checking oil CITROEN C5 AIRCROSS 2021 Owners Manual

27
Retrieving the service
information
You can access the ser vice information at any
time in the instrument panel.The distance indicated (in miles or
kilometres) is calculated according to the
distance covered and the time elapsed
since the last ser vice.
The alert may be triggered close to a
due
date.
F

P
ress this button to temporarily display the
service information.
Engine oil level indicator
(Depending on version.)
On versions fitted with an electric oil level
indicator, the state of the engine oil level is
displayed in the instrument panel for a
few
seconds after switching the ignition on, after
the ser vicing information, in the form of
messages. The level read will only be correct if the
vehicle is on level ground and the engine
has been off for more than 30
minutes.
Low oil level
This is indicated by the display of a message
p rompting you to top up, accompanied by the
Service warning lamp and an audible signal.
If the low oil level is confirmed by a
check using
the dipstick, the level must be topped up to
avoid damage to the engine.
For more information on Checking levels ,
refer to the corresponding section.
Oil level indicator fault
This is signalled by the display of the " Oil
level measurement invalid " message in the
instrument panel.
Contact a
CITROËN dealer or a qualified
workshop. In the event of a
fault with the electric
indicator, the oil level is no longer
monitored.
If the system is faulty, you must check the
engine oil level using the manual dipstick
located under the bonnet.
For more information on Checking levels ,
refer to the corresponding section.
Engine coolant temperature
gauge
With the engine running:
- i n zone A , the temperature is correct,
-

i
n zone B , the temperature is too high; the
associated warning lamp and the central
STOP warning lamp come on in red in the
instrument panel, accompanied by the
display of a


message and an audible signal.
1
Instruments

189
F Lift the safety catch and raise the bonnet.
F
U
nclip the stay from its housing and place it
in the support slot to hold the bonnet open.
Closing
F Take the stay out of the support slot.
F C lip the stay in its housing.
F

L
ower the bonnet and release it near the
end of its travel.
F

P
ull on the bonnet to check that it is locked
c o r r e c t l y.
Because of the presence of electrical
equipment under the bonnet, it is
recommended that exposure to water
(rain, washing, etc.) be limited.
Engine compartment
These engines are examples provided as
a guide.
The locations of the following elements may vary:
-

A
ir filter.
-

E
ngine oil dipstick.
-

E
ngine oil filler cap.
-
P

riming pump.
-
D

egassing screw.
Petrol engine
Diesel engine
1. Screenwash fluid reservoir.
2. Engine coolant reservoir.
3. Brake fluid reser voir.
4. Battery/Fuses. The Diesel fuel system operates under
very high pressure.
All work on this circuit must be carried out
only by a
CITROËN dealer or a qualified
workshop.
5.
Remote earth point (-).
6. Fusebox.
7. A i r f i l t e r.
8. Engine oil filler cap.
9. Engine oil dipstick.
10. Priming pump*
11. Degassing screw*.
*
D
epending on engine.
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.
7
Practical information

191
During the 30 minutes after topping up the
o il, the check per formed with the oil level
indicator in the instrument panel when the
ignition is switched on is not valid.
Brake fluid
The level of this fluid should be close
to the " MAX" mark. If not, check the
brake pad wear.
To know how often the brake fluid should be
replaced, refer to the manufacturer's servicing
schedule.
Engine coolant
Check the engine coolant level
regularly.
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 low level presents a
risk of serious damage
to the engine.
The level of this fluid should be close to the
" MAX " mark but should never exceed it.
If the level is close to or below the " MIN" mark,
it is essential to top up.
When the engine is hot, the temperature of this
fluid is regulated by the fan.
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 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.
If topping up, clean the cap before
replacing it. Use only DOT4 brake fluid
from a sealed canister.
F

