2015 Citroen C4 warning

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Lane departure warning system
Activation
Deactivation
DetectionOperating fault
System which detects the involuntary crossing o
f   longitudinal   traffic   lane   markings   on   the  
g

round   (solid   or   broken   line).
Sensors,
  fitted   below   the   front   bumper,   trigger  
a

  warning   if   the   vehicle   drifts   over   a   lane  
m

arking   (speed   higher   than   50   mph   (80   km/h)).
This
  system   is   particularly   useful   on   motor ways  
a

nd   main   roads. In
  the   event   of   a   malfunction,   the  
s

ervice   warning   lamp   comes   on,  
a

ccompanied   by   an   audible   signal  
a

nd   a   message   in   the   screen.
Contact   a   CITROËN   dealer   or   a   qualified  
w

orkshop.
The   lane   departure   warning   system  
c

annot   in   any   circumstances   replace  
t

he   need   for   vigilance   on   the   part   of   the  
d

river.
It
  is   necessary   to   observe   driving  
r

egulations   and   take   a   break   every  
two
  hours. The
  detection   may   be   impeded:
- i f   the   sensors   are   dirty   (mud,   snow...),
-
 i

f   the   markings   on   the   ground   are
 w

orn,
-
i

f there is little contrast between the
markings
  on   the   ground   and   the   road
 s

ur face.
You
  are   warned   by   the   vibration   of   the   driver's  
s

eat   cushion:
-
 
o
n   the   right-hand   side,   if   the   marking   on  
t

he   ground   has   been   crossed   on   the   right,
-
 
o
n   the   left-hand   side,   if   the   marking   on   the  
g

round   has   been   crossed   on   the   left.
No
  warning   is   transmitted   while   the   direction  
i

ndicator   is   active   and   for   approximately  
2

0 seconds after the direction indicator is
switched
  off.
A
  warning   may   be   transmitted   if   a   direction  
m

arking   (e.g.   arrow)   or   non-standard   marking  
(

e.g.   graffiti)   is   crossed.
F

Press this button, the indicator lamp comes on.
F Press
  this   button   again,   the   indicator   lamp  g
oes   off.
The
  status   of   the   system   remains   in   the  
m

emory   when   the   ignition   is   switched   off.
9
Driving

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blind spot sensors
This driving assistance system warns the driver of the presence of another vehicle in the blind
spot
  angle   of   their   vehicle   (areas   masked   from  
t

he   driver's   field   of   vision),   as   soon   as   this  
p

resents   a   potential   danger.
Operation
F On  switching   on   the   ignition,   or   engine  r
unning,   press   this   button   to   activate   the  
f

unction;   the   warning   lamp   comes   on.
Sensors
  fitted   in   the   front   and   rear   bumpers  
m

onitor   the   blind   spots.
A
 
warning
 
lamp
 
appears
 
in
 
the
 
door
 
mirror
 
on
 t
he
 
side
 
in
 
question:
-
 i
mmediately,
 
when
 
being
 
overtaken,
-

a

fter a delay of about one second, when
overtaking
 
a
 
vehicle
 
slowly.
This
 
system
 
is
 
designed
 
to
 
improve
 
s

afety
 
when
 
driving
 
and
 
is
 
in
 
no
 
c

ircumstances
 
a
 
substitute
 
for
 
the
 
use
 
o

f
 
the
 
interior
 
rear
 
view
 
mirror
 
and
 
door
 
m

irrors.
 
