2016 Citroen C4 RHD sensor

88
Automatic day/night model
By means of a sensor, which measures the light f rom t he r ear o f t he v ehicle, t his s ystem au

tomatically
 a
nd
 p
rogressively
 c
hanges
 be

tween
 t
he
 d
ay
 a
nd
 n
ight
 u
ses.
Rear view mirror
Manual day/night model
Adjustment
F Adjust the m irror s o t hat t he g lass i s 
d irected c orrectly i n t he " day" p osition.
Day/night position
F Pull the lever t o c hange t o t he " night" a nti-
dazzle p osition.
F
 Pu

sh
 t
he
 l
ever
 t
o
 c
hange
 t
o
 t
he
 
n

ormal
 "
day"
 p
osition. In
 o

rder
 t
o
 e
nsure
 o
ptimum
 v
isibility
 du
ring y our m anoeuvres, t he m irror li
ghtens a utomatically w hen r everse gea

r
 is engag
ed.
Adjustable
 m

irror
 p
roviding
 a c
entral
 r
ear ward
 v
iew.
Equipped
 w
ith
 a
n
 a
nti-dazzle
 s
ystem,
 w
hich
 d
arkens
 t
he
 m
irror
 g
lass
 a
nd
 r
educes
 t
he
 n
uisance
 t
o
 th

e
 d
river
 c
aused
 b
y
 t
he
 s
un,
 h
eadlamps
 f
rom
 o
ther
 v
ehicles...
Ease of use and comfort

126
Automatic illumination of
headlamps
The sidelamps and dipped beam headlamps are s witched o n a utomatically, w ithout a ny ac

tion
 o
n
 t
he
 p
art
 o
f
 t
he
 d
river,
 w
hen
 a l
ow
 l
evel
 of e

xternal
 l
ight
 i
s
 d
etected
 o
r
 i
n
 c
ertain
 c
ases
 of a

ctivation
 o
f
 t
he
 w
indscreen
 w
ipers.
As
 s

oon
 a
s
 t
he
 b
rightness
 r
eturns
 t
o
 a
n
 ad

equate
 l
evel
 o
r
 a
fter
 t
he
 w
indscreen
 w
ipers
 ar

e
 s
witched
 o
ff,
 t
hese
 l
amps
 a
re
 s
witched
 o
ff
 au

tomatically
 a
nd
 t
he
 d
aytime
 r
unning
 l
amps
 co

me
 o
n.
Activation
F Turn ring A to the "AUTO" p osition. T he ac
tivation o f t he f unction i s c onfirmed b y th

e
 d
isplay
 o
f
 a m
essage.
Deactivation
F Turn ring A to a position other than
"AUTO" . T
he d eactivation o f t he f unction i s co

nfirmed
 b
y
 t
he
 d
isplay
 o
f
 a m
essage.
Operating fault
In the event of a fault with the
sunshine sensor, t he l ighting c ome on

,
 t
his
 w
arning
 l
amp
 i
s
 d
isplayed
 on t

he
 i
nstrument
 p
anel
 a
nd/or
 a me

ssage
 a
ppears
 i
n
 t
he
 s
creen,
 ac

companied
 b
y
 a
n
 a
udible
 s
ignal.
Contact
 a C

ITROËN
 o
r
 a q
ualified
 wo

rkshop
 w
orkshop.
In
 f

og
 o
r
 s
now,
 t
he
 s
unshine
 s
ensor
 ma

y
 d
etect
 s
ufficient
 l
ight.
 T
herefore,
 th

e
 l

ighting
 w
ill
 n
ot
 c
ome
 o
n
 auto

matically.
Do not cover the sunshine sensor,
coupled
 w

ith
 t
he
 r
ain
 s
ensor
 a
nd
 lo

cated
 i
n
 t
he
 c
entre
 o
f
 t
he
 w
indscreen
 be

hind
 t
he
 r
ear
 v
iew
 m
irror;
 t
he
 as

sociated
 f
unctions
 w
ould
 n
o
 l
onger
 be con

trolled.
Lighting and visibility

133
Automatic rain sensitive
windscreen wipers
Briefly push stalk A downwards.
Switching onSwitching off
Briefly push stalk A downwards aga
in.
The
 a

