check engine Citroen C4 PICASSO RHD 2015 1.G Owner's Guide

313
Checking levels
Take care when working under the bonnet, as certain areas of the engine may be extremely hot (risk of burns) and the cooling fan could start at any   time   (even   with   the   ignition   off).
Engine oil level
The check is carried out either when the   ignition   is   switched   on   using   the  
o

il   level   indicator   in   the   instrument  
p

anel for vehicles with an electric oil
level
  gauge,   or   using   the   dipstick.Checking using the dipstick
Refer to the "Petrol engine" or "Diesel engine" section   for   the   location   of   the   dipstick   in   the  
e

ngine   compartment   of   your   vehicle.
F
 
T
ake   the   dipstick   by   its   coloured   grip   and  
r

emove   it   completely.
F
 
W
ipe   the   end   of   the   dipstick   using   a   clean  
n

on-fluffy   cloth.
F
 
R
efit   the   dipstick   and   push   fully   down,   then  
p

ull   it   out   again   to   make   the   visual   check:  
t

he   correct   level   is   between   the   marks   A
and
  B.
It
 
is
 
normal
 
to
 
top
 
up
 
the
 
oil
 
level
 
between
 
t

wo
 
services
 
(or
 
oil
 
changes).
 
CITROËN
 
r

ecommends
 
that
 
you
 
check
 
the
 
level,
 
and
 
top
 
u

p
 
if
 
necessary,
 
every
 
3
 
000
 
miles
 
(5
 
000
 
kms).
Check
 
all
 
of
 
these
 
levels
 
regularly,
 
in
 
line
 
with
 
the
 
manufacturer's   service   schedule.   Top   them   up   if   necessary,   unless   other wise   indicated.
If
 
a
 
level
 
drops
 
significantly,
 
have
 
the
 
corresponding   system   checked   by   a   CITROËN   dealer   or   a   qualified   workshop.
To
 
ensure
 
that
 
the
 
reading
 
is
 
correct,
 
y

our
 
vehicle
 
must
 
be
 
parked
 
on
 
a
 
level
 
s

ur face
 
with
 
the
 
engine
 
having
 
been
 
off
 
f

or
 
more
 
than
 
30
 
minutes. A = M
aX
B

= MI
n
I

f   you   find   that   the   level   is   above   the   A   mark   or  
belo

w the B   mark,   do not star t the engine.
-
 
I
f   the   level   is   above   the   MAX
 
mark   (risk  
o

f   damage   to   the   engine),   contact   a  
C

ITROËN   dealer   or   a   qualified   workshop.
-
 
I
f   the   level   is   below   the   MIN
 
mark,   you  
m

ust   top   up   the   engine   oil.
8
Checks

314
Topping up the engine oil level
Refer to the "Petrol engine" or "Diesel engine" section for the location of the oil filler cap in the
engine
  compartment   of   your   vehicle.
F

U
nscrew the oil filler cap to reveal the filler
aperture.
F
 
A
dd   oil   in   small   quantities,   avoiding   any  
s

pills   on   engine   components   (risk   of   fire).
F
 
W
ait   a   few   minutes   before   checking   the  
l

evel   again   using   the   dipstick.
F
 
A
dd   more   oil   if   necessary.
F
 
A
fter   checking   the   level,   carefully   refit   the  
o

il   filler   cap   and   the   dipstick   in   its   tube.
Engine oil change
Refer to the manufacturer's service schedule for   details   of   the   interval   for   this   operation.
In
  order   to   maintain   the   reliability   of   the   engine  
a

nd   emission   control   system,   never   use  
a

dditives   in   the   engine   oil.
After
  topping   up   the   oil,   the   check   when  
s

witching   on   the   ignition   with   the   oil  
l

evel   indicator   in   the   instrument   panel  
i

s   not   valid   during   the   30   minutes   after  
t

opping   up.
Oil grade
Before topping-up the oil or changing the oil, c
heck   that   the   oil   is   the   correct   grade   for   your  
e

