2014.5 Citroen C4 DAG check engine

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C4-2_en_Chap10_verification_ed01-2014
PETROL ENGINES
The various caps and covers allow access for checking the levels of the various fluids and for replacing certain components.
1.  
Power
  steering   reservoir.
2.
 
Screenwash
 
and
 
headlamp
 
wash
 
reservoir

.
3.
 
Coolant
  reservoir. 4.
 
Brake
  fluid   reservoir.
5.
 
Battery/Fuses.
6.

 
Fusebox.7.

 
Air
  filter.
8.
 
Engine
  oil   dipstick.
9.
 
Engine
  oil   filler   cap.
CHECKS

1010
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C4-2_en_Chap10_verification_ed01-2014
* According  to   engine.
DIESEL ENGINES
The various  caps  and  covers  allow  access  for  checking  the  levels  of  the  various  fluids,  for  replacing  certain  components  and  for
  priming   the   fuel   system.
1.
 
Power
  steering   reservoir.
2.
 
Screenwash
 
and
 
headlamp
 
wash
 
reservoir

.
3.
 
Coolant
  reservoir. 4.
 
Brake
  fluid   reservoir.
5.
 
Battery/Fuses.
6.

 
Fusebox.
7.

 
Air
  filter.8.
 
Engine
  oil   dipstick.
9.
 
Engine
  oil   filler   cap.
10.
 
Priming
  pump*.
11 .
 Bleed

  screw*.
CHECKS

1010
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C4-2_en_Chap10_verification_ed01-2014
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).
The
 
check
 
is
 
carried
 
out
 
either
 
when

 
the
 
ignition
 
is
 
switched
 
on

 
using
 
the
 
oil
 
level
 
indicator
 
in

 
the
 
instrument
 
panel
 
for
 
ve
-
hicles with an electric oil level
gauge,
  or   using   the   dipstick.
Engine oil level
Checking using the dipstick
Refer 
to
 
the
 
"Petrol
 
engine"
 
or
 
"Diesel
 
engine"

 
section
 
for
 
the
 
location
 
of
 
the
 
dipstick

 
in
 
the
 
engine
 
compartment
 
of
 
your

  vehicle.
F
 
T
ake  
the
 
dipstick
 
by
 
its
 
coloured
 
grip
 
and

  remove   it   completely.
F
 
Wipe
 
the
 
end
 
of
 
the
 
dipstick
 
using
 
a
 
clean

  non-fluffy   cloth.
F
 
Refit
 
the
 
dipstick
 
and
 
push
 
fully
 
down,

 
then
 
pull
 
it
 
out
 
again
 
to
 
make
 
the

 
visual
 
check:
 
the
 
correct
 
level
 
is
 
between

  the   marks   A   and   B.
Check
 
all

 
of

 
these

 
levels

 
regularly

,
 
in

 
line

 
with

 
the

 
manufacturer's

 
service

 
schedule.

 
T

op
 
them

 
up

 
if

 
necessary

,
 
unless

 
otherwise
 
indicated.
If
 
a

 
level

 
drops

 
significantly

,
 
have

 
the

 
corresponding

 
system

 
checked

 
by

 
a

 
CITROËN

 
dealer

 
or

 
a

 
qualified

 
work

-
shop.
To
 
ensure

 
that

 
the

 
reading

 
is

 
correct,

 
your

 
vehicle

 
must

 
be

 
parked

 
on

 
a

 
level

 
surface

 
with

 
the

 
engine

 
having

 
been

 
of

f
 
for

 
more
 
than
 
30
 
minutes.
It
 
is

 
normal

 
to

 
top

 
up

 
the

 
oil

 
level

 
be

-
tween
 
two

 
services

 
(or

 
oil

 
changes).

