2019 CITROEN C4 engine

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C4-cactus_en_Chap05_securite_ed01-2016
Dynamic stability control
(DSC) and anti-slip regulation
(ASR)The DSC system offers exceptional safety   in   normal   driving,   but   this   should  
n

ot   encourage   the   driver   to   take   extra  
r

isks   or   drive   at   high   speed.
The
  correct   operation   of   the   system  
d

epends on observation of the
manufacturer's
 r

ecommendations
 r

egarding   the   wheels   (tyres   and   rims),  
t

he   braking   components,   the   electronic  
c

omponents   and   the   CITROËN  
a

ssembly   and   operation   procedures.
After
  an   impact,   have   the   system  
c

hecked   by   a   CITROËN   dealer   or   a  
q

ualified
 w
orkshop.
Activation
These systems are activated automatically each   time   the   vehicle   is   started.
As
  soon   as   they   detect   a   problem   of   grip   or  
t

rajectory,   these   systems   act   on   the   operation   if  
t

he   engine   and   brakes.
Deactivation
In exceptional conditions (starting a vehicle which   is   bogged   down,   stuck   in   snow,   on   soft  
g

round...),   it   may   be   advisable   to   deactivate  
t

he   DSC   system,   so   that   the   wheels   can   move  
f

reely   and   regain   grip.
This
 
is
 
indicated
 
by
 
flashing
 
of
 
this
 
w

arning
 
lamp
 
in
 
the
 
instrument
 
panel.
Operating fault
But it is recommended that the system be r eactivated   as   soon   as   possible.
F

P
ress the button or,
depending
  on   version,  
t

urn   the   knob   to   this  
p

osition.
The indicator lamp in the button or the knob   comes   on:   the   DSC   system   no l

onger   acts   on   the   operation   of   the   engine.
Reactivation
The system is reactivated automatically each time   the   ignition   is   switched   back   on   or   from  
3

0 mph   (50   km/h).F
 
P
ress   the   button   again  
t

o   reactivate   it   manually.If
  this   warning   lamp   comes   on,  
a

ccompanied   by   an   audible   signal  
a

nd   a   message   in   the   screen,   this  
i

ndicates   a   fault   with   the   system.
Contact   a   CITROËN   dealer   or   a   qualified  
w

orkshop   to   have   the   system   checked.
5
Safety

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C4-cactus_en_Chap05_securite_ed01-2016
Grip control
Special patented traction control system which improves   traction   on   snow,   mud   and   sand.
This
  system,   the   operation   of   which   has   been  
o

ptimised   for   each   situation,   allows   you   to  
m

anoeuvre   in   most   conditions   of   poor   grip  
(

encountered
 d
uring
 t
ouring
 u
se).
The accelerator pedal should be pressed
sufficiently
 
t
o  
a
llow  
t
he  
s
ystem  
t
o  
u
se  
t
he  
p
ower  
o

f   the   engine.   Operation   at   high   engine   speeds  
i

s   completely   normal.
Associated with all-seasons M+S (Mud and
Snow)
  205/50   R   17   tyres,   this   system   offers  
a

  compromise   between   safety,   adhesion   and  
t

raction.   These   tyres   work   equally   well   in   winter  
a

nd   summer.
A five-position selector allows you to choose
the
  setting   best   suited   to   the   driving   conditions  
en

countered.
An
  indicator   lamp   associated   with   each   mode  
c

omes   on   to   confirm   your   choice.
A specific and additional display appears
temporarily
  in   the   touch   screen   to   confirm   the  
s

election   made   with   the   knob. Every
  time   the   ignition   is   switched   off,  
t

he   system   automatically   resets   to   this  
m

ode.
Differents
  modes   are   provided:
Standard (ESC)
This mode is calibrated for a low level of wheel s
pin,   based   on   the   different   levels   of   grip  
n

ormally   encountered   on   the   road.
F
 
P
lace   the   dial   in   this   position.
Snow
This mode adapts its strategy to the conditions of   grip   encountered   for   each   of   the   two   front  
w

heels   on   moving   off.
(mode
  active   up   to   30   mph   (50   km/h))
F
 
P
lace   the   dial   in   this   position.
Safety

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A few driving recommendations
Observe the driving regulations at all times and remain   vigilant   whatever   the   traffic   conditions.
Pay
  close   attention   to   the   traffic   and   keep   your  
h

ands on the wheel so that you are ready to
react
  at   any   time   to   any   eventuality.
On
  a   long   journey,   a   break   every   two   hours   is  
s

trongly
 re
commended.
In
  difficult   weather,   drive   smoothly,   anticipate  
t

he   need   to   brake   and   increase   the   distance  
f

rom   other   vehicles.
Driving on flooded
roads
We strongly advise against driving on flooded roads,   as   this   could   cause   serious   damage  
t

o   the   engine   or   gearbox,   as   well   as   to   the  
e

lectrical   systems   of   your   vehicle.If
  you   are   obliged   to   drive   through   water:
-  
c
heck   that   the   depth   of   water   does   not  
e

xceed   15   cm,   taking   account   of   waves  
t

hat   might   be   generated   by   other   users,
-  
d
eactivate   the   Stop   &   Start   system,
-
d
rive as slowly as possible without
stalling.   In   all   cases,   do   not   exceed   6   mph  
(