ngine   and   conforms   to   the   manufacturer's  
r

ecommendations.
Checks

315
Coolant level
The coolant level should be close to   the   "MA X"   mark   but   should   never  
e

xceed   it.
In
 
addition,   as   the   cooling   system   is   pressurised,
 w

ait
 
at
 
least   one   hour   after   switching   off   the
 e

ngine
 
before   carrying   out   any   work.
To
 
avoid
 
any   risk   of   scalding,   unscrew   the   cap
 b

y
 
two
 
turns   to   allow   the   pressure   to   drop.   When
 t

he
 
pressure   has   dropped,   remove   the   cap   and
 t

op
 
up
 
the
  level.
Fluid specification
The coolant must conform to the ma nufacturer's r ecommendations.
The
 
brake
 
fluid
 
level
 
should
 
be
 
close
 
t

o
 
the
 
"MA X"
 
mark.
 
If
 
it
 
is
 
not,
 
check
 
t

he
 
brake
 
pad
 
wear.
Brake fluid level
Changing the fluid
Refer to the manufacturer's service schedule f
or   details   of   the   interval   for   this   operation.
Fluid specification
The brake fluid must conform to the manufacturer's r ecommendations. The cooling fan may star t after switching
off the engine: take care with ar ticles and
clothing that might be caught by the fan
blades. When   the   engine   is   warm,   the   temperature   of  
t

he   coolant   is   regulated   by   the   fan.
8
Checks

317
Checks
12 V battery
The battery does not require any maintenance.However, check that the terminals are clean and   correctly   tightened,   particularly   in   summer a

nd   winter.
Refer to the manufacturer's service   schedule   for   details   of   the  
r

eplacement   intervals   for   these  
c

omponents.
Air filter and passenger compartment filter
Replace the oil filter each time the e ngine   oil   is   changed.
Refer
  to   the   manufacturer's  
s

ervice   schedule   for   details   of  
t

he   replacement   interval   for   this  
c

omponent.
Oil filterThe presence of this label, in particular with
the   Stop   &   Start   system,   indicates   the   use   of  
a

  specific   12   V   lead-acid   battery   with   special  
t

echnology   and   specification.   The   involvement  
o

f   a   CITROËN   dealer   or   a   qualified   workshop  
i

s   essential   when   replacing   or   disconnecting  
t

he   battery.
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.
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.
Particle filter (Diesel)
The start of saturation of the
particle
  filter   is   indicated   by   the  
f

ixed   illumination   of   this   warning  
l

amp   accompanied   by   a   warning  
m

essage.
As
 
soon   as   the   traffic   conditions   permit,  
r

egenerate   the   filter   by   driving   at   a  
s

peed
 
of   at   least   40   mph   (60   km/h)   until  
t

he
 
warning   lamp   goes   off.
If
 
the
 
warning   lamp   stays   on,   this  
i

ndicates   a   low   additive   level.
on a n

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

ccompanied   by   a   "burning"   smell,  
w

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

ehicle
 
at   very   low   speed   or   at   idle,  
y

ou
 
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.
When
 
carrying
 
out
 
work
 
on
 
the
 
battery,
 
refer
 
t

o
 
the
 
"12
 
V
 
battery"
 
section
 
for
 
details
 
of
 
the
 
p

recautions
 
to
 
be
 
taken
 
before
 
disconnecting
 
t

he
 
battery
 
and
 
following
 
its
 
reconnection.
8
Checks

318
Brake wear depends on the style of   driving,   particularly   in   the   case  
o

f   vehicles   used   in   town,   over   short  
d

istances.   It   may   be   necessary   to  
h

ave
 
the
 
condition   of   the   brakes   checked,   even  
b

etween
 v
ehicle
 s
ervices.
Unless
 
there   is   a   leak   in   the   circuit,   a   drop   in  
t

he
 
brake
  fluid   level   indicates   that   the   brake  
p

ads
 
are
 
worn.
Brake pads
For information on checking brake d isc   wear,   contact   a   CITROËN   dealer  
o

