ignition Citroen C4 2012 2.G Workshop Manual

8
SAFETY
143
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.

8
SAFETY
144

Deactivation
Only the passenger's front airbag can
be deactivated:


)
insert the key in the passenger air-
bag deactivation switch,

)
turn it to the "OFF"
position,

)
then, remove the key keeping the
switch in the new position.
According to version, this warn-
ing lamp comes on in the in-
strument panel and/or in the
seat belt and passenger's front
airbag warning lamps display when the
ignition is on and until the airbag is re-
activated. To assure the safety of your child,
the passenger's front airbag
must be deactivated when you
install a "rear facing" child seat
on the front passenger seat.
Otherwise, the child would risk
being seriously injured or killed if
the airbag were deployed.

Reactivation
When you remove the child seat, turn
the switch to the "ON"
position to re-
activate the airbag and so assure the
safety of your front passenger in the
event of an impact.
With the ignition on, this warn-
ing lamp comes on in the seat
belt and passenger's front air-
bag warning lamps display for
approximately one minute, if the pas-
senger's front airbag is activated.
Operating fault
If this warning lamp comes on
in the instrument panel, accom-
panied by an audible warning
and the display of a message,
contact a CITROËN dealer or a qualifi ed
workshop to have the system checked.
The airbags may no longer be deployed
in the event of a serious impact.
If this warning lamp fl ashes in
the instrument panel and/or in
the seat belt and passenger's
front airbag warning lamps dis-
play, contact a CITROËN dealer or a
qualifi ed workshop. The passenger's
front airbag may no longer be deployed
in the event of a serious impact.
If even one of the two airbag
warning lamps comes on contin-
uously, do not install a child seat
on the front passenger seat.
Have the system checked by a
CITROËN dealer or a qualifi ed
workshop.

9
DRIVING
148

Manual release

With the ignition on or the engine run-
ning, to release the parking brake,
press
on the brake
pedal
or the accel-
erator, pull then release
control A
.
The full application of the parking brake
is confi rmed by:


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

- display of the message
"Handbrake off".
If you pull control lever A
with-
out 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 maxi-
mum application
of the parking brake.
This is obtained by means of a long
pull
on the control lever A
, until you
see the message "Handbrake on maxi-
mum" and a beep is heard.

Maximum application is essential:



- in the case of a vehicle towing a
caravan or a trailer, if the automatic
functions are activated but you are
applying the parking brake manu-
ally,

- when 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 maxi-
mum 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 re-
lease 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
confi rmed by:


-
illumination of the braking warn-
ing lamp and of the P
warning
lamp in the control lever A
,


- display of the message
"Handbrake on".

Before leaving the vehicle, en-
sure that parking brake warning
lamp in the instrument panel is
on fi xed (not fl ashing).
Never leave a child alone inside
the vehicle with the ignition on,
as they could release the park-
ing brake.

In the case of towing, a loaded
vehicle or parking on a gradient,
turn the front wheels towards the
pavement and engage a gear
when you park.

9
DRIVING
149

Automatic release

The electric parking brake releases au-
tomatically and progressively
when
you press the accelerator:


)
Manual gearbox:
press down fully
on the clutch pedal, engage fi rst
gear or reverse, press on the accel-
erator pedal and move off.

)
6-speed electronic gearbox sys-
tem
: select position A
, M
or R
then
press on the accelerator pedal.

)
Automatic gearbox
: select posi-
tion D
, M
or R
then press the accelera-tor pedal.
Full release of the parking brake is con-
fi rmed by:


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

- display of the message
"Handbrake off".

When stationary, with the engine
running, do not press the ac-
celerator pedal unnecessarily,
as you may release the parking
brake.



Immobilising the vehicle,
engine running
With the engine running and the vehicle
stationary, in order to immobilise the
vehicle it is essential to manually
ap-
ply the parking brake by pulling
control
lever A
.
The application of the parking brake is
confi rmed by:


-
illumination of the braking
warning lamp and the P
warn-
ing lamp in the control lever A
,


- display of the message
"Handbrake on".

Before leaving the vehicle, en-
sure that parking brake warning
lamp in the instrument panel is
on fi xed, not fl ashing.



