2021 CITROEN C4 CACTUS fuel pressure

7
Limit the causes of excess
consumption
Spread loads throughout the vehicle; place
the heaviest items in the bottom of the boot,
as close as possible to the rear seats.
Limit the loads carried in the vehicle and
reduce wind resistance (roof bars, roof rack,
bicycle carrier, trailer, etc.). Preferably, use a
roof box.
Remove roof bars and roof racks after use.
At the end of winter, remove snow tyres and
refit your summer tyres.
Observe the recommendations
on maintenance
Check the tyre pressures regularly, when cold,
referring to the label in the door aperture,
driver's side.
Carry out this check in particular:
-
b
efore a long journey,
-

a
t each change of season,
-

a
fter a long period out of use.
Do not forget the spare wheel and the tyres on
any trailer or caravan. Have your vehicle ser viced regularly (engine
oil, oil filter, air filter, cabin filter, etc.) and
obser ve the schedule of operations in the
manufacturer's service schedule.
With a BlueHDi Diesel engine, if the SCR
system is faulty, your vehicle becomes
polluting. Visit a CITROËN dealer or a
qualified workshop as soon as possible to
bring your vehicle's nitrogen oxides emissions
back in line with the regulations.
When refuelling, do not continue after the 3
rd
cut-off of the nozzle to avoid any over flow.
At the wheel of your new vehicle, it is only
after the first 1,900 miles (3,000 kilometres)
that you will see the fuel consumption settle
down to a consistent average.
.
Eco-driving

75
All road (mud, damp grass,
etc.)
This mode, when moving off, allows
considerable spin on the wheel with the least
grip to optimise clearing of the mud and regain
grip. At the same time, the wheel with the most
grip is controlled in such a way as to pass as
much torque as possible.
When moving, the system optimises wheel spin
to respond to the driver's requirements as fully
as possible.
(mode active up to 31 mph (50 km/h))F

P
lace the knob in this position.
Sand
This mode allows little spin on the two driving
wheels at the same time to allow the vehicle to
move for ward and limit the risks of getting stuck
in the sand.
(mode active up to 75 mph (120 km/h))F

P
lace the knob in this position.
Do not use the other modes on sand as
the vehicle may become stuck. You can deactivate the ASR
and DSC systems by turning
the knob to the "
OFF" position.
The ASR and DSC systems will no longer
have an effect on engine operation or
the brakes in the event of an involuntary
change of trajectory.
These systems are reactivated
automatically from 31 mph (50 km/h) or
every time the ignition is switched on.
Driving recommendations
Your vehicle is designed principally to
drive on tarmac roads but it allows you to
occasionally drive on other less passable
terrain.
However, it does not permit off-road
driving such as:
- c rossing and driving on terrain which
could damage the underbody or strip
away components (fuel pipe, fuel
cooler, etc.) due to obstacles or stones
in particular,
-

d
riving on terrain with steep gradients
and poor grip,
-

c
rossing a stream.
Seat belts
Front seat belts
The front seat belts are fitted with a
pretensioning and force limiting system.
This system improves safety in the front
seats in the event of a front or side impact.
Depending on the severity of the impact, the
pretensioning system instantly tightens the seat
belts against the body of the occupants.
The pretensioning seat belts are active when
the ignition is on.
The force limiter reduces the pressure of
the seat belt on the occupant's chest, thus
improving their protection.
5
Safety

132
Recommendations on care
- Regularly check that the sensors and cameras are clean.
If necessary, clean the camera lenses with
a soft, dry cloth.
-

I
f using a high-pressure washer, do not
direct the lance less than 30 cm from the
sensors and cameras.
-

I
n bad weather, or during the winter, ensure
that the sensors and cameras are not
covered with mud, ice or snow.
Operating faults
When the function is not activated,
the button warning lamp flashing
and an audible signal indicates a
system fault.
If the fault occurs during the use of the system,
the warning lamp goes off.
If the fault in the parking sensors,
indicated by this warning lamp
coming on, occurs during use, it
causes the function to deactivate.
In the event of a fault, have the system checked
by a CITROËN dealer or a qualified workshop. In the event of a fault with the
power steering, this warning lamp
flashes in the instrument panel,
accompanied by a message.
You must stop as soon as it is safe to do so.
Contact a CITROËN dealer or a qualified
workshop.
Tyre under-inflation
detection
System which automatically checks the
pressures of the tyres while driving.
The system monitors the pressure in all four
tyres, as soon as the vehicle is moving.
It compares the information given by the
wheel speed sensors with reference values,
which must be reinitialised after ever y tyre
pressure adjustment or wheel change .
The system triggers an alert as soon as it
detects a drop in the pressure of one or more
tyres. The tyre under-inflation detection system
does not replace the need for vigilance on
the part of the driver.
This system still requires you to check the
tyre inflation pressure (including the spare
wheel) every month as well as before a
long journey.
Driving with under-inflated tyres impairs
handling, extends braking distances and
causes premature tyre wear, particularly
in adverse conditions (heavy loads, high
speeds, long journeys).
Driving with under-inflated tyres
increases fuel consumption.
The tyre pressure specifications for your
vehicle can be found on the tyre pressure
label.
For more information on the
Identification markings , refer to the
corresponding section.
Driving

