2010 CITROEN DS4 brake

185
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 exterior
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 headlamp beam
height of your vehicle.
For more information on Adjusting the
headlamp beam height , refer to the
corresponding section.
For more information on Weights
, refer
to the corresponding section.
The rear parking sensors will be
deactivated automatically to avoid the
audible signal if a genuine CITROËN
towbar is used.
If the exterior temperature is high, it
is recommended that the engine be
allowed to idle for 1 to 2 minutes after
the vehicle comes to a stop, to facilitate
its cooling.
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187
In wintry conditions, the warning lamp
can stay on for a longer period. When
the engine is hot, the warning lamp
does not come on.
In certain cases, you may have to apply
more force to the steering (wheels on
full lock, for example). If the engine does not start straight
away, switch off the ignition. Wait a
few moments before operating the
starter motor again. If the engine does
not start after several attempts, do not
keep trying: you risk damaging the
starter motor or the engine. Contact
a CITROËN dealer or a qualified
workshop.In temperate conditions, do not leave
the engine at idle to warm up but move
off straight away and drive at moderate
speed.
Never leave the engine running in
an enclosed area without adequate
ventilation: internal combustion
engines emit toxic exhaust gases,
such as carbon monoxide. Danger of
intoxication and death!
In very severe wintry conditions
(temperatures below -23°C), to ensure
the correct operation and durability of
the mechanical components of your
vehicle, engine and gearbox, it is
necessary to leave the engine running
for 4 minutes before moving off.
Starting the engine
The parking brake must be applied.
F
W ith a manual gearbox, place the gear
lever in neutral and depress the clutch
pedal fully.
F

W
ith an automatic gearbox, place the
selector in position N or P and press the
brake pedal fully.
F

I
nsert the key into the ignition switch; the
system recognises the code.
F

U
nlock the steering column by
simultaneously turning the steering and the
key.
F

W
ith a petrol engine, operate the starter
motor by turning the key to position 3
without pressing the accelerator pedal,
until the engine starts. Once the engine is
running, release the key.
F

W
ith a Diesel engine, turn the key to
position 2 , ignition on, to operate the
engine pre-heating system.Wait until this warning lamp goes off in the
instrument panel then operate the starter
motor by turning the key to position
3
without pressing the accelerator pedal,
until the engine starts. Once the engine is
running, release the key.
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Key left in the "Ignition on"
position
If the key has been left in the ignition switch
at position 2 (Ignition on), the ignition will
be switched off automatically after one hour.
To switch the ignition back on, turn the
key to position 1 (Stop) , then back to
position
2

(Ignition on) .
F Stop the vehicle.
F
W ith the engine running at idle, turn the key
to position 1 .
F

R
emove the key from the ignition switch.
F

T
o lock the steering column, turn the
steering until it locks.
Switching off the engine
To facilitate unlocking of the steering
column, it is recommended that the
wheels be returned to the straight ahead
position before switching off the engine. When you leave the vehicle, keep the
key with you and lock the vehicle.
For more information on Energy
economy mode
, refer to the
corresponding section.
Never switch off the ignition before the
vehicle is at a complete stop. With the
engine off, the braking and steering
assistance systems are also cut off:
risk of loss of control of the vehicle.Energy economy mode
After switching off the engine (position 1- Stop
),
for a maximum of 30 minutes you can still use
functions such as the audio and telematic
system, the wipers, dipped beam headlamps,
courtesy lamps, ...
F

C

heck that the parking brake is correctly
applied, particularly on sloping ground.
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189
Starting / Switching off the engine with Keyless Entry and
S tarting
Starting the engine
F With a manual gearbox, place the gear
lever in neutral and declutch fully.
F

W
ith an automatic gearbox, place the gear
selector at P or N and press the brake
pedal. 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.
See the advice for Diesel versions.
F

P

lace the electronic key inside the vehicle:
there is no need to place it in the reader.
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Switching off the engine
If the vehicle is not immobilised, the
engine will not stop.
Do not leave your vehicle with the
electronic key still inside.
Switching off the engine leads to a loss
of braking assistance.
F