Particular situations


In certain situations (e.g. starting the
engine), the parking brake can auto-
matically alter its force. This is normal
operation.
To advance your vehicle a few centime-
tres without starting the engine, but with
the ignition on, press on the brake pedal
and release the parking brake by pulling

then releasing
the control lever A
. The
full release of the parking brake is con-
fi rmed by the warning lamps in the con-
trol lever A
and in the instrument panel
going off and display of the message
"Handbrake off".
If the parking brake develops a fault
while applied
or if the battery runs fl at,
an emergency release is always pos-
sible.

When the driver’s door is opened, 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 lever in position P
.

9
DRIVING
150

Emergency braking


In the event of failure of the elec-
tronic stability control system,
signalled by the illumination of
this warning lamp, braking sta-
bility is then not guaranteed.
In this event, stability must be assured
by the driver by repeating alternate
"pull-release" actions on the control
lever A
.
In the event of a failure of the main
service brake or in an exceptional
situation (e.g. driver taken ill, under
instruction, etc) a continuous pull on
the control lever A
will stop the vehicle.
The electronic stability control provides
stability during emergency braking.
If the emergency braking malfunctions,
the message "Parking brake faulty" will
be displayed.
The emergency braking must
only be used in exceptional cir-
cumstances.










Emergency release

In the event of the electric parking brake
malfunctioning or the battery running
fl at, an emergency manual device can
release the parking brake.


)
Immobilise the vehicle (or keep
it stationary, if the brake pedal is
pressed), with the engine running,
by engaging fi rst gear (manual gear-
box), position P
(automatic gear-
box) or position M
or R
(6-speed
electronic gearbox system).

)
Switch off the engine but leave the
ignition on. If it is not possible to im-
mobilise the vehicle, do not operate
the control and contact a CITROËN
dealer or a qualifi ed workshop with-
out delay.

)
Fetch the two vehicle blocks B
and
the release device C
, located under
the boot carpet.

9
DRIVING
153


Situations



Consequences




To apply the electric parking brake:


)
immobilise the vehicle and switch off the ignition.

)
pull the control for at least 5 seconds or until application
is complete.

)
switch on the ignition and check the switching on of the
electric parking brake warning lamps.
The application is slower than during normal operation.
To release the electric parking brake:


)
switch on the ignition.

)
pull the control and hold it for approximately 3 seconds
then release it.
If the braking warning lamp is fl ashing or if the warning
lamps do not come on with the ignition on, these procedures
will not work. Place the vehicle on level ground and have it
checked by a CITROËN dealer or a qualifi ed workshop. and possibly



fl ashing
Display of the message " Parking brake fault
" and of the
following warning lamps:




- Only the automatic application on switching off the en-
gine and automatic release on acceleration functions are
available.

- The manual application/release of the electric parking
brake and the emergency braking are not available.



and possibly



fl ashing
Battery fault:

- If the battery warning lamp comes on you must stop imme-
diately as soon as the traffi c allows. Stop and immobilise
your vehicle (if necessary, place the two chocks under the
wheels).

- Apply the electric parking brake before switching off the
engine.

9
DRIVING
158

You can change mode at any
time by moving the gear lever
from A
to M
or the other way
round.

At very low speed, if reverse gear is re-
quested, this will only be acted on when
the vehicle is immobilised. The Foot on
brake
warning lamp may come on in
the instrument panel to prompt you to
brake.
At high speed, if reverse gear is re-
quested, the N
indicator fl ashes and the
gearbox goes into neutral. To engage a
gear again, put the gear lever in posi-
tion A
or M
.

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, ensure
that the gear lever is in neutral N

and that the parking brake is ap-
plied.
Whatever the circumstances,
you must manually apply the
parking brake when parking,
unless the parking brake is pro-
grammed in automatic mode.



Reverse

To engage reverse gear R
, the vehicle
must be immobilised with your foot on
the brake pedal.


)
Select position R
.


Operating fault

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


Manual mode



)
Select position M
.
The gears engaged appear in
succession in the instrument
panel screen.
The gear change requests are only act-
ed on 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.
On sharp acceleration, the gearbox will
not change up unless the driver acts on
the gear lever or the steering mounted
paddles.
Temporary control of gear changing
You can temporarily take over control
of gear changing using the "+"
and "-"

steering mounted paddles: if the engine
speed allows, the request to change
gear is acted on.
This function allows you to anticipate
certain situations such as overtaking a
vehicle or the approach to a corner.
After a few moments without any action
on the control paddles, the gearbox re-
sumes automatic control of the gears.