144
Because of the presence of electrical
equipment under the bonnet, it is
recommended that exposure to water
(rain, washing, etc.) be limited.
Engines
Petrol
Diesel
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. 1.
Screenwash fluid reservoir.
2. Engine coolant reservoir.
3. Brake fluid reser voir.
4. Battery.
5. Fusebox.
6. A i r f i l t e r.
7. Engine oil dipstick.
8. Engine oil filler cap.
9. Remote earth point.
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.
Checking levels
Check all of these levels regularly, in line with
the manufacturer's service schedule. Top them
up if necessary, unless other wise indicated.
If a level drops significantly, have the
corresponding system checked by a CITROËN
dealer or a qualified workshop.
The fluid must comply with the
manufacturer's recommendations 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).
Used products
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 and dispose of
it in the containers reser ved for this
purpose.
Engine oil level
The check is carried out either when
the ignition is switched on using the
oil level indicator in the instrument
panel for vehicles equipped with an
electric gauge, or using the dipstick.
Practical information

152
F Obtain a container of AdBlue®. After first
checking the use-by date, read carefully
the instructions on use on the label before
pouring the contents of the container into
your vehicle's AdBlue
® tank.
Or
F

I

nsert the AdBlue
® pump nozzle and fill the
tank until the nozzle stops automatically.
Important:
To prevent the AdBlue
® tank from
ov
er flowing, it is recommended:
F

T

o top up between 10 and 13 litres
using AdBlue
® containers.
Or
F

I

f filling in a ser vice station, stop after
the third automatic shut-off of the
nozzle.
F

A

fter refilling, carry out these same
operations in reverse order.
F

W

ith the vehicle unlocked and the fuel filler
flap open, turn the AdBlue
® blue filler cap
anti-clockwise.Advice on care and
maintenance
Recommendations on the care and
maintenance of your vehicle are given in the
Maintenance and Warranty Guide.
Leather
Leather is a natural product. Appropriate
regular care and cleaning is essential for its
durability.
Refer to your vehicle's Maintenance and
Warranty Guide for information on all the
special precautions to observe.
Care of the stickers
These styling stickers are treated to give good
resistance to ageing and tearing.
They have been designed to allow you to
customise your vehicle's bodywork.
When using a high pressure jet wash, keep the
end of the lance at least 30 centimetres from
the stickers. For the care of the stickers in the rear door
windows, we recommend the following:
-

U
se a wide jet at a temperature of
between 25°C and 40°C.
-
W
here possible, direct the jet at right
angles to the stickers.
Practical information

180
The vehicle may be originally equipped
with tyres with higher load and speed
indices than those indicated on the label,
without affecting inflation pressure.
Checking tyre pressures
The tyre pressures should be checked when
cold at least monthly.
The pressures given on the label are valid for
cold tyres. If you have driven for more than
10 minutes or more than 6 miles (10 kilometres)
at more than 31 mph (50 km/h), the tyres will be
warm; in this case 0.3 bar (30 kPa) should be
added to the pressures given on the label.
Never reduce the pressure of a warm tyre.
Low tyre pressures increase fuel
consumption.
C. Manufacturer's label.
This tamperproof label on the middle door
pillar, right or left-hand side, contains the
following information:
-

t

he name of the manufacturer,
-

t

he European Whole Vehicle Type Approval
number,
-

t

he vehicle identification number (V.I.N.),
-

t

he maximum authorised weight (gross
vehicle weight),
-

t

he maximum authorised weight with trailer
(gross train weight),
-

t

he maximum front axle weight,
-

t

he maximum rear axle weight.
D. Tyre/paint label.
This label on the middle door pillar, driver's
side, contains the following information:
-

t

he tyre pressures, unloaded and loaded,
-

t

he tyre sizes (including the load index and
speed rating for the tyre),
-

t

he spare tyre inflation pressure,
-

t

he paint colour code.
Technical data

181
Accessories ..............................................69 , 99
Active Safety Brake........................... 15, 117-11 9
AdBlue
® ................................ 14, 21-22, 14 9 -15 0
Additive, Diesel ............................................... 12
Adjusting headlamps