W

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

A

dd more oil if necessary.
F

A

fter checking the level, carefully refit the oil
filler cap and the dipstick in its tube.
Cooling of the engine when stopped
The engine cooling fan may star t 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 screenwash fluid must be topped up with
a ready for use mix.
In winter (temperatures below zero), a liquid
containing an anti-freeze agent must be
used which is appropriate for the prevailing
conditions, in order to preser ve the elements of
the system (pump, tank, ducts, etc.).
Filling with pure water is prohibited
under all circumstances (risk of freezing,
limestone deposits, jets, etc.).
Diesel fuel additive (Diesel
with particle filter)
or The minimum level in the particle
filter additive tank is indicated by fixed
illumination of this warning lamp,
accompanied by an audible warning
and a
message warning that the level
of additive is too low.
To p p i n g u p
This additive must be topped up without delay
by a CITROËN dealer or a qualified workshop.
7
Practical information

193
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 the emission of water vapour at the
exhaust on acceleration. This does not
affect the behaviour of the vehicle or the
environment.
New vehicle
The first particle filter regeneration
operations may be accompanied by a
"burning" smell, which is per fectly 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, 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.
Brake disc wear
For information on checking brake
disc wear, contact a CITROËN
dealer or a
qualified workshop.
Electric parking brake
This system does not require any
routine servicing. However, in case
of an issue, do not hesitate to have
the system checked by a
CITROËN
dealer or a
qualified workshop.
For more information on the Electric
parking brake , refer to the corresponding
section.
Wheels and tyres
The pressure must be checked on
all tyres, including the spare wheel,
when the tyres are "cold", at least
once a
month and before a long
j o u r n ey.
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.
7
Practical information

202
Do not exceed the speed of 50 mph
( 80 km/h) when driving with a tyre repaired
using this type of kit.
Checking/adjusting tyre
pressures
You can also use the compressor,
without injecting sealant, to check and, if
necessary, adjust the tyre pressures.
F

R
emove the valve cap from the tyre and
keep it in a
clean place.
F

U
ncoil the pipe stowed under the
compressor. F

C
heck that the compressor switch is in
position " O".
F
F
ully uncoil the electric cable, stowed under
the compressor.
F
C
onnect the compressor's electric plug to
one of the vehicle's 12 V sockets.
F
S
witch on the ignition.
If a pressure of 2 bars is not reached after
7 minutes, this indicates that the tyre is
not repairable; contact a CITROËN dealer
or a

qualified workshop for assistance.
F O nce the correct pressure is reached, put
the switch in position " O".
F

R
emove the kit then stow it.
F

S
top to check the repair and measure the
tyre pressure using the kit. F
S
crew the pipe onto the valve and tighten
f i r m l y.
The tyre inflation pressures are given on
this label.
F

S
tart the compressor by placing the switch
at position " I" and adjust the pressure to the
value shown on the vehicle's tyre pressure label. To deflate: press the black button
located on the compressor pipe, near the
valve connection.
Do not drive more than 125 miles (200 km)
with a
repaired tyre; see a CITROËN
dealer or a
qualified workshop to change
the tyre.
Should the pressure of one or more tyres
be adjusted, it is necessary to reinitialise
the under-inflation detection system.
For more information on Tyre under-
inflation detection , refer to the
corresponding section.
In the event of a breakdown

225
AAccessories .................................................... 89
Access to rear seats ....................................... 55
Active Safety Brake.................. 17, 15 6 -157, 159
AdBlue
® ..................................... 1 6, 28, 19 4 -195
AdBlue® tank ................................................. 19 6
Additive, Diesel ...................................... 191-192
Adjusting headlamps


...................................... 84
Adjusting head restraints


..........................54-55
Adjusting seats


.......................................... 55-56
Adjusting the air distribution


.....................64- 67
Adjusting the air flow
........................... 6

3, 65 - 67
Adjusting the date


............................... 34, 16, 29
Adjusting the height and reach of the steering wheel


.............................................. 58
Adjusting the lumbar support
.......................... 55
A

djusting the seat belt height
......................... 98
A

djusting the temperature

........................63, 65
Adjusting the time


............................... 34, 15, 30
Advanced Grip Control


............................. 95-96
Advice on care and maintenance


.................19 4
Advice on driving


................................... 11 6 -117
Airbags
...............................