utomatic
 r
ain
 s
ensitive
 wi

ndscreen
 w
ipers
 m
ust
 b
e
 r
eactivated
 if t

he
 i
gnition
 h
as
 b
een
 o
ff
 f
or
 m
ore
 t
han
 on

e minute.
The
 i

nstruction
 i

s
 c

onfirmed
 b

y
 a w

iping
 c

ycle,
 ac

companied
 b

y
 i

llumination
 o

f
 t

his
 w

arning
 la

mp
 i

n
 t

he
 i

nstrument
 p

anel
 a

nd
 a

n
 a

ctivation
 mes

sage. The
 i

nstruction
 i
s
 c
onfirmed
 b
y
 t
his
 w
arning
 la

mp
 g

oing
 o
ff
 i
n
 t
he
 i
nstrument
 p
anel
 a
nd/or
 th

e
 d

isplay
 o
f
 a d
eactivation
 m
essage.
The
 w

indscreen
 w

ipers
 o

perate
 a

utomatically,
 wi

thout
 a

ny
 a

ction
 o

n
 t

he
 p

art
 o

f
 t

he
 d

river,
 i

f
 ra

in
 i

s
 d

etected
 (

sensor
 b

ehind
 t

he
 r

ear
 v

iew
 mi

rror),
 a

dapting
 t

heir
 s

peed
 t

o
 t

he
 i

ntensity
 o

f
 th

e
 r

ainfall.
Operating fault
If an automatic rain sensitive wiper malfunction oc
curs, t he w ipers w ill o perate i n i ntermittent mo

de.
Contact
 a C

ITROËN
 d
ealer
 o
r
 a q
ualified
 wo

rkshop. Do
 n

ot
 c
over
 t
he
 r
ain
 s
ensor,
 l
inked
 w
ith
 th

e
 s
unshine
 s
ensor
 a
nd
 l
ocated
 i
n
 t
he
 ce

ntre
 o
f
 t
he
 w
indscreen
 b
ehind
 t
he
 r
ear
 vi

ew
 m
irror.
Switch
 o

ff
 t
he
 a
utomatic
 r
ain
 s
ensitive
 wi

pers
 w
hen
 u
sing
 a
n
 a
utomatic
 c
ar
 w
ash.
In
 w

inter,
 i
t
 i
s
 a
dvisable
 t
o
 w
ait
 u
ntil
 t
he
 wi

ndscreen
 i
s
 c
ompletely
 c
lear
 o
f
 i
ce
 be

fore
 a
ctivating
 t
he
 a
utomatic
 r
ain
 sens

itive
 wi
pers.
4
Lighting and visibility

191
Blind spot sensors
This driving assistance system warns the driver of the p resence o f a nother v ehicle i n t he b lind sp

ot
 a
ngle
 o
f
 t
heir
 v
ehicle
 (
areas
 m
asked
 f
rom
 th

e
 d
river's
 f
ield
 o
f
 v
ision),
 a
s
 s
oon
 a
s
 t
his
 pr

esents
 a p
otential
 d
anger.
Operation
F On switching on t he i gnition, o r e ngine ru
nning, p ress t his b utton t o a ctivate t he fu

