engine Citroen C4 DAG 2008.5 1.G Workshop Manual
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C H E C K S
PETROL ENGINES
T h e y a l l o w y o u a c c e s s f o r c h e c k i n g t h e l e v e l o f t h e v a r i o u s fl u i d s a n d f o r r e p l a c i n g c e r t a i n c o m p o n e n t s .
1. P o w e r s t e e r i n g r e s e r v o i r .
2. Screenwash and headlamp wash
reservoir.
3. Coolant reservoir.
4. B r a k e fl u i d r e s e r v o i r .
5. Battery.
6. Fuse box.
7. A i r fi l t e r * .
8. Dipstick.
9. E n g i n e o i l fi l l e r c a p .
* According to engine.
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C H E C K S * According to engine.
DIESEL ENGINES
T h e y a l l o w y o u a c c e s s f o r c h e c k i n g t h e l e v e l o f t h e v a r i o u s fl u i d s , f o r r e p l a c i n g c e r t a i n c o m p o n e n t s a n d f o r r e p r i m i n g t h e f u e l .
1. P o w e r s t e e r i n g r e s e r v o i r .
2. Screenwash and headlamp
wash reservoir.
3. Coolant reservoir.
4. B r a k e fl u i d r e s e r v o i r .
5. Battery.
6. Fuse box.
7. A i r fi l t e r * .
8. Dipstick.
9. E n g i n e o i l fi l l e r c a p .
10. Repriming pump * .
11. Degas screw * . As the diesel circuit is pres-
surised, any work on this
circuit is prohibited.
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C H E C K S
CHECKING LEVELS
Check all of these levels regularly
and top them up if necessary, unless
otherwise indicated.
I f a l e v e l d r o p s s i g n i fi c a n t l y , h a v e t h e
corresponding circuit checked by a
CITROËN dealer.
Oil level
Draining the engine
Refer to the servicing booklet for de-
tails of the interval for this operation. O i l s p e c i fi c a t i o n
The oil must correspond to your engine
and conform to the manufacturer's rec-
ommendations.
Brake fluid level
Draining the circuit
Refer to the servicing booklet for de-
tails of the interval for this operation.
T h i s fl u i d m u s t b e c h a n g e d r e g u l a r l y .
Fluid which has been used exces-
sively may cause a loss of braking
e f fi c i e n c y .
F l u i d s p e c i fi c a t i o n
T h e b r a k e fl u i d m u s t c o n f o r m t o t h e
manufacturer's recommendations
a n d f u l fi l t h e D O T 4 s t a n d a r d s .
Coolant level
Draining the circuit
The coolant does not have to be
changed.
F l u i d s p e c i fi c a t i o n
The coolant must conform to the
manufacturer's recommendations.
The reading will only be
correct if the vehicle is on
level ground and the engine
has been off for more than
15 minutes.
The check is carried out either when
the ignition is switched on using the
oil level indicator on the instrument
panel, or using the dipstick.
Between two oil changes, the con-
sumption should not exceed 0.5 litre
per 600 miles (approx. 1 000 km).
Check this level also between each
scheduled service and before long
journeys. T h e b r a k e fl u i d l e v e l s h o u l d
be close to the "MAX" mark.
If it is not, check the brake
pad wear.
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. This can oper-
ate with the ignition off.
O n v e h i c l e s w h i c h a r e fi t t e d w i t h
a p a r t i c l e e m i s s i o n fi l t e r , t h e f a n
may operate after the vehicle has
b e e n s w i t c h e d o f f , e v e n i f t h e e n -
gine is cold.
In addition, as the cooling system is
pressurised, wait at least one hour
after switching off the engine before
carrying out any work.
To avoid any risk of scalding, un-
screw the cap by two turns to al-
low the pressure to drop. When the
pressure has dropped, remove the
cap and top up the level.
In order to maintain the re-
liability of the engine and
emission control system,
the use of additives in the engine
oil is prohibited.
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C H E C K S
Screenwash and headlamp
wash fluid
F l u i d s p e c i fi c a t i o n
For optimum cleaning and to avoid
f r e e z i n g , t h i s fl u i d m u s t n o t b e
topped up or replaced with water.
Reservoir capacities:
- screenwash: approximately 3 litres,
- screenwash and headlamp wash: approximately 6 litres.
