2023 CITROEN C3 AIRCROSS brake fluid

10
Instruments
List of warning and
indicator lamps
Red warning/indicator lamps
STOP
Fixed, associated with another warning
lamp, accompanied by the display of a
message and an audible signal.
A serious fault with the engine, braking system
or power steering or a major electrical fault has
been detected.
Carry out (1) and then (2).
Parking brakeFixed.
The parking brake is applied or not
properly released.
BrakingFixed.
The brake fluid level in the braking circuit
has dropped significantly.
Carry out (1), then top up with fluid that complies
with the manufacturer's recommendations. If the
problem persists, carry out (2).
Fixed.
The electronic brake force
distribution

(EBFD) system is faulty.
Carry out (1) and then (2).
Door(s) openFixed, associated with a message
identifying the access.
A door or the tailgate is not properly closed
(speed less than 6 mph (10 km/h)).
Fixed, associated with a message
identifying the access, accompanied by
an audible signal.
A door or the tailgate is not properly closed
(speed above 6 mph (10 km/h)).
Seat belts not fastened/unfastenedFixed or flashing, accompanied by an
increasing audible signal.
A seat belt has not been fastened or has been
unfastened.
12 V battery chargeFixed.
The battery charging circuit is faulty
(e.g.

dirty terminals, loose or severed alternator
belt).
Carry out (1).
Clean and tighten the terminals. If the warning
lamp does not go off when the engine is started,
carry out (2).
Engine oil pressureFixed.
There is a fault with the engine lubrication
system.
Carry out (1) and then (2).
Maximum engine coolant temperatureFixed.
The temperature of the cooling system is
too high.
Carry out (1), then wait until the engine has
cooled down before topping up the level, if
necessary. If the problem persists, carry out (2).
Engine self-diagnostic systemFixed.
A major engine fault has been
detected.
Carry out (1) and then (2).
Orange warning/indicator lamps
Engine self-diagnostics system
Fixed.
A minor engine fault has been
detected.
Carry out (3).
Flashing.
The engine management system has a
fault.
There is a risk that the catalytic converter will be
destroyed.
You must carry out (2).
Fixed.
The emissions control system has a fault.
The warning lamp should go off when the engine
is started.
Carry out (3) without delay.

129
Practical information
7► Pull the interior release lever, located at the
bottom of the door frame, towards you.


► Tilt the safety catch to the left and raise the
bonnet.


► Unclip the stay from its housing and place it
in the support slot to hold the bonnet open.
Closing
► Hold the bonnet and pull out the stay from the
support slot.
►

Clip the stay in its housing.
►


Lower the bonnet and release it near the end
of its travel.
►


Pull on the bonnet to check that it is locked
correctly

.
Because of the presence of electrical
equipment under the bonnet, it is strongly
recommended that exposure to water (rain,
washing, etc.) be limited.
Engine compartment
The engine shown here is an example for
illustrative purposes only.
The locations of the following components may
vary:
–

Air filter
.
–

Engine oil dipstick.
–


Engine oil filler cap.
–


Priming pump.
Petrol engine

Diesel engine

1. Screenwash fluid reservoir
2. Engine coolant reservoir
3. Brake fluid reservoir
4. Battery
5. Remote earth point (-)
6. Fusebox
7. Air filter
8. Engine oil filler cap
9. Engine oil dipstick