nction;
 t
he
 w
arning
 l
amp
 c
omes
 o
n.
Sensors
 f

itted
 i
n
 t
he
 f
ront
 a
nd
 r
ear
 b
umpers
 mo

nitor
 t
he
 b
lind
 s
pots.
A
 w

arning
 l

amp
 a

ppears
 i

n
 t

he
 d

oor
 m

irror
 o

n
 th
e s
ide i
n q
uestion:
- im
mediately, w
hen b
eing ov
ertaken,
-
 af

ter
 a d

elay
 o

f
 a

bout
 o

ne
 s

econd,
 w

hen
 ove

rtaking
 a v

ehicle
 s

lowly.
This
 s

ystem
 i

s
 d

esigned
 t

o
 i

mprove
 sa

fety
 w

hen
 d

riving
 a

nd
 i

s
 i

n
 n

o
 ci

rcumstances
 a s

ubstitute
 f

or
 t

he
 u

se
 of t

he
 i

nterior
 r

ear
 v

iew
 m

irror
 a

nd
 d

oor
 mi

rrors.
 I

t
 i

s
 t

he
 d

river's
 r

esponsibility
 t

o
 co

nstantly
 c

heck
 t

he
 t

raffic,
 t

o
 a

ssess
 th

e
 d

istances
 a

nd
 r

elative
 s

peeds
 of o

ther
 v

ehicles
 a

nd
 t

o
 p

redict
 t

heir
 mov

ements
 b

efore
 d

eciding
 w

hether
 t

o
 chan

ge
 lane

.
The
 b

lind
 s

pot
 s

ensor
 s

ystem
 c

an
 n

ever
 re

place
 t

he
 n

eed
 f

or
 v

igilance
 o

n
 t

he
 pa

rt
 o

f
 t

he
 d

river.
6
Driving

202
Parking sensors
The system is switched on by engaging reverse g ea r.
This
 i

s
 c
onfirmed
 b
y
 a
n
 a
udible
 s
ignal.
The
 s

ystem
 i
s
 s
witched
 o
ff
 w
hen
 y
ou
 c
ome
 o
ut
 of r

everse
 g
ear.
Rear parking sensors
Audible assistance
The proximity information is given by an intermittent a udible s ignal, t he f requency o f w hich in

creases
 a
s
 t
he
 v
ehicle
 a
pproaches
 t
he
 o
bstacle.
The
 s

ound
 e
mitted
 b
y
 t
he
 s
peaker
 (
right
 o
r
 l
eft)
 in

dicates
 t
he
 s
ide
 o
n
 w
hich
 t
he
 o
bstacle
 i
s
 l
ocated.
When
 t

he
 d
istance
 b
etween
 t
he
 v
ehicle
 a
nd
 th

e
 o
bstacle
 b
ecomes
 l
ess
 t
han
 a
pproximately
 th

irty
 c
entimetres,
 t
he
 a
udible
 s
ignal
 b
ecomes
 co

ntinuous.Visual assistance
This supplements the audible signal by displaying b ars i n t he s creen w hich m ove pr

ogressively
 n
earer
 t
o
 t
he
 v
ehicle.
When
 t

he
 o
bstacle
 i
s
 v
ery
 c
lose,
 t
he
 "
Danger"
 sy

mbol
 i
s
 d
isplayed
 i
n
 t
he
 s
creen.
This system cannot in an y ci rcumstances re place th
e n eed f or v igilance o n t he p art o f t he d river.
This system indicates the proximity of an obstacle ( person, v ehicle, t ree, g ate, e tc.) wh