Diesel additive level
(Diesel engine with particle
emission filter)
A low additive level is indicated by
lighting of the service warning light,
accompanied by an audible warning
and a message on the multifunction
display.
Topping up
This additive must be topped up by
a CITROËN dealer without delay.
Used products
Avoid prolonged contact of
u s e d o i l o r fl u i d s w i t h t h e
skin.
M o s t o f t h e s e fl u i d s a r e h a r m f u l t o
health or indeed very corrosive.
Do not discard used oil or
fl u i d s i n t o s e w e r s o r o n t o
the ground.
Empty used oil into the containers pro-
vided for this purpose in the CITROËN
network.
I n t h e c a s e o f v e h i c l e s fi t t e d
with headlamp washers, the
m i n i m u m l e v e l o f t h i s fl u i d i s
indicated by an audible signal
and a message on the multifunction
display.
Top up the level when you stop the
vehicle.
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C H E C K S
CHECKS
Unless otherwise indicated, check
these components in accordance
with the Maintenance and Warranty
Guide and in relation to your en-
gine.
Otherwise, have them checked by a
CITROËN dealer.
Battery The battery does not re-
quire any maintenance.
However, check that the
terminals are clean and
correctly tightened, partic-
ularly in summer and winter.
When carrying out work on the bat-
t e r y , r e f e r t o t h e " P r a c t i c a l i n f o r -
mation" section for details of the
precautions to be taken before dis-
connecting the battery and following
its reconnection. Air filter and passenger
compartment filter
Refer to the Maintenance
and Warranty Guide for
details of the replacement
intervals for these compo-
nents.
Depending on the environment (e.g.
dusty atmosphere) and the use of the
vehicle (e.g. city driving), replace them
twice as often if necessary (refer to
the "Engines" paragraph).
A clogged passenger compartment
fi l t e r m a y h a v e a n a d v e r s e e f f e c t o n
the performance of the air condition-
ing system and generate undesirable
odours.
Oil filter
R e p l a c e t h e o i l fi l t e r e a c h
time the engine oil is
changed. Particulate filter system
(Diesel)
Complementary to the catalytic
c o n v e r t e r , t h i s fi l t e r m a k e s a n a c -
tive contribution to the preservation
of air quality by the retaining of the
unburnt pollutant particles. Black
exhaust fumes are thus no longer
emitted.
After prolonged idling or driving at very
low speeds, you may occasionally no-
tice water vapour being emitted from
the exhaust when accelerating. This is
of no consequence to the running of
the vehicle or to the environment.
If there is risk of clogging, a mes-
sage appears on the multifunction
screen, accompanied by a sound
signal and lighting of the service
warning lamp.
This alert tells you that the particle
fi l t e r i s s t a r t i n g t o fi l l u p ( i n c o n d i t i o n s
of urban driving of exceptionally long
d u r a t i o n : l o w s p e e d s , t r a f fi c j a m s
etc.)
T o r e g e n e r a t e t h e fi l t e r , i t i s a d v i s e d
to drive as soon as possible, when
t r a f fi c c o n d i t i o n s p e r m i t , a t a s p e e d
of 40 mph (around 60 km/h) or
m o r e f o r a t l e a s t fi v e m i n u t e s ( u n t i l
the alert message disappears).
If this alert persists, consult a CITROËN
dealer.
Refer to the Maintenance and
Warranty Guide for details of the
replacement interval for this compo-
nent.
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C H E C K S
Brake pads Brake wear depends on
the style of driving, par-
ticularly in the case of ve-
hicles used in town, over
short distances. It may be
necessary to have the condition of
the brakes checked, even between
vehicle services.
Unless there is a leak in the circuit, a
d r o p i n t h e b r a k e fl u i d l e v e l i n d i c a t e s
that the brake pads are worn.
Manual gearbox
The gearbox does not re-
quire any maintenance (no
oil change).
6 - s p e e d e l e c t r o n i c g e a r b o x
system The gearbox does not re-
quire any maintenance (no
oil change).
Automatic gearbox The gearbox does not re-
quire any maintenance (no
oil change). Brake disc wear status
For information relating to
checking the brake disc wear
status, contact a CITROËN
dealer.
Handbrake If the handbrake travel is
too long or if a loss of ef-
fectiveness of this system
is noticed, the handbrake
must be adjusted, even
between two services.
