engine Citroen DS3 RHD 2015 1.G Service Manual

Stop & StartThe Stop & Start system puts the engine temporarily into standby - STOP mode - during stops in the traffic (red lights, traffic jams, or other...). The engine   restarts   automatically   -   START   mode   -   as   soon   as   you   want   to   move   off.   The   restart   takes   place   instantly,   quickly   and   silently.
Per fect
  for   urban   use,   the   Stop   &   Start   system   reduces   fuel   consumption   and   exhaust   emissions   as   well   as   the   noise   level   when   stationary.
Operation
going into engine STOP mode
For your comfort, during parking manoeuvres,   STOP   mode   is   not  
a

vailable   for   a   few   seconds   after  
c

oming   out   of   reverse   gear.
STOP
  mode   does   not   affect   the  
f

unctionality of the vehicle, such as for
example,
  braking,   power   steering...
Never
  refuel   with   the   engine   in   STOP  
m

ode;   you   must   switch   off   the   ignition  
w

ith   the   key.
The "ECO" 
warning
 
lamp
 
comes
 o
n
 
in
 
the
 
instrument
 
panel
 
and
 
the
 
e

ngine
 
goes
 
into
 
standby:
-
 
w

ith a manual gearbox ,
 
at
 
speeds
 
below
 
1

2
 
mph
 
(20
 
km/h),
 
when
 
you
 
put
 
the
 
gear
 
l

ever
 
into
 
neutral,
 
and
 
you
 
release
 
the
 
c

lutch
 
pedal.
-
 
w

ith a 5 or 6-speed electronic gearbox ,
when
 
stationary
 
or
 
at
 
speeds
 
below
 
5
 
mph
 
(

8
 
km/h)
 
(depending
 
on
 
version),
 
when
 
y

ou
 
press
 
the
 
brake
 
pedal
 
or
 
put
 
the
 
gear
 
s

elector in position
n
.
A

 
time
 
counter
 
calculates
 
the
 
sum
 o

f
 
the
 
periods
 
in
 
STOP
 
mode
 
during
 a

 
journey.
 
It
 
rests
 
itself
 
to
 
zero
 
every
 t

ime
 
the
 
ignition
 
is
 
switched
 
on
 
with
 t

he
 
key. STOP
  mode   is   not   invoked   when:
-  t he   driver's   door   is   open,
-
 
t
he   driver's   seat   belt   is   not   fastened,
-
 
t
he   vehicle   has   not   exceeded   6   mph  
(

10 km/h)   since   the   last   engine   start   using  
t

he   key,
-
 
t
he   engine   is   needed   to   maintain   a  
c

omfortable   temperature   in   the   passenger  
c

ompartment,
-
 
d
emisting   is   active,
-
 
s
ome   special   conditions   (battery   charge,  
e

ngine   temperature,   braking   assistance,  
a

mbient   temperature...)   where   the   engine   is  
n

eeded   to   assure   control   of   a   system.
Special cases: STOP mode not
available
The "ECO" warning   lamp   flashes   for  a
  few   seconds   then   goes   off.
This operation is perfectly normal.

121
going into engine START mode
The "ECO" warning   lamp   goes   off  a
nd   the   engine   starts:
-
 
w

ith a manual gearbox , when you
depress
  the   clutch   pedal,
-
 
w

ith a 5-speed or 6-speed electronic
gearbox :
●
 
g

ear   selector   in   position   A or M, when
you
  release   the   brake   pedal,
●
 
o

r
 
gear   selector   in   position  n  and   the  
b

rake   pedal   released,   when   you   move  
t

he
  gear   selector   to   position   A or M,
●
 
o

r
 
when   you   engage   reverse   gear.
Special cases: START invoked
automatically
If the system has been deactivated in   STOP   mode,   the   engine   restarts  
i

mmediately.
At
 
any   time,   press   the   "ECO OFF" switch to
deactivate   the   system.
This
 
is   confirmed   by   the   switch   warning   lamp  
c

oming   on   accompanied   by   a   message   in   the  
sc

reen.
deactivation
For reasons of safety and for your comfort, S
TART   mode   is   invoked   automatically   when:
-
 
y
ou   open   the   driver's   door,
-
 
y
ou   unfasten   the   driver's   seat   belt,
-
 
t
he   speed   of   the   vehicle   exceeds   7   mph  
(

11 km/h)   with   the   electronic   gearbox  
s

ystem,
-
 
s
ome   special   conditions   (battery   charge,  
e

ngine   temperature,   braking   assistance,  
a

mbient   temperature...)   where   the   engine   is  
n

eeded   for   control   of   a   system.
The "ECO"
 

