2011 Citroen C4 steering

8
133
TRAJECTORY CONTROL SYSTEMS

Anti-slip regulation (ASR) and electronic stability programme(ESP)


The anti-slip regulation (also known as
Traction Control) optimises traction to
prevent skidding of the wheels, by act-
ing on the brakes of the driving wheels
and on the engine.
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, within
the limits of the laws of physics.

Activation
These systems are activated automati-
cally 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 in the instru-
ment panel.

(Intelligent Traction Control)

Your vehicle has a system to help driving
on snow: Intelligent Traction Control.
This automatic system continuously
checks for situations of diffi cult surface
adhesion that could make it diffi cult to
move off or make progress on deep
fresh snow or compacted snow.
In these situations, Intelligent Traction
Control
takes over from the ASR
sys-
tem, limiting the amount of wheel slip to
provide the best traction and trajectory
control, even without snow tyres and
with or without chains.
In extremely severe conditions (snow
on top of ice, sand, deep mud…), it can
be useful to deactivate the ESP/ASR

systems to allow a degree of wheel spin
and so recover grip.

Deactivation
In exceptional conditions (starting a ve-
hicle which is bogged down, stuck in
snow, on soft ground...), it may be ad-
visable to deactivate the ASR and ESP
systems, so that the wheels can move
freely and regain grip.


)
Press the "ESP OFF"
button, located
on the left below the steering wheel.

If this warning lamp comes on
in the instrument panel and
the indicator lamp in the button
comes on, this indicates that
the ASR and ESP systems are
deactivated.

8
SAFETY
138
AIRBAGS


System designed to maximise the safety
of the occupants (with the exception of
the rear centre passenger) in the event
of violent collisions. It supplements the
action of the force-limiting seat belts
(with the exception of the rear centre
passenger).
If a collision occurs, the electronic de-
tectors record and analyse the front
and side impacts sustained in the im-
pact detection zones:


- in the case of a serious impact, the
airbags are triggered instantly and
protect the occupants of the vehicle
(with the exception of the rear cen-
tre passenger); immediately after the
impact, the airbags defl ate rapidly so
that they do not hinder visibility or the
exit of the occupants,

- in the case of a minor or rear impact
or in certain roll-over conditions, the
airbags will not be triggered; the
seat belt alone is suffi cient to pro-
vide optimum 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 subse-
quent accident), the airbag will
not be triggered again.

A.
Front impact zone.

B.
Side impact zone.
Impact detection zones
Triggering of the airbag(s) is ac-
companied by a slight emission
of harmless smoke and a noise,
due to the activation of the pyro-
technic cartridge incorporated in
the system.
This smoke is not harmful, but
sensitive individuals may experi-
ence slight irritation.
The noise of the detonation may
result in a slight loss of hearing
for a short time.

Front airbags

System which protects the driver and
front passenger in the event of a seri-
ous front impact in order to limit the risk
of injury to the head and thorax.
The driver's airbag is fi tted in the centre
of the steering wheel; the front passen-
ger's airbag is fi tted in the dashboard
above the glove box.

Deployment
The airbags are deployed simultaneously,
unless the passenger's front airbag is de-
activated, in the event of a serious front
impact to all or part of the front impact
zone A
, in the longitudinal centreline of the
vehicle on a horizontal plane and directed
from the front to the rear of the vehicle.
The front airbag infl ates between the tho-
rax and head of the front occupant of the
vehicle and the steering wheel, driver's
side, and the dashboard, passenger's side
to cushion their forward movement.

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141













For the airbags to be fully
effective, observe the
following safety rules:
Sit in a normal upright position.
Wear a correctly adjusted seat
belt.
Do not leave anything between
the occupants and the airbags
(a child, pet, object...). This could
hamper the operation of the air-
bags or injure the occupants.
After an accident or if the ve-
hicle has been stolen or broken
into, have the airbag systems
checked.
All work on the airbag sys-
tem must be carried out by a
CITROËN dealer or a qualifi ed
workshop.
Even if all of the precautions men-
tioned are observed, a risk of in-
jury or of minor burns to the head,
chest or arms when an airbag is
deployed cannot be ruled out.
The bag infl ates almost instantly
(within a few milliseconds) then
defl ates within the same time dis-
charging the hot gas via openings
provided for this purpose.