 
CITROËN

 
recommends

 
that

 
you

 
check

 
the

 
level,

 
and

 
top

 
up

 
if

 
necessary

,
 
every

 
3

 
000
 
miles
 
(5
 
000
 
kms). A
  =   MAX
B
  =   MIN If
 you  find  that  the  level  is  above  the  A
mark  or  below  the  B  mark,  do not start
the engine.
-
 
If
 
the
 
level
 
is
 
above
 
the
 
MAX
 
mark
 
(risk

 
of
 
damage
 
to
 
the
 
engine),
 
con
-
tact
 
a
 
CITROËN
 
dealer
 
or
 
a
 
quali
-
fied
  workshop.
-
 
If
 
the
 
level
 
is
 
below
 
the
 
MIN
 
mark,
 
you

  must   top   up   the   engine   oil.
Oil grade
Before
 
topping-up
 
the
 
oil
 
or
 
changing
 
the

 
oil,
 
check
 
that
 
the
 
oil
 
is
 
the
 
correct
 
grade

 
for
 
your
 
engine
 
and
 
conforms
 
to
 
the

  manufacturer's   recommendations.
CHECKS

1010
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C4-2_en_Chap10_verification_ed01-2014
Brake fluid level
Changing the fluid
Refer 
to
 
the
 
manufacturer's
 
service
 
schedule

 
for
 
details
 
of
 
the
 
interval
 
for
 
this

  operation.
Fluid specification
The
 
brake
 
fluid
 
must
 
conform
 
to
 
the
 
manufacturer's

  recommendations.
Power steering fluid level
The power steering  fluid  level should
 be  close  to  the  "MAX" mark.

 
With
 
the
 
engine
 
cold,
 
un
-
screw
 
the
 
cap
 
to
 
check
 
the
 
level.
Coolant level
The coolant level  should  be  close
 to  the  "MAX"  mark  but  
should

  never   exceed   it.
When
 
the
 
engine
 
is
 
warm,
 
the
 
temperature

 
of
 
the
 
coolant
 
is
 
regulated
 
by

 
the
 
fan.
In
 
addition,
 
as
 
the
 
cooling
 
system
 
is
 
pressurised,

 
wait
 
at
 
least
 
one
 
hour
 
after
 
switching

 
of
f  
the
 
engine
 
before
 
carrying
 
out

 
any
  work.
To
 
avoid
 
any
 
risk
 
of
 
scalding,
 
unscrew
 
the cap by two turns to allow the pres

-
sure
 
to

 
drop.
 
When
 
the
 
pressure
 
has
 
dropped,

 
remove
 
the
 
cap
 
and
 
top
 
up
 
the

 
level.
Fluid specification
The
 
coolant
 
must
 
conform
 
to
 
the
 
manu
-
facturer's
  recommendations.
The cooling fan may start after
switching off the engine: take
care with articles and clothing
that might be caught by the
fan blades.
The
 brake
 fluid
 level
 should
 be
 close
 to
 the
 "MAX"
 mark.
 If
 it
 is
 not,
 
check
 
the
 
brake
 
pad
 
wear.
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
 
Unscrew

 
the

 
oil

 
filler

 
cap

 
to

 
reveal

 
the

 
filler
 
aperture.
F
 
Add

 
oil

 
in

 
small

 
quantities,

 
avoiding

 
any

 
spills

 
on

 
engine

 
components

 
(risk

 
of
 
fire).
F
 
W

ait
 
a

 
few

 
minutes

 
before

 
checking

 
the

 
level
 
again
 
using
 
the
 
dipstick.
F
 
Add

 
more
 
oil
 
if
 
necessary.
F
 
After

 
checking

 
the

 
level,

 
carefully

 
refit

 
the

 
oil

 
filler

 
cap

 
and

 
the

 
dipstick

 
in

 
its
 
tube.
After
 
topping

 
up

 
the

 
oil,

 
the

 
check

 
when

 
switching

 
on

 
the

 
ignition

 
with

 
the

 
oil

 
level

 
indicator

 
in

 
the

 
instrument

 
panel

 
is

 
not

 
valid

 
during

 
the

 
30

 
minutes

 
after

 
topping

 
up.
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

 
and

 
emission

 
control

 
system,

 
never

 
use
 
additives
 
in
 
the
 
engine
 
oil.
CHECKS

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C4-2_en_Chap10_verification_ed01-2014
Used products
Avoid prolonged contact  of  used  oil
  or   fluids   with   the   skin.
Most
 
of
 
these
 
fluids
 
are
 
harmful
 
to

 
health
 
or
 
indeed
 
very
 
corro
-
sive.
Do
 
not
 
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
 
authorised
 
waste

  disposal   site.
Additive level (Diesel with
particle emissions filter)
The additive reservoir  low  level  is  indi -
cated   by:
Topping up
The
 
