light Citroen C4 2009 1.G Service Manual

110
IX
D R I V I N G
Temporary manual operation
when in automatic mode
By pulling either of the paddles
" + " or " - ", you can exercise tempo-
rary control over gear changing.
The request to change gear will be
taken into account. You will still be
in automatic mode. The warning
lamp A remains lit up in the instru-
ment panel.
This function enables you to antici-
pate certain situations such as the
approach of a bend or the need to
overtake another vehicle.

 Move the selector to position A .
The warning lamp A lights up in
the instrument panel to confi rm
the selection.
The gearbox then functions in auto-
matic mode, without any action on
your part.
It constantly selects the gear that is
best suited to the following condi-
tions:
- driving style,
- road profi le,
- optimum fuel consumption.
Operation in automatic mode
Cancellation of automatic
mode
The change from position A (driv-
ing in automatic mode) to position M
(driving in manual mode) or vice
versa can be made at any time. The
warning lamp A disappears in the in-
strument panel.

115
IX
D R I V I N G
Manual operation
SPORT and SNOW
programmes
These two special programmes sup-
plement the automatic operation in
very specifi c conditions of use.
Position of the selector for manual
gear changing.
The fl ashing of the warning lamp for
the position requested signals that
this position is not yet obtained.
If the warning lamp is on fi xed, the
position is confi rmed.
Lighting of a dash in the rev coun-
ter indicates an operating fault. In
this case:
- a marked snatching may be felt
when selecting R for reverse
gear,
- the gearbox is locked in a gear,
- do not exceed 60 mph (approx. 100 km/h).
Consult a CITROËN dealer.
- A request to change gear is ac-
cepted only if the engine speed
permits it.
- For safety reasons, depending on the engine speed, a change
up or down may be performed
automatically.
- It is possible at any time to move from position D (driving in auto-
matic mode) to position M (driving
in sequential mode) or vice versa.
- The SPORT and SNOW modes
do not operate in sequential
mode.
SPORT programme "S"

 With the lever in position D and
the engine running, press but-
ton " S ".
The gearbox automatically favours a
dynamic style of driving.
" S " appears on the instrument panel.

 Move the selector to position M .

 Push the lever towards the "+"
sign to change up a gear.

 Pull the lever towards the "-"
sign to change down a gear.
- If the vehicle stops or reduces speed (for example when ap-
proaching a stop sign), the gear-
box changes down automatically,
to fi rst gear if necessary.
- In sequential mode, it is not nec- essary to release the accelerator
during gear changes. SNOW programme "
 "

 With the lever in position D and
the engine running, press button
"  ".
The gearbox adapts to driving on
slippery roads.
This programme facilitates starting
and traction in conditions of poor grip.
"  " appears on the instrument panel.
Return to automatic operation

 Press the button selected again
at any time to exit from the pro-
gramme engaged and return to
auto-adaptive mode.

116
IX
D R I V I N G
SPEED LIMITER
System which prevents the vehi-
cle from exceeding the speed pro-
grammed by the driver.
Once the limit speed has been
reached, the accelerator pedal no
longer has any effect.
The speed limiter is switched
on manually: a speed of at least
20 mph (around 30 km/h) must be
programmed.
The speed limiter cannot, in any cir-
cumstances, take the place of the
observance of speed limits or of the
vigilance and responsibility of the
driver.
Steering wheel controls
The speed limiter controls are lo-
cated on the left-hand side of the
steering wheel.
Displays on the instrument panel
The programmed information is
grouped together in zone A of the
instrument panel display.
Programming
Rotate the control 1 to the "LIM" po-
sition.
On selection of the function, the
previous memorised speed and the
information "OFF" are displayed on
the instrument panel.
With the engine running, you can
adjust the memorised maximum
speed, by means of short or long
presses on:

 button 4 to increase the memo-
rised maximum speed,

 button 2 to decrease the memo-
rised maximum speed.
Successive presses will modify the
maximum speed in steps of 1 mph
and a sustained press in steps of
3 mph. Activation
When the desired maximum speed
is displayed, press button
3 so that
the limitation is activated.
The information "OFF" then disappears from the instrument panel display.
While the function is active, pressing
the accelerator pedal will not enable
the programmed speed to be ex-
ceeded, 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.

117
IX
D R I V I N G
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 ashes.
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 exam-
ple on a steep descent or under heavy
acceleration) then the speed fl ashes.
Adapt your speed as 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.
Use of fl oor mats that are not ap-
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:
- check that the fl oor mat is cor- rectly positioned,
- never use more than one fl oor mat.

