2015.5 Citroen DS5 HYBRID4 brakes

99
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

F With your foot on the brake, select position P or n.
F

S
tart the engine.
If this procedure is not followed, an audible
signal is heard, accompanied by a message in
the instrument panel screen.
F

W
ith the engine running, press the brake
pedal.
F

Sel
ect position R ,
d or M.
Moving off
When the engine is running at idle,
with the brakes released, if position R ,
d

or M is selected, the vehicle moves
even without the accelerator being
pressed.
Never leave children unsupervised in
the vehicle when the engine is running.
When carrying out maintenance with
the engine running, apply the parking
brake and select position P .
If the parking brake does not release
automatically, check that the front doors
are fully closed.
Never select position n while the
vehicle is moving.
Never select positions P or R unless the
vehicle is completely stationary.
Automatic operation
F Select position d for automatic changing
of the six gears.
The gearbox then operates in auto-adaptive
mode, without any intervention on the part
of the driver. It continuously selects the most
suitable gear according to the style of driving,
the profile of the road and the load in the
vehicle.
For maximum acceleration without touching
the selector, press the accelerator pedal down
fully (kick down). The gearbox changes down
automatically or maintains the gear selected
until the maximum engine speed is reached.
On braking, the gearbox changes down
automatically to provide effective engine
braking.
If you release the accelerator sharply, the
gearbox will not change to a higher gear for
safety reasons.
If position
n
is engaged inadvertently
while driving, allow the engine to
return to idle then engage position
d

to

accelerate.
If you do not press the brake pedal
when trying to move the gear selector
out of position P
, this warning lamp or
this symbol appears in the instrument
panel accompanied by a message,
flashing of the P symbol, the display
of a message and an audible signal.
F

C

heck that the display in the instrument
panel agrees with the position engaged.
F

G

radually release the brake pedal.
The parking brake is released manually, the
vehicle moves off.
If the parking brake is on and automatic mode
is activated, accelerate progressively.

A set of the following Electronic Stability
systems:
-
a
nti-lock braking system (ABS) and
electronic brake force distribution (EBFD),
-
em

ergency braking assistance,
-

w
heel anti-slip regulation (ASR) or traction
control,
-

d
ynamic stability control (DSC).
Electronic stability control (ESC)
definitions
Anti-lock braking system (ABS)
and electronic brake force
distribution (EBF
d)
These systems improve the stability and
manoeuvrability of your vehicle when braking
and contribute towards improved control in
corners, in particular on poor or slippery road
surfaces.
The ABS prevents wheel lock in the event of
emergency braking.
The electronic brake force distribution system
manages the braking pressure wheel by wheel.
Emergency braking
assistance
In an emergency, this system enables you to
reach the optimum braking pressure more
quickly and therefore reduce the stopping
distance.
It is triggered in relation to the speed at which
the brake pedal is pressed. This is felt by a
reduction in the resistance of the pedal and an
increase in the effectiveness of the braking.
Anti-slip regulation (ASR)
This system (also known as Traction Control)
optimises traction in order to avoid wheel
slip by acting on the brakes of the driving
wheels and on the engine. It also improves
the directional stability of the vehicle on
acceleration.
dynamic stability control
(dSc)
If there is a difference between the path
followed by the vehicle and that required by the
driver, this system monitors each wheel and
automatically acts on the brake of one or more
wheels and on the engine to return the vehicle
to the required path, within the limits of the laws
of physics.

dynamic stability control (dSc)
a nd anti-slip regulation
(ASR)
Activation
These systems are activated automatically
each time the vehicle is started.
As soon as they detect a problem of grip or
trajectory, these systems act on the operation if
the engine and brakes.
This is indicated by flashing of this
warning lamp in the instrument panel.
deactivation
Operating fault
Illumination of this warning lamp and
the lamp in the deactivation button,
accompanied by an audible signal
and a message, indicate a fault with
the system.
Reactivation
F Press this button.
The indicator lamp in the button
comes on.
The DSC and ASR systems no longer act
on the operation of the engine and on the
brakes in the event of a involuntary change of
trajectory. F

P
ress this button again.
The indicator lamp in the button
goes off.
Reactivate the systems as soon as the level of
grip permits.
Contact a CITROËN dealer or a qualified
workshop to have the system checked.
In exceptional conditions (starting a vehicle
which is bogged down, stuck in snow, on soft
ground...), it may be advisable to deactivate
the DSC and ASR, so that the wheels can turn
freely and regain grip.
The systems are reactivated automatically each
time the ignition is switched back on or from
30 mph (50 km/h).
Below 30 mph (50 km/h), you can reactivate
them manually:

Brake wear depends on the style
of driving, particularly in the case
of vehicles 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 fluid level indicates that the brake
pads are worn.
Brake pads
For information on checking brake
disc wear, contact a CITROËN dealer
or a qualified workshop.
Brake disc wear Electric parking brake
This system does not require any
routine servicing. However, in the
event of a problem, have the system
checked by a CITROËN dealer or a
qualified workshop.
Only use products recommended by
CITROËN or products of equivalent
quality and specification.
In order to optimise the operation of
units as important as those in the
braking system, CITROËN selects and
offers very specific products.
After washing the vehicle, dampness,
or in wintry conditions, ice can form
on the brake discs and pads: braking
efficiency may be reduced. Make light
brake applications to dry and defrost
the brakes.
For more information on the electric parking
brake, refer to the corresponding section.
Manual gearbox
The gearbox does not require any
maintenance (no oil change).
Refer to the manufacturer's service
schedule for the checking interval for
this component.
Automatic gearbox
The gearbox does not require any
maintenance (no oil change).
Refer to the manufacturer's service
schedule for details of the level
checking interval for this component.