130
Practical information
10.Priming pump*
Diesel fuel system
This system is under very high pressure.
All work must be carried out only by a
CITROËN dealer or a qualified workshop
Checking levels
Check all of the following levels regularly in
accordance with the manufacturer's service
schedule. Top them up if required, unless
otherwise indicated.
If a level drops significantly, have the
corresponding system checked by a CITROËN
dealer or a qualified workshop.
The fluids must comply with the manufacturer's requirements and with
the vehicle's engine.
Take care when working under the bonnet, as certain areas of the engine
may be extremely hot (risk of burns) and the
cooling fan could start at any time (even with
the ignition off).
* Depending on engine.
Used products
Avoid prolonged contact of used oil or fluids with the skin.
Most of these fluids are harmful to health and
very corrosive.
Do not discard used oil or fluids into
sewers or onto the ground.
Empty used oil into the containers reserved
for this purpose at a CITROËN dealer or a
qualified workshop.
Engine oil
The level is checked, with the engine having been switched off for at least 30
minutes and on level ground, either using the oil
level indicator in the instrument panel when the
ignition is switched on (for vehicles equipped
with an electric gauge), or using the dipstick.
It is normal to top up the oil level between two
services (or oil changes). It is recommended
that you check the level, and top up if necessary,
every 3,000 miles (5,000 km).
In order to maintain the reliability of the
engine and emissions control system,
never use additives in the engine oil.
Checking using the dipstick
For the location of the dipstick, please refer
to the illustration of the corresponding engine
compartment.
►

Grasp the dipstick by its coloured grip and
pull it out completely

.
►

Wipe the end of the dipstick using a clean,
lint-free cloth.


► Reinsert the dipstick and push fully down,
then pull it out again to visually check the oil
level: the correct level is between marks A
(max)
and B (min).
Do not start the engine if the level is:
–

above mark
A: contact a CITROËN dealer or a
qualified workshop.
–

below mark B

: top up the engine oil
immediately.
Oil grade
Before topping up or changing the
engine oil, check that the oil is suitable
for your engine and complies with the
recommendations in the service schedule
supplied with the vehicle (or available from
your CITROËN dealer or qualified workshop).
Use of non-recommended oil may invalidate
your warranty in the event of engine failure.
Topping up the engine oil level
For the location of the engine oil filler cap, please
refer to the corresponding engine compartment
illustration.
► Add oil in small quantities, avoiding any spills
on engine components (risk of fire).
► Wait a few minutes before checking the level
again using the dipstick.
► Top up the level if necessary.
► After checking the level, carefully screw the
oil filler cap back on and replace the dipstick in
its tube.
The oil level indication displayed on the instrument panel when the ignition is
switched on is not valid for 30 minutes
following an addition of oil.
Brake fluid
The level of this fluid should be close to the "MAX" mark. If not, check the brake
pads for wear.
To know how often the brake fluid should be
replaced, refer to the manufacturer's servicing
schedule.

131
Practical information
7supplied with the vehicle (or available from
your CITROËN dealer or qualified workshop).
Use of non-recommended oil may invalidate
your warranty in the event of engine failure.
Topping up the engine oil level
For the location of the engine oil filler cap, please
refer to the corresponding engine compartment
illustration.
►
Add oil in small quantities, avoiding any spills
on engine components (risk of fire).
►


W
ait a few minutes before checking the level
again using the dipstick.
►

T
op up the level if necessary.
►

After checking the level, carefully screw the
oil filler cap back on

and replace the dipstick in
its tube.
The oil level indication displayed on the instrument panel when the ignition is
switched on is not valid for 30 minutes
following an addition of oil.
Brake fluid
The level of this fluid should be close to the "MAX" mark. If not, check the brake
pads for wear.
To know how often the brake fluid should be
replaced, refer to the manufacturer's servicing
schedule.
Clean the cap before removing it to refill.
Use only DOT4 brake fluid from a sealed
container.
Engine coolant
It is normal to top up this fluid between
two services.
The check and top-up must only be done with
the engine cold.
A level of coolant that is too low risks causing
major damage to the engine; the coolant level
must be close to the "MAX" mark without ever
going above it.
If the level is close to or below the " MIN" mark, it
is essential to top it up.
When the engine is hot, the temperature of the
coolant is regulated by the fan.
As the cooling system is pressurised, wait at
least one hour after switching off the engine
before carrying out any work.
In order to avoid the risk of scalding if you need
to top up in an emergency, wrap a cloth around
the cap and unscrew the cap by two turns to
allow the pressure to drop.
Once the pressure has dropped, remove the cap
and top up to the required level.
Cooling of the engine when stopped
The engine cooling fan may start after
the engine has been switched off.
Take care with objects or clothing that
could be caught in the blades of the fan!
Screenwash fluid
Top up to the required level when necessary.
Fluid specification
The fluid must be topped up with a pre-mixed
product.
In winter (temperatures below zero), a fluid
containing an anti-freeze agent which is
appropriate for the temperature conditions
must be used in order to protect the system's
components (pump, tank, ducts, jets).
Filling with pure water is prohibited in all
circumstances (risk of freezing,
limescale, etc.).
Diesel fuel additive (Diesel
with particle filter)
On reaching the minimum level in the
particle filter additive tank, this warning
lamp comes on fixed, accompanied by an
audible signal and a warning message.
Topping up
The topping up of this additive must be carried
out quickly.
Visit a CITROËN dealer or a qualified workshop.
AdBlue® (BlueHDi)
An alert is triggered when the reserve level is
reached.