ich
 c
omes
 w
ithin
 t
he
 f
ield
 o
f
 d
etection
 o
f
 se

nsors
 l
ocated
 i
n
 t
he
 b
umper.
Certain
 t

ypes
 o
f
 o
bstacle
 (
stake,
 r
oadworks
 co

ne,
 e
tc.)
 d
etected
 i
nitially
 w
ill
 n
o
 l
onger
 b
e
 de

tected
 a
t
 t
he
 e
nd
 o
f
 t
he
 m
anoeuvre,
 i
f
 t
hey
 ar

e
 l
ocated
 i
n
 b
lind
 s
pots
 i
n
 t
he
 s
ensors'
 f
ield
 of d

etection.
Driving

203
In addition to the rear parking sensors, the front parking s ensors a re t riggered w hen a n o bstacle is d

etected
 i
n
 f
ront
 a
nd
 t
he
 s
peed
 o
f
 t
he
 v
ehicle
 i
s
 st

ill
 b
elow
 6 m
ph
 (
10
 k
m/h).
The
 f

ront
 p
arking
 s
ensors
 a
re
 i
nterrupted
 i
f
 t
he
 ve

hicle
 s
tops
 f
or
 m
ore
 t
han
 t
hree
 s
econds
 i
n
 fo

r ward
 g
ear,
 i
f
 n
o
 f
urther
 o
bstacles
 a
re
 d
etected
 or w

hen
 t
he
 s
peed
 o
f
 t
he
 v
ehicle
 e
xceeds
 6 m
ph
 (1

0
 k
m/h).
Front parking sensors
The function is deactivated by pressing this button. T he i ndicator l amp i n t he b utton 
c
omes
 o
n.
Pressing
 t

his
 b
utton
 a
gain
 r
eactivates
 t
he
 fu

nction.
 T
he
 i
ndicator
 l
amp
 i
n
 t
he
 b
utton
 
g

oes
 o
ff.
Operating fault
In the event of a malfunction of the s ystem, w hen r everse g ear is e

ngaged
 t
his
 w
arning
 l
amp
 i
s
 di

splayed
 i
n
 t
he
 i
nstrument
 p
anel
 an

d/or
 a m
essage
 a
ppears
 i
n
 t
he
 sc

reen,
 a
ccompanied
 b
y
 a
n
 a
udible
 si

gnal
 (
short
 b
eep).
Contact
 a C

ITROËN
 d
ealer
 o
r
 a qu

alified
 wo
rkshop.
The
 s

ound
 e

mitted
 b

y
 t

he
 s

peaker
 (

front
 o

r
 re

ar)
 i

ndicates
 w

hether
 t

he
 o

bstacle
 i

s
 i

n
 f

ront
 or b

ehind. The
 f

unction
 w

ill
 b

e
 d

eactivated
 au

tomatically
 i

f
 a t

railer
 i

s
 b

eing
 t

owed
 or a b

icycle
 c

arrier
 i

s
 f

itted
 (

vehicle
 fi

tted
 w

ith
 a t

owbar
 o

r
 b

icycle
 c

arrier
 re

commended
 b

y
 C

ITROËN). In
 b

ad
 w
eather
 o
r
 i
n
 w
inter,
 e
nsure
 th

at
 t

he
 s
ensors
 a
re
 n
ot
 c
overed
 w
ith
 mu

d,
 i
ce
 o
r
 s
now.
 W
hen
 r
everse
 g
ear
 i
s
 en

gaged,
 a
n
 a
udible
 s
ignal
 (
long
 b
eep)
 in

dicates
 t
hat
 t
he
 s
ensors
 m
ay
 b
e
 d
irty.
Certain
 s

ound
 s
ources
 (
motorcycle,
 lo

rry,
 p
neumatic
 d
rill,
 e
tc.)
 m
ay
 t
rigger
 th

e
 a

udible
 s
ignals
 o
f
 t
he
 p
arking
 se

nsor
 s
ystem.
Deactivation/Activation of the
front and rear parking sensors
6
Driving

232
Accessories
Conversion kits
You can obtain an "Enterprise" kit to convert a trade v ehicle t o a p rivate c ar a nd v ice-versa.
"Comfort":
door deflectors, side window blinds, rear screen b lind, i nsulated m odule, c oat h anger fi

xed
 t
o
 h
ead
 r
estraint,
 r
eading
 l
amp,
 m
irror
 f
or
 ca

ravan,
 c
ruise
 c
ontrol,
 s
cented
 a
ir
 f
reshener
 an

d
 c
artridges,
 p
arking
 s
ensors...
"Transport systems":
boot carpet, boot liner, boot net, boot spacers,
transverse roof b ars, b icycle c arrier, s ki c arrier, ro

