2014.5 Citroen C4 Owner's Manual

87
9. "REST" function: ventilation with the engine off
Even with the engine is off, you 
c an operate the ventilation for a
few
 m

inutes.
8. Air intake / Air recirculation
F Press this button for recirculation of   the   interior   air.   The   indicator l

amp   in   the   button   comes   on.
Air
 
recirculation   enables   the   passenger  
c

ompartment   to   be   isolated   from   exterior  
o

dours
 
and
  smoke.
F
a
s s

oon as possible, press this button
again
 
to   permit   the   intake   of   outside   air   and  
p

revent
  the   formation   of   condensation.   The  
i

ndicator   lamp   in   the   button   goes   off.
Avoid
  prolonged   operation   in   interior   air  
r

ecirculation   mode   (risk   of   misting   and  
d

eterioration   of   air   quality). For
  example,   while   you   are   away   from   the  
v

ehicle,   the   passengers   can   still   enjoy   some   air  
c

irculation   without   having   the   engine   running.
This
  function   is   available   after   switching   on   the  
i

gnition,   as   well   as   after   stopping   the   engine.
The
  period   that   the   function   is   available  
d

epends   on   the   state   of   charge   of   the   battery.
You can activate the "REST" function while the
air
  conditioning   control   screens   are   on.On switching on the engine
-
 T he   control   screens   come   on:   the   function  
i

s   available.
-
 
P
ressing   the   REST button activates the
ventilation
  for   a   few   minutes.   Activation   of  
t

he   function   is   confirmed   by   the   display   of  
t

wo   dashes   in   the   control   screens   and   four  
a

ir   flow   level   indicator   lamps.
-
 
T
he   function   can   be   deactivated   and  
r

eactivated   if   the   control   screens   are   on.
-
 
T
he   screens   go   off   at   the   end   of   this  
p

eriod.
4
Comfort

88
Switching the system off
On stopping the engine
- W hile   the   control   screens   remain   on:   the  
f

unction   is   available.
-
 
P
ressing   the   REST button activates the
ventilation
  for   a   few   minutes.   Activation   of  
t

he   function   is   confirmed   by   the   display   of  
t

wo   dashes   in   the   control   screens   and   four  
a

ir   flow   level   indicator   lamps.
 L

ocking   the   vehicle   has   no   effect   on   this  
f

unction.
-
 
T
he   control   screens   go   off   at   the   end   of   this  
p

eriod.
 P

ressing   again   before   the   end   of   the   period  
i

nterrupts   off   the   ventilation   definitively:   the  
c

ontrol   screens   go   off   and   the   function   is  
n

o   longer   available. F

T
urn the air flow control to the
left   until   all   of   the   indicator  l
amps   go   off.
This   action   switches   off   the   air   conditioning   and  
th

e
 v
entilation.
Temperature
  related   comfort   is   no   longer  
a

ssured   but   a   slight   flow   of   air,   due   to   the  
m

ovement   of   the   vehicle,   can   still   be   felt.
F
 
M
odify   the   settings   (temperature,   air   flow  
o

r   air   distribution)   or   press   the   "AUTO"
button
  to   reactivate   the   system   with   the  
v

alues   set   before   it   was   switched   off.
Avoid
  prolonged   operation   in   interior  
a

ir   recirculation   mode   or   driving   for  
l

ong   periods   with   the   system   off   (risk   of  
m

isting   and   deterioration   of   air   quality).
This
  switch   does   not   operate   the   air  
c

onditioning,   only   the   air   fan.
When
  the   "REST"   function   is   activated,  
y

ou   cannot   modify   the   temperature,   air  
f

low   and   distribution   settings:   these   are  
c

ontrolled   automatically   according   to  
t

he
 a
mbient
 t
emperature.
This function is not available in the
STOP
  mode   of   Stop   &   Start.
Comfort

89
Front demist - defrost
These markings on the control panel indicate the control positions for rapid demisting or defrosting   of   the   windscreen   and   side   windows.
With manual air
conditioning
F Put  the   temperature,   air   flow   and   distribution c
ontrols   to   the   dedicated   marked   position.
F
 
P
ut   the   air   intake   control   to   the   "Exterior   air  
i

ntake"   position  
 
(

indicator   lamp   on   the   control   off).
F
 
S
witch   on   the   air   conditioning   by   pressing
 t

he "A /C "
 

button;   the   warning   lamp   in   the
 b

utton   comes   on.
With digital dual-zone air
conditioning
Automatic visibility programme
F Select this programme to demist or defrost the windscreen   and   side   windows   as   quickly   as p

ossible.
The
 
system   automatically   manages   the   air
 c

onditioning,   air   flow   and   air   intake,   and   provides
 o

ptimum   distribution   towards   the   windscreen   and
 si

de
 w
indows.
F To   stop   the   programme,   press   either   the "
visibility"  button   again   or   "AUTO", the
warning
  lamp   on   the   button   goes   off   and   the
 w

arning   lamp   on   the   "AUTO" button
comes
  on.
The
  system   starts   again   with   the   values   in   use
 b

efore  
i
t  
w
as  
ov
erridden  
b
y  
t
he  
v
isibility  
p
rogramme.
With Stop & Start, when demisting has been   activated,   the   STOP   mode   is   not  
a

vailable.
With
 
Stop
 
&
 
Start,
 
when
 
the
 
demisting,
 
a

ir
 
conditioning
 
and
 
air
 
flow
 
functions
 
a

re
 
activated,
 
STOP
 
mode
 
is
 
not
 a
vailable.
4
Comfort

90
Rear screen demist - defrost
The control button is located on the air conditioning system control panel.
Switching on
The rear screen demisting/defrosting can only operate   when   the   engine   is   running.
F
 
