2018 CITROEN DS4 brake

133
In case of towing
Driving with a trailer places greater
demands on the towing vehicle and
requires extra care from the driver.
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 performance. The maximum
towed load must be reduced by 10% for every
1,000 metres of altitude.
For more information on the Technical
data of your vehicle and particularly on
towable loads, refer to the corresponding
section.
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.
Side wind
F Take into account the increased sensitivity to 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 this 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 Headlamp
adjustment , refer to the corresponding
section.
The rear parking sensors will be
deactivated automatically to avoid
the audible signal if a genuine DS
AUTOMOBILES towbar is used.
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134
Anti-theft protection
Electronic immobiliser
The keys contain an electronic chip which has
a specific code. When the ignition is switched
on, this code must be recognised to allow the
engine to be started.
This electronic engine immobiliser locks the
engine management system a few minutes
after the ignition is switched off and prevents
starting of the engine by anyone who does not
have the key.In the event of a fault, you are
informed by illumination of this
warning lamp, an audible signal
and/or the display of a message,
depending on version.
Starting/Switching off the
engine with the key
Ignition switch
It has 3 positions:
- position 1 (Stop): inserting and removing
the key, steering column locked,
-
position 2 (Ignition on) : steering column
unlocked, ignition on, Diesel preheating,
engine running,
-
position 3 (Starting) .
Ignition on position
It allows the use of the vehicle's electric
equipment or portable devices to be charged.
Once the state of charge of the battery drops
to the reser ve level, the system switches to
energy economy mode: the power supply is
cut off automatically to preser ve the remaining
battery charge. Avoid attaching heavy objects to the key
or the remote control, which would weigh
down on its blade in the ignition switch
and could cause a malfunction.
Switching off the engine leads to a loss of
braking assistance.
Starting the engine
With the parking brake applied and the gearbox
in neutral or position N
or P:
F

d
epress the clutch pedal fully (manual
gearbox),
or
F

p
ress the brake pedal firmly (automatic
gearbox),
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 wheel and the key.
In certain cases, you may have to apply
more force to the steering (wheels on full
lock, for example).
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.
In this case, your vehicle will not start; contact
the dealer network as soon as possible.
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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.
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.
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 the dealer network 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
spe ed. 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 poisoning and death!
In very severe wintry conditions
(temperature below -23°C), to guarantee
correct operation and the longevity of
the mechanical elements of your vehicle,
engine and gearbox, the engine must be
left running for 4 minutes before driving
away.
Switching off the engine
F Stop the vehicle.
F
W ith the engine idling, 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 wheel until it locks.
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. F

C
heck that the parking brake is correctly
applied, particularly on sloping ground.
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.
When you leave the vehicle, keep the key
with you and lock the vehicle.
F With a Diesel engine, turn the key to position 2, i
gnition on, to operate the engine
pre-heating system.
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For more information on Energy
economy mode, refer to the
corresponding section.
Key left in
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) .
Starting/Switching off the
engine with Keyless Entry
and Starting
Starting the engine
It is not necessary to place the electronic key in
the reader.
F

P
lace the gear selector lever at P or N for
vehicles with an automatic gearbox, or
neutral for vehicles 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 depress the
clutch pedal 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.
The steering column unlocks and
the engine starts.
Diesel vehicles
Energy economy mode
After switching off the engine (position 1 -
Sto p), 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, etc.
In temperatures below zero, the
engine will not start until the pre-
heater warning lamp has gone off.
If this warning lamp comes on after pressing the " START/STOP " button, press
down on the brake or clutch pedal until the
warning lamp goes off, without pressing
the " START/STOP " button again, until the
engine starts and runs.
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If one of the starting conditions is not
met, a reminder message appears in the
instrument panel screen. In some cases, it
is necessary to operate the steering wheel
while pressing the "START/STOP" button
to help unlock the steering column.
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.
If the electronic key is not detected in the
recognition zone, a message is displayed.
Move the electronic key into the zone so
that the engine can be started.
Switching off the engine
F Stop the vehicle.
F P lace the gear selector lever at P or N for
vehicles with an automatic gearbox, or
neutral for vehicles with a manual gearbox. 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.
If the vehicle is not immobilised, the
engine will not stop.
Never leave your vehicle with the
electronic key still inside.
Switching off the engine leads to a loss of
braking assistance.
Back-up star ting
When the electronic key is in the recognition
zone and after pressing the "START/STOP"
button, if the engine does not start:
F

