Braking assistance systems
Group of supplementary systems which help
you to obtain optimum braking in complete
safety in emergency situations:
-
a
nti-lock braking system (ABS),
-
e
lectronic brake force distribution (EBFD),
-
e
mergency 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 sur faces.
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. When braking in an emergency, press
very firmly without releasing the
pressure.
Operating fault
If this warning lamp comes on,
together with the STOP and ABS
warning lamps, accompanied by an
audible signal and a message in the 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.
When replacing wheels (tyres and
rims), ensure that they conform to the
manufacturer's recommendations.If this warning lamp comes on,
accompanied by an audible signal
and a message in the screen, it
indicates a malfunction of the anti-lock braking
system which could result in loss of control of
the vehicle when braking.
In either case, contact a CITROËN dealer or a
qualified workshop.
The driver must ensure that passengers use
the seat belts correctly and that they are all
restrained securely before setting off.
Wherever you are seated in the vehicle,
always fasten your seat belt, even for short
journeys.
Do not interchange the seat belt buckles as
they will not fulfil their role fully.
The seat belts are fitted with an inertia reel
permitting automatic adjustment of the length
of the strap to your size. The seat belt is
stowed automatically when not in use.
Before and after use, ensure that the seat
belt is reeled in correctly.
The lower part of the strap must be
positioned as low as possible on the pelvis.
The upper part must be positioned in the
hollow of the shoulder.
The inertia reels are fitted with an automatic
locking device which comes into operation in
the event of a collision, emergency braking
or if the vehicle rolls over. You can release
the device by pulling the strap firmly and then
releasing it so that it reels in slightly.Recommendations for
children
Use a suitable child seat if the passenger is
less than 12 years old or shorter than one
and a half metres.
Never use the same seat belt to secure
more than one person.
Never allow a child to travel on your lap.
For more information, refer to the "Child
seats" section.
Advice
In order to be effective, a seat belt must:
- b e tightened as close to the body as
possible,
-
b
e pulled in front of you with a smooth
movement, checking that it does not
twist,
-
b
e used to restrain only one person,
-
n
ot bear any trace of cuts or fraying,
-
n
ot be converted or modified to avoid
affecting its performance.
In accordance with current safety regulations,
for all repairs on your vehicle's seat belts, go
to a qualified workshop with the skills and
equipment needed, which a CITROËN dealer
is able to provide.
Have your seat belts checked regularly by
a CITROËN dealer or a qualified workshop,
particularly if the straps show signs of
damage.
Clean the seat belt straps with soapy water or
a textile cleaning product, sold by CITROËN
dealers.
After folding or moving a seat or rear bench
seat, ensure that the seat belt is positioned
and reeled in correctly.
In the event of an impact
depending on the nature and
seriousness of the impact , the
pretensioning device may be deployed
before and independently of the airbags.
Deployment of the pretensioners is
accompanied by a slight discharge of
harmless smoke and a noise, due to the
activation of the pyrotechnic cartridge
incorporated in the system.
In all cases, the airbag warning lamp
comes on.
Following an impact, have the seat belts
system checked, and if necessary replaced,
by a CITROËN dealer or a qualified
workshop.
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Airbags
General information
System designed to contribute towards
improving the safety of the occupants (with
the exception of the rear centre passenger)
in the event of violent collisions. The airbags
supplement the action of the seat belts fitted
with force limiters (all except the centre rear
passenger belt).
If a collision occurs, the electronic detectors
record and analyse the front and side impacts
sustained in the impact detection zones:
-
i
n the case of a serious impact, the airbags
are deployed instantly and contribute
towards better protection of the occupants
of the vehicle (with the exception of the
rear centre passenger); immediately after
the impact, the airbags deflate rapidly so
that they do not hinder visibility or the exit
of the occupants,
-
i
n the case of a minor or rear impact or in
certain roll-over conditions, the airbags
may not be deployed; the seat belt
alone contributes towards ensuring your
protection in these situations. The airbags do not operate when the
ignition is switched off.
This equipment will only deploy once.
If a second impact occurs (during the
same or a subsequent accident), the
airbag will not be deployed again.
Impact detection zones
A. Front impact zone.
B. S
ide impact zone.