of
 b
oxes,
 t
owbars,
 t
owbar
 w
iring
 h
arnesses...
"Styling":
gear lever knobs, aluminium foot rest, alloy wheels, w heel e mbellishers, c hrome m irror sh

ells,
 c
hrome
 d
oor
  ap
erture
 f
inishers,
 d
oor
 s
ill
 fi

nishers,
 t
ailgate
 l
ower
 c
hrome
 f
inisher...
*
 To a

void
 a
ny
 r
isk
 o
f
 j
amming
 t
he
 p
edals:
-
 en

sure
 t
hat
 m
ats
 a
re
 c
orrectly
 p
ositioned
 an

d
 s
ecured,
-
 ne

ver
 f
it
 o
ne
 m
at
 o
n
 t
op
 o
f
  an
other.
"Security and safety":
anti-intrusion alarm, microwave sensor, anti-tilt sensor, s tolen v ehicle t racking s ystem, c hild se

ats
 a
nd
 b
ooster
 c
ushions,
 b
reathalyser,
 f
irst
 ai

d
 k
it,
 f
ire
 e
xtinguisher,
 w
arning
 t
riangle,
 h
igh
 vi

sibility
 v
est,
 d
og
 g
uard,
 p
et
 s
eat
 b
elt,
 w
heel
 se

curity
 b
olts,
 s
now
 c
hains,
 n
on-slip
 c
overs,
 fr

ont
 f
oglamp
 k
it...
"Protection":
mats*, seat covers compatible with  la teral ai
rbags, d oor s ill p rotectors, m ud f laps, d oor pr

otective
 r
ubbing
 s
trips,
 b
umper
 p
rotection
 st

rips, protective covers for pets, vehicle
cover...
If
 a t

owbar
 a

nd
 w

iring
 h

arness
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anufacturer's
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ecommendation
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arranty.
Practical information

3
Ease of use and comfort3
C4-2-additif_en_Chap03_ergonomie-et-confort_ed02-2015
Stop & Start
The heating and air conditioning systems only work when the engine is running.
To maintain a comfortable temperature in the passenger compartment, you can temporarily deactivate the Stop & Start system. For more information on Stop & Star t , refer to the corresponding section.
In order for these systems to be fully effective, follow the operation and maintenance guidelines below:  To obtain an even air distribution, take care not to obstruct the exterior air intake grilles located at the base of the windscreen, the nozzles, the vents and the air outlets, as well as the air extractor located in the boot.  Do not cover the sunshine sensor, located on the dashboard; this is used for regulation of the air conditioning system.  Operate the air conditioning system for at least 5 to 10 minutes, once or twice a month to keep it in per fect working order.  Ensure that the passenger compartment filter is in good condition and have the filter elements replaced regularly. We recommend the use of a combined passenger compartment filter. Thanks to its special active additive, it contributes to the purification of the air breathed by the occupants and the cleanliness of the passenger compartment (reduction of allergic symptoms, bad odours and greasy deposits).  To ensure correct operation of the air conditioning system, you are also advised to have it checked regularly as recommended in the maintenance and warranty guide.  If the system does not produce cold air, switch it off and contact a CITROËN dealer or a qualified workshop. When towing the maximum load on a steep gradient in high temperatures, switching off the air conditioning increases the available engine power and so improves the towing ability.
The condensation created by the air conditioning results in a discharge of water under the vehicle which is per fectly normal.
Contains fluorinated greenhouse gas R134A. Depending on version and country of sale, the air conditioning system contains fluorinated greenhouse gas R134A. Gas capacity 0.425 kg (+/- 0.025 kg), GWP index 1 430 t (equivalent CO2: 0.608 t).
If after an extended stop in sunshine, the interior temperature is very high, first ventilate the passenger compartment for a few moments. Put the air flow control at a setting high enough to quickly change the air in the passenger compartment.
Recommendations for ventilation and air conditioning