2008.5 Citroen C4 DAG brake

97
VIII
S A F E T Y
BRAKING ASSISTANCE SYSTEMS
Group of supplementary systems
which help you to obtain optimum
braking in complete safety in emer-
gency situations:
- anti-lock braking system (ABS),
- electronic brake force distribu-tion (EBFD),
- emergency braking assistance (EBA).
Anti-lock braking system
and electronic brake force
distribution
Linked systems which improve the
stability and manoeuvrability of your
vehicle when braking, in particular
on poor or slippery surfaces.
Activation
The anti-lock braking system comes
into operation automatically when
there is a risk of wheel lock.
Normal operation of the ABS may
make itself felt by slight vibration of
the brake pedal. Operating fault
When braking in an emergency,
press very fi rmly without releasing
the pressure. If this warning lamp comes
on, accompanied by an
audible signal and a mes-
sage on the multi-function
screen, it indicates a malfunction of
the anti-lock braking system which
could result in loss of control of the
vehicle when braking.
If this warning light comes
on, together with the STOP
and ABS warning lamps,
accompanied by an audi-
ble signal and a message on the
multifunction screen, it indicates a
malfunction of the electronic brake
force distribution which could result
in loss of control of the vehicle when
braking.

You MUST stop as soon as it is
safe to do so.
In both cases, contact a CITROËN
dealer.
When replacing wheels (tyres and
rims), ensure that they conform to
the manufacturer's recommenda-
tions. Emergency braking assistance
System which, in an emergency,
enables you to obtain the optimum
braking pressure more quickly, thus
reducing the stopping distance.
Activation
It is triggered by the speed at which
the brake pedal is pressed.
The effect of this is a reduction in
the resistance of the pedal and an
increase in braking effi ciency.
When braking in an emergency,
press fi rmly without releasing the
pressure.

98
VIII
S A F E T Y
TRAJECTORY CONTROL SYSTEMS
Anti-skid regulation (ASR) and
electronic stability programme
(ESP)
The anti-skid regulation optimises
traction to prevent skidding of the
wheels, by acting on the brakes of
the driving wheels and on the en-
gine.
The electronic stability programme
acts on the brake of one or more
wheels and on the engine to keep
the vehicle on the trajectory required
by the driver.
Activation
These systems are activated auto-
matically each time the vehicle is
started.
They come into operation in the event
of a grip or trajectory problem. This is indicated by fl ashing
of this warning lamp on the
instrument panel. Deactivation
In exceptional conditions (starting a
vehicle which is bogged down, stuck
in snow, on soft ground...), it may be
advisable to deactivate the ASR and
ESP systems, so that the wheels
can move freely and regain grip.

 Press the "ESP OFF" button,
located in the centre of the fascia. Reactivation
These systems are reactivated
automatically each time the ignition
is switched back on or from 30 mph
(50 km/h).

 Press the "ESP OFF" button again
to reactivate them manually.
If this warning lamp comes
on in the instrument panel
and the indicator lamp on the
button comes on, this indi-
cates that the ASR and ESP
systems are deactivated. Operating fault
If this warning lamp comes
on, accompanied by an
audible signal and a mes-
sage on the multifunction
screen, this indicates a malfunction
of these systems.
Have the systems checked by a
CITROËN dealer.
The ESP/ASR systems offer excep-
tional safety in normal driving, but
this should not encourage the driver
to take extra risks or drive at high
speed.
The correct functioning of these
systems depends on observation
of the manufacturer's recommen-
dations regarding the wheels (tyres
and rims), the braking components,
the electronic components and the
CITROËN assembly and operation
procedures.
After an impact, have these systems
checked by a CITROËN dealer.