reservoir
 
must
 
be
 
topped
 
up
 
with
-
out
 
delay
 
by
 
a
 
CITROËN
 
dealer
 
or
 
a
 
qualified

  workshop.
-
 
fixed
 
illumination
 
of
 
the
 
par
-
ticle
 
emissions
 
filter
 
warning lamp,

 
accompanied
 
by
 
an
 
au
-
dible
 
signal
 
and
 
a
 
message that

 
the
 
particle
 
emissions filter

  additive   level   is   too   low.
Screenwash / headlamp wash
fluid levelSpecification of the fluid
To 
ensure
 
optimum
 
cleaning
 
and
 
to avoid

 
freezing,
 
the
 
fluid
 
should
 
never
 
be topped

  up   or   replaced   by   plain   water.
In
 
wintry
 
conditions,
 
the
 
use
 
of
 
a
 
fluid
 
with

 
an
 
ethyl
 
alcohol
 
or
 
methanol
 
base
 
is

  recommended.
To
 
check

 
the

 
level

 
or

 
top

 
up

 
the

 
fluid

 
on

 
vehicle

 
fitted

 
with

 
headlamp

 
washers,

 
immobilise

 
the

 
vehicle

 
and

 
switch

 
of

 
the

 
engine.
F

 
Open

 
the

 
bonnet

 
and

 
secure

 
it

 
with

 
the

 
stay.
F
 
Open

 
the

 
screenwash

 
reservoir

 
fill

-
er
 
cap.
F
 
T

ake
 
and

 
pinch

 
the

 
level

 
gauge

 
to

 
block

 
its
 
breather.
F
 
Remove

 
the

 
gauge

 
completely

 
from

 
the

 
reservoir

 
to

 
read

 
the

 
level

 
in

 
the

 
transparent

 
section.
F
 
T

op
 
up
 
if
 
necessary.
F
 
Refit

 
the

 
filler

 
cap

 
to

 
the

 
reservoir

 
and

 
close
 
the
 
bonnet.
CHECKS

1010
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C4-2_en_Chap10_verification_ed01-2014
CHECKSParticle emission filter (Diesel)
The start of saturation of the particle
emissions  filter   is   indicated   by:
-
 
fixed
 
illumination
 
of
 
the
 
par
-
ticle
 
emissions
 
filter
 
warning lamp,

 
accompanied
 
by
 
an audible

 
signal
 
and
 
a
 
message that

 
there
 
is
 
a
 
risk
 
of
 
blockage of

  the   particle   emissions   filter.
The presence of this label, in particular
with
 
the

 
Stop

 
&

 
Start

 
system,

 
indicates

 
the

 
use

 
of

 
a

 
specific

 
12

 
V

 
lead-acid

 
bat

-
tery
 
with

 
special

 
technology

 
and

 
specifi

-
cation.
 
The

 
involvement

 
of

 
a

 
CITROËN

 
dealer

 
or

 
a

 
qualified

 
workshop

 
is

 
essen

-
tial
 
when

 
replacing

 
or

 
disconnecting

 
the

 
battery

. On
 
a
 
new
 
vehicle,
 
the
 
first
 
op
-
erations
 
of
 
regeneration
 
of
 
the
 
particle

 
emissions
 
filter
 
may
 
be
 
accompanied

 
by
 
the
 
smell
 
of
 
"burning",

 
which
 
is
 
perfectly
 
nor
-
mal.
Following
 
prolonged
 
operation
 
of

 
the
 
vehicle
 
at
 
very
 
low
 
speed
 
or

 
at
 
idle,
 
you
 
may
,  
in
 
excep
-
tional
 
circumstances,
 
notice
 
the
 
emission

 
of
 
water
 
vapour
 
at
 
the
 
exhaust

 
on
 
acceleration.
 
This
 
does

 
not
 
af
fect  
the
 
behaviour
 
of
 
the

  vehicle   or   the   environment.
As
 
soon
 
as
 
the
 
traffic
 
conditions
 
per
-
mit,
 
regenerate
 
the
 
filter
 
by
 
driving
 
at
 
a
 
speed

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

  warning   lamp   goes   off.
If
 
the
 
warning
 
lamp
 
stays
 
on,
 
refer
 
to
 
the

  "Additive   level"   section.
Unless
 otherwise
 indicated,
 check
 these
 components
 in
 accordance
 with
 
the

 
manufacturer's

 
service

 
schedule

 
and

 
according
 
to
 
your
 
engine.
Otherwise,
 
have

 
them

 
checked

 
by

 
a

 
CITROËN

 
dealer

 
or

 
a

 
qualified

 
work

-
shop.
Air filter and passenger compartment filter
Refer to  the  manufacturer's  service
 schedule  for  details  of  
the

 
replacement
 
intervals
 
for
 
these

  components.
Depending
 
on
 
the
 
environ
-
ment
 
(e.g.
 