warning   lamp   flashes   for  
a

  few   seconds,   then   goes   off.
This operation is perfectly normal.
With
 
a
 
manual
 
gearbox
 
in
 
STOP
 
m

ode,
 
if
 
you
 
engage
 
a
 
gear
 
without
 
f

ully
 
depressing
 
the
 
clutch
 
pedal,
 
a
 
m

essage
 
is
 
displayed
 
asking
 
you
 
to
 
f

ully
 
depress
 
the
 
clutch
 
pedal
 
so
 
that
 
t

he
 
engine
 
can
 
restart.
driving

The system is reactivated automatically at   every   new   start   using   the   key.
Reactivation
This system requires a battery with a special specification   and   technology   (reference  
n

umbers   available   from   a   CITROËN   dealer   or   a  
q

ualified
 w
orkshop).
Fitting
  a   battery   not   listed   by   CITROËN  
i

ntroduces   the   risk   of   malfunction   of   the  
s

ystem.
In
 
the
 
event
 
of
 
a
 
fault
 
with
 
the
 
system,
 
the
 
"

ECO OFF"
 
switch
 
warning
 
lamp
 
flashes
 
then
 
c

omes
 
on
 
continuously.
Have
 
it
 
checked
 
by
 
a
 
CITROËN
 
dealer
 
or
 
a
 
q

ualified
 w

orkshop.
In
 
the
 
event
 
of
 
a
 
fault
 
in
 
STOP
 
mode,
 
the
 
v

ehicle
 
may
 
stall.
 
All
 
of
 
the
 
instrument
 
panel
 
w

arning
 
lamps
 
come
 
on.
 
It
 
is
 
then
 
necessary
 
t

o
 
switch
 
off
 
the
 
ignition
 
and
 
start
 
the
 
engine
 
a

gain
 
using
 
the
 
key.
Operating fault Maintenance
Before doing anything under the b
onnet,   deactivate   the   Stop   &   Start  
s

ystem   to   avoid   any   risk   of   injury  
r

esulting   from   automatic   operation   of  
S

TART   mode.
The
  Stop   &   Start   system   makes   use  
o

f   advanced   technology.   All   work  
o

n   this   type   of   battery   must   be   done  
b

y   a   CITROËN   dealer   or   a   qualified  
w

orkshop.
Press the "ECO OFF"
 
switch
 
again.
The
 
system
 
is
 
active
 
again;
 
this
 
is
 
confirmed
 
b

y
 
the
 
switch
 
warning
 
lamp
 
going
 
off,
 
a

ccompanied
 
by
 
a
 
message
 
in
 
the
 
screen.

123
Hill start assist
System which holds your vehicle temporarily (approximately   2   seconds)   when   starting   on   a  
s

lope,   the   time   it   takes   to   move   your   foot   from  
t

he   brake   pedal   to   the   accelerator   pedal.
This
  function   is   only   active   when:
-
 
t
he   vehicle   is   completely   stationary,   with  
y

our   foot   on   the   brake   pedal,
-
 
c
ertain   conditions   on   a   slope   are   met,
-
 
w
ith   the   driver’s   door   closed.
The hill start assist function cannot be
deactivated.
On an ascending slope, with the vehicle
stationary, the vehicle is held momentarily
when you release the brake pedal:
-
 
p
rovided   you   are   in   automated   mode  
(

position
 A)

  or   in   manual   mode   (position   M)
 
w

ith   an   electronic   gearbox.
Do
  not   leave   the   vehicle   while   it   is  
b

eing   held   in   the   hill   start   assist   phase.
If
  you   need   to   leave   the   vehicle   with  
t

he   engine   running,   manually   apply  
t

he   parking   brake   then   ensure   that   the  
p

arking   brake   warning   lamp   is   on   (not  
f

lashing)   in   the   instrument   panel.Operation
On a descending slope, with the vehicle
stationary and reverse gear engaged, the
vehicle is held momentarily when you
release the brake pedal.
Operating fault
If a malfunction of the system occurs, these warning   lamps   come   on.   Contact   a   CITROËN  
d

ealer   or   a   qualified   workshop   to   have   the  
s

ystem   checked.
driving

A. Courtesy lamp
B. Map reading lamps
Courtesy lam p
In this position, the courtesy lamp c
omes   on   gradually:
Courtesy lamp
- when  the   vehicle   is   unlocked,
-  w hen   the   key   is   removed   from   the   ignition,
-
 
w
hen   a   door   is   opened,
-
 
w
hen   the   remote   control   locking   button   is  
a

ctivated,   in   order   to   locate   your   vehicle.
It
  switches   off   gradually:
-
 
w
hen   the   vehicle   is   locked,
-
 
w
hen   the   ignition   is   switched   on,
-
 
3
0   seconds   after   the   last   door   is   closed.
Permanently
  off.
Permanent
 l

ighting.
With the "permanent lighting" mode, the duration of lighting   varies,   depending   on   the   circumstances:
- with the ignition off, approximately ten minutes,
- in energy economy mode, a pproximately   thirty   seconds,
- with the engine running, unlimited.
Map reading lamps
F With  the   ignition   on,   press   the  c
orresponding s witch.