132
Practical information
For more information on the Indicators and in
particular the AdBlue range indicators, refer to
the corresponding section.
To avoid the vehicle being immobilised in
accordance with regulations, you must top up the
AdBlue tank.
For more information on AdBlue
® (BlueHDi),
and in particular the supply of AdBlue, refer to
the corresponding section.
Checks
Unless otherwise indicated, check these
components in accordance with the
manufacturer's service schedule and according
to your engine.
Otherwise, have them checked by a CITROËN
dealer or a qualified workshop.
Only use products recommended by
CITROËN or products of equivalent
quality and specification.
In order to optimise the operation of
components as important as those in the
braking system, CITROËN selects and offers
very specific products.
12 V battery
The battery does not require any maintenance.
Check regularly that the terminals are correctly
tightened (versions without quick-release
terminals) and that the connections are clean.
For more information on the precautions
to take before any work on the 12 V
battery, refer to the corresponding section.
Versions equipped with Stop & Start are
fitted with a 12 V lead-acid battery with
special technology and specifications.
Its replacement should be carried out only by
a CITROËN dealer or a qualified workshop.
Passenger compartment
filter
Depending on the environment and the
use of the vehicle (e.g. dusty atmosphere,
city driving), change it twice as often, if
necessary .
A clogged passenger compartment filter
can adversely affect air conditioning
system performance and generate
undesirable odours.
Air filter
Depending on the environment and the
use of the vehicle (e.g. dusty atmosphere,
city driving), change it twice as often, if
necessary .
Oil filter
Change the oil filter each time the engine
oil is changed.
Particle filter (Diesel)
The start of clogging of the particle filter is
indicated by the temporary lighting of this
warning lamp, accompanied by an alert
message.
As soon as the traffic conditions permit,
regenerate the filter by driving at a speed of at
least 37
mph (60 km/h) until the warning lamp
goes off.
If the warning lamp stays on, this
indicates a low Diesel additive level.
For more information on Checking levels,
refer to the corresponding section.
Following prolonged operation of the
vehicle at very low speed or at idle, you
may, in exceptional circumstances, notice
water vapour coming from the exhaust while
accelerating. These emissions have no
impact on the vehicle’s behaviour and the
environment.
New vehicle
During the first few particle filter
regeneration operations, you may notice a
"burning" smell. This is perfectly normal.
Manual gearbox
The gearbox does not require any maintenance (no oil change).
Automatic gearbox
The gearbox does not require any maintenance (no oil change).
Brake pads
Brake wear depends on the style of
driving, particularly in the case of vehicles
used in town, over short distances. It may be
necessary to have 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.
After washing the vehicle, moisture, or in wintry conditions, ice can form on the
brake discs and pads: braking efficiency may
be reduced. Gently dab the brakes to dry and
defrost them.
Brake disc wear
For information on checking brake disc
wear, contact a CITROËN dealer or a
qualified workshop.
Manual parking brake
If you notice excessive brake lever travel
or decreased effectiveness, the parking
brake must be adjusted, even between two
services.
This system must be checked by a CITROËN
dealer or a qualified workshop.