This system must be checked by a
CITROËN dealer. Only use products recom-
mended by CITROËN or
products of equivalent quality
a n d s p e c i fi c a t i o n s .
In order to optimise the operation
of units as important as the braking
system, CITROËN selects and of-
f e r s v e r y s p e c i fi c p r o d u c t s .
To avoid damaging the electrical
units, the use of a high pressure
washer in the engine compartment
is strictly prohibited .
Refer to the Maintenance and
Warranty Guide for the details of
the checking interval for this compo-
nent.
Refer to the servicing booklet for de-
tails of the checking interval for this
component.
Refer to the servicing booklet for de-
tails of the checking interval for this
component.
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P R A C T I C A L I N F O R M A T I O N Fuses in the engine
compartment Access to the fuses
D e t a c h a n d r e m o v e t h e c o v e r .
Access to the second dashboard
fusebox
After any operation on the fuses
in the fusebox, check that the
fusebox cover is put back cor-
rectly for their protection. Table of fuses
Fuse N° Rating Functions
F36 30 A H i - F i a m p l i fi e r
F37 30 A D r i v e r ' s e l e c t r i c s e a t
F39 20 A H e a t e d s e a t s
After any operation, carefully
re-
fi t
the cover. If the cover is not
correctly positioned or not prop-
erly closed, this could cause se-
rious problems on your vehicle.
For the same reason, take care
not to spill any liquid in the fuse-
box. A l l w o r k o n t h e m a x i - f u s e s ,
w h i c h a r e l o c a t e d i n t h e s e
f u s e b o x e s a n d w h i c h g i v e
extra protection, must be carried
o u t b y C I T R O Ë N t e c h n i c i a n s .
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P R A C T I C A L I N F O R M A T I O N Fuses in the engine
compartment Access to the fuses
D e t a c h a n d r e m o v e t h e c o v e r .
Access to the second dashboard
fusebox
After any operation on the fuses
in the fusebox, check that the
fusebox cover is put back cor-
rectly for their protection. Table of fuses
Fuse N° Rating Functions
F36 30 A H i - F i a m p l i fi e r
F37 30 A D r i v e r ' s e l e c t r i c s e a t
F39 20 A H e a t e d s e a t s
After any operation, carefully
re-
fi t
the cover. If the cover is not
correctly positioned or not prop-
erly closed, this could cause se-
rious problems on your vehicle.
For the same reason, take care
not to spill any liquid in the fuse-
box. A l l w o r k o n t h e m a x i - f u s e s ,
w h i c h a r e l o c a t e d i n t h e s e
f u s e b o x e s a n d w h i c h g i v e
extra protection, must be carried
o u t b y C I T R O Ë N t e c h n i c i a n s .
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P R A C T I C A L I N F O R M A T I O N
BATTERY
P r o c e d u r e f o r c h a r g i n g y o u r b a t t e r y
w h e n i t i s fl a t o r f o r s t a r t i n g t h e e n -
g i n e u s i n g a n o t h e r b a t t e r y .
Access to the battery
T h e b a t t e r y i s l o c a t e d u n d e r t h e
b o n n e t .
To gain access to it:
open the bonnet using the inte-
rior lever, then the exterior lever,
secure the bonnet strut,
remove the plastic cover to gain
a c c e s s t o t h e t w o t e r m i n a l s ,
unclip the fuse box to remove
t h e b a t t e r y , i f n e c e s s a r y .
Charging the battery using a
battery charger
D i s c o n n e c t t h e b a t t e r y f r o m t h e
v e h i c l e .
F o l l o w t h e i n s t r u c t i o n s f o r u s e
p r o v i d e d b y t h e m a n u f a c t u r e r o f
t h e c h a r g e r .
R e c o n n e c t s t a r t i n g w i t h t h e n e g -
a t i v e t e r m i n a l ( - ) .
Check that the terminals and
c o n n e c t o r s a r e c l e a n . I f t h e y a r e
c o v e r e d w i t h s u l p h a t e ( w h i t i s h o r
g r e e n i s h d e p o s i t ) , r e m o v e t h e m
a n d c l e a n t h e m .
Starting using another
battery
The batteries contain harm-
ful substances such as sul-
p h u r i c a c i d a n d l e a d . T h e y
must be disposed of in accordance
w i t h r e g u l a t i o n s a n d m u s t n o t , i n
a n y c i r c u m s t a n c e s , b e d i s c a r d e d
w i t h h o u s e h o l d w a s t e .
