brake CITROEN C4 2007 User Guide

111
IX
D R I V I N G
Operation in manual mode

 Move the selector to position M .

Paddle controls
behind the steer-
ing wheel
The paddles behind the steering
wheel give you access to the six for-
ward gears. - In manual mode, it is not neces-
sary to release the accelerator
completely during gear changes.
- 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
down may be performed auto-
matically.
In situations of high engine speeds
(heavy acceleration), a change up
will not occur unless the driver op-
erates the paddle.
Acceleration
For optimum acceleration (e.g. to
overtake another vehicle), simply
press the pedal beyond the point of
resistance at the end of its travel, by
pressing down fi rmly.
Vehicle stationary,
with the engine running
In the event of a prolonged stop with
the engine running, the gearbox
changes automatically to neutral N . Stopping the vehicle
Before stopping the engine, you can
choose:

 to leave the vehicle in neutral;
move the selector to position N .

 to leave the vehicle with a gear
engaged ( R , A or M ); place the
selector in the chosen position
prior to stopping the engine. In
this case, the vehicle cannot be
moved.
In all cases, it is essential to apply
the parking brake. Check that the
parking brake warning lamp is on in
the instrument panel.
Do not use the accelerator to hold
your vehicle on a gradient. Use ei-
ther the brake pedal or the parking
brake.
Before doing anything in the en-
gine compartment, check that the
selector is in neutral N .
Changing gear

 Pull the " + " paddle to change up
a gear.

 Pull the " - " paddle to change
down a gear.
The paddles do not permit you to se-
lect neutral or reverse gear, or to exit
reverse gear.
- If the vehicle stops or reduces speed (for example when ap-
proaching a stop sign), the gearbox
changes down automatically, to fi rst
gear if needed.

112
IX
D R I V I N G
HILL START ASSIST (WITH THE 6-SPEED ELECTRONIC GEARBOX SYSTEM)
System which holds your vehicle tem-
porarily (approximately 2 seconds)
when starting on a gradient, the time it
takes to move your foot from the brake
pedal to the accelerator pedal.
This function is only active when:
- the vehicle is completely station-ary, with your foot on the brake
pedal,
- in particular conditions on a slope,
- with the driver’s door closed.
The hill start assist function cannot
be deactivated. Operation
Operating fault
If a malfunction of the system oc-
curs, these warning lamps come on.
Contact a CITROËN dealer to have
the system checked.

On an ascending slope, with the
vehicle stationary, the vehicle is
held
momentarily
when you re-
lease the brake pedal:
- provided you are in A or M on an
electronic gearbox,
On a descending slope, with the
vehicle stationary and reverse
gear engaged, the vehicle is held

momentarily
when you release
the brake pedal.
do not exit the vehicle while
it is being held in the hill
start assist phase.
If you need to exit the vehi-
cle with the engine running, manu-
ally apply the parking brake and
ensure that the warning lamp P
(red) on the instrument panel is
permanently on.

113
IX
D R I V I N G
AUTOMATIC GEARBOX
Automatic gearbox which offers a
choice between the comfort of fully
automatic operation, enhanced by
the sport and snow programmes, or
manual gear changing.
Therefore, you have a choice of four
driving modes:
- automatic operation for elec-
tronic control of the gears by the
gearbox,
- the SPORT programme for a
more dynamic style of driving,
- the SNOW programme to im-
prove driving in conditions of
poor grip,
- manual operation for sequen-
tial changing of the gears by the
driver. Mode selection

 Automatic mode: selector in po-
sition D .

 Sequential mode: selector in po-
sition M .

 SPORT mode: selector in posi-
tion D with button " S " pressed.

 SNOW mode: selector in posi-
tion D with button "  " pressed.
Displays on the instrument
panel
The position of the gear selector is
displayed on the instrument panel.
A position grille on the selector al-
lows you to view the position that is
selected.

 To start the engine, the selector
has to be in position P or N .
For safety:
- position
P can be disengaged
only if you press the brake
pedal,
- when a door is opened, an au- dible signal is heard if the se-
lector is not in position P ,
- always make sure that the se- lector is in position P before
you leave your vehicle.
If the gearbox is in position P but the
position of the selector is different,
reposition the selector on P so that
you can start the vehicle.
Moving off

114
IX
D R I V I N G

 Press the brake pedal.

 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.

 Gradually release the brake ped-
al and accelerate.

 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 pedal
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
following conditions:
- driving style,
- road profi le,
- 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 maxi-
mum 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 posi-
tioned.

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.

129
X
C H E C K S
CHECKING LEVELS
Check all of these levels regularly
and top them up if necessary, unless
otherwise indicated.
If a level drops signifi cantly, have the
corresponding system checked by a
CITROËN dealer.
Oil level
Oil change
Refer to the Maintenance and
Warranty Guide for details of the in-
terval for this operation. Oil specifi cation
The oil must correspond to your engine
and conform to the manufacturer's
recommendations.
Brake fluid level
Fluid change
Refer to the Maintenance and
Warranty Guide for details of the in-
terval for this operation.
This fl uid must be changed regu-
larly. Fluid which has been used for
too long may cause a loss of braking
effi ciency.
Fluid specifi cation
The brake fl uid must conform to the
manufacturer's recommendations and
fulfi l the DOT4 standards.
Coolant level
Draining the system
The coolant does not have to be
changed.
Fluid specifi cation
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. The brake fl uid level should
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 tem-
perature of the coolant is regulated
by the fan. This can operate with the
ignition off.