.....19, 101, 103, 10 6
Airbags, curtain


...................................... 102-103
Airbags, front .................................. 101-103, 10 6
Airbags, lateral


....................................... 102-103
Air conditioning


................................... 62- 64, 67
Air conditioning, automatic


.......................65, 68
Air conditioning, dual-zone automatic


......64, 67
Air conditioning, manual
........................... 63

-64
Air intake


................................................... 65-66
Air vents


.......................................................... 61
Alarm


......................................................... 4 9 - 51
Anti-lock braking system (ABS)
................91-92
Anti-slip regulation (ASR)


...................18, 91- 9 6
Anti-theft/Immobiliser


............................. 4 0 , 11 8
Apple CarPlay connection


........................11, 17
Armrest, front
............................................. 7 3 -74
Assistance call
...............................

...........90 -91
Assistance, emergency braking


.......91- 92, 15 8
Audio streaming (Bluetooth)


...................8 -9, 23Cable, audio


....................................................23
Cable, Jack


.....................................................23
Capacity, fuel tank


........................................18 0
Cap, fuel filler

...............................
.................18 0
CD


...............................................................8, 23
CD, MP3


......................................................8, 23
Central locking
..........................................

36, 39
Changing a


bulb
.....................2

06 -207, 210 -211
Changing a


fuse
.............................21

2-213, 215
Changing a


wheel
.........................19

8 -19 9, 203
Changing a


wiper blade
..................................87
C

hanging the remote control battery

..............42
Charger, induction


......................................72-73
Charger, wireless
....................................... 7

2-73
CHECK
................

............................................29
Checking the engine oil level


..........................27
Checking the levels


................................18 9 -191
C
BBattery .................................... 186, 215, 217-218
Battery, 12 V ............................... ....192, 215 -217
Battery, charging


........................................... 217
Battery, remote control


.......................41- 4 3 , 7 0
Blind
..............................

............................52-53
Blind spot monitoring system, active
............165
Blind spot sensors


................................ 16 4 -166
BlueHDi


............................... 14, 28 -29, 192, 197
Bluetooth (hands-free)
........................ 12

, 24 -25
Bluetooth (telephone)
..................... 1

2-13 , 24 -2 6
Bonnet


.................................................... 188 -189
Boot


............................................... 44- 45, 47, 78
Brake discs


.................................................... 193
Brake lamps
...............................

...................210
Brakes


..................................................... 13, 193
Braking assistance system
.......................91-92
Braking, automatic emergency ...17, 15 6 -157, 159
Brightness
....................................................... 14
Bulbs


............................................................. 207
Bulbs (changing)


.................... 206 -207, 210 -211 Checking tyre pressures (using the
kit)

...............................................
199-200, 202
Checks

...........................................
189, 192-193
Checks, routine

......................................
192-193
Child lock

.......................................................
115
Children

..................................................
11 0 -114
Children (safety)

............................................
115
Child seats
.............
10
0, 104 -105, 107, 109 -110
Child seats, conventional

.......................
109 -110
Child seats, i-Size .........................................
114
Child seats, ISOFIX ................................
111 -114
Cigarette lighter

..............................................
72
CITROËN Connect Nav

....................................
1
CITROËN Connect Radio
................................. 1
C
leaning (advice)

..........................................
19 4
Closing the boot ..................................
39, 44- 45
Closing the doors ......................................39, 44
Coffee Break Alert
........................................160
Collision Risk Alert ................................. 15 6 -15 8
Configuration, vehicle
..................................... 33
C

onnection, Bluetooth
..............1

2-13, 19, 24-26
Connection, MirrorLink


........................1 0 -11, 1 8
Connection, Wi-Fi network


.............................19
Control stalk, lighting


................................79, 81
Control stalk, wipers

...........................8

5 - 86, 88
Controls, steering mounted


...................125 -12 9
Control, back-up boot release
..................45, 48
Control, back-up door
................................41- 42
Control, heated seats


......................................57
Courtesy lamp
...............................................2 11
Courtesy lamps
...............................................75
Cover, load space
...........................................76
Cruise control


..........................140 -141, 14 4 -14 6
Cruise control by speed limit recognition
...............................

............140 -141
Cruise control, adaptive
................................147
Cruise control, adaptive with Stop function


................................................140 -141
Cup holder
.......................................................71
.
Alphabetical index