...................................... 64
Adjusting head restraints


................................ 44
Adjusting seats


................................................ 43
Adjusting the air distribution


.....................50-53
Adjusting the air flow
................................. 50

-53
Adjusting the date


............................... 29, 32 , 17
Adjusting the height of the steering wheel


.....46
Adjusting the lumbar support
.......................... 44
A

djusting the temperature

........................50-53
Adjusting the time


............................... 29, 33 , 17
Advice on care and maintenance


...........55, 152
Advice on driving


...................................... 94-95
Airbags
...............................

.................16, 78 , 82
Airbags, curtain


......................................... 79-80
Airbags, front ....................................... 78- 80, 83
Airbags, lateral


.......................................... 79-80
Air conditioning


........................................... 6, 50
Air conditioning, automatic


.......................49-53
Air conditioning, manual
........................... 49,

51
Air intake


................................................... 50-53
Air vents


.......................................................... 48
Alarm


......................................................... 4 0 - 41
Anti-lock braking system (ABS)
......................72
Anti-slip regulation (ASR)


............................... 72
Apple CarPlay connection


........................18, 12
Armrest, front
............................................ 56, 58
Assistance call
...............................

............70 -71
Assistance, emergency braking


.............72, 11 8
Audio streaming (Bluetooth)


.................25 -26, 9 Cable, audio


....................................................25
Cable, Jack


.....................................................25
Capacity, fuel tank


.................................137-13 8
Cap, fuel filler

...............................
..........137-13 8
CD


...............................................................25, 9
CD, MP3


......................................................25, 9
Central locking
.......................................... 3

2, 34
Changing a bulb
..................... 16

1-162, 16 4 -165
Changing a fuse
...................... 16

6 -167, 16 9 -170
Changing a wheel
.......................... 15

4, 157-15 8
Changing a wiper blade
................... 67,

141-142
Changing the remote control battery


..............37
Checking the engine oil level


..........................21
Checking the levels


...............................14 4, 14 6
AB
C
Battery .................................... 140, 147 , 171 , 173
Battery, charging .................................... 172-173
Battery, remote control


.............................35-38
Blanking screen (snow shield)


......................13 9
Blind spot monitoring system
.................123 -124
Blind spot sensors


................................. 123 -124
BlueHDi


.............................................. 21-22, 149
Bluetooth (hands-free)
.................... 2

7-2 8, 13 -14
Bluetooth (telephone)
...................... 2

7-2 8, 13 -15
Bonnet


........................................................... 143
Boot


............................................... 39-40, 55, 59
Brake discs


.................................................... 148
Brake lamps
...............................

...................16 4
Brakes


....................................................... 9, 148
Braking, automatic emergency


.........15, 117-11 9
Brightness


....................................................... 16
Bulbs (changing)


............................ 161-162, 16 4 Checking tyre pressures
(using the kit) ..............................15 3 -15 4, 15 6
Checks


...........................................14 4, 147-148
Checks, routine


......................................147-148
Child lock


.........................................................93
Children


......................................................87- 91
Children (safety)


..............................................93
Child seats

........................77,

81- 82, 86 - 87 , 92
Child seats, conventional


................................86
Child seats, i-Size
...........................................91
Child seats, ISOFIX
..................................88 -91
Checking tyre pressures (using the kit)


..............................15 3 -15 4, 15 6
Checks


...........................................14 4, 147-148
Checks, routine


......................................147-148
Child lock


.........................................................93
Children


......................................................87- 91
Children (safety)


..............................................93
Child seats

........................77,

81- 82, 86 - 87 , 92
Child seats, conventional


................................86
Child seats, i-Size
...........................................91
Child seats, ISOFIX
..................................88 -91
CITROËN Connect Nav


....................................1
CITROËN Connect Radio
................................. 1
C

leaning (advice)

..........................................152
Closing the boot
........................................39-40
Closing the doors


......................................34, 39
Coat hanger


....................................................58
Collision risk alert


.........................................11 9
Configuration, vehicle
............................... 24