On vehicles which are fi tted with
a particle emission fi lter, the fan
may operate after the vehicle has
been switched off, even if the en-
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, 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.
In order to maintain the re-
liability of the engine and
emission control system,
the use of additives in the engine
oil is prohibited.

132
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
drop in the brake fl uid level indicates
that the brake pads are worn.
Manual gearbox
The gearbox does not re-
quire any maintenance (no
oil change).
6-speed electronic gearbox
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 a loss of effectiveness
of this system is noticed,
the parking brake must be
checked, 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
and specifi cations.
In order to optimise the operation
of units as important as the braking
system, CITROËN selects and of-
fers very specifi c products.
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 component.
Refer to the Maintenance and
Warranty Guide for details of the
level checking interval for this com-
ponent.

145
XI
P R A C T I C A L I N F O R M A T I O N
Number plate lamps (W 5 W)

 Insert a thin screwdriver into one
of the external holes of the lens.

 Push it outwards to unclip it.

 Remove the lens.

 Change the faulty bulb. Third brake lamp (diodes)
For the replacement of this type of diode lamp, contact a C
ITROËN dealer.

162
XII
T E C H N I C A L D A T A

WEIGHTS AND TOWED LOADS (5-DOOR) in kg

Petrol engines 1.4
L
16V
1.6
L
16V
110 hp
1.6
L
16VTi
120 hp
1.6
L
THP
16V 150 hp
1.6
L
THP
16V 140 hp
1.6
L
16V
BioFlex

Gearboxes Manual

Manual
Auto.
Manual
Auto. Manual Auto. Manual

Model codes:
LA... LC... LG... LR...
KFU-C NFU-C NFU-F 5FW-C 5FW-F 5FX-H 5FT-F NFU-C/FF
- Unladen weight 1 182 1 200 1 274 1 220 1 273 1 276 1 290 1 200
- Kerb weight 1 257 1 275 1 349 1 295 1 348 1 351 1 365 1 275
- Payload 520 532 520 511 488 48 7 486 532
- Gross vehicle weight (GVW) 1 702 1 732 1 794 1 731 1 761 1 763 1 776 1 732
- Gross train weight (GTW) 2 902 2 932 2 994 3 031 3 031 3 163 3 076 2 932
- Braked trailer (within GTW limit)
on a 10 % or 12 % gradient 1 200 1 200 1 30 0 1 270 1 400 1 300 1 200
on an 8 % or 10 % gradient 1 200 1 200 1 30 0 1 270 1 400 1 300 1 200
on a gradient of less than 8 % 1 500 1 400 1 400 1 300 1 500 1 350 1 400
- Unbraked trailer 628 637 674 645 67 0 645 680 637
- Recommended nose weight 63 61 62 65 70 70 61
The GTW and towed load values indicated apply up to a maximum altitude of 1,000 metres; the towed load mentioned
must be reduced by 10 % for each additional 1,000 metres of a ltitude.
The speed of a towing vehicle must not exceed 100 km/h (appro x. 60 mph) (comply with the legislation in force in your
country).
High exterior temperatures may result in a reduction in the perf ormance of the vehicle in order to protect the engine; when
the exterior temperature is higher than 37 °C, limit the wei ght towed.

163
XII
T E C H N I C A L D A T A
WEIGHTS AND TOWED LOADS (3-DOOR) in kg

Petrol engines 1.4
L
16V 1.6
L
16V 110 hp 1.6
L
16VTi 120 hp
1.6
L
THP
16V 150 hp
1.6
L
16V
BioFlex

Gearboxes Manual Manual Auto. Manual Auto. Manual Manual

Model codes:
LA... LC... LG... LR...
KFU-C NFU-C NFU-F 5FW-C 5FW-F 5FX-H NFU-C/FF
- Unladen weight 1 181 1 200 1 278 1 217 1 273 1 271 1 200
- Kerb weight 1 256 1 275 1 353 1 292 1 348 1 346 1 275
- Payload 520 520 520 510 484 48 3 520
- Gross vehicle weight (GVW) 1 701 1 720 1 798 1 727 1 757 1 754 1 720
- Gross train weight (GTW) 2 901 2 920 2 998 3 027 3 027 3 154 2 920
- Braked trailer (within GTW limit)
on a 10 % or 12 % gradient 1 200 1 200 1 30 0 1 270 1 400 1 200
on an 8 % or 10 % gradient 1 200 1 200 1 30 0 1 270 1 400 1 200
on a gradient of less than 8 % 1 500 1 400 1 400 1 300 1 500 1 400
- Unbraked trailer 628 637 676 645 67 0 645 637
- Recommended nose weight 63 61 63 65 65 70 61
The GTW and towed load values indicated apply up to a maximum altitude of 1,000 metres; the towed load mentioned
must be reduced by 10 % for each additional 1,000 metres of a ltitude.
The speed of a towing vehicle must not exceed 100 km/h (appro x. 60 mph) (comply with the legislation in force in your
country).
High exterior temperatures may result in a reduction in the perf ormance of the vehicle in order to protect the engine; when
the exterior temperature is higher than 37 °C, limit the wei ght towed.