ignition Citroen C4 2010 2.G Service Manual

102
VIII
S A F E T Y
AIRBAGS

System designed to maximise the
safety of the occupants (with the
exception of the rear centre pas-
senger) in the event of violent col-
lisions. It supplements the action of
the force-limiting seat belts.
If a collision occurs, the electronic
detectors record and analyse the
front and side impacts sustained in
the impact detection zones:
- in the case of a serious impact,
the airbags are triggered instant-
ly and protect the occupants of
the vehicle (with the exception of
the rear centre passenger); im-
mediately 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 provide optimum
protection in these situations.
The airbags do not operate when
the ignition is switched off.
This equipment will only operate
once. If a second impact occurs
(during the same or a subsequent
accident), the airbag will not operate.
Impact detection zones

A. Front impact zone.

B. Side impact zone.
Triggering of the airbag(s) is ac-
companied by a slight emission of
harmless smoke and a noise, due to
the activation of the pyrotechnic car-
tridge incorporated in the system.
This smoke is not harmful, but sen-
sitive individuals may experience
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 head and
chest of the driver and front passenger
in the event of a front impact.
The driver's airbag is incorporated
in the centre of the steering wheel;
the front passenger's airbag is incor-
porated in the dashboard above the
glove box.
Activation
The airbags are triggered simultane-
ously, unless the passenger's front
airbag is deactivated, in the event of
a serious front impact applied to all
or part of the front impact zone
A ,
in the longitudinal centreline of the
vehicle on a horizontal plane and di-
rected from the front to the rear of
the vehicle.
The front airbag infl ates between the
front occupant of the vehicle and the
dashboard to cushion their forward
movement.

103
VIII
S A F E T Y
Deactivation
This warning lamp comes on
on the instrument panel when
the ignition is on and until the
airbag is reactivated.
To ensure the safety of your child,
it is imperative that the passenger
airbag is deactivated when you in-
stall a "rearwards-facing" child seat
on the front passenger seat.
Otherwise, the child would risk be-
ing seriously injured or killed if the
airbag were triggered. Activation
When you remove the child seat,
turn switch
1 to the "ON" position to
reactivate the airbag and so ensure
the safety of your front passenger in
the event of an impact.
Operating fault
If this warning lamp comes
on on the instrument panel,
accompanied by an audible
warning and a message on
the multifunction screen, contact a
CITROËN dealer to have the sys-
tem checked. The airbags may no
longer be triggered in the event of a
serious impact.
Only the front passenger's airbag
can be deactivated:

 with the ignition off , insert the
key in the passenger airbag de-
activation switch 1 ,

 turn it to the "OFF" position,

 then, remove the key keeping
the switch in this position. If this warning lamp fl ashes,
contact a CITROËN dealer.
If both airbag warning lamps come
on continuously, do not install a
"rearwards-facing" child seat on
the front passenger seat.
Have it checked by a CITROËN
dealer.

108
IX
D R I V I N G
Displays on the instrument panel
- The selector position is displayed in the instrument panel, on the left
on multifunction screens A and C
and on the right on the NaviDrive
multifunction screen.
- A back-lit position grille associ- ated with the selector shows the
position selected. Moving off

When the ignition is on, lighting of
the service warning lamp, accom-
panied by an audible signal and
the message "Gearbox faulty" in-
dicates a malfunction.
Consult a CITROËN dealer.
For safety:

 Position N can only be disen-
gaged if you are pressing the
brake pedal.

 If the gearbox is in position N
but the selector position is diffe-
rent, reposition the selector on N
in order to be able to start.
 To start the engine, the selector
must be in position N .

 Press fi rmly on the brake pedal.

 Operate the starter.

 When the engine is running,
place the selector on R , A or M
as desired.

 Check, in the instrument panel,
the position engaged.

 Release the brake pedal and
accelerate.
If the selector is not in position N ,
and/or if the brake pedal is not
pressed, the corresponding warning
lamp(s) are displayed and a mes-
sage informs you that at least one of
these two conditions is not met.
In this case, the engine will not start,
recommence the above procedure.
Engaging reverse gear
To engage reverse gear, move the
selector to R .

Only attempt to select reverse gear
when the vehicle is stationary.
If the vehicle is moving rapidly, if an in-
advertent attempt to engage reverse
gear is made, the warning lamp N will
fl ash and your vehicle will go auto-
matically into neutral. To re-engage a
gear, you have only to reposition the
selector on A , M or R .
Reverse gear

114
IX
D R I V I N G

 Press the brake pedal.

 Operate the starter.

 When the engine is running,
place the selector on R , D or M
as required.

 Check, in the instrument panel,
the position engaged.

 Gradually release the brake pedal
and accelerate.

 To avoid a difference between
the position of the selector and
the actual position of the gear-
box, only exit from position P
with the ignition on and the brake
pedal pressed.
Park Reverse gear
This position of the selector is used
to prevent the vehicle from moving
when you are stationary.