It
 
is
 
the
 
driver's
 
responsibility
 
to
 
c

onstantly
 
check
 
the
 
traffic,
 
to
 
assess
 
t

he distances and relative speeds
of other vehicles and to predict their
movements
 
before
 
deciding
 
whether
 
to
 
c

hange
 lan

e.
The
 
blind
 
spot
 
sensor
 
system
 
can
 
never
 
r

eplace
 
the
 
need
 
for
 
vigilance
 
on
 
the
 
p

art
 
of
 
the
 
driver.
driving

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No alert will be given in the following situations:
-  i n   the   presence   of   immobile   objects  
(

parked   vehicles,   barriers,   street   lamps,  
r

oad
 s
igns...),
-
 
w
ith   vehicles   moving   in   the   opposite  
d

irection,
-
 
d
riving   on   a   sinuous   road   or   a   sharp  
c

o r n e r,
The
 
alert
 
is
 
given
 
by
 
a
 
warning
 
lamp
 
which
 
c

omes
 
on
 
in
 
the
 
door
 
mirror
 
on
 
the
 
side
 
in
 
q

uestion
 
as
 
soon
 
as
 
a
 
vehicle
 
-
 
car,
 
lorry,
 
c

ycle -
 
is
 
detected
 
and
 
the
 
following
 
conditions
 
a

re
 
fulfilled:
-
 
a

ll
 
the
 
vehicles
 
must
 
be
 
moving
 
in
 
the
 
sa

me
 d

irection,
-
 
t

he
 
speed
 
of
 
your
 
vehicle
 
is
 
between
 
7
 
and
 
7

5
 
mph
 
(12
 
and
 
140
 
km/h),
-
 
w

hen
 
you
 
overtake
 
a
 
vehicle
 
with
 
a
 
speed
 
d

ifference
 
of
 
less
 
than
 
6
 
mph
 
(10
 
km/h),
-
 
w

hen
 
a
 
vehicle
 
overtakes
 
you
 
with
 
a
 
speed
 
d

ifference
 
of
 
less
 
than
 
15
 
mph
 
(25
 
km/h),
-
 
t

he
 
traffic
 
must
 
be
 
flowing
 
normally,
-
 
i

n
 
the
 
case
 
of
 
an
 
overtaking
 
manoeuvre,
 i
f
 
this
 
is
 
prolonged
 
and
 
the
 
vehicle
 
being
 ov
ertaken
 
remains
 
in
 
the
 
blind
 
spot,
-
 
y

ou
 
are
 
driving
 
on
 
a
 
straight
 
or
 
slightly
 
c

urved road,
-
 
y

our
 
vehicle
 
is
 
not
 
pulling
 
a
 
trailer,
 
a
 
c

aravan... -
 w hen   overtaking   (or   being   overtaken   by)   a  v
ery   long   vehicle   (lorry,   coach...)   which   is  
a

t   the   same   time   detected   at   the   rear   in   the  
b

lind   spot   angle   and   present   in   the   driver's  
f

orward field of vision,
-
 
i
n   very   heavy   traffic:   vehicles   detected   in  
f

ront and behind are confused with a lorry
or
  a   stationary   object,
-
 
w
hen   overtaking   quickly.
9
driving

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F To  deactivate   the   system,   press   this   button  a
gain;   the   warning   lamp   goes   off.
The
  state   of   the   system   remains   in   memory   on  
s

witching   off   the   ignition.
Operating fault
The system is automatically deactivated when   towing   with   a   towbar   approved   by  
CIT

ROËN. The
  system   may   suffer   temporary  
i

nterference in certain weather
conditions(rain,
 h
ail...).
In   particular,   driving   on   a   wet   sur face  
o

r   moving   from   a   dry   area   to   a   wet   area  
c

an   cause   false   alerts   (for   example,   the  
p

resence   of   a   fog   of   water   droplets   in  
t

he   blind   spot   angle   is   interpreted   as   a  
v

ehicle).
In bad or wintry weather, ensure that
the   sensors   are   not   covered   by   mud,   ice  
o

r   snow.
Take   care   not   to   cover   the   warning   zone  
i

n   the   door   mirrors   or   the   detection  
z

ones   on   the   front   and   rear   bumpers  
w

ith   adhesive   labels   or   other   objects;  
t

hey   may   hamper   the   correct   operation  o
f   the   system.
In   the   event   of   a   fault,   the   warning   lamp   in   the  
b