106
IX
D R I V I N G
HANDBRAKE
Mechanical brake to hold the vehicle
when stationary.
Applying

 Pull the handbrake to immobilise
your vehicle.
Releasing

 Pull on the handle and press the
button A to release the handbrake.
When the vehicle is being driven,
if this warning lamp and the STOP
warning lamp come on, accompa-
nied by an audible signal and a mes-
sage on the multi-function screen,
this indicates that the handbrake
is still on or has not been properly
released.
When parking on a slope, direct
your wheels against the pavement,
pull the handbrake on and engage
a gear.
5-SPEED MANUAL GEARBOX
Starting the vehicle

 Check that the gear lever is in
neutral.

 Do not touch the accelerator.

 For Diesel engines: turn the
key to position M and wait until
the pre-heating warning lamp
switches off if it has come on.

 Operate the starter, turning the
key until the engine starts (no
more than ten seconds).

 In temperatures lower than 0 °C,
declutch whilst turning the starter
to facilitate starting. Engaging reverse gear

 Push the gear lever to the
right then rearwards.
Only engage reverse gear when
the vehicle is stationary with the
engine at idle.

108
IX
D R I V I N G
Displays on the instrument
panel
- The selector position is displayed in the instrument panel, on the
left on multifunction screens A
and C and on the right on the
NaviDrive multifunction screen.
- A background-lit position grille associated with the selector al-
lows you to view the position se-
lected. Moving off

When the ignition is on, light-
ing of the service warning lamp,
accompanied by
an audible
sig-
nal and the message "Gearbox
faulty" indicates a malfunction.
Consult a CITROËN dealer.
For safety:

 Position N can only be disen-
gaged if you are pressing the
brake pedal.

 If the gearbox is in position N
but the selector position is dif-
ferent, reposition the selec-
tor on N in order to be able to
start.
 To start the engine, the selector
has to be in position N .

 Press fi rmly on the brake pedal.

 Operate the starter.

 When the engine is running,
place the selector on R , A or M
as desired.

 Check, in the instrument panel,
the position engaged.

 Release the brake pedal and
accelerate.
If the selector is not in position N ,
and/or if the brake pedal is not
pressed, the corresponding warning
lamp(s) are displayed and a mes-
sage informs you that at least one of
these two conditions is not met.
In this case, the engine will not start,
recommence the above procedure.
Engaging reverse gear
To engage reverse gear, move the
selector to R .

Only attempt to
select
reverse gear
when the vehicle is stationary.
If the vehicle is moving rapidly, if
an inadvertent attempt to engage
reverse gear is made, the warning
lamp N will fl ash and your vehicle
will go automatically into neutral. To
re-engage a gear, you have only to
reposition the selector on A , M or R .
Reverse gear

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

 Move the selector to position M .

Controls
behind
the steering 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 accepted 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
operates 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 lit up
in the instrument panel.
Do not use the accelerator to hold
your vehicle on a gradient. Use
either the brake pedal or the parking
brake.
Before doing anything in the engine
compartment, check that the selec-
tor 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
select neutral or reverse gear, or to
exit reverse gear.
- If the vehicle stops or reduces speed (for example when
approaching a stop sign), the
gearbox changes down auto-
matically, 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 stationary, 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
occurs, 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 for a brief moment when you
release 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
for a brief moment 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 vehicle with
the engine running, manually 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 improve
driving in conditions of poor grip,
- manual operation for sequen-
tial changing of the gears by the
driver. Mode selection

 automatic mode: selector in posi-
tion D ,

 sequential mode: selector in posi-
tion 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
allows 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 audible signal is heard if the
selector is not in position P ,
- always make sure that the selector is in position P before
you leave your vehicle.
If the gearbox is in position P but
the position of the selector is diffe-
rent, reposition the selector on P
so that you can start the vehicle.
Moving off

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
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
position (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
engaging 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 follo-
wing conditions: - driving style,
- road profi le,
- vehicle load.
The gearbox is then operating in

auto-adaptive mode, without requi-
ring any action on your part.
For certain manoeuvres (for example
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
engage a higher gear.

 To exit position P , move the
selector 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.