118
IX
D R I V I N G
CRUISE CONTROL
System which automatically main-
tains the vehicle speed programmed
by the driver, without any action on
the accelerator pedal.
The cruise control is switched on
manually: the vehicle speed must be
at least 25 mph (approx. 40 km/h)
and you must engage:
- fourth gear on a manual gearbox,
- second gear, in sequential mode, on an electronic gearbox or
automatic gearbox,
- position A on an electronic
gearbox or D on an automatic
gearbox.
The cruise control cannot, in any
circumstances, take the place of the
observance of speed limits or of the
vigilance and responsibility of the
driver. Steering wheel controls
The cruise control switches are
located on the left-hand side of the
steering wheel.
Displays on the instrument panel
The programmed information is
grouped together in zone
A of the
instrument panel display. Programming
Rotate the control
1 to the "REG"
position.
Activation
On selection of the function via con-
trol 1, no cruise speed has yet
been memorised.
Once the desired speed has been
reached using the accelerator, press
button 2 or button 4 . The cruise
speed is then memorised. It is dis-
played in zone A of the instrument
panel.
You can then release the accelera-
tor pedal. The vehicle will automati-
cally keep to the speed chosen.
The speed of your vehicle may vary
slightly in relation to that memo-
rised.
You can adjust the memorised speed
on the instrument panel display by
pressing on:

 button 4 to increase the speed,

 button 2 to decrease the speed.
Successive presses modify the
cruise speed in steps of 1 mph and a
sustained press in steps of 3 mph.

119
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 ashes.
You have only to release the acce-
lerator 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 message
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),
then the speed fl ashes. Adapt your
speed as necessary. Cruise control should only be used
when the driving conditions allow
you to drive at a constant speed.
Do not use it in heavy traffi c, or on
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 pedals.
To avoid any risk of interfering with
the pedals:
- check that the fl oor mat is cor-
rectly positioned,
- never use more than one fl oor mat.

125
X
C H E C K S
BLEEDING THE DIESEL FILTER
Protective cover
Removal

 Remove the protective cover by
unclipping fi rst point 1 , then 3
and 4 .

 Unclip point 2 pulling towards
you, then lift.
Refi tting

 Clip point 2 fi rst.

 Lower the cover, centring it.

 Clip points 1 and 4 , pushing ver-
tically and slightly rearwards.

 Clip point 3 , pushing vertically. Bleeding water from the fuel
filter
Bleed on a regular basis (at every
oil change).
To evacuate the water, slacken the
bleed screw or the water-in-diesel-
fuel sensor, which is located at the
base of the fi lter.
Persist until water ceases to fl ow out.
Then retighten the bleed screw or
the water-in-diesel-fuel sensor.

130
X
C H E C K S
Screenwash and headlamp
wash fluid
Fluid specifi cation
For optimum cleaning and to avoid
freezing, this fl uid must not be topped
up or replaced with plain 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 lamp,
accompanied by an audible warning
and a message on the multifunction
screen.
Topping up
This additive must be topped up by
a CITROËN dealer without delay.
Used products
Avoid prolonged contact of
used oil or fl uids with the
skin.
Most of these fl uids are harmful to
health or indeed very corrosive.
Do not discard used oil or
fl uids into sewers or onto
the ground.
Take used oil to a CITROËN dealer
(France) or an authorised waste
disposal site.
In the case of vehicles fi tted
with headlamp washers, the
minimum level of this fl uid is
indicated by an audible signal
and a message on the multifunction
screen.
Top up the level when you next stop
the vehicle.

131
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 engine.
Otherwise, have them checked by a
CITROËN dealer.
Battery The battery does not require
any maintenance.
However, check that the
terminals are clean and
correctly tightened, particu-
larly in summer and winter.
When carrying out work on the bat-
tery, refer to the "Practical information"
section for details of the precautions
to be taken before disconnecting 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 cabin fi lter may have an
adverse effect on the performance
of the air conditioning system and
generate undesirable odours.
Oil filter
Replace the oil fi lter each
time the engine oil is
changed. Particle filter system (Diesel)
Complementary to the catalytic
converter, this fi lter makes an ac-
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 audible
signal and lighting of the service
warning lamp.
This alert tells you that the particle
fi lter is starting to fi ll up (in conditions
of urban driving of exceptionally long
duration: low speeds, traffi c jams
etc.)
To regenerate the fi lter, it is advised
to drive as soon as possible, when
traffi c conditions permit, at a speed
of 40 mph (around 60 km/h) or
more for at least fi ve minutes (until
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.

134
XI
P R A C T I C A L I N F O R M A T I O N
Refi tting the wheel Dimension of the spare wheel
If your spare wheel is of different
dimensions to those on the vehicle
(identifi ed by a label), it is essential
to use it only on a temporary basis,
to drive not above 50 mph (80 km/h)
and to have the original wheel refi t-
ted as soon as possible.

Switch on your hazard
warning lamps.

It is imperative to ensure
that the occupants get out of the
vehicle and wait in a safe location.

Never get underneath the vehi-
cle if it is supported only by the
jack; use an axle stand.

The jack is designed specifi cally
for your vehicle, do not use it for
other applications.

Refi t the repaired original wheel
as soon as possible.

With a spare wheel fi tted, drive
with caution.

The wheel should be correctly
positioned fl at in the centre of
its well. Light alloy wheels
If your vehicle is equipped with
light alloy wheels and a steel spare
wheel, then if fi tting the latter it is
normal to note that the heads of the
wheel bolts do not come to bear on
the wheel rim.
The steel spare wheel is secured
by the conical tapering of the wheel
bolts’ shafts, see diagram.
When refi tting the light alloy wheel,
ensure that the wheel bolt heads are
in undamaged condition.

 Refi t the wheel in place.

 Undo the yellow central screw by
a few turns, then position it at the
centre of the wheel.

 Do up the central screw until tight
so that the wheel is securely re-
tained in place.