-27
Connection, Bluetooth
........ 21

-22, 27-2 8 , 13 -15
Connection, MirrorLink


........................19, 11 -12
Connection, Wi-Fi network


.............................22
Control, electric windows


................................41
.
Alphabetical index

184
Safety, children ...................78 -79, 81- 83 , 87- 91
Screen, cold climate ..................................... 13
9
Screen menu map


........................................... 12
Screenwash, front


........................................... 67
Screenwash, rear


............................................ 66
SCR (Selective Catalytic Reduction)


............149
Seat belts


....................................... 10, 76 -77 , 86
SRadio .............................................. 23, 25 , 6 -7 , 9
Radio, digital (Digital Audio Broadcasting – DAB)
................................24, 8
Range, AdBlue


........................................... 21-23
RDS
................

....................................... 23 -24, 7
Rear screen, demisting


...................................54
Recharging the battery


..........................172-173 Seat, rear bench


.......................................
45-46
Seats, front
...............................
.......................
43
Seats, heated

............................................
44-45
Seats, rear

.................................................
45-46
Selector, gear

.........................................
101-103
Serial number, vehicle

..................................
179
Service indicator

.............................................
20
Servicing
..................................................... 6,
20
Settings, equipment

..................................
24-27
Settings, system

........................................
32, 16
Sidelamps
.................... 61,
63-64
, 162, 16 4 -165
Side repeater

................................................
163
Snow chains

...........................................
13 8 -13 9
Socket, 12 V accessory ............................
56-57
Socket, auxiliary
.......................................... 25,
9
Socket, Jack

..............................................
57, 25
Sockets, audio
................................................ 57
Spe
ed limiter
..........................................
11
2 -114
Speed limit recognition
.......................... 11
0 -111
Stability control (ESC)..................................... 72
Starting a Diesel engine
............................... 13
6
Starting the engine
......................................... 96
S
tarting the vehicle
..............
94,
96-98
, 101-10 6
Starting using another battery

................
99, 171
Station, radio
...............................
.......
23 -24 , 6 -7
Stay, bonnet

..................................................
143
Steering mounted controls, audio ................ 3, 3
Steering wheel, adjustment ............................ 46
S
topping the vehicle

............94, 96-98 , 101-10 6
Stop & Start
.............................
18 , 28 , 49, 54 , 107-109 , 13 8, 143, 147, 174
Storage


......................................................56, 58
Sun visor
...............................

..........................56
Switching off the engine


.................................96
Synchronising the remote control
...................38
R
Pads, brake ................................................... 148
Paint colour code .......................................... 179
Panoramic glass sunroof


................................55
Parcel shelf, rear


....................................... 59-60
Park Assist

...............................
.....................127
Parking brake


........................................ 10 0, 148
Parking sensors, audible and visual


.............125
Parking sensors, front


...................................126
Parking sensors, rear .................................... 125
Plates, identification ...................................... 179
Player, Apple
® ............................................. 26, 9
Player, MP3 CD ............................... ................25
Player, USB

................................................. 25, 9
Port, USB

........................................ 56-57, 25, 9
Pre-heater, Diesel


........................................... 16
Pressures, tyres


..................... 15 4, 157 , 179 -18 0
Pre-tensioning seat belts


................................ 77
Priming pump
................................................ 15

3
Priming the fuel system
................................ 15 3
Profiles


...................................................... 31, 16
Protecting children


.............. 78 -79, 81- 83 , 87- 91
Puncture


................................. 15 3 -15 4, 15 6 -157 Recirculation, air


.......................................
50-53
Reduction of electrical load

..........................
140
Regeneration of the particle filter .................
147
Reinitialisation of the under- inflation detection system

...........................
13 3
Reinitialising the remote control
..................... 38
R
eminder, key in ignition
.................................
97
R
eminder, lighting on
......................................
62
R
emote control

...........................................
31- 3 6
Removing a wheel .................................
15 9 -161
Removing the mat ...........................................58
Replacing bulbs ............................. 16
1-162, 16 4
Replacing fuses


.............................166 -167, 169
Replacing the air filter
................................... 14

7
Replacing the oil filter
................................... 14

7
Replacing the passenger compartment filter


......................................147
Reservoir, screenwash


.................................14 6
Resetting the service indicator


.................20 -21
Resetting the trip recorder


........................28-29
Reversing camera
...............................

..........127
Reversing lamp


.............................................16 4
Roof bars


.......................................................142
Running out of fuel (Diesel)
..........................15 3
P
Alphabetical index