145
Interior mood lightingThe dimmed passenger compartment lighting improves visibility in the vehicle when the light 
i s   poor.
Switching on
At night, the illumination of footwells and the central   dashboard   storage   compartment   comes  
o

n   automatically   when   the   sidelamps   are  
s

witched   on.
Switching off
The interior mood lighting switches off automatically   when   the   sidelamps   are  
switched
  off.
It
  can   be   switched   off   manually   using   the  
i

nstrument   panel   lighting   rheostat   button.
F
 
W
ith   the   lighting   on,   press   several   times   on  
t

he   left   hand   button   of   the   instrument   panel  
t

o   progressively   reduce   the   dashboard  
l

ighting   level.
F
 
P
ress   again   to   reduce   the   lighting   level  
t

o   the   minimum   and   switch   off   the   interior  
m

ood
 l
ighting. This
  comes   on   automatically   when   the   boot   is  
o

pened   and   goes   off   automatically   when   the  
b

oot   is   closed.
Boot lamp
The lighting time varies according to the c ircumstances:
-
 
w
hen   the   ignition   is   off,
 a

pproximately   ten minutes,
-
 
i
n   energy   economy   mode,
 a

pproximately   thirty seconds,
-
 
w
hen   the   engine   is   running,   no   limit.
Visibility

155
Emergency braking assistance
System which, in an emergency, enables you to   obtain   the   optimum   braking   pressure   more  
q

uickly,   thus   reducing   the   stopping   distance.
Activation
It is triggered by the speed at which the brake pedal   is   pressed.
The
  effect   of   this   is   a   reduction   in   the  
r

esistance   of   the   pedal   and   an   increase   in  
b

raking
 e
fficiency.
When
  braking   in   an   emergency,   press  
f

irmly   without   releasing   the   pressure.
Trajectory control systems
Anti-slip regulation (ASR)
and dynamic stability
control (
d
SC)
The anti-slip regulation (also known as traction control)   optimises   traction   to   prevent   skidding  
o

f   the   wheels,   by   acting   on   the   brakes   of   the  
d

riving   wheels   and   on   the   engine.
The electronic stability control acts on the
brake
  of   one   or   more   wheels   and   on   the   engine  
t

o   keep   the   vehicle   on   the   trajectory   required  
b

y   the   driver,   within   the   limits   of   the   laws   of  
p

hysics.Activation
These systems are activated automatically each   time   the   vehicle   is   started.
They
  come   into   operation   in   the   event   of   a   grip  
o

r
 t
rajectory
 pro
blem.
This
  is   indicated   by   flashing   of   this  
w

arning   lamp   in   the   instrument   panel.
Safety

deactivation
In extremely severe conditions (deep snow, mud...),   when   it   is   not   possible   to   move   off,   it  
m

ay   be   useful   to   temporarily   deactivate   the  
s

ystems,   so   that   the   wheels   can   spin   freely   and  
r

egain   grip.
F
 
P
ress   this   button,   located   on   the   left   below  
t

he   steering   wheel.
Illumination
  of   the   lamp   in   the   button   indicates  
t

hat   the   systems   are   deactivated.
Reactivation
These systems are reactivated automatically each   time   the   ignition   is   switched   back   on  
o

r   from   30   mph   (50   km/h)   except   1.6   litre  
(

THP 150,   THP   155   and   THP   160)   and  
R

ACING   petrol   engines.
F
 
P
ress   this   button   again   to   reactivate   them  
m

anually.
Operating fault
The DSC/ASR systems offer exceptional  s afety  i n  n ormal  d riving,  b ut  
t

his   should   not   encourage   the   driver   to  
t

ake   extra   risks   or   drive   at   high   speed.
The
  correct   functioning   of   these  
s

ystems   depends   on   observation   of   the  
ma

nufacturer's
 r
ecommendations
 o
n:
-
 
w
heels   (tyres   and   rims),
-
 
b
raking   components,
-
 el

ectronic
 c
omponents,
-
 
a
ssembly   and   repair   procedures.
After
  an   impact,   have   these   systems  
c

hecked   by   a   CITROËN   dealer   or   a  
q

ualified
 w
orkshop.
Illumination
  of   this   warning   lamp   in   the
 i

nstrument   panel   and   the   lamp   in   the
 b

utton,   accompanied   by   an   audible
 s

ignal   and   a   message,   this   indicates   a
 m

alfunction   of   these   systems.
Have
 
it   checked   by   a   CITROËN   dealer   or   a  
q

ualified
 w
orkshop.