Front airbags
Do not drive holding the steering wheel by its spokes or resting your hands on
the centre part of the wheel.
Passengers must not place their feet on the dashboard.
If possible, do not smoke as deployment of the airbags can cause burns or the
risk of injury from a cigarette or pipe.
Never remove or pierce the steering wheel or hit it violently.



Lateral airbags
Use only approved covers on the seats, compatible with the deployment the lateral
airbags. For information on the range of seat covers suitable for your vehicle, you
can contact a CITROËN dealer (see "Practical information - § Accessories").
Do not fi x or attach anything to the seat backs (clothing...). This could cause injury
to the chest or arms if the lateral airbag is deployed.
Do not sit with the upper part of the body any nearer to the door than necessary.

Curtain airbags
Do not fi x or attach anything to the roof. This could cause injury to the head if the
curtain airbag is deployed.
Do not remove the grab handles installed on the roof, they play a part in securing
the curtain airbags.

9
DRIVING
151
6-SPEED ELECTRONICGEARBOX SYSTEM

Six-speed electronic gearbox system
which offers a choice between the com-
fort of fully automatic operation or the
pleasure of manual gear changing.
There are two driving modes:


- automatic
mode for automatic control
of the gears by the gearbox,

- manual
mode for sequential gear
changing by the driver.
In automatic mode, it remains possible
to change gear manually by using the
steering mounted control paddles, when
overtaking, for example.

R.
Reverse


)
With your foot on the brake, lift the
lever and push forwards.

N.
Neutral.


)
With your foot on the brake, select
this position to start.

A.
Automatic mode.


)
Move the lever backwards to select
this mode.

M.
Manual mode with sequential gear
changing.


)

Move the lever backwards then to the
left to select this mode, then use the
steering mounted control paddles to
change gear.



Gear lever


+.
Change up paddle to the right of the
steering wheel.


)
Press the back of the "+"
steering
mounted paddle to change up a
gear.

-.
Change down paddle to the left of the
steering wheel.


)
Press the back of the "-"
steering
mounted paddle to change down a
gear.
Steering mounted control paddles


The steering mounted paddles
cannot be used to select neutral
or to engage or disengage re-
verse gear.

9
DRIVING
153

On sharp acceleration, the gear-
box will not change up unless the
driver acts on the gear lever or
the steering mounted paddles.
Never select neutral N
while the
vehicle is moving.
Only engage reverse gear R

when the vehicle is immobilised
with the brake pedal pressed.



Manual gear changing

This selective gear change mode en-
ables you to overtake, for example, while
still remaining in automatic mode.


)
Operate the +
or -
steering mounted
control paddle.
The gearbox engages the gear request-
ed if the engine speed permits. AUTO
is
still displayed in the instrument panel.
After a few moments without any action
on the controls, the gearbox resumes
automatic control of the gears.
At very low speed, if reverse
gear is requested, this will only
be taken into account when the
vehicle is immobilised. The Foot
on brake
warning lamp may
fl ash in the instrument panel to
prompt you to brake.


Stopping the vehicle

Before switching off the engine, you
can choose to:


- move to position N
to engage neutral,

- leave the gear engaged; in this
case, it will not be possible to move
the vehicle.
In both cases, you must apply the park-
ing brake to immobilise the vehicle.
When immobilising the vehicle,
with the engine running, you
must place the gear lever in neu-
tral N
.
Before carrying out any work in
the engine compartment, check
that the gear lever is in neutral N

and that the parking brake is ap-
plied.

Operating fault

With the ignition on, the fl ashing of
AUTO
, accompanied by an audible sig-
nal and a message in the multifunction
screen, indicates a malfunction of the
gearbox.
Have it checked by a CITROËN dealer
or a qualifi ed workshop.

You must press the brake pedal
when starting the engine.
Whatever the circumstances,
you must manually apply the
parking brake when parking,
unless the parking brake is pro-
grammed in automatic mode.



Manual mode



)
When the vehicle has moved off, se-
lect position M
to change to manual
mode.

AUTO
disappears and the
gears engaged appear in suc-
cession in the instrument panel
screen.
The gear change requests are only car-
ried out if the engine speed permits.
It is not necessary to release the accel-
erator during gear changes.
When braking or slowing down, the
gearbox changes down automatically
to allow the vehicle to accelerate in the
correct gear.

