2020 CITROEN C4 oil

157
Practical information
7Oil 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).
►


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
(Petrol or Diesel)
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.
(Electric)
Do not top up the coolant.
If the level is close to or below
the "MIN" mark, it is essential to contact a
CITROËN dealer or a qualified workshop.
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.).

158
Practical information
AdBlue® (BlueHDi)
An alert is triggered when the reserve level is
reached.
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 of
specific technology and specification.
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.
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.

159
Practical information
7Manual gearbox
The gearbox does not require any maintenance (no oil change).
Automatic gearbox
The gearbox does not require any maintenance (no oil change).
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.
Electric parking brake
This system does not require any routine servicing. However, in the event of a
problem, 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.
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/drum wear
For any information on checking brake
disc/drum wear, contact 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.
Shock absorbers
It is not easy for drivers to detect when
shock absorbers are worn. Nevertheless,
the shock absorbers have a major impact on
road holding and braking performance.
For your safety and driving comfort, it is
important to have them regularly checked by a
CITROËN dealer or a qualified workshop.

163
Practical information
7To clean instrument panels, touch screens
or other displays, wipe gently with a soft,
dry cloth. Do not use products (e.g. alcohol,
disinfectant) or soapy water directly on these
surfaces - risk of damage!
Bodywork
High-gloss paint
Do not use abrasive products, solvents,
petrol or oil to clean the bodywork.
Never use an abrasive sponge to clean
stubborn stains - risk of scratching the
paintwork!
Do not apply polish in strong sunshine, or to
plastic or rubber parts.
Use a soft cloth and soapy water or a pH
neutral product.
Gently wipe the bodywork with a clean
microfibre cloth.
Apply polish with the vehicle clean and dry.
Comply with the instructions for use stated on
the product.
Decals
(Depending on version)
Do not use a high-pressure washer to
clean the vehicle - risk of damaging or
detaching the decals!
Use a high-flow hose (temperature
between 25°C and 40°C).
Place the jet of water perpendicular to the
surface to be cleaned.
Rinse the vehicle with demineralised water.
Textile
The dashboard, door panels and seats may
contain parts made of textile material.
Maintenance
Do not use aggressive cleaning products
(e.g. alcohol, solvent or ammonia).
Do not use steam-cleaning systems - risk of
affecting the adhesion of the fabrics!
Remove dust from the textile parts
regularly with a dry cloth, soft brush or
vacuum cleaner
.
Rub down the
textile parts once per year with
a clean, damp cloth. After leaving overnight to
dry, brush with a soft-bristled brush.
Stain removal
Do not rub the stain or it may spread or
you may cause the substance to
penetrate the surface.
Act quickly by reducing the stain from its edges inwards.
Remove as much substance or solids as
possible using a spoon or spatula, and
remove
as much liquid as possible using
absorbent paper.
Product/Procedure to use depending
on the type of stain:
–

Grease, oil and ink: clean with a pH-neutral
detergent.
–


V

omit: clean with sparkling mineral water.
–

Blood: spread flour over the stain and allow
to dry; remove with a slightly damp cloth.
–


Mud: allow to dry and then remove with a
slightly damp cloth.
–


Cake, chocolate, ice cream: clean with
lukewarm water

.
–

Sugary and/or alcoholic drinks: clean with
lukewarm water

, or lemon juice if the stain is
persistent.
–

Hair gel, coffee, tomato sauce, vinegar:
clean with lukewarm water and lemon juice.
For solid substances, then use a soft brush or
vacuum cleaner

.
For liquid substances, then use a damp
microfibre cloth and then dry with another
cloth.
Leather
Leather is a natural product. Appropriate regular
care is essential for its durability.

167
In the event of a breakdown
8Tyre inflation pressures are indicated on this label.
For more information on Identification
markings, particularly this label, refer to the
corresponding section.
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.
Repair procedure
Do not remove any foreign body
(e.g. nail, screw) which has penetrated
the tyre.
►

Park the vehicle without obstructing traffic
and apply the parking brake.
►


Follow the safety instructions (hazard
warning lamps, warning triangle, high visibility
jacket, etc.) according to the legislation in force
in the country in which you are driving.
►


Switch the ignition off.
►


Uncoil
the pipe stowed under the compressor.