P
lace the gear selector lever at P or N for
vehicles with an automatic gearbox, or
neutral for vehicles with a manual gearbox.
F

O
pen the front armrest. F

R
aise the mat by its tongue and remove it.
F
P
lace the electronic key on the back-up
reader.
F
P
ress the brake pedal on vehicles with an
automatic gearbox, or fully depress the
clutch pedal with a manual gearbox.
F P ress the "START/STOP"
button.
The engine starts.
Back-up switch off
In the event of an emergency only,
the engine can be switched off
without conditions. To do this, press
and hold the " START/STOP " button
for about three seconds.
In this case the steering column locks as soon
as the vehicle stops.
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Electronic key not recognised
If the electronic key is no longer in the
recognition zone when driving or when you
(later) request switching off the engine, a
message is displayed.F

P
ress and hold the " S TA R T/
STOP " button for about
3
seconds if you want to force
switching off the engine (note
that restar ting will not be
possible without the key).
Ignition on (without starting)
With the "Keyless Entry and Starting" key
inside the vehicle, pressing the " START/STOP"
button, with no action on the pedals , allows
the ignition to be switched on.
F Press the " START/STOP" button,
the instrument panel comes on
but the engine does not start.
F Press the button again to switch off the ignition and allow the
vehicle to be locked.
With the ignition on, the system
automatically goes into energy economy
mode when required to maintain the state
of charge of the battery.
Manual parking brake
Application
F Pull the parking brake lever fully up to immobilise your vehicle.
Releasing
F Pull the parking brake lever up gently, press the release button then lower the lever fully.
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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
on the multifunction screen, this
indicates that the parking brake is still
on or has not been fully released.
When parking on a slope, direct your
wheels towards the kerb, apply the
parking brake, engage a gear and switch
off the ignition.
Electric parking brake
The electric parking brake combines
2 operating modes:
-

A
utomatic application/release
Application is automatic when the engine stops,
release is automatic on use of the accelerator
(activated by default),
-

M
anual application/release
The parking brake can be applied/released
manually by pulling control lever .
If this warning lamp comes on in
the instrument panel, the automatic
mode is deactivated.
Do not place any object (packet of
cigarettes, telephone...) between the gear
lever and the electric parking brake control
l eve r.
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 of the system
is done in the vehicle configuration
menu.
The parking brake is locked and unlocked
manually. When the driver’s door is opened, a
loud beep is heard and a message is displayed
if the parking brake has not been applied. 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.
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Manual application
With the vehicle stationary, to apply the parking
brake regardless of whether the engine is
running or switched off, pull the control lever.
The application of the parking brake is
confirmed by:
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, except in the case
of an automatic gearbox with the gear selector
in position P .
Before leaving the vehicle, ensure
that parking brake warning lamp in the
instrument panel is on fixed, not flashing.
Manual release
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. Full release of the parking brake is confirmed
by:
-
d
isplay of the message "Parking
brake released/off".
If you pull the control lever 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 maximum
application of the parking brake. It is obtained
by means of a long pull on control lever , until
you see the message "Parking brake applied
fully" accompanied by an audible signal.
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 kerb and
engage a gear when you park.
After a maximum application, the release
time will be longer.
Automatic application, engine
off
With the vehicle stationary, the parking brake
is automatically applied when the engine is
switched off
.
The application of the parking brake is
confirmed by:
-

d
isplay of the message "Parking
brake applied/on".
-

i

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

d

isplay of the message "Parking
brake applied". -

t

he braking warning lamp and
the P warning lamp in the
control lever going off,
-
i
llumination of the braking
warning lamp and the P warning
lamp in the control lever ,
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