   hold   the   steering  
w

heel,   do   not   place   your   hand   between  
t

he   spokes   of   the   steering   wheel   and  
t

ake   care   with   loose   and   bulky   clothing,  
s

carves,   handbags...   There   is   a   risk   of  
in

jury. For
  entry   into   a   parking   space   (parallel  
p

arking)   the   system   does   not   detect  
s

paces   which   are   clearly   much   smaller  
o

r   larger   than   the   size   of   the   vehicle.
This
  "parking   assistance"   system  
i

s   activated   automatically   during  
m

anoeuvres;   it   is   therefore   possible  
t

hat   a   symbol   comes   on   in   the   screen,  
a

ccompanied   by   an   audible   signal,  
w

ithout   affecting   the   manoeuvre.The
  selection   of   the   type   of   manoeuvre  
(

entering   or   exiting   a   parallel   parking  
s

pace)   prevents   a   change   to   STOP  
m

ode   of   Stop   &   Start.
In
  STOP   mode,   this   selection   restarts  
t

he
 eng
ine.
The
  driver   can   take   control   at   any   time   by   gripping   the   steering   wheel.
The
 
s
ystem  
p
rovides  
a
ssistance  
i
n  
e
ntering  
a
nd  
e

xiting
 a par
king
 spa
ce
 w
hen
 par
allel
 par
king.
D

150
In bad weather and in winter, ensure that   the   sensors   are   not   covered   by  
r

oad   dirt,   ice   or   snow.
In
  the   event   of   a   fault,   have   the   system  
c

hecked   by   a   CITROËN   dealer   or   a  
q

ualified
 w
orkshop.
If
 
the
 
system
 
is
 
deactivated
 
during
 
a
 
m

anoeuvre,
 
the
 
driver
 
should
 
reactivate
 
i

t
 
to
 
repeat
 
the
 
measurement.
If the lateral distance between your vehicle a
nd   the   space   is   too   great,   the   system   may  
n

ot   be   able   to   measure   the   space.
Anything
  projecting   beyond   the   envelope  
o

f   the   vehicle   (long   or   wide   load)   is   not  
t

aken   into   account   by   the   Park   Assist  
s

ystem   during   a   manoeuvre.
Deactivation
A message is displayed in the screen.
T he   driver   then   takes   back   control   of   the  
v

ehicle's
 s
teering.
The
 
system
 
is
 
deactivated
 
by
 
pressing
 
the
 P
ark
 
Assist
 
control
 
(or
 
the
 
Park
 
Assist
 
button
 
i

n the " Driving assistance "
 
menu
 
of
 
the
 
touch
 
s

creen tablet),
The
 
system
 
is
 
deactivated
 
automatically:
-
 
o

n
 
switching
 
off
 
the
 
ignition,
-
 
i

f
 
the
 
engine
 
stalls,
-
 
i

f
 
no
 
manoeuvre
 
is
 
started
 
within
 
5
 
minutes
 
o

f
 
selection
 
of
 
the
 
type
 
of
 
manoeuvre,
-
 
a

fter
 
a
 
prolonged
 
stop
 
of
 
the
 
vehicle
 
during
 
a

 
manoeuvre,
-
 
i

f
 
the
 
road
 
wheel
 
anti-spin
 
regulation
 
(ASR)
 
s

ystem
 
is
 
invoked,
-
 
i

f
 
the
 
speed
 
of
 
the
 
vehicle
 
exceeds
 
the
 
s

tated
 
limit,
-
 
w

hen
 
the
 
driver
 
interrupts
 
movement
 
of
 
the
 
s

teering
 w

heel,
-
 
i

f
 
the
 
driver
 
presses
 
the
 
Park
 
Assist
 
control
 
(

or
 
the
 
Park
 
Assist
 
button
 
of
 
the
 
"Driving
 
a

ssistance"
 
menu
 
in
 
the
 
touch
 
screen
 
t

ablet),
-
 
i

f
 
correct
 
positioning
 
of
 
the
 
vehicle
 
is
 
not
 
p

ossible
 
(too
 
many
 
manoeuvres
 
needed
 
to
 
i

nsert
 
or
 
extract
 
the
 
vehicle),
-
 
i

f
 
the
 
driver's
 
door
 
is
 
open,
-
 
i

f
 
one
 
of
 
the
 
front
 
wheels
 
encounters
 
an
 
o

bstacle.
Switching off
The system is switched off automatically:
-  w hen   towing   a   trailer,
-
 
i
f   the   driver's   door   is   opened,
-
 
i
f   the   speed   of   the   vehicle   is   above   42   mph  
(

70   km/h).
To
  switch   the   system   of   for   a   prolonged   period,  
c

ontact   a   CITROËN   dealer   or   a   qualified  
w

orkshop.
Operating faults
In the event of a fault with the system, the   symbol   in   the   button   (located   in  
t

he   touch   screen   tablet)   changes   to  
a

lert   mode   and   the   warning   lamp  
f

lashes   and   then   goes   off.
Contact
 
a
  CITROËN   dealer   or   a   qualified  
w

orkshop.
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

208
Dashboard fuses
The two fuseboxes are placed in the lower dashboard,   at   the   glove   box. Fuse
N° Rating
(A) Functions
F01 10Brake   pedal   (switch   2),   Stop   &   Start.
F02 5Headlamp   beam   height   adjuster,   additional   heater   (Diesel),  
p

arking   sensors,   diagnostic   socket,   door   mirrors   (electric  
a

djustment),   Grip   Control.
F03 10Diesel   additive   pump,   electric   power   steering,   clutch   pedal  (
sw i tc h).
F04 5Rain
  and   sunshine   sensor.
F06 10Brake
  pedal   (switch   1),   diagnostic   socket.
F08 5Top
  of   steering   column   contacts   with   steering   mounted   controls.
F10 15Emergency
  call   /   Assistance   call.
F12 5Stop
  &   Start,   ABS,   ESC.
F13 5Parking
  sensors,   reversing   camera
F14 10Electronic
  gearbox,   switch   panel   (below   the   touch   screen  
t

ablet),   air   conditioning,   touch   screen   tablet.
F16 1512
  Volt   socket.
F18 20Radio.
Access to the fuses
F Unclip  the   cover   by   pulling   at   top   left,   then  r
ight.
Left hand fusebox
In the event of a breakdown