► Connect the pipe from the compressor to the
bottle of sealant.


► Turn the bottle of sealant over and secure it
in the notch provided on the compressor.
►

Remove the valve cap from the tyre to be
repaired, and place it in a clean place.


► Connect the hose from the bottle of sealant
to the valve of the tyre to be repaired and tighten
firmly
.
►

Check that the compressor switch is in
position

"O".
►

Fully uncoil the electric cable stowed under
the compressor

.
►

Connect the compressor's electric plug to the
vehicle's 12

V socket.
► Affix the speed limit sticker .
The speed limit sticker must be affixed
inside the vehicle in the area close to the
driver, to remind them that a wheel is in
temporary use.
►

Switch the ignition on.

168
In the event of a breakdown

► Switch on the compressor by moving the
switch to position " I
" until the tyre pressure
reaches 2 bar. The sealant product is injected
under pressure into the tyre; do not disconnect
the pipe from the valve during this operation (risk
of blowback).
If after approximately 7 minutes, the
pressure of 2 bar is not reached, this
indicates that the tyre is not repairable;
contact a CITROËN dealer or a qualified
workshop for assistance.
►

Move the switch to position " O

".
►

Disconnect the compressor's electric plug
from the vehicle's 12

V socket.
►

Remove the kit.
►


Refit the cap on the valve.
►


Remove and store the bottle of sealant.
The sealant product is harmful if swallowed and causes irritation to the
eyes.
Keep this product out of the reach of children.
The use-by date of the fluid is marked on the
bottle.
After use, do not discard the bottle into the
environment; take it to a CITROËN dealer or
an authorised waste disposal site.
Do not forget to obtain a new bottle of
sealant, available from a CITROËN dealer or
a qualified workshop.


► Drive immediately for approximately 3 miles
(5 kilometres) at reduced speed (between
12 and 37 mph (20 and 60
km/h)) to plug the
puncture.
►

Stop to check the repair
and the tyre
pressure using the kit.
With a tyre repaired using this type of kit,
do not exceed a speed of 50
mph
(80

km/h) and do not drive more than
50

miles (80 km).
You must contact a CITROËN dealer or a
qualified workshop to have the repair checked
and the tyre changed.
Checking/adjusting tyre
pressures
The compressor can be used, without injecting
sealant, to check and, if necessary, adjust the
tyre pressures.
►

Remove the valve cap from the tyre and keep
it in a clean place.
►


Uncoil
the pipe stowed under the compressor.
►

Screw the pipe onto the valve and tighten
firmly

.
►

Check that the compressor switch is in
position " O

".
►

Fully uncoil the electric cable stowed under
the compressor

.
►

Connect the compressor's electric plug to the
vehicle's 12

V socket.
►

Switch the ignition on.
►


Start 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.
If after 7 minutes the pressure of 2 bar is
not reached, the tyre is damaged;
contact a CITROËN dealer or a qualified
workshop for assistance.
►

Once the correct pressure is reached, put the
switch in position " O

".
►

Remove the kit and stow it.
►


Refit the cap on the valve.

238
Alphabetical index
Charging connector (Electric) 140, 145,
147–148
Charging flap (Electric)

140, 145, 147–148
Charging system (Electric)

5, 8, 26, 138, 156
Charging the traction battery
(Electric)

21, 138, 142, 145, 147–148
CHECK

22
Checking the engine oil level

19
Checking the levels

156–157
Checking tyre pressures
(using the kit)

166, 168
Checks

155, 158–160
Checks, routine

158–159
Child lock

83
Children

72, 78–80
Children (safety)

83
Child seats

72, 75–78
Child seats, conventional

78, 81–82
Child seats, i-Size

80–82
Child seats, ISOFIX

78–79, 81–82
Cleaning (advice)

139, 162–163
Closing the boot

31, 35
Closing the doors

31, 35
Collision Risk Alert

122–123
Configuration, vehicle

25–26
Connected applications

221
ConnectedCAM Citroën™

100
Connection, Bluetooth

201–202,
221–222, 226–227
Connection, Wi-Fi network

222
Connectivity

220
Consumption figures

26Container, AdBlue® 160–161
Control, emergency boot release
35
Control, emergency door

