2012 Citroen C4 stop start

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
164

Deactivation

Going into engine START mode
At any time, press the "ECO OFF"

switch to deactivate the system.
This is confi rmed by the switch warning
lamp coming on accompanied by the
display of a message.
Special cases: START invoked
automatically
If the system has been deacti-
vated in STOP mode, the engine
restarts immediately. The "ECO"
warning lamp goes
off and the engine starts auto-
matically:


- with a manual gearbox
, when you
fully
depress the clutch pedal,

- with the 6-speed electronic gear-
box system
:


●
gear lever in position A
or M
, when
you release the brake pedal,

●
or gear lever in position N
and the
brake pedal released, when you
move the gear lever to position A

or M
,

●
or when you engage reverse gear.

For safety reasons or to ensure smooth
operation, START mode is invoked au-
tomatically when:


- you open the driver's door,

- you unfasten the driver's seat belt,

- the speed of the vehicle exceeds
15 mph (25 km/h) with a manual
gearbox or 7 mph (11 km/h) with the
6-speed electronic gearbox system,

- the electric parking brake is being
applied,

- 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 few seconds,
then goes off.
With a manual gearbox in STOP
mode, if a gear is engaged with-
out fully depressing the clutch
pedal, a warning lamp comes
on or an alert message is dis-
played asking you to depress
the clutch pedal to restart the
engine.



Reactivation

Press the "ECO OFF"
switch again.
The system is active again; this is con-
fi rmed by the switch warning lamp going
off and the display of a message.
The system is reactivated auto-
matically at every new start using
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.

10
CHECKS
180











BONNET


)
Push the exterior safety catch B
to
the left and raise the bonnet.

Opening



)
Open the front left door.

)
Pull the interior bonnet release le-
ver A
, located at the bottom of the
door aperture.

)
Unclip the stay C
from its housing
on the back of the bonnet.

)
Fix the stay in the notch to hold the
bonnet open.
The location of the interior bonnet
release lever prevents opening of
the bonnet while the front left door
is closed.


Closing



)
Take the stay out of the support
notch.

)
Clip the stay in its housing on the
back of the bonnet.

)
Lower the bonnet and release it at
the end of its travel.

)
Pull on the bonnet to check that it is
secured correctly.

Do not open the bonnet in high
winds.
When the engine is hot, handle
the exterior safety catch and the
bonnet stay with care (risk of
burns).






Before doing anything under the
bonnet, switch off the Stop &
Start system to avoid any risk of
injury resulting from an automatic
change to START mode.

10
CHECKS
186





























CHECKS

Unless otherwise indicated, check
these components in accordance with
the servicing booklet and according to
your engine.
Otherwise, have them checked by a
CITROËN dealer or a qualifi ed workshop.


Battery

The battery does not require
any maintenance.
However, check that the ter-
minals are clean and correctly
tightened, particularly in sum-
mer and winter.
When carrying out work on the battery,
refer to the "Practical information" sec-
tion for details of the precautions to be
taken before disconnecting the battery
and following its reconnection.


Air filter and passenger compartment filter

Refer to the servicing booklet
for details of the replacement
intervals for these compo-
nents.

Oil filter

Replace the oil fi lter each time
the engine oil is changed.
Refer to the servicing booklet
for details of the replacement
interval for this component.










Particle emission filter (Diesel)

According to your version of instrument
panel, the start of saturation of the par-
ticle emissions fi lter is indicated by:


- fi xed illumination of the par-
ticle emissions fi lter warning
lamp, accompanied by an au-
dible signal and a message
that there is a risk of blockage
of the particle emissions fi lter,






The presence of this label, in particular
with the Stop & Start system, indicates
the use of a specifi c 12 V lead-acid bat-
tery with special technology and speci-
fi cation, for which the involvement of a
CITROËN dealer or a qualifi ed work-
shop is required when replacing or dis-
connecting the battery.
Failure to observe this recommendation
may shorten the life of the battery.

Depending on the environment (e.g.
dusty atmosphere) and the use of the
vehicle (e.g. city driving), replace them
twice as often if necessary
(refer to
the "Engines" section).
A clogged passenger compartment fi l-
ter may have an adverse effect on the
performance of the air conditioning sys-
tem and generate undesirable odours.
As soon as the traffi c conditions per-
mit, regenerate the fi lter by driving at a
speed of at least 40 mph (60 km/h) until
the warning lamp goes off.
If the warning lamp stays on, refer to
the "Additive level" section.
On a new vehicle, the fi rst opera-
tions of regeneration of the particle
emissions fi lter may be accom-
panied by the smell of "burning",
which is perfectly normal.
Following prolonged operation
of the vehicle at very low speed
or at idle, you may, in excep-
tional circumstances, notice the
emission of water vapour at the
exhaust on acceleration. This
does not affect the behaviour of
the vehicle or the environment. or

-
temporary illumination of
the service warning lamp,
accompanied by an audible
signal and a message that
there is a risk of blockage of
the particle emissions fi lter.