10 km/h),
- d o not stop and do not switch off the
engine.
On
  leaving   the   flooded   road,   as   soon   as  
c

ircumstances   allow,   make   several   light   brake  
a

pplications   to   dry   the   brake   discs   and   pads.
If in doubt on the state of your vehicle, contact
a
  CITROËN   dealer   or   a   qualified   workshop.
Important!
Never drive with the parking brake applied   -   Risk   of   overheating   and  
d

amage   to   the   braking   system!
Do
  not   park   or   run   the   engine   when  
s

tationary   in   areas   where   inflammable  
s

ubstances   and   materials   (dry   grass,  
d

ead   leaves...)   might   come   into  
c

ontact with   the   hot   exhaust   system   -  
R

isk   of   fire!
Never leave a vehicle unsupervised
with
  the   engine   running.   If   you   have  
t

o   leave   your   vehicle   with   the   engine  
r

unning,   apply   the   parking   brake  
a

nd   put   the   gearbox   into   neutral   or  
p

osition

N or P,
  depending   on   the   type  
o

f   gearbox.
6
Driving

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When towing
Distribution of loads
F Distribute the load in the trailer so that the heaviest   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
reducing
  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
to
  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
the
  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.
Driving

121
C4-cactus_en_Chap06_conduite_ed01-2016
Starting
The parking brake must be applied.
F
 
W

ith
 
a   manual   gearbox,   place   the   gear  
l

ever in neutral then depress the clutch
pedal
 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:
- position 1 (Stop):
  insert   and   removing  
the
  key,
-
position 2 (Ignition on) :
  steering   column  
u

nlocked,   ignition   on,   Diesel   preheating,  
e

ngine
 r
unning,
-
position 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.
6
Driving

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C4-cactus_en_Chap06_conduite_ed01-2016
F With  a   Diesel   engine,   turn   the   key   to  p
osition 2 ,
  ignition   on,   to   operate   the  
eng

ine
 p
re-heating
 s
ystem.
Wait until this warning lamp goes off in the instrument   panel   then   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.
In wintry conditions, the warning lamp can   stay   on   for   a   longer   period.   When  
t

he   engine   is   hot,   the   warning   lamp  
d

oes   not   come   on. In
  temperate   conditions,   do   not   leave  
t

he   engine   at   idle   to   warm   up   but   move  
o

ff   straight   away   and   drive   at   moderate  
s

peed.
Never   leave   the   engine   running   in  
a

n   enclosed   area   without   adequate  
v

entilation:
 in
ternal
 c
ombustion
 e

ngines   emit   toxic   exhaust   gases,  
s

uch   as   carbon   monoxide.   Danger   of  i
ntoxication   and   death.
In very severe wintry conditions
(temperatures
  below   -23°C),   to   ensure  
t

he correct operation and durability of
the
  mechanical   components   of   your  
v

ehicle,   engine   and   gearbox,   it   is  
n

ecessary   to   leave   the   engine   running  
f

or   4   minutes   before   moving   off.
If
  the   engine   does   not   start   straight  
a

way,   switch   off   the   ignition.   Wait   a   few  
m

oments   before   operating   the   starter  
m

otor   again.   If   the   engine   does   not  
s

tart   after   several   attempts,   do   not   keep  
t

rying:   you   risk   damaging   the   starter  
m

otor   or   the   engine.
Contact a CITROËN dealer or a
qualified
 w

orkshop.
Driving

123
C4-cactus_en_Chap06_conduite_ed01-2016
Key left in the "Ignition on" position
If the key has been left in the ignition switch at position 2 (Ignition on) ,
the
  ignition   will   be   switched   off  
a

utomatically   after   one   hour.
To
  switch   the   ignition   back   on,   turn   the  
k

ey   to   position   1 (Stop),
  then   back   to  
p

osition 2 (Ignition on) .
Never
 
switch
 
off
 
the
 
ignition
 
before
 
the
 
v

ehicle
 
is
 
at
 
a
 
complete
 
stop.
With
 
the
 
engine
 
off,
 
the
 
braking
 
and
 
s

teering
 
assistance
 
systems
 
are
 
also
 
c

ut
 
off:
 
risk
 
of
 
loss
 
of
 
control
 
of
 
the
 
v

ehicle.
When
 
you
 
leave
 
the
 
vehicle,
 
keep
 
the
 
k

ey
 
with
 
you
 
and
 
lock
 
the
 
vehicle.
To
 
facilitate
 
unlocking
 
of
 
the
 
steering
 c

olumn,
 
it
 
is
 
recommended
 
that
 
the
 w

heels
 
be
 
returned
 
to
 
the
 
straight
 
ahead
 p

osition
 
before
 
switching
 
off
 
the
 
engine.
Switching off
F Stop
  the   vehicle.
F  W ith   the   engine   running   at   idle,   turn   the   key  
t

o position 1 .
F
 
R
emove   the   key   from   the   ignition   switch.
F
 
T
o   lock   the   steering   column,   turn   the  
s

teering   until   it   locks.
F
 
C
heck   that   the   parking   brake   is   correctly  
a

pplied,   particularly   on   sloping   ground.For
  more   information,   refer   to   the  
"

Energy   economy   mode"   section.Energy economy mode
After switching off the engine (position 1- Stop),
for   a   maximum   of   30   minutes   you   can   still   use  
f

unctions   such   as   the   audio   and   telematic  
s

ystem,   the   wipers,   dipped   beam   headlamps,  
c

ourtesy   lamps,   ...
6
Driving

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C4-cactus_en_Chap06_conduite_ed01-2016
5-speed manual gearbox
Engaging reverse
gear
F Press  the   clutch   pedal   fully   down.
F  P ush   the   gear   lever   fully   to   the   right   then  
ba

ckwards.
Only
  engage   reverse   gear   when   the
 v

ehicle   is   stationary   with   the   engine   at   idle.
As a safety precaution and to facilitate
starting
  of   the   engine:
-

a
lways select neutral,
-
 
p
ress   the   clutch   pedal.
6
Driving