 To select position P , move the
selector back to the highest po-
sition (towards R ), then push it
forwards and then to the left. Only engage this position when
the vehicle is stationary. To prevent
snatching, do not accelerate too
soon after selection.
Neutral
Never select position N if the vehicle
is moving.
Never select positions P or

R if the vehicle is not sta-
tionary.
If, while the vehicle is moving, po-
sition N is engaged inadvertently,
allow the engine to idle before en-
gaging position D or M .
Otherwise, when the ignition is on or
the engine is running:


reposition the selector in position P ,

 put your foot on the brake pedal
and then select the gear you want. Automatic operation

 Move the selector to position D .
The gearbox constantly selects the gear that is best suited to the
following conditions:
- driving style,
- road profi le,
- vehicle load.
The gearbox is then operating in

auto-adaptive mode, without re-
quiring any action on your part.
For certain manoeuvres (for exam-
ple overtaking), you can obtain ma-
ximum acceleration by pressing the
accelerator pedal down hard, which
then produces an automatic change
down to a lower gear.
When braking, the gearbox may
change down automatically in order
to provide effective engine braking.
If you lift your foot off the accelerator
abruptly, the gearbox will not change up.

 To exit position P , move the se-
lector to the right and then to the
position you want.

 Only engage this position when
the vehicle is completely sta-
tionary. In this position, the front
wheels are locked. Make sure
that the selector is correctly po-
sitioned.

120
IX
D R I V I N G
LANE DEPARTURE WARNING SYSTEM
System which detects the involun-
tary crossing of longitudinal traffi c
lane markings on the ground (solid
or broken line).
Sensors, fi tted below the front bum-
per, trigger a warning if the vehicle
drifts over a lane marking (speed
higher than 50 mph (80 km/h)).
This system is particularly useful on
motorways and main roads. Activation

 Press button A , the indicator
lamp comes on.
Deactivation

 Press button A again, the indicator
lamp switches off.
The status of the system remains
in the memory when the ignition is
switched off.
Detection
You are warned by the vibration of
the driver's seat cushion:
- on the right-hand side, if the marking on the ground has been
crossed on the right,
- on the left-hand side, if the mark- ing on the ground has been
crossed on the left.
No warning is transmitted while the
direction indicator is active and for
approximately 20 seconds after the
direction indicator is switched off.
A warning may be transmitted if a
direction marking (e.g. arrow) or
non-standard marking (e.g. graffi ti)
is crossed. Operating fault
In the event of a malfunction, the
service warning lamp comes on, ac-
companied by an audible signal and a
message on the multifunction screen.
Consult a CITROËN dealer.
The lane departure warning sys-
tem cannot, in any circumstances,
replace the need for vigilance and
responsibility on the part of the
driver. The detection may be impeded:
- if the sensors are dirty (mud,
snow...),
- if the markings on the ground are worn,
- if there is little contrast between the markings on the ground and
the road surface.

129
X
C H E C K S
CHECKING LEVELS
Check all of these levels regularly
and top them up if necessary, unless
otherwise indicated.
If a level drops signifi cantly, have the
corresponding system checked by a
CITROËN dealer.
Take care when working under the
bonnet, as some parts of the engine
can be extremely hot (risk of burns).
Oil level
Oil change
Refer to the Maintenance and
Warranty Guide for details of the in-
terval for this operation. Oil specifi cation
The oil must correspond to your engine
and conform to the manufacturer's
recommendations.
Brake fluid level
Fluid change
Refer to the Maintenance and
Warranty Guide for details of the in-
terval for this operation.
This fl uid must be changed regu-
larly. Fluid which has been used for
too long may cause a loss of braking
effi ciency.
Fluid specifi cation
The brake fl uid must conform to the
manufacturer's recommendations
and fulfi l the DOT4 standards.
Coolant level
Coolant change
The coolant does not have to be
changed.
Fluid specifi cation
The coolant must conform to the
manufacturer's recommendations.
The reading will only be
correct if the vehicle is on
level ground and the engine
has been off for more than
15 minutes.
The check is carried out either when
the ignition is switched on using the
oil level indicator on the instrument
panel, or using the dipstick.
Check this level also between each
scheduled service and before long
journeys. The brake fl uid level should
be close to the "MAX" mark.
If it is not, check the brake
pad wear.
The coolant level should be
close to the "MAX" mark but
should never exceed it.
When the engine is warm, the tem-
perature of the coolant is regulated
by the fan. This can operate with the
ignition off.

On vehicles which are fi tted with
a particle emission fi lter, the fan
may operate after the vehicle has
been switched off, even if the en-
gine is cold.
In addition, as the cooling system is
pressurised, wait at least one hour
after switching off the engine before
carrying out any work.
To avoid any risk of scalding, un-
screw the cap by two turns to al-
low the pressure to drop. When the
pressure has dropped, remove the
cap and top up the level.
In order to maintain the re-
liability of the engine and
emission control system,
the use of additives in the engine
oil is prohibited.

135
XI
P R A C T I C A L I N F O R M A T I O N
Removing a wheel
List of operations

 Park the vehicle on stable, fi rm
ground. Apply the parking brake.
Switch off the ignition and en- gage fi rst gear or reverse gear,
depending on the slope (for ve-
hicles with automatic gearbox,
select position P).

