check engine CITROEN C4 AIRCROSS 2011 User Guide

89
3
Comfort
In order for these systems to be fully effective, follow the operation and maintenance guidelines below: )
To obtain an even air distribution, take care not to obstruct the exterior air intake grilles
located at the base of the windscreen, the nozzles, the vents and the air outlets, as wellas the air extractor located in the boot. )
Do not cover the sunshine sensor, located on the dashboard; this is used for regulation of the digital air conditioning system. )
Operate the air conditioning system for at least 5 to 10 minutes, once or twice a monthto keep it in per fect working order. )
Ensure that the passenger compar tment filter is in good condition and have the filter elements replaced regularly. We recommend the use of a combined passenger compartment filter. Thanks to its special active additive, it contributes to the purification of the air breathed by theoccupants and the cleanliness of the passenger compartment (reduction of allergic symptoms, bad odours and greasy deposits).)
To ensure correct operation of the air conditioning system, you are also advised to haveit checked regularly as recommended in the ser vicing booklet. )
If the system does not produce cold air, switch it off and contact a CITROËN dealer or a qualified workshop.











Recommendations for ventilation and air conditioning


If after an extended stop in sunshine, the interior temperature is very high, firstventilate the passenger compartment for
a few moments. Put the air flow control at a setting high enough to quickly change the air in the passenger compartment.

The air conditioning system does notcontain chlorine and does not present any danger to the ozone layer.

The condensation created by the air conditioning results in a dischargeof water under the vehicle which is perfectly normal.


When towing the maximum load on a steep gradient in high temperatures, switching off theair conditioning increases the available engine power and so improves the towing ability.

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3
Comfort





Front armrest

Pull the right-hand lever to open the storage compartment lid, which serves as an armrest.
To close, fold down the lid until it locks. Pull the left-hand lever to open the lid.
To c l o s e , fold down the lid until it locks.
This storage compar tment may contain up
to 3 accessory sockets.
This operates when the i
gnition switch is in the
"LOCK", "ACC" or "ON" position.
Open the cover of the front armrest to gain access to the socket.


Upper storage compartment Lower storage compartment

Check that the electrical equipment operates on 12 V and that its maximum electrical power is 120 W.
The prolonged use of electrical equipment without running the engine may discharge the battery.






12 V socket
(120 W max)

117
4
Driving

Emergency release

If the battery is discharged or if the gear lever
locking mechanism is damaged, it is possible
for the gear lever to be locked in position P,Peven when you press the brake pedal firmly. However, i
f you have to move the vehicle, release the gear lever using the followingprocedure: ) Apply the parking brake. )
Switch off the engine if necessary. )
Remove the cap A, using a flat screwdriver covered with a cloth. )
Press the brake pedal firmly. )
Put the ignition switch into position ACC(ACC mode, if you vehicle has the Keyless
Entry and Star ting system).) Inser t the screwdriver into the aper ture. )
While pushing the screwdriver downwards,
move the gear lever to position N.
You must contact a CITROËN dealer or a qualified workshop to have thesystem checked .

118
Driving





Hill start assist
System which keeps your vehicle immobilised
temporarily (approximately 2 seconds) whenstarting on a gradient, the time it takes to
move your foot from the brake pedal to the accelerator pedal.
This function is only active when:
- the vehicle is completely stationary, withyour foot on the brake pedal,
- when cer tain conditions of gradient are met,
- with the driver’s door closed.
The hill start assist function cannot bedeactivated.
On an ascendin
g slope, with the vehiclestationary, the vehicle is held for a brief moment when you release the brake pedal:

- if you are in first gear or neutral with a
manual gearbox,

- if you are in position Dwith the CVT gearbox.


Operation
On a descending slope, with the vehicle
stationary and reverse gear engaged, thevehicle is held for a brief moment when you release the brake pedal.
Do not leave the vehicle while it is beingheld in the hill star t assist phase.
If you need to leave the vehicle whilethe engine is running, apply the parking brake.



Operating fault

If a fault occurs with the system, this warninglamp comes on, accompanied by a message
in the instrument panel screen. Contact a CITROËN dealer or a qualified workshop tohave the system checked.
When the engine is not running,including periods on standby withthe Stop & Start (AS&G) system, thefunction is not operative.

121
4
Driving
The system is reactivated automatically at every new star t using the key or the STA R T/STOP button.

Reactivation

Press the "AS&G OFF"switch again.
The s
ystem is active again; this is confirmed by
the "AS &G O FF "
warning lamp going off in the
instrument panel or instrument panel screen.
Operating fault
In the event of a malfunction with the system,
the "AS&G OFF"warning lamp flashes in theinstrument panel or instrument panel screen,and the system no longer operates.
have it checked by a CITROËN dealer or a qualified workshop.
This system requires a specific battery with a special specification and technology (reference numbersavailable from a CITROËN dealer or a qualified workshop).
Fitting a battery not listed by CITROËN
introduces the risk o
f malfunction of the system.

Maintenance

The "Auto Stop & Go" system makes use of advanced technology. All work on this type of battery must be doneonly by a CITROËN dealer or a qualified workshop.
In the event o
f a fault in STOP mode, the
vehicle may stall. The following warning lampscome on in the instrument panel or instrumentpanel screen:
It is then necessar
y to switch off the ignition,
then restart the engine using the key or theSTA R T/STOP button.

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.

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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.

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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

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7
Practical information

Removing a front or rear
wiper blade
) Raise the corresponding wiper arm.)
Remove the wiper blade, sliding it towards
the outside.










Changing a wiper
blade

Fitting a front or rear wiper
blade
) At the front, check the size of the wiper blade as the shorter blade is fitted on the
right-hand side of the vehicle.) Put the corresponding new wiper blade in
place and fix it. )
Fold down the wiper arm carefully.


Automatic power cut-off to accessories

After the engine has stopped, when the ignition switch is in the "ACC" position(or the vehicle in "ACC" mode)
you can still use functions such as the audio equipment, windscreen wipers, dipped beamheadlamps, cour tesy lamps, etc. for about
t
hirty minutes.
Cutting off
Once the thir ty minutes have expired, thepower supply to the accessories will be automatically cut off.
Restoring power
The power supply will be restored the next time
the ignition is switched on.

The period before cut-off can beextended up to about sixty minutes or deactivated, via the colour screen"Equipment" menu.

200
Practical information
Driving advice
Distribution of loads
)Distribute the load in the trailer so that theheaviest items are as close as possible to
the axle and the nose weight approaches the maximum permitted without exceeding it.
Air density decreases with altitude, thus reducing engine performance. Above
1 000 metres, the maximum towing load must
be reduced by 10 % of the GTW and so on for every 1 000 metres of altitude.
Refer to the "Technical Data" section for details
of the weights and towing loads which apply to your vehicle.
Side wind
)Take into account the increased sensitivity
to side wind.

Cooling

To w i ng a trailer on a slope increases the
temperature of the coolant.
As the fan is electricall
y controlled, its cooling capacity is not dependent on the engine speed.)
To lower the engine speed, reduce your speed.
The maximum towing load on a long slope
depends on the gradient and the outside
tem
perature.
In all cases, pay attention to the coolant
temperature.
) If this message is displayed, stop your vehicle as soon as it is safe to do so.


Braking

To w i ng a trailer increases the braking distance.


Tyres
)Check the tyre pressures of the towingvehicle and of the trailer, obser ving the recommended pressures.



Lighting
)Check the lighting and signalling on the
trailer.
I
f the message flashes slowly, wait for the engine to cool before topping up the level, if necessary.
If the messa
ge flashes rapidly, contact a CITROËN dealer or a qualified workshop
without delay.