P
ress   this   button   to   demist /defrost   the  
r

ear   screen   and   (depending   on   version)  
t

he   door   mirrors.   The   indicator   lamp  
a

ssociated   with   the   button   comes   on.
Switching off
The demisting/defrosting switches off automatically to   prevent   an   excessive   consumption   of   current.
F It  is   possible   to   stop   the   demisting/defrosting o
peration   before   it   is   switched   off   automatically b

y   pressing   the   button   again.   The   indicator
 l

amp   associated   with   the   button   goes   off.
F Switch  off   the   demisting/defrosting  o
f   the   rear   screen   and   door   mirrors  
a

s soon as appropriate, as lower
current
  consumption   results   in  
r

educed
 f
uel
 c
onsumption.
Comfort

91
Front seats
Manual adjustments
Forwards-backwardsSeat heightSeat backrest angle
F Raise  the   control   and   slide   the   seat  f
or wards   or   backwards.
F
 
R
elease   the   control   to   lock   the   position.F
 P ull   the   control   upwards   to   raise   or   push  i
t   downwards   to   lower,   as   many   times   as  
n

ecessary,   to   obtain   the   position   required.F
 T urn   the   control   knob   to   adjust   the   seat  b
ackrest   angle.
As
  a   safety   measure,   seat   adjustments  
s

hould   only   be   done   when   stationary.
Before   moving   the   seat   backwards,   ensure   that   there   is   nothing   that   might   prevent   the   full  
t

ravel   of   the   seat,   so   as   to   avoid   the   risk   of   of   jamming   the   seat   caused   by   the   presence   of  
o

bjects   on   the   floor   behind   the   seat   or   rear   passengers.   If   the   seat   jams,   stop   the   movement  
i

mmediately.
4
Comfort

92
Driver's seat electric adjustments
Forwards-backwards
F Tilt  the   rear   part   of   the   control   upwards   or  d
ownwards   to   obtain   the   required   height.
F
 
T
ilt   the   front   part   of   the   control   upwards   or  
d

ownwards   to   obtain   the   required   angle.
Cushion height and angle
F Tilt  the   control   for wards   or   rear wards   to  a
djust   the   angle   of   the   seat   backrest.
Seat backrest angle
F Push  the   control   for wards   or   rear wards   to  s
lide   the   seat. Before
  moving   the   seat   backwards,   ensure   that   there   is   nothing   that   might   prevent   the   full  
t

ravel   of   the   seat,   so   as   to   avoid   the   risk   of   of   jamming   the   seat   caused   by   the   presence   of  
o

bjects   on   the   floor   behind   the   seat   or   rear   passengers.   If   the   seat   jams,   stop   the   movement  
i

mmediately.
The   electrical   functions   of   the   driver's   seat
 a

re   deactivated   approximately   one   minute
 a

fter   the   ignition   is   switched   off.
To   reactivate   them,   switch   on   the   ignition.
Comfort

93
Additional adjustments
Head restraint height and angle
F To  raise   a   head   restraint,   pull   it   upwards.
F  T o   lower   the   head   restraint,   press   the   lug   A
and
  the   head   restraint   at   the   same   time.
F
 
T
o   adjust   the   angle   of   the   head   restraint,   tilt  
i

ts   lower   part   for wards   or   rear wards.
Heated seats control
With the engine running, the front seats can be heated s eparately.
F
 
U
se   the   adjustment   dial,   placed   on   the   side  
o

f   each   front   seat,   to   switch   on   and   select  
t

he   level   of   heating   required:
0: O

f f.
1:

 
L
ow.
2:

  Medium.
3:

 
Hig
h.
Removing a head restraint
F To  remove   the   head   restraint,   press   the  l
ug A   and   pull   the   head   restraint   upwards.
F
 
T
o   put   the   head   restraint   back   in   place,  
e

ngage   the   head   restraint   stems   in   the  
o

penings   keeping   them   in   line   with   the   seat  
b

ack   and   press   the   lug   A   at   the   same   time.
The
 
head
 
restraint
 
is
 
fitted
 
with
 
a
 
frame
 
w

ith
 
notches
 
which
 
prevents
 
it
 
from
 
l

owering;
 
this
 
is
 
a
 
safety
 
device
 
in
 
case
 
o

f
 
impact.
The adjustment is correct when the
upper edge of the head restraint is
level with the top of the head. Never
  drive   with   the   head   restraints  
r

emoved;   they   must   be   in   place   and  
adj

usted
 c
orrectly.
4
Comfort

94
Manual lumbar adjustment
F Turn  the   knob   to   obtain   the   desired   level   of  l
umbar sup port. This
  function   provides   a   back   massage;   it   only  o
perates   when   the   engine   is   running.
F  P ress   the   switch   to   activate   the   function.
The
  warning   lamp   on   the   switch   comes   on   and  
t

he   massage   function   is   activated   for   a   period  
o

f   60   minutes.   During   this   time,   massage   is  
p

er formed   in   6   cycles   of   10   minutes   each   cycle  
(

6   minutes   of   massage   followed   by   4   minutes  
b

reak).
After
  an   hour,   the   function   is   automatically  
d

eactivated.   The   warning   lamp   in   the   switch  
g

oes   off.
Deactivation
You can deactivate the massage function at any   time   by   pressing   the   switch.   The   movement  
i

n   progress   continues   until   the   initial   non-
massage
  position   is   reached.
Massage function
Electric lumbar adjustment
F Press the front or rear of the control to obtain   the   desired   lumbar   support.
Comfort