11
PRACTICAL INFORMATION
207











BATTERY

The battery is located under the bonnet.
To gain access to it:


)
open the bonnet using the interior re-
lease lever, then the exterior safety
catch,

)
secure the bonnet stay,

)
remove the plastic cover to gain ac-
cess to the two terminals,

)
unclip the fuse box to remove the
battery, if necessary.



Access to the battery


Disconnecting the cables

Do not force the tab as locking
will not be possible if the clip is
not positioned correctly; start the
procedure again.





The presence of this label, in
particular with the Stop & Start
system, indicates the use of a
12 V lead-acid battery with spe-
cial technology and specifi cation;
the involvement of a CITROËN
dealer or a qualifi ed workshop is
essential when replacing or dis-
connecting the battery.
Failure to observe this recom-
mendation may cause premature
wear of the battery. Procedure for charging your battery
when it is fl at or for starting the engine
using another battery.

After refi tting the battery, the
Stop & Start system will only be
active after a continuous period
of immobilisation of the vehicle,
a period which depends on the
climatic conditions and the state
of charge of the battery (up to
about 8 hours).

)
Position the open clip 1
of the cable
on the positive terminal (+) of the
battery.

)
Press vertically on the clip 1
to position
it correctly against the battery.

)
Lock the clip by lowering the tab 2
.

)
Raise the locking tab fully.



Reconnecting the cables

11
PRACTICAL INFORMATION
208

Charging the battery using a
battery charger

)
Operate the starter, let the engine
run.

)
Wait until the engine returns to idle
and disconnect the cables.
It is advisable to disconnect the
battery if the vehicle is to be left
unused for more than one month. The batteries contain harmful
substances such as sulphuric
acid and lead. They must be
disposed of in accordance with
regulations and must not, in any
circumstances, be discarded
with household waste.
Take used remote control bat-
teries and vehicle batteries to a
special collection point.

)
Connect the red cable to the posi-
tive terminal (+) of the fl at battery A
,
then to the positive terminal (+) of
the slave battery B
.

)
Connect one end of the green or
black cable to the negative terminal
(-) of the slave battery B
.

)
Connect the other end of the green
or black cable to the earth point C

on the broken down vehicle.

Starting using another battery


The Stop & Start battery does
not have to be disconnected for
charging.


)
Disconnect the battery from the ve-
hicle.

)
Follow the instructions for use pro-
vided by the manufacturer of the
charger.

)
Reconnect starting with the negative
terminal (-).

)
Check that the terminals and connec-
tors are clean. If they are covered with
sulphate (whitish or greenish deposit),
remove them and clean them.
Do not disconnect the terminals
while the engine is running.
Do not charge the batteries with-
out disconnecting the terminals
fi rst.
Do not push the vehicle to start
the engine if it is fi tted with the 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.

Following reconnection of the
battery
Following reconnection of the
battery, switch on the ignition
and wait 1 minute before start-
ing to permit initialisation of the
electronic systems. However, if
problems are encountered fol-
lowing this operation, contact a
CITROËN dealer or a qualifi ed
workshop.
Referring to the corresponding
section, you must yourself reini-
tialise:


- the remote control key,

- the panoramic sunroof blind,

- the GPS satellite navigation
system.

11
PRACTICAL INFORMATION
209








LOAD REDUCTION MODE

System which manages the use of cer-
tain functions according to the level of
charge remaining in the battery.

When the vehicle is being driven, the
load reduction function temporarily deac-
tivates certain functions, such as the air
conditioning, the heated rear screen...
The deactivated functions are reactivat-
ed automatically as soon as conditions
permit.








ENERGY ECONOMY MODE

System which manages the period of
use of certain functions to conserve a
suffi cient level of charge in the battery.
After the engine has stopped, you can
still use functions such as the audio
equipment, windscreen wipers, dipped
beam headlamps, courtesy lamps, etc.
for a maximum combined period of thirty
minutes.

Switching to economy mode

Once this period has elapsed, a message
appears in the screen indicating that the ve-
hicle has switched to economy mode and
the active functions are put on standby.
If the telephone is being used at
the same time on the navigation
system, it will be interrupted after
10 minutes.
A fl at battery prevents the engine
from starting (refer to the corre-
sponding paragraph).


Exiting economy mode

These functions are reactivated auto-
matically the next time the vehicle is
driven.


)
In order to resume the use of these
functions immediately, start the engine
and let it run for a few minutes.
The time available to you will then be
double the period for which the engine
is left running. However, this period will
always be between fi ve and thirty minutes.

This period may be greatly re-
duced if the battery is not fully
charged.








CHANGING A WIPER BLADE

Before removing a front wiper
blade


)
Within one minute after switching off
the ignition, operate the wiper stalk
to position the wiper blades verti-
cally on the windscreen.



Removing



)
Raise the corresponding wiper arm.

)
Unclip the wiper blade and remove it.



Fitting



)
Put the corresponding new wiper
blade in place and clip it.

)
Fold down the wiper arm carefully.



After fitting a front wiper blade



)
Switch on the ignition.

)
Operate the wiper stalk again to
park the wiper blades.