2011 CITROEN C4 AIRCROSS engine

134
Visibility
The sensitivity of the automatic illuminationof headlamps can be configured via the colour screen "Equipment" menu.
In foggy weather or in snow, thesunshine sensor may detect sufficient light. The lighting will not come on automatically. Do not cover the sunshine sensor, the
associated functions will no longer becontrolled.
Automatic switching off
When the lighting control stalk is at "dipped or main beam headlamps", if the ignition switch
is at "LOCK" or "ACC" or if the key has been
removed from the ignition switch, the lamps switch off automatically when the driver's
door is opened .

Daytime running lamps
Daytime lighting which comes on automatically
when the engine is star ted making the vehicle
more visible to other users.
This
function is assured by special lamps.
The lighting control stalk must be placed in
position "0"
or "AU TO "(day mode).

Automatic illumination of headlamps
The sidelamps and the dipped beam headlampscome on automatically, without any action on the part of the driver, if a low level of exterior light is
detected or if the wipers are switched on.
When the li
ght returns to a sufficient level or the
wipers are switched off, the lighting is switched off
automatically.
The sensor is located at the base of the windscreen.
Contact a CITROËN dealer or a qualified workshop
to adjust the sensitivity of the sensor.

148
Safety
Associated systems which guarantee the directional stability of the vehicle within the limits of the laws of physics:
- traction control (TCL),
- active stability control (ASC).

Traction control and active stability control
Traction control optimises traction to prevent
wheel spin, by acting on the brakes of the
driving wheels and on the engine.
Active stability control acts on the brake of one
or more wheels and on the engine to keep the
vehicle on the trajectory required by the driver.

Activation

These systems are activated automaticallyeach time the vehicle is started.
The illumination o
f this warning lamp
in the instrument panel indicates
that the ASC and TCL systems are deactivated.


Deactivation

In exceptional conditions (starting a vehicle
which is bogged down, stuck in snow, on soft ground, ...), it may be advisable to deactivate
the ASC system, so that the wheels can movefreely and regain grip.
This is indicated b
y flashing of this symbol on the instrument panel screen.






















Trajectory control systems
)Press this button, located to the right of thesteering wheel, until the symbol appears in
the instrument panel screen.

Operation

They operate when the vehicle speed is higher
than 10 mph (15 km / h).
They come into operation in the event of a grip
or trajectory problem.

186
Practical information

















Changing a fuse
The extraction tweezer and spare fuses are
fitted in the engine compar tment fusebox.
To gain access to them: )Open the bonnet (refer to the "Checks"
section).
)Unclip the and remove the cover. )Remove the tweezer. )Carefully close the cover to ensure correct
sealing of the fusebox.
Access to the tools
Before changing a fuse, the cause of the failure
must be identified and rectified. ) Check that the switch is in the "LOCK"position or that the vehicle mode is "
OFF".)
Identify the failed fuse by checking thecondition of its filament. )
Use the special tweezer to extract the fuse from its location. )
Always replace the faulty fuse with a fuse of the same rating.)
Check that the number etched on the box,
the rating etched on the top and the tablesbelow all agree.

Changing a fuse
Good Failed


CITROËN will not accept responsibilityfor the cost incurred in repairing your vehicle or for rectifying the malfunctionsresulting from the installation of accessories not supplied and notrecommended by CITROËN andnot installed in accordance with its instructions, in par ticular when theconsumption of all of the additionalequipment connected exceeds 10 milliamperes.

Your vehicle's electrical system isdesigned to operate with standard or optional equipment.
Before installing other electrical equipment or accessories in your vehicle, contact a CITROËN dealer or aqualified workshop.


The replacement of a fuse not mentioned in the following tables may cause a serious fault on your vehicle.Contact a CITROËN dealer or a
qualified workshop.

189
7
Practical information

Engine compartment fuses


Access to the fuses
)Unclip the cover and remove it completely.
Fuse N°RatingFunctions
115 A
Front foglamps.
410 A
Horn.
57.5
A Alternator.
620 A Headlamp wash.
7 10 A
Air conditionin
g.
920 A
Alarm.
1015 A
Demisting, wipers.
11- Not used.
12-
Not used. The fusebox is placed in the en
gine compartment (left-hand side).

191
7
Practical information
The cover does not contain sparefuses with an amperage of 7.5 A, 25 A or 30 A. If one of the fuses with theseamperages develops a fault, replace itwith the following fuse: A 7.5 A fusemust be replaced with the10 A spare fuse, a 25 A fusewith a 20 A spare fuseand a 30 A fuse
with the audio system fuse (N° 31).
Fuse N°Rating
33 10 A
3415 A
3520 A

Spare fuses

The spare fuses are located under the enginecompartment fusebox cover.

192
Practical information











12 V battery
The battery is located under the bonnet.
To gain access to it:)open the bonnet using the interior release lever, then the exterior safety catch,
)secure the bonnet stay,
Access to the battery
Procedure for charging your battery when it is flat or for star ting the engine using another battery and jump leads.
) remove the retaining pins A , )
remove the protective cover B,)remove the retaining pins C , )remove the air duct D.

193
7
Practical information
necessary (see "Checking levels").


Starting using another
battery
)
Connect the red cable to the positive
terminal (+) of the flat battery A
, then to the
positive terminal (+) of the slave battery B.
) Connect one end of the green or blackcable to the negative terminal (-) of the slave battery B.)
Connect the other end of the green or black cable to the ear th point C
on your vehicle(engine mounting). )
Operate the starter, let the engine run.)
Wait until the engine returns to idle anddisconnect the cables.

)Raise the protective cover on the (+)terminal.

194
Practical information

The batteries contain harmful substancessuch as sulphuric acid and lead. Theymust be disposed of in accordancewith regulations and must not, in any circumstances, be discarded withhousehold waste. Ta k e used remote control batteries andvehicle batteries to a special collection point.
Do not reverse the polarity and use only a 12 V charger. Do not disconnect the terminals while the engine is running. Do not charge the batteries without disconnecting the terminals first.Do not push the vehicle to star t the engine if it is fitted with a CVT gearbox.

It is advisable to disconnect the battery if the vehicle is to be left unused for more than one month.
Before disconnectingthe battery
Wait 2 minutes after switching off theignition 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 minutebefore starting to permit initialisation of theelectronic systems. However, if problemsremain following this operation, contact a CITROËN dealer or a qualified workshop.

)Disconnect the battery from the vehicle, if necessary. )Follow the instructions for use provided by
the manufacturer of the charger.
)Reconnect starting with the negative
terminal (-). )Check that the terminals and connectors are clean. If they are covered with sulphate (whitish or greenish deposit), remove themand clean them.
Charging the battery using
a battery charger