9
DRIVING
158
STOP & START
The Stop & Start system puts the en-
gine temporarily on standby - STOP
mode - during stops in the traffi c (red
lights, traffi c jams, or other...). The en-
gine restarts automatically - START
mode - as soon as you want to move
off. The restart takes place instantly,
quickly and silently.
Perfect 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
The "ECO"
warning lamp comes
on in the instrument panel and the
engine goes into standby:


- with a manual gearbox
, at speeds
below 12 mph (20 km/h), when you
put the gear lever into neutral and
release the clutch pedal, If your vehicle is fi tted with
the system, a time counter
calculates the sum of the pe-
riods in STOP mode during a
journey. It resets itself to zero every time
the ignition is switched on with the key.

- with the 6-speed electronic gear-
box system
, at a speed below
5 mph (8 km/h), when you press the
brake pedal or put the gear lever
into position N
. With the automatic gearbox
system, for your comfort dur-
ing parking maoeuvres, STOP
mode is not available for a few
seconds after coming out of re-
verse gear.
STOP mode does not affect the
functionality of the vehicle, such
as braking, power steering, for
example.
Special cases: STOP mode
unavailable
STOP mode is not invoked when:


- the driver's door is open,

- the driver's seat belt is not fastened,

- the vehicle has not exceeded 6 mph
(10 km/h) since the last engine start
using the key,

- the electric parking brake is applied
or being applied,

- the engine is needed to maintain a
comfortable temperature in the pas-
senger compartment,

- demisting is active,

- some special conditions (battery
charge, engine temperature, brak-
ing assistance, ambient tempera-
ture...) where the engine is needed
to assure control of a system.
In this case, the "ECO"
warning
lamp fl ashes for a few seconds,
then goes off. Never refuel with the engine in
STOP mode; you must switch off
the ignition with the key.

This operation is perfectly normal.

9
DRIVING
165
MEMORISING SPEEDS
This memorisation of speeds applies
to both the speed limiter and the cruise
control.

Operation

You can memorise up to 5 speeds in
the system.
By default, some speeds are already
memorised.
Access
Press the MEM
button to display the list
of memorised speeds.
Selection

To select a memorised speed:


)
press and hold the " +
" or " -
" but-
ton; the system stops at the nearest
memorised speed,

)
press and hold again the " +
" or " -
"
button to select another memorised
speed.
A reminder of the speed and the state
of the system (on/off) is displayed in the
instrument panel.


)
Select "Vehicle parameters" menu
and confi rm.

)
Select the "Driving assistance" line
and conform.

)
Select "Speeds memorised" line
and confi rm.

)
Modify the speed.

)
Select " OK
" and confi rm to save the
modifi cations.
For safety reasons, when using
the monochrome screen C the
driver must only carry out these
operations when stationary.
These operations are only possi-
ble when stationary, when using
the central colour screen associ-
ated with the satellite navigation
system.

- on the central colour screen asso-
ciated with the satellite navigation
system; press the thumb wheel
on the left of the steering column.

)
Go to the main menu:


-
on the monochrome screen C; press
the "MENU"
button, then select
the "Personalisation-confi guration"
menu and confi rm.

9
DRIVING
166
The programmed information is grouped
together in the instrument panel screen.

6.
Speed limiter on,off indication.

7.

Speed limiter mode selection indication.


8.
Programmed speed value.

9.
Selection of a memorised speed.
(see "Memorising speeds")
SPEED LIMITER

System which prevents the vehicle
from exceeding the speed programmed
by the driver.
When the programmed speed limit is
reached, pressing the accelerator pedal
no longer has any effect.
The speed limiter cannot, in any
circumstances, replace the need
to respect speed limits, nor can
it replace the need for vigilance
and responsibility on the part of
the driver. The functions of this system are grouped
together on the steering mounted con-
trols.


1.
Speed limiter mode selection dial.

2.
Programmed value decrease button.

3.
Programmed value increase button.

4.
Speed limiter on,off button.

5.
List of memorised speeds display
button.
(see "Memorising speeds")



Steering mounted controls

Operation

The speed limiter is switched on
man-
ually: it requires a programmed speed
of at least 20 mph (30 km/h).
The speed limiter is switched off
by
manual operation of the control.
The programmed speed can be ex-
ceeded temporarily by pressing the
accelerator fi rmly beyond the point of
resistance.
To return to the programmed speed,
simply release the accelerator pedal.
The programmed speed remains in the
memory when the ignition is switched
off.