Deployment of one or more of the
airbags is accompanied by a slight
emission of smoke and a noise, due
to the activation of the pyrotechnic
cartridge incorporated in the system.
This smoke is not harmful, but sensitive
individuals may experience slight
irritation.
The noise of detonation related to the
deployment of one or more airbags
may result in a slight loss of hearing for
a short time.
Safety
DS4_en_Chap08_conduite_ed03-2015
Driving recommendations
Observe the driving regulations and remain vigilant whatever the traffic conditions.
Pay close attention to the traffic and keep your hands on the wheel so that you are ready to react at
any time to any eventuality.
On a long journey, a break every two hours is strongly recommended.
In difficult weather, drive smoothly, anticipate the need to brake and increase the distance from
other vehicles.Never drive with the parking brake
applied - Risk of overheating and
damage to the braking system!
Do not park or run the engine when
stationary in areas where inflammable
substances and materials (dry grass,
dead leaves...) might come into contact
with the hot exhaust system - Risk of
fire!
Never leave a vehicle unsupervised
with the engine running. If you have
to leave your vehicle with the engine
running, apply the parking brake
and put the gearbox into neutral or
position
N or P, depending on the type
of gearbox.
driving on flooded roads
We strongly advise against driving on flooded
roads, as this could cause serious damage
to the engine or gearbox, as well as to the
electrical systems of your vehicle.
Important!
- check that the depth of water does not exceed 15 cm, taking account of waves
that might be generated by other users,
-
d
eactivate the Stop & Start system,
-
d
rive as slowly as possible without
stalling. In all cases, do not exceed 6 mph
(10
km/h),
-
d
o not stop and do not switch off the
engine.
If you are obliged to drive through water:
On leaving the flooded road, as soon as
circumstances allow, make several light brake
applications to dry the brake discs and pads.
If in doubt on the state of your vehicle, contact
a CITROËN dealer or a qualified workshop.
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DS4_en_Chap08_conduite_ed03-2015
When towing
distribution of loads
F Distribute the load in the trailer so that the heaviest items are as close as possible to
the axle and the nose weight approaches
the maximum permitted without
exceeding
it.
Air density decreases with altitude, thus
reducing engine per formance. Above
1
000 metres, the maximum towed load must
be reduced by 10
% for every 1 000 metres of
altitude.
Side wind
F Take into account the increased sensitivity to side wind.
Cooling
Towing a trailer on a slope increases the
temperature of the coolant.
As the fan is electrically controlled, its cooling
capacity is not dependent on the engine speed.
F
T
o lower the engine speed, reduce your
speed.
The maximum towed load on a long incline
depends on the gradient and the ambient
temperature.
In all cases, keep a check on the coolant
temperature.
F
I
f the warning lamp and the STOP
warning lamp come on, stop the
vehicle and switch off the engine
as soon as possible.
Braking
Towing a trailer increases the braking distance.
To avoid overheating of the brakes, the use of
engine braking is recommended.
Ty r e s
F Check the tyre pressures of the towing vehicle and of the trailer, observing the
recommended pressures.
Lighting
F Check the electrical lighting and signalling on the trailer and the hadlamp beam height
of your vehicle.
For more information on adjusting the
headlamp beam height, refer to the
corresponding section.
For more information on weights (and
the towed loads which apply to your
vehicle) refer to the corresponding
section.
The rear parking sensors will be
deactivated automatically if a genuine
CITROËN towbar is used.
driving
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DS4_en_Chap08_conduite_ed03-2015
Starting / Switching off the engine with Keyless Entry and
Starting
Starting the engine
F Place the gear selector lever P or N with an automatic gearbox, or neutral with a
manual gearbox.
F
W
ith the electronic key inside the vehicle,
press the brake pedal for vehicles with an
automatic gearbox, or fully declutch for
vehicles with a manual gearbox. F
B
riefly press the " S TA R T/
STOP " button while maintaining
pressure on the pedal until the
engine starts. If the electronic key is not detected
in the zone, a message is displayed.
Move the electronic key into the zone
so that the engine can be started.
If one of the starting conditions is not
met, a reminder message appears in
the instrument panel screen. In some
circumstances, it is necessary to
turn the steering wheel slightly while
pressing the " START/STOP " button
to assist unlocking of the steering;
a message warns you when this is
needed.