Never select neutral N
while the
vehicle is moving.
In both cases, you must apply the
parking brake
to immobilise the
vehicle. When immobilising the vehicle,
with the engine running, you must place
the gear lever in neutral

Stopping the vehicle

Before switching off the engine, you
can:


- move to position N
to engage neutral,
or

- leave the gear engaged; in this
case, it will not be possible to move
the vehicle.

9
DRIVING
161

Manual operation



)
Select position M
for sequential

changing of the six gears.

)
Push the lever towards the +
sign to
change up a gear.

)
Pull the lever towards the -
sign to
change down a gear.
It is only possible to change from one
gear to another if the vehicle speed and
engine speed permit; otherwise, the
gearbox will operate temporarily in au-
tomatic mode.

D
disappears and the gears
engaged appear in succes-
sion in the instrument panel.
If the engine speed is too low
or too high, the gear selected
fl ashes for a few seconds, then the ac-
tual gear engaged is displayed.
It is possible to change from position D

(automatic) to position M
(manual) at
any time.
When the vehicle is stationary or mov-
ing very slowly, the gearbox selects
gear M1
automatically.
The sport and snow programmes do
not operate in manual mode.
Invalid value during manual
operation
This symbol is displayed if a
gear is not engaged correctly
(selector between two posi-
tions).



Stopping the vehicle

Before switching off the engine, you
can engage position P
or N
to place the
gearbox in neutral.
In both cases, apply the parking brake
to immobilise the vehicle, unless it is
programmed to automatic mode.

If the lever is not in position P
,
when the driver's door is opened
or approximately 45 seconds af-
ter the ignition is switched off,
there is an audible signal and a
message appears.


)
Return the lever to position P
;
the audible signal stops and
the message disappears.


You risk damaging the gearbox:


- if you press the accelera-
tor and brake pedals at the
same time,

- if you force the lever from po-
sition P
to another position
when the battery is fl at. When the ignition is on, the
lighting of this warning lamp,
accompanied by an audible
signal and a message in the multifunc-
tion screen, indicates a gearbox mal-
function.
In this case, the gearbox switches to
back-up mode and is locked in 3rd gear.
You may feel a substantial knock when
changing from P
to R
and from N
to R
.
This will not cause any damage to the
gearbox.
Do not exceed 60 mph (100 km/h), lo-
cal speed restrictions permitting.
Have it checked by a CITROËN dealer
or a qualifi ed workshop.
This warning lamp may also come on if
a door is opened.

Operating fault

To reduce fuel consumption
when stationary for long periods
with the engine running (traffi c
jam...), position the gear lever
at N
and apply the parking brake,
unless it is programmed in auto-
matic mode.

9
DRIVING
163











STOP & START

The Stop & Start system puts the en-
gine temporarily into 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 automatically:


- 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
periods in STOP mode dur-
ing a journey. It resets itself to zero ev-
ery 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 electronic 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 fas-
tened,

- 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

Maintenance

In the event of a malfunction with the
system, the "ECO OFF"
switch warn-
ing lamp fl ashes, then comes on con-
tinuously.
have it checked by a CITROËN dealer
or a qualifi ed workshop.


Operating fault

Before doing anything under the
bonnet, deactivate the Stop &
Start system to avoid any risk of
injury resulting from automatic
operation of START mode.
This system requires a specifi c battery
with a special specifi cation and technol-
ogy (reference numbers available from
a CITROËN dealer or a qualifi ed work-
shop).
Fitting a battery not listed by
CITROËN introduces the risk of mal-
function of the system.
The Stop & Start system makes
use of advanced technology. All
work on this type of battery must
be done only by a CITROËN
dealer or a qualifi ed workshop.
In the event of a fault in STOP
mode, the vehicle may stall. All
of the instrument panel warning
lamps come on.
Depending on version, an alert
message may also be displayed
asking you to put the gear lever
into position N
and put your foot
on the brake pedal.
It is then necessary to switch off
the ignition, then restart the en-
gine using the key.