dusty
 
atmosphere)
 
and
 
the
 
use

 
of

 
the
 
vehicle
 
(e.g.
 
city
 
driving),
 
re
-
place them twice as often if neces-
sary.
A
 clogged

 
passenger
 
compartment
 
fil
-
ter
 
may

 
have
 
an
 
adverse
 
ef
fect  
on
 
the
 
performance

 
of
 
the
 
air
 
conditioning
 
sys
-
tem
 
and
 
generate   undesirable   odours.
Oil filter
Replace the oil  filter  each  time  the
  engine   oil   is   changed.
Refer
 
to
 
the
 
manufacturer's
 
service

 
schedule
 
for
 
details
 
of

 
the
 
replacement
 
interval
 
for
 
this

 
component.
12 V battery
The battery  does  not  require  any
  maintenance.
However,
 
check
 
that
 
the
 
ter
-
minals
 
are
 
clean
 
and
 
correctly
 
tightened,

 
particularly
 
in
 
sum
-
mer
 
and
 
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
 
the
 
battery
 
and
 
following

  its   reconnection.
CHECKS

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C4-2_en_Chap10_verification_ed01-2014
ADBLUE® ADDITIVE AND SCR SYSTEM
FOR
B
LUE HD I D IESEL
ENGINES
To assure  respect  for  the  environment  and
 conformity  with  the  new  Euro  6  
emissions

 
standard,
 
without
 
adversely
 
af

fecting  
the
 
performance
 
or
 
fuel
 
con
-
sumption
 
of
 
Diesel
 
engines,
 
CITROËN
 
has

 
taken
 
the
 
decision
 
to
 
equip
 
its
 
ve
-
hicles
 
with
 
an
 
ef
fective  
system
 
that
 
associates SCR (Selective Catalytic
Reduction)

 
with
 
a
 
particle
 
filter
 
(F
AP)  
for

  the   treatment   of   exhaust   gases.
Presentation of the SCR system
Using an additive  called  AdBlue® con-
taining
 urea,
 a
 catalytic
 converter
 turns  
up

 
to

 
85%

 
of

 
nitrous

 
oxides

 
(NOx)
 
into
 
nitrogen

 
and

 
water

,
 
which

 
are

 
harmless
 
to

 
health
 
and
 
the
 
environment. The
 
AdBlue® additive
 is  held  in  a  spe -
cial
 tank
 located  under  the  boot  at  the  
rear

 
of

 
the

 
vehicle.
 
It
 
has
 
a
 
capacity
 
of
 
17

 
litres:

 
this

 
provides
 
a
 
driving
 
range
 
of
 
about

 
12

 
500
 
miles
 
(20
 
000
 
km),
 
after
 
which

 
an

 
alert
 
is
 
triggered
 
warning
 
you
 
when

 
the

 
reserve
 
remaining
 
is
 
enough
 
for

 
just
 
1
 
500   miles   (2   400   km).
During
 
each

 
scheduled
 
service
 
of
 
your
 
vehicle

 
by

 
a

 
CITROËN
 
dealer
 
or
 
a
 
qual
-
ified
 
workshop,
 
the
 
AdBlue® additive  tank
 is
 refilled
 in
 order
 to
 allow  normal  
operation

 
of
 
the
 
SCR
 
system.
If
 
the

 
estimated

 
mileage

 
between
 
two
 
services

 
is

 
greater

 
than

 
12

 
500
 
miles
 
(20

 
000

 
km),

 
we

 
recommend

 
that
 
you
 
go

 
to

 
a

 
CITROËN

 
dealer

 
or

 
a
 
qualified
 
workshop

 
to

 
have

 
the

 
necessary
 
top-up
 
carried

 
out. Once
 
the
 
AdBlue® tank is
 empty ,  a
 system
 required
 by  regulations  
prevents

 
starting
 
of   the   engine.
If the SCR

is faulty, the level of
emissions
 
from

 
your
 
vehicle
 
will
 
no

 
longer

 
meet

 
the
 
Euro
 
6
 
stan
-
dard:
 