The presence of the "Keyless Entry
and Starting" electronic key in the
recognition zone is essential.
As a safety measure, do not leave this
zone with the vehicle running.
diesel vehicles
In temperatures below zero
the engine will not start until
the preheater warning lamp
has gone off.
If this warning lamp comes on after
pressing " START/STOP ", you should
hold the brake or clutch pedal down
until the warning lamp goes off and do
not press the " START/STOP" button
again.
The steering column unlocks and the engine
starts more or less instantly.
See the advice below for Diesel versions.
It is not necessary to place the electronic key in
the reader.
driving
DS4_en_Chap08_conduite_ed03-2015
Stop & StartThe Stop & Start system puts the engine temporarily into standby - STOP mode - during stops in the traffic (red lights, traffic jams, or other...).
T he engine restarts automatically - START mode - as soon as you want to move off. The restart takes place instantly, quickly and silently.
Per fect for urban use, the Stop & Start system reduces fuel consumption and exhaust emissions as well as the noise level when stationary.
Operation
Going into engine STOP mode
STOP mode does not affect the
functionality of the vehicle, such as
braking, power steering, for example.
Never refuel with the engine in STOP
mode; you must switch off the ignition
with the key or the "START/STOP"
button.
The "ECO" warning lamp comes on in
the instrument panel and the engine
goes into standby automatically:
- with a manual gearbox, at speeds below 12 mph (20 km/h), or vehicle stationary with
PureTech 130 petrol and BlueHDi 115 and
120 Diesel versions, when you put the gear
lever into neutral and release the clutch
pedal,
-
w
ith an automatic gearbox, vehicle
stationary, when you press the brake pedal
or place the gear selector in position N .
If your vehicle is fitted with the
system, a time counter calculates
the sum of the periods in STOP
mode during a journey. It resets
itself to zero every time the
ignition is switched on with the key
or the "START/STOP" button.
STOP mode is not invoked when:
-
t he vehicle is on a steep slope (up or down),
-
t
he driver's door is open,
-
t
he driver's seat belt is not fastened,
-
t
he vehicle has not exceeded 6 mph (10 km/h)
since the last engine start (using the key or the
"START/STOP" button),
-
t
he electric parking brake is applied or being
applied,
-
t
he engine is needed to maintain a comfortable
temperature in the passenger compartment,
-
d
emisting is active,
-
s
ome special conditions (battery charge,
engine temperature, braking assistance,
ambient temperature...) where the engine is
needed to assure control of a system.
Special cases: STOP mode
unavailable
In this case, the "ECO" warning lamp
flashes for a few seconds, then goes
of f.
This operation is perfectly normal.
DS4_en_Chap08_conduite_ed03-2015
No alert will be given in the following situations:
- i n the presence of immobile objects
(parked vehicles, barriers, street lamps,
road signs...),
-
w
ith vehicles moving in the opposite
direction,
-
d
riving on a sinuous road or a sharp
c o r n e r,
The alert is given by a warning lamp which
comes on in the door mirror on the side in
question as soon as a vehicle - car, lorry,
cycle
- is detected.
For this, the following conditions must be met:
-
a
ll the vehicles must be moving in the
same direction,
-
t
he speed of your vehicle is between 7 and
75 mph (12 and 140 km/h),
-
w
hen you overtake a vehicle with a speed
difference of less than 6 mph (10 km/h),
-
w
hen a vehicle overtakes you with a speed
difference of less than 15 mph (25 km/h),
-
t
he traffic must be flowing normally,
-
i
n the case of an overtaking manoeuvre,
if this is prolonged and the vehicle being
overtaken remains in the blind spot,
-
y
ou are driving on a straight or slightly
curved road,
-
y
our vehicle is not pulling a trailer, a
caravan... -
w hen overtaking (or being overtaken by) a
very long vehicle (lorry, coach...) which is
at the same time detected at the rear in the
blind spot angle and present in the driver's
forward field of vision,
-
i
n very heavy traffic: vehicles detected in
front and behind are confused with a lorry
or a stationary object,
-
w
hen overtaking quickly.