utton   flashes   then   goes   off.
Have   it   checked   by   a   CITROËN   dealer   or   a  
q

ualified
 w
orkshop.
Driving

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In addition to the rear parking sensors, the front parking   sensors   are   triggered   when   an   obstacle i

s detected in front and the speed of the vehicle is
still
  below   6   mph   (10   km/h).
The
  front   parking   sensors   are   interrupted   if   the
 v

ehicle   stops   for   more   than   three   seconds   in
 f

or ward   gear,   if   no   further   obstacles   are   detected
 o

r   when   the   speed   of   the   vehicle   exceeds   6   mph
 (

10   km/h).
Front parking sensors
Deactivation/Activation of the
front and rear parking sensors
The function is deactivated by pressing this button.   The   indicator   lamp   in   the   button  
comes
  on.
Pressing
  this   button   again   reactivates   the  
f

unction.   The   indicator   lamp   in   the   button  
goes
  off.
Operating fault
In the event of a malfunction of the   system,   when   reverse   gear  
i

s   engaged   this   warning   lamp   is  
d

isplayed   in   the   instrument   panel  
a

nd/or   a   message   appears   in   the  
s

creen,   accompanied   by   an   audible  
s

ignal   (short   beep).
Contact a CITR
oËn

dealer or a
qualified
 w

orkshop.
The
 
sound
 
emitted
 
by
 
the
 
speaker
 
(front
 
or
 
r

ear)
 
indicates
 
whether
 
the
 
obstacle
 
is
 
in
 
front
 
o

r
 
behind. The function will be deactivated
automatically
 
if
 
a
 
trailer
 
is
 
being
 
towed
 
o

r
 
a
 
bicycle
 
carrier
 
is
 
fitted
 
(vehicle
 
f

itted with a towbar or bicycle carrier
recommended
 
by
 
CITROËN). In bad weather or in winter, ensure
that the sensors are not covered with
mud,
  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.
driving

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Fuel tank
Capacity of the tank: approximately 60 litres.When the low fuel level in the
tank
  is   reached,   this   warning   lamp  
c

omes   on   in   the   instrument   panel,  
a

ccompanied   by   an   audible   warning  
a

nd   the   display   of   an   alert   message.  
W

hen   it   first   comes   on,   around
6
litres   of   fuel   remain   in   the   tank.
Low fuel level
Additions of fuel must be of at least 5 litres to be   registered   by   the   fuel   gauge.
Opening
  the   filler   cap   may   result   in   an   inrush   of  
a

ir.   This   vacuum   is   entirely   normal   and   results  
f

rom   the   sealing   of   the   fuel   system.
F

P
ress control A   until   the   automatic   opening  
o

f   the   fuel   flap   is   heard.
 T

his   control   remains   active   for   a   few  
m

inutes   after   switching   off   the   ignition.   If  
n

ecessary,   switch   the   ignition   on   again   to  
r

eactivate   it.
F
 
T
ake   care   to   select   the   pump   that   delivers  
t

he   correct   fuel   for   your   vehicle.If you are filling your tank to the top, do not
persist after the third cut- off; this could
cause your vehicle to malfunction. F

I
ntroduce the nozzle so as to push in the
metal
  non-return   flap   B.
F
 
M
ake   sure   that   the   nozzle   is   pushed   in   as  
f

ar   as   possible   before   starting   to   refuel  
(

risk   of   blowback).
F
 
M
aintain   this   position   while   refuelling.
F
 
P
ush   the   fuel   flap   to   close   it.
With Stop & Start, never refuel with the
system
 
in
 
STOP
 
mode;
 
you
 
must
 
switch
 
o

ff
 
the
 
ignition
 
with
 
the
 
key,
 
or
 
the
 
S

TART/STOP
 
button
 
if
 
your
 
vehicle
 
has
 
K

eyless
 
Entry
 
and
 
Starting.
Until
 
sufficient
 
fuel
 
has
 
been
 
added,
 
every
 
t

ime
 
the
 
ignition
 
is
 
switched
 
on,
 
this
 
warning
 
l

amp
 
appears,
 
accompanied
 
by
 
an
 
audible
 
s

ignal
 
and
 
an
 
alert
 
message.
 