32–33
Control, heated seats

42, 45
Controls, steering mounted

93–94
Control stalk, lighting

57–58
Control stalk, wipers

62–63
Control unit

141–142
Courtesy lamps

55
Cruise control

104–105, 107–108
Cruise control, adaptive

104–105, 109
Cruise control by speed limit
recognition

104–105
D
DAB (Digital Audio Broadcasting) -
Digital radio
199–200, 224
Date (setting)

206, 229
Daytime running lamps

58, 173
Deactivating the passenger airbag

74, 77
Deadlocking

29, 31
Deferred charging

27
Deferred charging
(Electric)

26–27, 140, 145, 148
Defrosting

43, 50
Defrosting, front

50
Demisting

43, 50
Demisting, front

50
Demisting, rear

51
Demisting, rear screen

51
Dials and gauges 9–10
Digital instrument panel
10
Dimensions

185
Dipstick

19, 156
Direction indicators

58, 173–174
Display, head-up

11
Display screen, instrument panel

9
Domestic charging
(Electric)

142, 147–148, 184
Doors

35
Drive Assist Plus

109
Driver’s attention warning

125
Drive selector (Electric)

94
Driving

84–85
Driving aids camera (warnings)

101
Driving aids (recommendations)

101
Driving economically

7
Driving modes

95–96
Dynamic stability control (DSC)

70
E
EBFD 69
Eco-driving (advice)
7
ECO mode

96
Economy mode

153
Electric motor

5, 8, 22, 26, 138,
150, 156, 175, 178, 184
Electric windows

37
Electronic brake force distribution (EBFD)

69
Emergency braking assistance (EBA)

70

239
Alphabetical index
Emergency call 67–68
Emergency switching off
88–89
Emergency warning lamps

66, 165
Emissions control system, SCR

21, 160
Energy economy mode

153
Energy flows

22, 26
Energy recovery

21, 95
Engine

160
Engine compartment

155
Engine, Diesel

137, 155, 165, 183
Engine, petrol

155, 182
Engines

181–183
Environment

7, 34, 85
ESC (electronic stability control)

69
Expanded traffic sign recognition

105
Exterior lighting

60
F
Fatigue detection 125
Filling the AdBlue® tank
158, 161
Filling the fuel tank

137–138
Filter, air

158
Filter, oil

158
Filter, particle

158
Filter, passenger compartment

46, 158
Fitting a wheel

169, 171
Fitting roof bars

152–153
Fittings, boot

55
Fittings, interior

52
Flap, fuel filler

137–138
Flashing indicators 58, 173
Floor, boot, adjustable
56
Fluid, brake

157
Fluid, engine coolant

157
Foglamp, rear

57, 174
Foglamps, front

57, 61
Folding the rear seats

44–45
Frequency (radio)

223
Fuel

7, 137
Fuel consumption

7
Fuel tank

137–138
Fuses

174
G
Gauge, fuel 137
Gearbox, automatic
92–94, 96, 159, 175
Gearbox, manual

92, 96, 159
Gear lever, manual gearbox

92
Gear shift indicator ~ Gear efficiency
indicator

97
Glove box

52
G.P.S.

217
H
Hazard warning lamps 66, 165
Headlamp adjustment
59
Headlamps, automatic dipping

60–61
Headlamps, automatic illumination

59
Headlamps, dipped beam 173
Headlamps, halogen
59, 173
Headlamps, main beam

60, 173
Head restraints, front

40
Head restraints, rear

44–45
Head-up display

10–11
Heated steering wheel

42
Heating

45, 47
Heating, programmable

27, 51
Hi-Fi system

54
High voltage

138
Hill start assist

96–97
Histogramme, fuel consumption

26–27
Horn

67
I
Ignition 88, 227
Ignition on
88
Ignition switch

86–87
Immobiliser, electronic

86
Indicator, AdBlue® range

20
Indicator, coolant temperature

19
Indicator, engine oil level

19
Indicators, direction

58, 173
Inflating tyres

159, 185
Inflating tyres and accessories
(using the kit)

166, 168
Information, vehicle

9, 234
Infrared camera

102
Instrument panel

9, 22, 24, 102