2012 Citroen C4 AIRCROSS bulb

Contents
Direction indicators 145
Hazard warning lamps 145
Horn 145
Braking assistance systems 146
Tr ajectory control systems 148
Front seat belts 150
Airbags 154
Child seats 159
ISOFIX child seats 164
Child lock 169
Safety
Te m p o r a ry puncture repair kit 170
Changing a wheel 174
Changing a bulb 180
Changing a fuse 186
12 V battery 192
Automatic power cut-off to accessories 195
Changing a wiper blade 195
Recovering the vehicle 196
To w i ng a trailer 199
Fitting roof bars 201
Accessories 202
Practical information
Bonnet 205
Petrol engines 206
Diesel engines 207
Fuel tank 208
Running out of fuel (Diesel) 210
Checking levels 211
Checks 214
Checks
Petrol engines 217
Petrol weights 218
Diesel engines 219
Diesel weights 220
Dimensions 221
Identifi cation markings 222
Technical data
AUDIO-TELEMATIC system 223
AUDIO- CD system 283
Audio and telematics
Alphabetical index
Visual search

28
Monitoring
Operation indicator lamps
If one of the following indicator lamps comes on, this confirms that the corresponding system has come into operation.It may be accompanied by an audible signal and a message in the instrument panel screen.

Warning lampis onCauseAction / Observations
Left-hand direction indicator
flashing with audible
warning. The lighting stalk has been presseddownwards.If this indicator lamp flashes abnormally quickly, this could indicate that the bulb of one of the direction
indicators has blown. Change the bulb or contact a
CITROËN dealer or a qualified workshop.


Right-hand direction indicator
flashing with audible
warning. The lighting stalk has been pushed
upwards.If this indicator lamp flashes abnormally quickly, this could indicate that the bulb of one of the direction
indicators has blown. Change the bulb or contact a
CITROËN dealer or a qualified workshop.
Sidelampsor dipped beam headlampsfix
ed. The sidelamps or dipped beam headlamps are on.
Main beam headlampsfixed.The lighting stalk is pulled towardsyou. Pull the stalk to return to dipped beam headlamps.
Front foglampsfixed.The front foglamps are switched on. Turn the ring on the stalk rear wards twice to switch off
the front foglamps.
Rear foglampfixed.The rear foglamp is switched on. Turn the ring on the stalk rear wards to switch off the
rear foglamp.

137
5
Visibility

To avoid causing a nuisance to other road
users, the height of the halogen headlamp
beams should be adjusted according to the load in the vehicle.0 1 or 2 people in the front seats. 1
5 passengers (including the driver). 2
5 passengers (including the driver) +
maximum authorised load.3
Driver + maximum authorised load.









Manual adjustment of
the headlamp beams Automatic headlamp adjustment
In cases of malfunction, this message
appears in the multifunction screen.
Do not touch the xenon bulbs. Contacta CITROËN dealer or a qualifiedworkshop.
On vehicles with xenon bulbs: when stationary, the system automatically correctsythe height of the beam, whatever the load of the
vehicle. The driver is then assured of having
optimum lighting and not causing a nuisance to other road users.

180
Practical information








Changing a bulb
For bulbs that have alignment lugs (H1, H7...) ensure that they arefitted correctly for the best lightingperformance.

The headlamps have polycarbonate lenses with a protective coating:)do not clean them using a dry or abrasive cloth, nor with a detergent or solvent product,)use a sponge and soapy water, )when using a high pressurewasher on persistent marks,do not keep the lance directedtowards the lamps or their edges for too long, so as not to damage their protectivecoating and seals.
)Do not touch the bulb directly withyour fingers, use lint-free cloths. Changing a bulb should only be doneafter the headlamp has been switched off for a few minutes (risk of seriousburns). It is imperative to use only anti-ultraviolet (UV) type bulbs in order notto damage the headlamp. Always replace a failed bulb with a new bulb with the same type andspecification.
Risk of electrocution
Replacement of the xenon bulbs (D1S-35W) must be carried out bya CITROËN dealer or a qualified workshop.


Front lamps
1.Direction indicators(W Y21W-21W).2.Main beam headlamps (H1- 55W).3.Dipped beam headlamps (H11- 55W) or
Xenon bulb (D1S-35W).4.Sidelamps (W5W-5W).5.Daytime running lamps(P13W-13W).6. Daytime running lamps / sidelamps (light emitting doides-LEDs).7.Front foglamps (H11- 55W).

181
7
Practical information
Carry out the following operations for access
the bulb protective covers:
)Remove the retaining pins A.)Remove the protective cover B .



Access to bulbs Changing direction indicator bulbs (1)
)
Turn the bulb holder a quar ter of a turn to
the left and pull it out.
) Pull out the bulb and change it.
Rapid flashing of the direction indicator warning lamp (right or left) indicates thefailure of a bulb on that side.

To reassemble, carry out these operations in reverse order.
Amber coloured bulbs, such as the direction indicators, must be replaced with bulbs of identical specifications and colour.

182
Practical information
) Remove the protective plastic cover.)
Turn the bulb holder to the left and pull it out. )
Remove the bulb and its base by pressing on the lug at the bottom. )
Change the bulb.
For reassembly, carry out these operations in reverse order.
Changing main beam headlamp bulbs (2)
)
Turn the bulb holder a quar ter turn to the
left and pull it out. ) Pull out the bulb and replace it.
To reassemble, carry out these operations in reverse order.
Changing the daytime running lamps / sidelamps (light-emittingdiodes - LEDs) (6)
For the replacement of this type of LED lamp,contact a CITROËN dealer or a qualified
workshop.
Changing dipped headlamp
bulbs (3)
For the replacement of these bulbs, contact aCITROËN dealer or a qualified workshop.

To replace these bulbs contact a CITROËN
dealer or a qualified workshop.

Changing front foglamp
bulbs (7) / daytime running lamp bulbs (5)

184
Practical information
1.Third brake lamp (LEDs).2.Number plate lamps (W5W-5W).3.Rear foglamp (W21W-21W).4.Reversing lamp (W16W-16W).5.Direction indicators (W Y21W-21W).6.Sidelamps / brake lamps (W21-5W).
Rear lamps
Amber coloured bulbs, such as the direction indicators, must be replaced with bulbs of identical specification andcolour. These bulbs are chan
ged from outside the boot. )
Open the boot. )
Remove the two fixing screws. )
Unclip the lamp unit carefully extract it
pulling it towards the rear.) Turn the bulb holder a quar ter of a turn to
the left and pull it out.
) Pull the bulb out and change it.

To reassemble, carry out these operations in reverse order.
Take care to align the pins on the lamp unit with
the locations on the bod
ywork.
Changing sidelamp / brake
lamp (6), direction indicator (5),
and foglamp (3) bulbs
)Open the boot.)Inser t a screwdriver into the aper ture of thecover and lever it open.)Turn the bulb holder a quarter of a turn to
th
e left.)Pull the bulb out and change it.
To r e a s s e m b l e , c a r ry out these operations in
reverse order.
You can also contact a CITROËN dealer or a qualified workshop for the replacement of thesebulbs.

Changing reversing lamp
bulbs (4)

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7
Practical information
Changing number plate lamps (2)
)Push the lens to the left and then down. )Turn the bulb holder a quar ter turn to the
left and pull it out.)Remove the bulb and change it.
To r e f i t , c a r ry out these operations in reverse
order and press on the lens to clip it in place.
Third brake lamp (light emitting
diodes - LEDs) (1)
Contact a CITROËN dealer or qualifiedworkshop for the replacement of this type of lamp.