brake fluid CITROEN C4 AIRCROSS 2021 Handbook (in English)

14
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 part of the driver.
The warning comes on in the instrument panel or appears in the
instrument panel screen.Warning /indicator lampis on Cause Action / Observations
Parking brake
/
Brake fluid
level
/ Electronic
brake force
distribution fixed.
It comes on for a few seconds, then
goes off when the ignition is switched
to "ON".
The parking brake is on or not fully
released. It is accompanied by a message. Release the parking brake
to make the warning lamp go off.
The 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.
The 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 has
a fault. Risk of destruction of the catalytic converter.
Have it checked by a CITROËN dealer or a qualified
workshop.
fixed. 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.
Battery charge *fixed. The battery charging circuit has a
fault (dirty or loose terminals, slack or
cut alternator belt, ...). The warning lamp should go off when the engine is started.
If it does not go off, contact a CITROËN dealer or a qualified
workshop.
The illumination of a warning lamp may be accompanied by the display
of an additional message, to assist you in identifying the problem.
If you encounter any problems, you should contact a CITROËN dealer
or a qualified workshop.
* According to destination country.
Monitoring

24
Screen 1 Screen 2Cause Solution - 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 braking 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
system (ABS). Contact a CITROËN dealer or a
qualified workshop.The vehicle retains conventional
braking without assistance but you
are advised to stop.
The tyre pressure is too low in one
or more tyres. Check the tyre pressures as soon
as possible.
This check should preferably
be done with the tyres cold.
You must reinitialise the system
after adjusting one or more tyre
pressures or after changing one or
more wheels.
For more information, refer to the
"Under-inflation detection system"
section.If the problem persists, contact
a C
ITR
oËn d

ealer or a qualified
workshop.
There is a fault with the under-
inflation detection system and/or
at least one wheel does not have a
detected sensor. The tyre pressures are no longer
monitored.
Have the system checked by a
CITROËN dealer or a qualified
workshop.
Monitoring

214
Coolant level
The coolant level should be between
the two marks.In addition, as the cooling system is
pressurised, wait at least one hour after
switching off the engine before carrying out any
work.
To avoid any 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.
Fluid specification
The coolant must conform to the
manufacturer's recommendations.
The 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 fluid
Refer to the maintenance and warranty guide
for details of the interval for this operation.
Fluid specification
The brake fluid must conform to the
manufacturer's recommendations and meet
the
DOT3 or DOT4 standard.
The cooling fan may star t 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.
Checks

215
Avoid prolonged contact of used oil or
fluids with the skin.
Most of these fluids are harmful to
health or indeed very corrosive.
Do not discard used oil or fluids into
sewers or onto the ground.
Take used oil to a CITROËN dealer or
a qualified workshop (France) or to an
authorised waste disposal site.
Used products
To p p i n g u p
The reservoir must be topped up without delay
by a CITROËN dealer or a qualified workshop.
Additive level (1.6 HDi
110 Diesel versions with
particle filter)
The additive reservoir low level is indicated by
the display of this message.
Fluid specification
For optimum cleaning, this fluid must not be
topped up with or replaced with plain water.
Screenwash and headlamp
wash fluid
To check or top up the fluid, stop the
vehicle, apply the parking brake and
switch off the engine.
F

O

pen the bonnet and secure it with the
st ay.
F
o
p

en the filler cap for the screenwash
reservoir.
F

C

heck the level using the gauge, then
top-up if necessary.
F

R

efit the cap on the reservoir and close the
bonnet. In wintry conditions, the use of fluid with
an ethyl alcohol or methanol base is
recommended.
8
Checks

218
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.
Brake pads
For information on checking brake
disc wear, contact a CITROËN dealer
or a qualified workshop.
Brake disc wearParking brake
If excessive travel or a loss of
effectiveness of this system is
noticed, 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 operation of
units as important as those in the
braking system, CITROËN selects and
offers very specific products.
After washing the vehicle, dampness,
or in wintry conditions, ice can form
on the brake discs and pads: braking
efficiency may be reduced. Make light
brake applications to dry and defrost
the brakes.
Checking this system must be done by a
CITROËN dealer or a qualified workshop.
Unless there is a leak in the circuit, a drop in
the brake fluid level indicates that the brake
pads are worn.
Checks

337
Jack ...............................................................175
Keeping children safe
............ 1
49, 151, 155 -170
key .......