r   a   qualified   workshop.
Brake disc wear
Only use products recommended by CITROËN   or   products   of   equivalent  
q

uality
 an
d
 sp
ecification.
In
  order   to   optimise   the   operation   of  
u

nits   as   important   as   those   in   the  
b

raking   system,   CITROËN   selects   and  
o

ffers   very   specific   products.
After
  washing   the   vehicle,   dampness,  
o

r   in   wintry   conditions,   ice   can   form  
o

n   the   brake   discs   and   pads:   braking  
e

fficiency   may   be   reduced.   Make   light  
b

rake   applications   to   dry   and   defrost  
t

he   brakes.
Electric parking brake
For more information, refer to the "Electric parking   brake   -   Operating   faults"   section.
This
  system   does   not   require   any  
r

outine   servicing.   However,   in   the  
e

vent   of   a   problem,   have   the   system  
c

hecked   by   a   CITROËN   dealer   or   a  
q

ualified
 w
orkshop.
Manual gearbox
The gearbox does not require any m
aintenance   (no   oil   change).
Refer
  to   the   manufacturer's   service  
s

chedule   for   the   checking   interval   for  
t

his
 c
omponent.
Electronic gearbox
The gearbox does not require any maintenance   (no   oil   change).
Refer
  to   the   manufacturer's   service  
s

chedule   for   details   of   the   checking  
i

nterval   for   this   component.
Automatic gearbox
The gearbox does not require any maintenance   (no   oil   change).
Refer
  to   the   manufacturer's   service  
s

chedule   for   details   of   the   level  
c

hecking   interval   for   this   component.To
  avoid   damaging   the   electrical   units,  
n

ever use   a   high   pressure   jet   wash   in  
t

he   engine   compartment.
Checks

319
AdBlue® additive and SCR system
f
or
 
BlueHDi   Diesel   engines
To assure respect for the environment and c
onformity   with   the   new   Euro   6   emissions  
s

tandard,   without   adversely   affecting   the  
p

er formance   or   fuel   consumption   of   Diesel  
e

ngines,   CITROËN   has   taken   the   decision   to  
e

quip   its   vehicles   with   an   effective   system   that  
a

ssociates   SCR   (Selective   Catalytic   Reduction)  
w

ith   a   particle   filter   (FAP)   for   the   treatment   of  
e

xhaust   gases.
Presentation of the SCR system
Using an additive called AdBlue® containing u
rea,
 
a
 
catalytic
 
converter
 
turns
 
up   to   85%  
o

f
 
nitrous
 
oxides
 
(NOx)
 
into
 
nitrogen   and  
w

ater,
 
which
 
are
 
harmless
 
to
 
health   and   the  
e

nvironment. The
  AdBlue
® additive is held in a special t
ank
 
located
  under   the   boot   at   the   rear   of  
t

he
 
vehicle.
 