When
 
driving,
 
t

his
 
audible
 
signal
 
and
 
the
 
display
 
of
 
this
 
a

lert
 
message
 
are
 
repeated
 
with
 
increasing
 
f

requency,
 
as
 
the
 
level
 
drops
 
towards
 
0 .
You
 
must
 
refuel
 
as
 
soon
 
as
 
possible
 
to
 
avoid
 
r

unning
 
out.
If
 
you
 
run
 
out
 
of
 
fuel
 
(Diesel),
 
refer
 
to
 
the
 
c

orresponding
 s

ection.
Refuelling
Checks

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Used products
The additive reservoir low level is indicated by:
To p p i n g u p
The reservoir must be topped up without delay by   a   CITROËN   dealer   or   a   qualified   workshop.
-
 
f
ixed   illumination   of   the   particle  
f

ilter   warning   lamp,   accompanied  
b

y   an   audible   signal   and   a  
m

essage   that   the   particle   filter  
a

dditive   level   is   too   low.
Additive level (Diesel with
particle filter)
Avoid prolonged contact of used oil or f
luids   with   the   skin.
Most
  of   these   fluids   are   harmful   to  
h

ealth   or   indeed   very   corrosive.
do n

ot discard used oil or fluids into
sewers
  or   onto   the   ground.
Take
  used   oil   to   a   CITROËN   dealer   or  
a

  qualified   workshop   (France)   or   to   an  
a

uthorised   waste   disposal   site.
Checks

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Checks
Particle filter (Diesel)
- fixed  illumination   of   the   particle  f
ilter   warning   lamp,   accompanied  
b

y   an   audible   signal   and   a  
m

essage   that   there   is   a   risk   of  
b

lockage   of   the   particle   filter.
The presence of this label, in particular with
the
 
Stop
 
&
 
Start
 
system,
 
indicates
 
the
 
use
 
of
 
a s

pecific 12 V lead-acid battery with special
technology
 
and
 
specification.
 
The
 
involvement
 
o

f
 
a
 
CITROËN
 
dealer
 
or
 
a
 
qualified
 
workshop
 
i

s
 
essential
 
when
 
replacing
 
or
 
disconnecting
 
t

he
 
battery. 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,   refer   to   the  
"

Additive
 
level"   section.
Unless
 
other wise
 
indicated,
 
check
 
these
 
components
 
in
 
accordance
 
with
 
the
 
manufacturer's
 
service
 
schedule
 
and   according   to   your   engine.
Other wise,
 
have
 
them
 
checked
 
by
 
a
 
CITROËN
 
dealer
 
or
 
a
 
qualified
 
workshop.
Air filter and passenger compartment filter
Refer to the manufacturer's s
ervice schedule for details of the
replacement
  intervals   for   these  
c

omponents.
Oil filter
Replace the oil filter each time the e ngine   oil   is   changed.
Refer
  to   the   manufacturer's  
s

ervice schedule for details of
the
  replacement   interval   for   this  
c

omponent.
12 V battery
The battery does not require any maintenance.
H owever,   check   that   the   terminals   are   clean a

nd   correctly   tightened,   particularly   in   summer
 a

nd   winter.
When carrying out work on the battery, refer to the "12 V battery" section for details of the
precautions
  to   be   taken   before   disconnecting  
t

he   battery   and   following   its   reconnection.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.The start of saturation of the particle filter is
indicated
  by:
on a n

ew vehicle, the first operations of
regeneration
  of   the   particle   filter   may   be  
a

ccompanied   by   the   smell   of   "burning",  
w

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

ehicle at very low speed or at idle,
you
  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.
10
Checks