..................................................... 52- 61
ke

y, electronic
........................................... 5

6 - 61
Key in ignition warning

....................................98
K

eyless Entry and Starting
................. 5
6 - 61, 99
Key with remote control

.................... 5
2-55, 102
Labels, identification
..................................... 23

5
Lamps, front

.................................................. 18

2
Lamps, rear
...............................

....................18 6
Lamps, warning and indicator

...................1

3 -18
LED daytime running lamps

.........................18

4
Level, brake fluid

........................................... 2

14
Level, headlamp wash

..................................2

15
Levels and checks

................ 2
08, 209, 213 -218
Lighting bulbs (replacement)

.................18

2-187
Lighting control stalk

..................................... 12

7
J
K
L
Lighting dimmer ..............................................51
Lighting, guide-me home ..............................13
1
Lighting, interior
............................................ 14

0
Lighting on reminder

..................................... 12

9
Loading
..............................

.............................10
Long objects, transporting

..............................76
L

ow fuel level
..............................
..................210
Luggage retaining strap

..................................96
M

ain beam
..............................
..............182, 18 4
Maintenance
..............................

.....................10
Map (colour screen)

...................................... 26

6
Map reading lamps

....................................... 13

8
Markings,
identification
............................................... 23

5
Mat
.......

........................................................... 91
Menu
.................................................... 2

53, 294
Mirror, rear view

.............................................. 79
M

irrors, door.................................................... 77
Mountings for ISOFIX seats
...............

............................164, 165, 168
MP3 CD

................
........................ 276, 303, 325
M
N
oil filter .......................................................... 216oi
l level .......................................................... 213
Opening the bonnet

...................................... 2

07
Opening the boot

..............................
..52, 56, 63
Opening the doors

..............................5
2, 56, 62
Opening the fuel filler flap

.............................2

10
Operation indicator lamps

.........................1

3 -18
O
Navigation .............................................254-267
Navigation data ............................... ..............265
Number plate lamps

.............................. 1
86, 187
Pair telephone
...................................... 2

88, 308
Panoramic glass sunroof

................................70
P

arcel shelf, rear
............................................. 97
P

arking brake
........................................ 1
02, 218
Parking sensors, front

...................................12

5
Parking sensors, rear............................ 123, 124
Particle filter
.......................................... 21

5, 217
P
.
alphabetical index

215
8
Checks
C4-Aircross-add_en_Chap08_verifications_ed01-2015
Avoid prolonged contact of used oil or
fluids with the skin. Most of these fluids are harmful to health or indeed very corrosive.
Do not discard used oil or fluids into sewers or onto the ground. Take used oil to a CITROËN dealer or a qualified workshop (France) or to an authorised waste disposal site.
Used products
Topping up
The reservoir must be topped up without delay by a CITROËN dealer or a qualified workshop.
Additive level
(1.6 HDi 110 Diesel versions
with particle filter)
The additive reservoir low level is indicated by the display of this message.
Fluid specifi cation
For optimum cleaning, this fluid must not be topped up with or replaced with plain water.
Screenwash and headlamp
wash fluid
To check or top up the fluid, stop the vehicle, apply the parking brake and switch off the engine.
 Open the bonnet and secure it with the stay.  Open the filler cap for the screenwash reservoir.  Check the level using the gauge, then top-up if necessary.  Refit the cap on the reservoir and close the bonnet.
In wintry conditions, the use of fluid with an ethyl alcohol or methanol base is recommended.

215
8
Checks
C4-Aircross-add_en_Chap08_verifications_ed01-2015
Avoid prolonged contact of used oil or
fluids with the skin. Most of these fluids are harmful to health or indeed very corrosive.
Do not discard used oil or fluids into sewers or onto the ground. Take used oil to a CITROËN dealer or a qualified workshop (France) or to an authorised waste disposal site.
Used products
Topping up
The reservoir must be topped up without delay by a CITROËN dealer or a qualified workshop.
Additive level
(1.6 HDi 110 Diesel versions
with particle filter)
The additive reservoir low level is indicated by the display of this message.
Fluid specifi cation
For optimum cleaning, this fluid must not be topped up with or replaced with plain water.
Screenwash and headlamp
wash fluid
To check or top up the fluid, stop the vehicle, apply the parking brake and switch off the engine.
 Open the bonnet and secure it with the stay.  Open the filler cap for the screenwash reservoir.  Check the level using the gauge, then top-up if necessary.  Refit the cap on the reservoir and close the bonnet.
In wintry conditions, the use of fluid with an ethyl alcohol or methanol base is recommended.