Take used remote control batteries
and vehicle batteries to a special
c o l l e c t i o n p o i n t .
It is advisable to disconnect the
b a t t e r y i f t h e v e h i c l e i s t o b e l e f t u n -
u s e d f o r m o r e t h a n o n e m o n t h .
Connect the red cable to the posi-
t i v e t e r m i n a l ( + ) o f t h e fl a t b a t t e r y
A , t h e n t o t h e p o s i t i v e t e r m i n a l ( + )
o f t h e s l a v e b a t t e r y B .
Connect one end of the green or
black cable to the negative ter-
m i n a l ( - ) o f t h e s l a v e b a t t e r y B .
Operate the starter, let the en-
g i n e r u n .
Wait until the engine returns to
i d l e a n d d i s c o n n e c t t h e c a b l e s .
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P R A C T I C A L I N F O R M A T I O N
ENERGY ECONOMY MODE
S y s t e m w h i c h m a n a g e s t h e d u r a t i o n
of use of certain functions to con-
s e r v e a s u f fi c i e n t l e v e l o f c h a r g e i n
t h e b a t t e r y .
A f t e r t h e e n g i n e h a s s t o p p e d , y o u c a n
still use functions such as the audio
a n d t e l e m a t i c s s y s t e m , w i n d s c r e e n
w i p e r s , d i p p e d h e a d l a m p s , c o u r t e s y
l i g h t s , e t c . f o r a m a x i m u m c o m b i n e d
d u r a t i o n o f t h i r t y m i n u t e s . Switching to economy mode
O n c e t h e t h i r t y m i n u t e s a r e o v e r , a
message appears on the multi-func-
tion screen indicating that the vehicle
h a s s w i t c h e d t o e c o n o m y m o d e
and the active functions are put on
s t a n d b y .
Exiting economy mode
These functions are reactivated au-
t o m a t i c a l l y n e x t t i m e t h e v e h i c l e i s
d r i v e n .
In order to resume the use of these
f u n c t i o n s i m m e d i a t e l y , s t a r t t h e e n -
gine and let it run:
- for less than ten minutes to use
the equipment for an equivalent
duration,
- for more than ten minutes to use t h e e q u i p m e n t f o r a p p r o x i m a t e l y
t h i r t y m i n u t e s .
A fl a t b a t t e r y p r e v e n t s t h e
engine from starting (refer
to the corresponding para-
g r a p h ) .
Following reconnection of the
battery
F o l l o w i n g r e c o n n e c t i o n o f t h e b a t -
t e r y , s w i t c h o n t h e i g n i t i o n a n d w a i t
1 minute before starting to permit
i n i t i a l i s a t i o n o f t h e e l e c t r o n i c s y s -
t e m s . H o w e v e r , i f s l i g h t d i f fi c u l t i e s
a r e e n c o u n t e r e d f o l l o w i n g t h i s o p e r -
a t i o n , c o n t a c t a C I T R O Ë N d e a l e r .
Referring to the corresponding
s e c t i o n , y o u m u s t y o u r s e l f r e i n i t i a l -
i s e ( d e p e n d i n g o n e q u i p m e n t ) :
- t h e r e m o t e c o n t r o l k e y ,
- t h e o n e - t o u c h e l e c t r i c w i n d o w s ,
- the settings of the multifunction
screen,
- the audio equipment radio sta- tions,
- the GPS satellite navigation s y s t e m .
D o n o t d i s c o n n e c t t h e t e r -
m i n a l s w h i l e t h e e n g i n e i s
r u n n i n g .
D o n o t c h a r g e t h e b a t t e r i e s w i t h o u t
d i s c o n n e c t i n g t h e t e r m i n a l s fi r s t .
D o n o t p u s h t h e v e h i c l e t o s t a r t t h e
e n g i n e i f i t i s fi t t e d w i t h a 6 - s p e e d
e l e c t r o n i c g e a r b o x s y s t e m .
Before disconnecting
the battery
W a i t 2 m i n u t e s a f t e r s w i t c h i n g o f f
the ignition before disconnecting
t h e b a t t e r y .
C l o s e t h e w i n d o w s a n d t h e d o o r s
b e f o r e d i s c o n n e c t i n g t h e b a t t e r y .