 Detach the embellisher using the
wheelbrace 1 by pulling close to
the valve.
For vehicles with aluminium wheels, slide the embellisher re-
moval tool 3 into the slot in the
central embellisher and apply
fi rm leverage to detach.
 Slacken the wheel bolts using
the wheelbrace 1 .
For vehicles fi tted with security wheel bolts, slacken the security
bolts using the socket 4 fi tted on
the wheelbrace 1 .

 Position the jack 2 under the
bodyshell, exactly as in the illus-
tration at the mark A , closest to
the wheel that is to be replaced.

 Operate the jack 2 until its base
is in contact with the ground.
Make sure that the base of the
jack is vertically below the jack-
ing point used.

 Raise the vehicle.

 Remove the bolts and disengage
the wheel. List of operations

 Position the wheel on the hub.

 Do up the 3 bolts by hand.
Position the 4th bolt.

 Pretighten the bolts using the
wheelbrace 1 . For vehicles fi tted
with security wheel bolts, pretighten
the security bolt using the socket 4
fi tted on the wheelbrace 1 .


Retract the jack 2 and disengage it.

 Tighten the wheel bolts using the
wheelbrace 1 and the security
bolts using the socket 4 .

 Reposition the embellisher, com-
mencing by placing the slot at
the valve, pressing it home with
the palm of your hand.
For vehicles fi tted with aluminium wheels, reclip the central embel-
lisher in place.

 Stow the tools and the wheel in
the boot.

 Check the tyre pressure and
also have the wheel balancing
checked.
Fitting a wheel

154
XI
P R A C T I C A L I N F O R M A T I O N
ENERGY ECONOMY MODE
System which manages the duration
of use of certain functions to con-
serve a suffi cient level of charge in
the battery.
After the engine has stopped, you
can still use functions such as the
audio and telematics system, wind-
screen wipers, dipped beam head-
lamps, courtesy lamps, etc. for a
maximum combined duration of thir-
ty minutes. Switching to economy mode
Once the thirty minutes are over, a
message appears on the multi-function
screen indicating that the vehicle has
switched to economy mode and the
active functions are put on standby.
Exiting economy mode
These functions are reactivated au-
tomatically next time the vehicle is
driven.
In order to resume the use of these
functions immediately, start the en-
gine and let it run:
- for less than ten minutes to use
the equipment for an equivalent
duration,
- for more than ten minutes to use the equipment for approximately
thirty minutes.
A fl at battery prevents the en-
gine from starting (refer to the
corresponding paragraph).
Following reconnection of the
battery
Following reconnection of the bat-
tery, switch on the ignition and wait
1 minute before starting to permit
initialisation of the electronic sys-
tems. However, if problems are en-
countered following this operation,
contact a CITROËN dealer.
Referring to the corresponding sec-
tion, you must yourself reinitialise
(depending on equipment):
- the remote control key,
- the one-touch electric windows,
- the settings of the multifunction
screen,
- the audio equipment radio sta- tions,
- the GPS satellite navigation system.
Do not disconnect the ter-
minals while the engine is
running.
Do not charge the batteries without
disconnecting the terminals fi rst.
Do not push the vehicle to start the
engine if it is fi tted with a 6-speed
electronic gearbox system.
Before disconnecting the
battery
Wait 2 minutes after switching off
the ignition before disconnecting
the battery.
Close the windows and the doors
before disconnecting the battery.

154
XI
P R A C T I C A L I N F O R M A T I O N
ENERGY ECONOMY MODE
System which manages the duration
of use of certain functions to con-
serve a suffi cient level of charge in
the battery.
After the engine has stopped, you
can still use functions such as the
audio and telematics system, wind-
screen wipers, dipped beam head-
lamps, courtesy lamps, etc. for a
maximum combined duration of thir-
ty minutes. Switching to economy mode
Once the thirty minutes are over, a
message appears on the multi-function
screen indicating that the vehicle has
switched to economy mode and the
active functions are put on standby.
Exiting economy mode
These functions are reactivated au-
tomatically next time the vehicle is
driven.
In order to resume the use of these
functions immediately, start the en-
gine and let it run:
- for less than ten minutes to use
the equipment for an equivalent
duration,
- for more than ten minutes to use the equipment for approximately
thirty minutes.
A fl at battery prevents the en-
gine from starting (refer to the
corresponding paragraph).
Following reconnection of the
battery
Following reconnection of the bat-
tery, switch on the ignition and wait
1 minute before starting to permit
initialisation of the electronic sys-
tems. However, if problems are en-
countered following this operation,
contact a CITROËN dealer.
Referring to the corresponding sec-
tion, you must yourself reinitialise
(depending on equipment):
- the remote control key,
- the one-touch electric windows,
- the settings of the multifunction
screen,
- the audio equipment radio sta- tions,
- the GPS satellite navigation system.
Do not disconnect the ter-
minals while the engine is
running.
Do not charge the batteries without
disconnecting the terminals fi rst.
Do not push the vehicle to start the
engine if it is fi tted with a 6-speed
electronic gearbox system.
Before disconnecting the
battery
Wait 2 minutes after switching off
the ignition before disconnecting
the battery.
Close the windows and the doors
before disconnecting the battery.