It   has   a   capacity   of   17   litres:   this  
p

rovides
 
a
 
driving   range   of   about   12   500   miles  
(

20
 
000
 
km),
  after   which   an   alert   is   triggered  
w

arning
 
you
 
when   the   reserve   remaining   is  
e

nough
 
for
 
just   1   500   miles   (2   400   km).
During
 
each
  scheduled   service   of   your   vehicle  
b

y
 
a
 
CITROËN   dealer   or   a   qualified   workshop,  
t

he
 
AdBlue
® additive tank is refilled in order to a
llow
 
normal   operation   of   the   SCR   system.
If
 
the
 
estimated   mileage   between   two   services  
i

s
 
greater
 
than   12   500   miles   (20   000   km),   we  
r

ecommend
  that   you   go   to   a   CITROËN   dealer  
o

r
 
a
 
qualified   workshop   to   have   the   necessary  
t

op-up
 
carried   out. Once
  the   AdBlue
® tank is empty, a s
ystem
 
required
  by   regulations  
p

revents
 
starting
 
of   the   engine.
If the SCR

is faulty, the level of
emissions
 
from
 
your   vehicle   will   no  
l

onger
 
meet
 
the
 
Euro   6   standard:   you  
v

ehicle
 
becomes
 
polluting.
In
 
the
 
event
 
of
 
a
 
confirmed   fault  
w

ith
 
the
 
SCR
 
system,   you   must   go  
t

o
 
a
 
CITROËN
 
dealer   or   a   qualified  
w

orkshop
 
as
 
soon   as   possible:   after  
a

 
running
 
distance   of   650   miles  
(

1 100
 
km),
 
a
 
system   will   be   triggered  
a

utomatically
 
to
 
prevent   engine   starting.
8
Checks

320
Range indicators
When switching on the ignition, an indicator gives   an   estimate   of   the   distance   that   can  
b

e   travelled   with   your   vehicle   before   engine  
s

tarting   is   automatically   prevented,   once   the  
v

ehicle   starts   using   the   reserve   of   AdBlue
® or
after
 
a
 
fault
 
is
 
detected
 
with
 
the
 
SCR
 
system.
In
 
the
 
event
 
of
 
simultaneous
 
system
 
fault
 
and  
l

ow
 
AdBlue
® level, the shortest range is the one d
isplayed. Range greater than 1 500 miles (2 400 km)
When
  the   ignition   is   switched   on,  
n

o information   on   range   is   displayed  a
utomatically   in   the   instrument   panel.
With   the   type   2   instrument   panel,   pressing   this  
b

utton   displays   the   driving   range   temporarily.
Above
  3   000   miles   (5   000   km),   the   value   is   not  
s

pecified.
In the event of the risk of non-starting related to a lack of AdBlue®
The engine start prevention system required   by   regulations   is   activated  
a

utomatically   once   the   AdBlue
® tank is e
m pt y.
Checks

321
Remaining range between 350 and 1500 miles (600 and 2 400 km)
When switching on the ignition, the UREA warning   lamp   comes   on,   accompanied  
b

y   an   audible   signal   and   the   display   of   a  
m

essage   (e.g.:   "Top   up   emissions   additive:  
S

tarting   prevented   in   900   miles")   indicating  
t

he   remaining   range   expressed   in   miles   or  
k

ilometres.
When
  driving,   the   message   is   displayed   every  
1

50   miles   (300   km)   until   the   additive   tank   has  
be

en
 t
opped-up.
Go
  to   a   CITROËN   dealer   or   a   qualified  
w

orkshop   to   have   the   AdBlue
® tank topped-up.
Y
ou
 
can
 
also
 
top-up
 
the
 
tank
 
yourself.
Refer
 
to
 
the
 
"Topping-up"
 
section.
Remaining range between 0 and 350 miles (0 and 600 km)
When switching on the ignition, the SERVICE w arning   lamp   comes   on   and   the   UREA   warning  
l

amp   flashes,   accompanied   by   an   audible  
s

ignal   and   the   display   of   a   message   (e.g.   "Top  
u

p   emissions   additive:   Starting   prevented   in  
3

50   miles")   indicating   the   remaining   range  
e

xpressed   in   miles   or   kilometres.
When
  driving,   the   message   is   displayed   every  
3

0   seconds   until   the   additive   tank   has   been  
t

opped-up.
Go
  to   a   CITROËN   dealer   or   a   qualified  
w

orkshop   to   have   the   AdBlue
® tank topped-up.
Y
ou
 
can
 
also
 
top-up
 
the
 
tank
 
yourself.
Refer
 
to
 
the
 
"Topping-up"
 
section.
ot

her wise you will not be able to restart
your engine.
Breakdown related to a lack of AdBlue® additive
When switching on the ignition, the SERVICE w
arning   lamp   comes   on   and   the   UREA   warning  
l