133
Practical information
7Automatic gearbox
The gearbox does not require any maintenance (no oil change).
Brake pads
Brake wear depends on the style of
driving, particularly in the case of vehicles
used in town, over short distances. It may be
necessary to have 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.
After washing the vehicle, moisture, or in wintry conditions, ice can form on the
brake discs and pads: braking efficiency may
be reduced. Gently dab the brakes to dry and
defrost them.
Brake disc wear
For information on checking brake disc
wear, contact a CITROËN dealer or a
qualified workshop.
Manual parking brake
If you notice excessive brake lever travel
or decreased effectiveness, the parking
brake must be adjusted, even between two
services.
This system must be checked by a CITROËN
dealer or a qualified workshop.
Wheels and tyres
The inflation pressure of all tyres, including the spare wheel, must be
checked on "cold” tyres.
The pressures indicated on the tyre pressure
label are valid for "cold" tyres. If you have driven
for more than 10 minutes or more than 6 miles
(10 kilometres) at over 31 mph (50
km/h), add
0.3 bar (30 kPa) to the values indicated on the
label.
Under-inflation increases energy
consumption. Non-compliant tyre
pressures cause tyres to wear prematurely
and have an adverse effect on the vehicle's
road holding - risk of accident!
Driving with worn or damaged tyres reduces the
braking and road holding performance of the
vehicle. Regularly check the condition of the
tyres (tread and sidewalls) and rims as well as
the presence of the valve caps.
When the wear indicators no longer appear set
back from the tread, the depth of the grooves is
less than 1.6 mm; replace the tyres as soon as
possible.
Using different size wheels and tyres from those
specified can affect the lifetime of tyres, wheel
rotation, ground clearance, the speedometer
reading and have an adverse effect on road
holding.
Fitting different tyres on the front and rear axles
can cause the ESC to mistime. Always mark the direction of rotation on the tyres
that will be stored when fitting winter or summer
tyres. Store them in a cool, dry place and away
from direct exposure to the sun's rays.
Winter or 4-seasons tyres can be
identified by this symbol on their
sidewalls.
AdBlue® (BlueHDi)
To respect the environment and ensure compliance with the Euro 6 standard, without
adversely affecting the performance or fuel
consumption of its Diesel engines, CITROËN
has taken the decision to equip its vehicles with
a system that combines SCR (Selective Catalytic
Reduction) with a Diesel Particle Filter (DPF) for
the treatment of exhaust gases.
SCR system
Using a liquid called AdBlue® that contains
urea, a catalytic converter turns up to 85% of
the nitrogen oxides (NOx) into nitrogen and
water, which are harmless to health and the
environment.
The AdBlue® is contained in a special
tank holding about 17 litres.
Its capacity allows a driving range of
approximately 3,900
miles (6,500 km),
which
may vary considerably depending on your
driving style.
An alert system is triggered once the reserve
level is reached: it is then possible to drive for a

213
Alphabetical index
Fitting roof bars 127–128
Fittings, boot
52
Fittings, interior

47–48, 50
Fittings, rear

50
Flap, fuel filler

121–122
Flashing indicators

56, 145
Floor, boot, adjustable

52
Fluid, brake

131
Fluid, engine coolant

131
Foglamp, rear

55–56
Foglamps, front

55–56, 59–60, 145
Foglamps, rear

55
Folding the rear seats

38–40
Frequency (radio)

