2012 Citroen C4 AIRCROSS check engine

38
Monitoring
Screen 1Screen 2CauseSolution - ActionObservations
You have moved off with the parkingbrake not fully released. Release the parking brake.
The oil pressure is too low or there
is a
fault with the engine lubrication
system. Stop the vehicle and contact a CITROËN dealer or a qualified
workshop.
Battery charge
fault. Stop the vehicle and contact a CITROËN dealer or a qualified
workshop.
Airba
g or pretensioner fault. Contact a CITROËN dealer or a qualified workshop to have the systems checked.
Fault with automatic headlampadjustment system. Contact a CITROËN dealer or a qualified workshop. Only on vehicles fitted with xenon headlamps.
Fault with the stabilit
y control
system (ASC). Contact a CITROËN dealer or a qualified workshop.
F
ault with the four wheel drive
transmission system. Contact a CITROËN dealer or a qualified workshop.

40
Monitoring
Screen 1Screen 2CauseSolution - ActionObservations
Engine oil level not correct (below minimum level or above maximum level). Stop the vehicle as soon as it is safe
to do so.
Check the level with the dipstick and
top-up if the level low.
I
f the level is above the maximum
mark, do not restar t the engine andcontact a CITROËN dealer or aqualified workshop. Never drive with an incorrect oil
level.
Presence of water in the Diesel fuel filter. Risk of damage to the injection system on Diesel engines. Contact a CITROËN dealer or aqualified workshop as soon as possible.
The ambient temperature is at or
below 3 °C
(37 °F). There may be black ice on the road.
Take care and drive gently.
The clutch pedal is not depressed
while star tin
g the engine. Depress the clutch pedal to star t theengine. For vehicles fitted with a manual gearbox.
The gear lever is not in position P
or position N
when starting the engine. Place the gear lever at position P tostart the engine. For vehicles fitted with a CVT gearbox.
The brake
pedal is not pressed
while star ting the engine. Press the brake pedal to star t theengine.

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.

101
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 faulty 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.