amp   flashes,   accompanied   by   an   audible  
s

ignal   and   the   display   of   the   message   "Top   up  
e

missions   additive:   Starting   prevented".
The
 Ad

Blue
® tank is  empty:  t he  s ystem  r equired  b
y
 
regulations   prevents   engine   starting.
To
 
be
 
able   to   start   the   engine,  
w

e
 
recommend   that   you   call   on  
a

 
CITROËN   dealer   or   a   qualified  
w

orkshop   for   the   top-up   required.   If  
y

ou
 
carry   out   the   top-up   yourself,   it   is  
e

ssential   to   add   at   least   3.8   litres   of  
Ad

Blue
® to the tank.
R
efer
 
to
  the   "Topping-up"   section.
8
Checks

322
In the event of a fault with the the SCR emissions control system
In the event of the detection of a fault
The  UREA,   SERVICE   and   diagnostic   warning  
l

amps   comes   on,   accompanied   by   an   audible  
s

ignal   and   the   display   of   a   message   "Emissions  
f

ault"   to   signal   a   fault   with   the   emissions   control  
s

ystem.
The
  alert   is   triggered   when   driving   when   the  
f

ault   is   detected   for   the   first   time,   then   when  
s

witching   on   the   ignition   for   subsequent  
j

ourneys,   while   the   fault   persists. During an authorised driving phase (between
650 miles and 0 miles) (1 100 km and 0 km)
If
  a   fault   with   the   SCR   system   is   confirmed  
(

after   30   miles   (50   km)   covered   with   the  
p

ermanent   display   of   the   message   signalling  
a

  fault),   the   SERVICE   and   engine   diagnostic  
w

arning   lamps   come   on   and   the   UREA  
w

arning   lamp   flashes,   accompanied   by   an  
a

udible   signal   and   the   display   of   a   message  
(

e.g.:   "Emissions   fault:   Starting   prevented   in  
1

50 miles")   indicating   the   remaining   range  
e

xpress   in   miles   or   kilometres.
While
  driving,   the   message   is   displayed   every  
3

0   seconds   while   the   fault   with   the   SCR   system  
p

ersists.
The
  alert   is   repeated   when   switching   on   the  
ig

nition.
You
  should   go   to   a   CITROËN   dealer   or   a  
q

ualified   workshop   as   soon   as   possible.
ot

her wise, you will not be able to restart
your engine.
A
 
system
 
that
 
prevents
 
engine
 
starting
 
i

s
 
activated
 
automatically
 
from
 
6

50 miles
 
(1
 
100
 
km)
 
after
 
confirmation
 
o

f
 
a
 
fault
 
with
 
the
 
SCR
 
emissions
 
c

ontrol
 
system.
 
Have
 
the
 
system
 
c

hecked
 
by
 
a
 
CITROËN
 
dealer
 
or
 
a
 
q

ualified
 
workshop
 
as
 
soon
 
as
 
possible.
If
  it   is   a   temporary   fault,   the   alert  
d

isappears   during   the   next   journey,  
a

fter   self-diagnosis   of   the   SCR   system.
Checks

323
Starting prevented
Every  time   the   ignition   is   switched   on,   the  
S

ERVICE   and   engine   diagnostic   warning  
l

amps   come   on   and   the   UREA   warning   lamp  
f

lashes,   accompanied   by   an   audible   signal   and  
t

he   display   of   the   message   "Emissions   fault:  
St

arting
 p
revented".
You
  have   exceeded   the   authorised  
d

riving   limit:   the   starting   prevention  
s

ystem   inhibits   engine   starting.
To
  be   able   to   start   the   engine,   you   must  
c

all   on   a   CITROËN   dealer   or   a   qualified  
w

orkshop. Freezing of the AdBlue® additive
The
 
AdBlue
® additive freezes at t
emperatures   below   around   -11°C.
The
 
SCR
 
system   includes   a   heater  
f

or
 
the
 
AdBlue
® tank, allowing you to c
ontinue
 
driving   in   very   cold   conditions.
8
Checks