2008.5 Citroen C4 check engine
[x] Cancel search: check enginePage 135 of 282
114
IX
D R I V I N G
Operate the starter.
When the engine is running,
place the selector on R , D or M
as required.
Check, in the instrument panel,
the position engaged.
Release the brake pedal and ac-
celerate.
To avoid a difference between
the position of the selector and
the actual position of the gear-
box, only exit from position P
with the ignition on and the brake
pedal pressed.
Park Reverse gear
This position of the selector is used
to prevent the vehicle from moving
when you are stationary.
To select position P, move the
selector back to the highest po-
sition (towards R ), then push it
forwards and then to the left. Only engage this position when
the vehicle is stationary. To prevent
snatching, do not accelerate too
soon after selection.
Neutral
Never select position N if the vehicle
is moving.
Never select positions P or
R if the vehicle is not sta-
tionary.
If, while the vehicle is moving, po-
sition N is engaged inadvertently,
allow the engine to idle before en-
gaging position D or M .
Otherwise, when the ignition is on or
the engine is running:
reposition the selector in position P ,
put your foot on the brake ped-
al and then select the gear you
want. Automatic operation
Move the selector to position D .
The gearbox constantly selects the
gear that is best suited to the follow-
ing conditions: - driving style,
- r o a d p r o fi l e ,
- vehicle load.
The gearbox is then operating in
auto-adaptive mode, without re-
quiring any action on your part.
For certain manoeuvres (for exam-
ple overtaking), you can obtain max-
imum acceleration by pressing the
accelerator pedal down hard, which
then produces an automatic change
down to a lower gear.
When braking, the gearbox may
change down automatically in order
to provide effective engine braking.
If you lift your foot off the accelera-
tor abruptly, the gearbox will not
change up.
To exit position P , move the se-
lector to the right and then to the
position you want.
Only engage this position when
the vehicle is completely sta-
tionary. In this position, the front
wheels are locked. Make sure
that the selector is correctly po-
sitioned.
Page 140 of 282
118
IX
D R I V I N G
Activation
When the desired maximum speed
is displayed, press button 3 so that
the limitation is activated.
The information "OFF" then disap-
pears from the instrument panel dis-
play.
While the function is active, press-
ing the accelerator pedal will not en-
able the programmed speed to be
exceeded, except if you press the
pedal hard down to beyond the end-
of-travel switch.
The speed of your vehicle may vary
slightly in relation to that memo-
rised.
Deactivation
Press on button 3 .
This action causes the information
"OFF" to appear on the instrument
panel display.
This action does not cancel the
memorised maximum speed which
remains displayed in zone A of the
instrument panel. Override of the programmed
speed
The accelerator pedal is equipped
with an end-of-travel switch. If you
action this switch by pressing the
pedal hard down, you can exceed
the memorised maximum speed at
any time.
During the time the speed is be-
ing exceeded, the displayed speed
fl a s h e s .
You have only to release the ac-
celerator pedal to return below the
maximum speed and render the
function active again.
If during the operation of the speed
limiter, the system is unable to keep
within the maximum speed (for
example on a steep descent or un-
der heavy acceleration) then the
s p e e d fl a s h e s . A d a p t y o u r s p e e d a s
necessary.
The function will re-engage when
your speed returns below the de-
sired maximum speed.
Return to normal driving
By moving the control 1 from po-
sition "LIM" to position 0 .
By the engine stopping.
The speed previously chosen is still
memorised.
Operating fault
If there is a speed limiter malfunc-
tion, a message will display accom-
panied by an audible signal and
lighting of the service warning lamp.
Have it checked by a CITROËN
dealer.
On a steep downhill gradient or on
sharp acceleration, the speed limiter
will not be able to prevent the vehi-
cle from exceeding the programmed
speed.
U s e o f fl o o r m a t s t h a t a r e n o t a p -
proved by CITROËN may hinder
access to the accelerator pedal and
thus interfere with the functioning of
the speed limiter.
To avoid any risk of interfering with
the pedals:
- c h e c k t h a t t h e fl o o r m a t i s c o r - rectly positioned,
- n e v e r u s e m o r e t h a n o n e fl o o r mat.