you

 
vehicle

 
becomes
 
pol
-
luting.
In
 
the

 
event

 
of

 
a

 
confirmed
 
fault
 
with

 
the

 
SCR

 
system,
 
you
 
must
 
go

 
to

 
a

 
CITROËN
 
dealer
 
or
 
a
 
qualified

 
workshop
 
as
 
soon
 
as
 
possible:

 
after

 
a

 
running
 
dis
-
tance
 
of

 
650

 
miles
 
(1 
100  
km),
 
a

 
system

 
will

 
be

 
triggered
 
au
-
tomatically
 
to

 
prevent
 
engine
 
starting.
CHECKS

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C4-2_en_Chap10_verification_ed01-2014
Range indicators
When switching on  the  ignition,  an  indi -
cator  gives  an  estimate  of  the  distance  
that

 
can
 
be
 
travelled
 
with
 
your
 
vehicle
 
before

 
engine
 
starting
 
is
 
automatically
 
prevented,

 
once
 
the
 
vehicle
 
starts
 
us
-
ing
 
the
 
reserve
 
of
 
AdBlue® or after a
fault
 
is
 
detected
 
with
 
the
 
SCR   system.
In
 
the

 
event

 
of

 
simultaneous
 
system
 
fault

 
and

 
low

 
AdBlue® level, the short-
est
 
range
 
is
 
the
 
one
 
displayed. 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  automatically
  once   the  AdBlue® tank is empty.
Range greater than 1 500 miles
(2

400 km)
When
 
the

 
ignition

 
is

 
switched

 
on,

 
no

 
information

 
on

 
range

 
is

 
displayed

 
auto

-
matically
 
in
 
the
 
instrument
 
panel. Remaining range between 350 and
1500 miles (600 and 2 400 km)
When
 
switching

 
on

 
the

 
ignition,

 
the
 
UREA warning

 
lamp

 
comes

 
on,

 
ac
-
companied
 
by

 
an

 
audible

 
signal

 
and
 
the

 
temporary

 
display

 
in

 
the

 
instrument
 
panel

 
of

 
"NO

 
ST

ART
 IN"

 
and

 
a

 
dis
-
tance,
 
indicating

 
the

 
remaining

 
range
 
expressed

 
in

 
miles

 
or

 
kilometres

 
be
-
fore
 
engine

 
starting

 
is

 
prevented

 
-

 
(For
 
example

 
"NO

 
ST

ART
 IN

 
900

 
miles"
 
means

 
that

 
"Starting

 
will

 
be

 
prevented
 
in

 
900
 
miles.
When
 
driving,

 
this

 
display

 
appears

 
ev
-
ery
 
150

 
miles

 
(300

 
km)

 
until

 
the

 
additive
 
tank

 
has
 
been
 
topped-up.
Go
 
to

 
a

 
CITROËN

 
dealer

 
or

 
a

 
quali
-
fied
 
workshop

 
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
 
SER

VICE  
warning
 
lamp
 
comes
 
on
 
and
 
the

 
UREA warning
 
lamp
 
flashes,
 
ac
-
companied  
by
 
an
 
audible
 
signal
 
and
 
the

 
temporary
 
display
 
in
 
the
 
instrument
 
panel

 
of
 
"NO
 
ST
ART
 IN"
 
and
 
a
 
dis
-
tance  
indicating
 
the
 
remaining
 
range
 
expressed

 
in
 
miles
 
or
 
kilometres
 
be
-
fore  
engine
 
starting
 
is
 
prevented
 
-
 
(For
 
example

 
"NO
 
ST
ART
 IN
 
350
 
miles"
 
means

 
"Starting
 
will
 
be
 
prevented
 
in
 
350

  miles   .
When  
driving,
 
this
 
display
 
appears
 
ev
-
ery  
30
 
seconds
 
until
 
the
 
additive
 
tank
 
has

  been   topped-up.
Go  to  a  CITROËN  dealer  or  a  quali -
fied  workshop  to  have  the  AdBlue® tank topped-up.
Y
ou
 
can
 
also
 
top-up
 
the
 
tank
 
yourself.
Refer
 
to
 
the
 
"Topping-up"
 
section.
o

therwise you will not be able to restart
your
 
engine.
CHECKS