2012 Citroen C4 AIRCROSS brake fluid

26
Monitoring
Warning lamps
When the engine is running or the vehicle is
being driven, the illumination of one of the following warning lamps indicates a malfunction
which requires action on the par t of the driver.
The warnin
g comes on in the instrument panel
or appears in the instrument panel screen.
Warning lampis onCauseAction / Observations
Parking brake / Brake fluid level / Electronic brake force distributionfix
ed. It comes on for a few seconds, then goes off when the ignition is switched
to "ON".
The parkin
g brake is on or not fully released. It is accompanied by a message. Release the parkingbrake to make the warning lamp go off.
Th
e brake fluid level is too low.It is accompanied by a message. Top up with brake
fluid and contact a CITROËN dealer or a qualified
workshop.
Th
e electronic brake force distribution(EBFD) is faulty.You must stop as soon as it is safe to do so.
Have it checked by a CITROËN dealer or a qualified
workshop.
Engine autodiagnosis system
flashing. The engine management system hasa fault. Risk of destruction of the catalytic conver ter.
Have it checked by a CITROËN dealer or a qualified
workshop.
fix
ed. The emission control system has a
fault. The warning lamp should go off when the engine is started. If it does not go off, contact a CITROËN dealer or
qualified workshop without delay.
The illumination of a warning lamp may be accompanied by the display of an additionalmessage, to assist you in identifying the problem. If you encounter any problems, you should contact a CITROËN dealer or a qualified workshop.

36
Monitoring
Screen 1Screen 2CauseSolution - ActionObservations
The brake fluid level is too low. Top up using a brake fluid listed by CITROËN. If the problem persists, contact
a CITROËN dealer or a qualified workshop.
Fault with the brakin
g system. You must stop as soon as it is safe
to do so. Have the system checked by a CITROËN dealer or a qualified workshop.
Fault with the anti-lock braking
s
ystem (ABS). Contact a CITROËN dealer or a qualified workshop. The vehicle retains conventional
braking without assistance but you
are advised to stop.
One of the doors or the boot is notproperly closed. Close the door or the boot. The opening in question is identified
in the screen.
The bonnet is not properly closed. Close the bonnet.
F
ault with the electronic anti-theft
system. Switch off the ignition then start the engine again. If the problem persists, contact aCITROËN dealer.
The driver's door is open and theignition is still on. Switch off the ignition before leavingthe vehicle.

206
Checks
fluids and the replacement of cer taincomponents.














Petrol engines
1.
Screenwash and headlamp wash fluidreservoir.2.
Coolant header tank.3.
Brake fluid reservoir.4.
Battery. 5.
Fusebox.
6.Air filter.
7. Engine oil dipstick. 8.Engine oil filler cap.
1.6 litre 115
2.0 litre 150

207
8
Checks
checking the levels of the various fluids, for
replacing cer tain components and for primingthe fuel system.














Diesel engines
1.
Screenwash and headlamp wash fluidreservoir.2.Coolant reservoir.3.Brake fluid reservoir.4.
Battery.
5. Fusebox.
6.Air filter.
7. Engine oil dipstick.8.Engine oil filler cap.9.
Priming pump * . 1.6HDi 110
1.8 HDi 150
*

According to engine.

212
Checks
The coolant level should be closeto the "MA X" mark but should never exceed it.

In addition, as the cooling system is pressurised,
wait at least one hour after switching off the engine before carrying out any work.
To a v o i d a ny risk of scalding, unscrew the cap by two turns to allow the pressure to drop.
When the pressure has dropped, remove the
cap and top up the level.

Changing the coolant
The coolant does not have to be changed.


Fluid specifi cation

The coolant must conform to themanufacturer's recommendations. Th
e brake fluid level should be close
to the "MA X" mark. If it is not, check
the brake pad wear.
Brake fluid level
Changing the fl uid
Refer to the ser vicing booklet for details of the
interval for this operation.
Fluid specifi cation
The brake fluid must conform to themanufacturer's recommendations and meet the
DOT3 or DOT4 standard.

The cooling fan may start after switching off the engine: take care with ar ticles and
clothing that might become caught by the
fan blades.
When the engine is warm, the temperature of
the coolant is regulated by the fan.