198
Fuel

7, 121
Fuel consumption

7
Fuel tank

121–122
Fuses

147
G
Gauge, fuel 121–122
Gearbox, automatic
90, 92–93, 133, 148
Gearbox, manual

89–90, 93, 132
Gear lever, manual gearbox

89–90
Gear shift indicator ~ Gear efficiency
indicator

92
Glove box

48
G.P.S.

192
Grab handles

50
Grip control

68
H
Hazard warning lamps 64
headlamp adjustment
59
Headlamp adjustment

59
Headlamps, automatic dipping

58–59
Headlamps, automatic illumination

57–58
Headlamps, dipped beam

55, 145
Headlamps, halogen

145
Headlamps, main beam

55, 58, 145
Head restraints, front

36
Head restraints, rear

38–40
Head-up display

98–99
Heating

42, 44
Hill Assist Descent Control (HADC)

69–70
Hill Descent Control

69–70
Hill start assist

93
Hooks

52
Horn

65
I
Ignition 45, 88, 202
Ignition on
88
Ignition switch

86–87
Immobiliser, electronic

85
Indicator, AdBlue® range

15
Indicator, coolant temperature

14
Indicator, engine oil level

15
Indicators, direction

56
Inflating tyres

133, 158
Inflating tyres and accessories
(using the kit)
138, 141
Infrared camera

97
Instrument panel

8, 8–9, 98
Instrument panel, matrix

8
Instrument panels

8
Internet browser

193, 196
ISOFIX mountings

78, 80, 82
J
Jack 138, 141, 199
Jump starting
148
K
Key 24–27
Key, electronic
25–26
Keyless Entry and Starting

25–26, 85, 87–88
Key not recognised

88–89
Key with remote control

24, 85–86
Kit, hands-free

165–166, 179, 201
Kit, puncture repair

138
Kit, temporary puncture repair

137–139, 141
L
Labels 5
Labels, identification
157

214
Alphabetical index
Lamp, boot 54, 147
Lamps, parking
56
Lamps, rear

146
Lams with Full LED technology

59
Lane Departure Warning System
(LDWS)

110–111
LEDs - Light-emitting diodes

57, 145
Level, AdBlue®

131
Level, brake fluid

131
Level, Diesel additive

131–132
Level, engine coolant

14, 131
Level, engine oil

15, 130
Levels and checks

129–131
Level, screenwash fluid

61, 131
Light-emitting diodes - LEDs

57, 145
Lighting, cornering

59–60
Lighting, exterior

55, 58
Lighting, guide-me home

57
Lighting, interior

53–54
Lighting, mood

54
Lighting, welcome

57–58
Loading

127–128
Load reduction mode

127
Locating your vehicle

25
Locking

24–25
Locking from the inside

30
Locking the doors

30–31
Low fuel level

121–122M
Maintenance (advice) 135
Maintenance, routine
98, 132
Manoeuvring aids (recommendations)

97
Map reading lamps

53–54
Markings, identification

157
Mat

50, 98
Memorising a speed

99
Menu

178
Menu, main

160
Menus (audio)

173–174, 185–186
Messages

203
Messages, quick

203
Mirror, rear view

42
Mirrors, door

41–42, 111
Misfuel prevention

122
Mountings, ISOFIX

78, 80, 82
MP3 CD

164
N
Navigation 190–192
Navigation, connected
193–195
Net, storage

50
O
Obstacle detection 11 2
Oil change
130
Oil consumption 130
OIl, engine
130
On-board tools

53, 137–138
Opening the bonnet

128
Opening the boot

24, 26, 30
Opening the doors

24, 26, 29
P
Pads, brake 133
Paint
136, 157
Paint colour code

157
Parcel shelf, rear

52
Park Assist

11 6
Parking brake

89, 133
Parking sensors, audible and visual

11 2
Parking sensors, front

113
Parking sensors, rear

11 2
Plates, identification

157
Player, Apple®

165, 177, 200
Player, MP3 CD

164
Player, USB

163, 176, 199
Port, USB

49, 163, 176, 178, 195, 199
Pressures, tyres

133, 139, 141, 158
Pre-tensioning seat belts

72
Priming pump

137
Priming the fuel system

137
Profiles

181, 204
Protecting children

74–80
Puncture

138–139, 141