I

mmobilise the vehicle.
F

W
ith a manual gearbox, place the gear
lever in neutral.
F

W
ith an automatic gearbox, place the gear
selector at P or N .
F
W
ith the electronic key inside
the vehicle, press the " S TA R T/
STOP " button.
The engine stops and the steering
column locks.
Emergency starting
When the electronic key is in the recognition
zone and, after pressing the " START/STOP"
button, the engine does not start:
F

W
ith a manual gearbox, place the gear
lever in neutral.
F

W
ith an automatic gearbox, place the gear
selector at P or N . F
O pen the front armrest.
F

R
aise the mat by its tab and remove it.
F

P
lace the electronic key in the back-up
reader.
F

W
ith an automatic gearbox, press the
brake pedal.
F

W
ith a manual gearbox, declutch fully.F

P
ress the "START/STOP "
button.
T

he engine starts.
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Manual parking brake
ApplyingReleasing
F Pull the parking brake lever up gently,
press the release button then lower the
lever fully. When parking on a slope, direct your
wheels against the kerb, apply the
parking brake, engage a gear and
switch off the ignition.
When the vehicle is being driven,
if this warning lamp and the STOP
warning lamp come on, accompanied
by an audible signal and a message
in the multifunction screen, this
indicates that the parking brake is still
on or has not been properly released.
F

P

ull the parking brake lever fully up to
immobilise your vehicle.
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Electric parking brake
The electric parking brake has two operating
modes:
-
A
utomatic application

/ release
A

pplication is automatic when the engine
stops, release is automatic on use of the
accelerator (activated by default),
-

M
anual application

/ release
T

he parking brake can be applied /
released manually by pulling control
lever


A. Do not place any object (packet of
cigarettes, telephone...) between the
gear lever and the electric parking
brake control lever. It is recommended that you do not
apply the parking brake in very cold
conditions (ice) and during towing
(breakdown, caravan...). Deactivate the
automatic functions and release the
parking brake manually.
If this warning lamp comes on in
the instrument panel, the automatic
mode is deactivated.
Programming the mode
Depending on the country of sale of the vehicle,
the automatic application when the engine is
switched off and the automatic release when
you press the accelerator can be deactivated. Activation
/ deactivation is done
using the vehicle configuration
menu; refer to the section covering
the configuration of your vehicle's
systems.
The parking brake is then applied and released
manually. When the driver's door is opened,
there is an audible signal and a message is
displayed if the parking brake is not applied.
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With the ignition on or the engine running, to
release the parking brake, press on the brake
pedal or the accelerator, pull then release
control A .
Manual release
Before leaving the vehicle, ensure
that parking brake warning lamp in the
instrument panel is on fixed, not flashing.
Manual application
With the vehicle stationary, to apply the parking
brake whether the engine is running or off, pull
control lever A .
The application of the parking brake is
confirmed by: -
i

llumination of the braking warning
lamp and of the P warning lamp in
the control lever A ,
-

d
isplay of the message "Parking
brake on".
When the driver’s door is opened with the
engine running, a message is displayed
accompanied by an audible signal if the parking
brake has not been applied.
With an automatic gearbox, the audible signal
and the message will not appear if the gear
selector is at position P . The full application of the parking brake is
confirmed by:
-

t
he braking warning lamp and
the P warning lamp in the control
lever A going off,
-

d
isplay of the message "Parking
brake off ".
If you pull control lever A without
pressing the brake pedal, the parking
brake will not be released and a
warning lamp will come on in the
instrument panel.
Maximum application
If necessary, you can make a maximum
application of the parking brake. This is
obtained by means of a long pull on the control
lever A , until you see the message "Parking
brake on maximum" and a beep is heard.
Maximum application is essential:
-

i
n the case of a vehicle towing a caravan
or a trailer, if the automatic functions are
activated but you are applying the parking
brake manually,
-

w
hen the gradient you are parked on may
vary (e.g. on a ferry, on a lorry, during
towing),
In the case of towing, a loaded vehicle
or parking on a gradient, make a
maximum application of the parking
brake then turn the front wheels
towards the pavement and engage a
gear when you park.
After a maximum application, the
release time will be longer.
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Driving