Operation
When your vehicle is too close to or
approaches  the   vehicle   ahead   too   quickly   the  
s

ystem   automatically   applies   the   brakes   to  
a

void   a   collision.
The
  collision   can   be   avoided   automatically   if   the
 d

ifference   in   speed   between   your   vehicle   and   the
 v

ehicle   ahead   does   not   exceed   9   mph   (15   km/h).
Above
  this   threshold,   the   system   will   do   what
 i

s   possible   to   avoid   or   reduce   the   accident   by
 l

owering   the   speed   of   impact.
The
  automatic   braking   may   bring   the   vehicle   to  
a

  complete   stop   if   the   situation   requires   it.
In
  this   case,   the   vehicle   is   held   stationary  
t

emporarily   (for   about   1.5   seconds)   to   allow  
t

he   driver   to   take   back   control   by   pressing   the  
b

rake
 ped
al.
You
  are   then   alerted   by   the   display   of   a  
m

essage.
The
  brake   lamps   on   your   vehicle   come   on   to  
w

arn   other   road   users.
After
  an   impact,   the   system   is  
a

utomatically   put   out   of   service:   it   no  
lon

ger
 ope
rates.
You
  must   go   to   a   CITROËN   dealer   or   a  
q

ualified   workshop   to   have   the   system  
m

ade   operational   again.
During
  automatic   braking,   the   driver  
c

an   always   obtain   a   higher   rate   of  
d

eceleration   than   that   controlled   by   the  
s

ystem,   by   pressing   firmly   on   the   brake  
ped

al.
The
  triggering   of   the   system   may   cause  
t

he   engine   to   stall,   unless   the   driver  
d

epresses   the   clutch   pedal   quickly  
e

nough   during   automatic   braking.
deactivation
The system is deactivated in the vehicle configuration   menu,   accessible   with   the   ignition  
o

n.
Its
  state   is   memorised   when   the   ignition   is  
s

witched off. When
  the   system   is   deactivated,   a  
m

essage   is   displayed   every   time   the  
i

gnition   is   switched   on,   to   warn   you.

Fuel tankFuel tank capacity: approximately 50 litres (petrol) or 46 litres (diesel) or 33 litres (LPg) ;
(dep ending on version: approximately 30 litres (petrol or di esel)).
Low fuel level
Filling
A label affixed to the inside of the flap reminds you   of   the   type   of   fuel   to   be   used   depending   on  
y

our
 eng
ine.
Additions
  of   fuel   must   be   of   at   least   7   litres,   in  
o

rder   to   be   registered   by   the   fuel   gauge.The
  key   cannot   be   removed   from   the  
l

ock   until   the   cap   is   refitted.
Opening
  the   filler   cap   may   create   a  
n

oise   caused   by   an   inrush   of   air.   This  
v

acuum   is   entirely   normal,   resulting  
f

rom   the   sealing   of   the   fuel   system.
To
  fill   the   tank   safely:
F

t
he engine must be switched off,
F

o
pen the fuel filler flap,
F
 
i
nsert   the   key   in   the   cap,   then   turn   it   to   the  
l

eft,F
 r emove   the   cap   and   hook   it   onto   the   clip  
l

ocated   on   the   inside   of   the   flap,
F
 
f
ill   the   tank,   but do not continue after the
3rd cut- off of the pump ;
  this   could   cause  
m

alfunctions.
When
  you   have   filled   the   tank:
F
 
p
ut   the   cap   back   in   place,
F
 
t
urn   the   key   to   the   right,   then   remove   it  
f

rom   the   cap,
F
 
c
lose   the   flap.
When the fuel tank minimum level is reached   this   warning   lamp   comes   on o

n   the   instrument   panel.   When   it   first
 c

omes   on   there   remains   approximately
5 litres
  of   fuel   in   the   tank.
With Stop & Start, never refuel with the
system  in   STOP   mode;   you   must   switch  
o

ff   the   ignition   with   the   key.
You
 
must   refuel   as   soon   as   possible   to   avoid  
r

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

Checks"
 s
ection.