216
Checks
Brake wear depends on the style
of driving, par ticularly in the case
of vehicles used in town, over shor t
distances. It may be necessary tohave the condition of the brakes checked, even between vehicle services.
Unless there is a leak in the circuit, a drop in
the brake fluid level indicates that the brake pads are worn.
Brake pads
For information on checking brake
disc wear, contact a CITROËN dealer
or a qualified workshop.
Brake disc wear
Parking brake
If excessive travel or a loss of effectiveness of this system isnoticed, the parking brake must be
checked, even between two services.
Only use products recommended by CITROËN or products of equivalent quality and specification.
In order to optimise the operationof units as impor tant as the brakingsystem, CITROËN selects and offers very specific products. To a v o i d d a m aging the electrical units, the use of a high pressure washer in the engine compar tment is strictlyprohibited.
Checking this system must be done by aCITROËN dealer or a qualified workshop.

.
323
Alphabetical index
Labels, identification .....................................222Lamps, front..................................................180Lamps, rear...................................................r184Lamps, warning and indicator...................r25-42LED daytime running lamps..........................182Level, brake fluid ...........................................212Level, headlamp wash..................................213Levels and checks.................................205-216Lighting, guide-me home..............................135Lighting, interior.....................................r142-14 4
Lighting bulbs (replacement) .................180-185Lighting control stalk..................................... 131Lighting dimmer..............................................r59Lighting on reminder.....................................r133Loading............................................................22Long objects, transpor ting..............................84
Low fuel level................................................208Luggage retaining strap................................104
Main beam....................................13 6, 180,182Maintenance....................................................22Map (colour screen) ......................................227Map reading lamps.......................................142Markings, identification.................................222Mat..................................................................99Match telephone ...................................269, 312Menus (audio)...............................................225Mirror, rear view..............................................87Mirrors, door....................................................r85Motorway function (direction indicators).......145Mountings for ISOFIX seats .................164, 167MP3 CD.................................................240, 299Music server..........................................r240-251
Navigation .............................................226-235Number plate lamps ..............................184, 185
Oil filter..........................................................r214Oil level..........................................................211Opening the bonnet ......................................205Opening the boot................................60, 64,71Opening the doors..............................60,64, 70Opening the fuel filler flap .............................208Operation indicator lamps.........................25-42
Radio.....................................................236,291Range..............................................................46RCA sockets .................................................304Rear foglamp .........................................13 3, 184Rear screen (demisting)..................................97Recharging the battery.................................194Recirculation / exterior air intake ..............91, 94Regeneration of
the par ticle emissions filter.........................215Remote control..........................................60-69Removing a wheel........................................176Removing the mat...........................................99Repair kit, puncture.......................................170Replacing bulbs.....................................180-185Replacing fuses.....................................186-191Replacing the air filter...................................r214Replacing the oil filter...................................r214Replacing the passenger compartment filter......................................r214Replacing wiper blades.................................195Rev counter.....................................................r24Reversing camera.........................................130Reversing lamps...........................................184Roof bars.......................................................201Roof blind ........................................................78Routine checks ......................................214-216Running out of fuel (Diesel)..........................210
L
M
N
O
R
Panoramic glass sunroof................................f78Parcel shelf, rear...........................................r105Parking brake........................................110, 216Parking sensors, front...................................129Parking sensors, rear............................r127, 128Particle emission filter..........r205,212,213, 215Passenger compartment filter......................r214Player, CD MP3.....................................240, 299Port, USB.............................102, 264, 304, 305Priming the fuel system ................................210Protecting children ........................155, 159 -16 9Puncture........................................................170
P
Screen (audio equipment) ...............................54Screen, instrument panel..........................31,43Screen-wash reservoir..................................213Screenwash, front......................................... 139Screenwash fluid level ..................................213
S

328
Visual search
Maintenance - Technical data
Engine compar tment fuses 18 6, 189 -191


Running out of fuel, Diesel 210
Checking levels 211-213 - oil - brake fluid - coolant - screenwash/headlamp wash fluid

Changing bulbs 180 -185 - front - rear




Petrol engines 217
Petrol weights 218
Diesel engines 219
Diesel weights 220
Dimensions 221
Identification markings 222


Bonnnet 205
Petrol engine compartment 206
Diesel engine compar tment 207
Battery 192-194
Automatic cut of power supply to accessories 195
Checking components 214 -216 - battery electrolyte - air filter - oil filter - particle emissions filter (Diesel) - brake pads / discs