Page 142 of 282
120
IX
D R I V I N G
Deactivation
Either by pressing on the brake
pedal or on the clutch pedal.
Or by pressing button 3 .
Or if either the ESP or the ASR
system is active.
The cruise control is not active if the
gear lever is in neutral.
These actions cause the information
"OFF" to appear on the instrument
panel display.
These actions do not cancel the
cruise speed which remains dis-
played in the instrument panel.
Reactivation
By recall of the memorised
speed
After a disengagement, press on button 3 . Your vehicle automati-
cally returns to the memorised
cruise speed which is displayed
in zone A .
If the memorised cruise speed is higher than the current speed,
the vehicle will accelerate to
reach the former.
By selection of the current
speed
Press on button 2 or 4 once the
desired speed has been reached.
The information "OFF" will then
disappear from the instrument
panel display. Overriding the programmed
speed
During the operation of cruise con-
trol, it is always possible to use the
accelerator to go faster than the
cruise speed (for example to over-
take another vehicle). The speed
displayed in zone
A fl a s h e s .
You have only to release the accel-
erator pedal to return to the cruise
speed.
Return to normal driving
By an action on the control 1 from
position "REG" to position 0 .
By the engine stopping.
The cruise speed previously chosen
is no longer memorised. Operating fault
If there is a malfunction, a mes-
sage will display accompanied by
an audible signal and lighting of the
service warning lamp.
Have it checked by a CITROËN
dealer.
If during the operation of cruise
control, the system is unable to
keep within the memorised speed
(for example on a steep descent),
t h e n t h e s p e e d fl a s h e s . A d a p t y o u r
speed as necessary. Cruise control should only be used
when the driving conditions allow
you to drive at a constant speed.
D o n o t u s e i t i n h e a v y t r a f fi c , o r o n
dangerous or slippery roads.
The driver must remain attentive
and in full control of his vehicle.
You are recommended to keep
your feet within range of the ped-
als.
To avoid any risk of interfering with
the pedals:
- c h e c k t h a t t h e fl o o r m a t i s c o r -
rectly positioned,
- n e v e r u s e m o r e t h a n o n e fl o o r mat.
Page 151 of 282
130
X
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 system checked by a
CITROËN dealer.
Oil level
Draining the engine
Refer to the Maintenance and
Warranty Guide for details of the in-
terval for this operation. O i l s p e c i fi c a t i o n
The oil must correspond to your en-
gine and conform to the manufactur-
er’s recommendations.
Brake fluid level
Draining the circuit
Refer to the Maintenance and
Warranty Guide for details of the in-
terval 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 -
larly. Fluid which has been used for
too long 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.
Page 153 of 282
132
X
C H E C K S
CHECKS
Unless otherwise indicated, check
these components in accordance
with the Maintenance and Warranty
Guide and according 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 c l o g g e d c a b i n fi l t e r m a y h a v e a n
adverse effect on the performance
of the air conditioning 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 an audi-
ble signal and lighting of the serv-
ice 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 -
tions of urban driving of excep-
tionally long duration: low speeds,
t r a f fi c j a m s e t c . ) .
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
component.
Page 154 of 282
133
X
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
For information relating to
checking the brake disc
wear, contact a CITROËN
dealer.
Parking brake If the parking brake travel is
too long or if a loss of effec-
tiveness of this system is
noticed, the parking brake
must be adjusted, even be-
tween two services.
This system must be checked by a
CITROËN dealer. Only use products recom-
mended by CITROËN or
products of equivalent qual-
i t y 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
level checking interval for this com-
ponent.
Refer to the Maintenance and
Warranty Guide for details of the
checking interval for this compo-
nent.
Refer to the Maintenance and
Warranty Guide for details of the
level checking interval for this
component.
Page 169 of 282
147
XI
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, careful-
ly
r e fi t
the cover. If the cover
is not correctly positioned or
not properly closed, this could
cause serious problems on your
vehicle. For the same reason,
take care not to spill any liquid
in the fusebox. 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 .
Page 170 of 282
147
XI
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, careful-
ly
r e fi t
the cover. If the cover
is not correctly positioned or
not properly closed, this could
cause serious problems on your
vehicle. For the same reason,
take care not to spill any liquid
in the fusebox. 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 .