service indicator CITROEN C4 2023 User Guide

52
Ease of use and comfort
Servicing the ventilation and air
conditioning system
►

Ensure that the passenger compartment
filter is in good condition and have the filter
elements replaced regularly

.
We recommend using a composite passenger
compartment filter. Its specific active additive
helps protect against polluting gases and bad
smells.
►

T

o ensure correct operation of the
air conditioning system, have it checked
according to the recommendations in the
Manufacturer’s service schedule.
Stop & Start
The heating and air conditioning systems
only operate when the engine is running.
Temporarily deactivate the Stop & Start
system to maintain a comfortable temperature
in the passenger compartment.
For more information on the Stop &
Start
system, refer to the corresponding
section.
ECO driving mode
Selecting this mode reduces electrical
energy consumption, but restricts the
performance of the heating and air
conditioning systems, although it does not
deactivate them.
Manual air conditioning

1. Adjusting the temperature
Air conditioning on/off
2. Adjusting the air flow
System switch-off
3. Adjusting the air distribution
4. Interior air recirculation
5. Rear screen demisting/de-icing
The air conditioning system only operates with
the engine running.
Adjusting the temperature
► Turn the knob 1 from blue (cold) to red (hot).
Air flow adjustment
► Turn the thumbwheel 2 to obtain a sufficient
air flow to ensure your comfort.
If the air flow control is in
the minimum position (system
deactivated), the temperature in the vehicle
will no longer be controlled. A slight flow of air
can still be felt, due to the forward movement
of the vehicle.
Adjusting the air distribution
Windscreen and side windows
Central and side air vents
Footwells
►

Press one of the buttons
3 to adjust the air
distribution inside the passenger compartment.
The lighting of the button indicates that air
is being blown in the specified direction. It
is possible to activate the following buttons
simultaneously:
–

Central and side air vents + footwells.
–


Windscreen and side windows + footwells.
Air conditioning on/off
The air conditioning system is designed to
operate effectively in all seasons, with the
windows closed.
It is used to:
–
lower the temperature in summer
,
–

increase the effectiveness of demisting in
winter

, above 3°C.
►

Press knob
1 to turn the air conditioning on/
off.
When the system is activated, the indicator lamp
comes on.

74
Safety
General safety
recommendations
Do not remove the labels attached in
different places on your vehicle. They
include safety warnings as well as
identification information for the vehicle.
For all work on your vehicle, use a
qualified workshop that has the technical
information, skills and equipment required, all
of which a CITROËN dealer is able to
provide.
Depending on country regulations,
certain safety equipment may be
mandatory: high visibility safety vests,
warning triangles, breathalysers, spare bulbs,
spare fuses, fire extinguisher, first aid kit, mud
flaps at the rear of the vehicle, etc.
Installing electrical accessories:
– The fitting of electrical equipment or
accessories not approved by CITROËN may
cause excessive current consumption and
faults and failures with the electrical system
of your vehicle. Contact a CITROËN dealer
for information on the range of approved
accessories.
–

As a safety measure, access to the
diagnostic socket, used for the vehicle's
electronic systems, is reserved strictly for
CITROËN dealers or qualified workshops,
equipped with the special tools required (risk
of malfunctions of the vehicle's electronic
systems that could cause breakdowns or
serious accidents). The Manufacturer cannot
be held responsible if this advice is not
followed.
–

Any modification or adaptation not intended
or authorised by CITROËN or carried out
without meeting the technical requirements
defined by the Manufacturer will result in the
suspension of the commercial warranty

.
Installation of accessory radio
communication transmitters
Before installing a radio communication
transmitter with an external aerial, you must
without fail contact a CITROËN dealer for
the specification of transmitters which can
be fitted (frequency, maximum power, aerial
position, specific installation requirements),
in line with the Vehicle Electromagnetic
Compatibility Directive (2004/104/EC).
Declarations of conformity for radio
equipment
The relevant certificates are available on the
brand website:
http://service.citroen.com/ACddb/
Hazard warning lamps



► Pressing this red button causes all the
direction indicators to flash.
They can work with the ignition switched off.
Automatic operation of hazard warning lamps
When braking in an emergency, depending on
the rate of deceleration, the hazard warning
lamps come on automatically. They switch off
automatically when you next accelerate.
They can be turned off by pressing the button
again.

75
Safety
5Horn

► Press the central part of the steering wheel.
Pedestrian horn (Electric)
This system alerts pedestrians that the vehicle is approaching.
The pedestrian horn operates once the vehicle
is moving and at speeds of up to 19 mph
(30
km/h), in forward or reverse gear.
This function cannot be deactivated.
Malfunction
In the event of a malfunction, this warning
lamp lights up on the instrument panel.
Have it checked by a CITROËN dealer or a
qualified workshop.
* In accordance with the general conditions of use of the service, available from dealers an\
d subject to technological and technical limitations.
** Depend ing on the geographic coverage provided by the "eCall (SOS)" and "ASSISTANCE" systems.
The list of countries covered and the telematic services provided is ava\
ilable from dealers or on the website for your country.
Emergency or assistance
call




1. eCall (SOS)
2. ASSISTANCE
eCall (SOS)
Your vehicle may be fitted with the eCall (SOS)
system either as standard or as an option.
The eCall
(SOS) system provides direct contact
to the emergency services and is fully built
into the vehicle. This contact is made either
automatically via the sensors built into the
vehicle, or by pressing button 1.
According to the country of sale, the eCall
(SOS)
system
corresponds to the systems PE112,
ERAGLONASS, 999, etc.
The eCall
(SOS) system is activated by default.
► To make an emergency call manually, press
button 1 for more than 2 seconds.
The lit indicator lamp and a voice message
confirm that the call has been made to the
emergency services*.
The eCall
(SOS) system immediately locates
your vehicle and puts you in contact with the
appropriate emergency services**.
►

Pressing again immediately cancels the
request.
The indicator lamp flashes while the vehicle
data is being sent, and then remains lit when
communication is established.
In the event that a serious accident is
detected by the sensors built into the
vehicle, such as the airbag control unit, an
emergency call is made automatically.
The eCall (SOS) system is a public
service of general interest and is
free-of-charge.

76
Safety
Operation of the system
Vehicles equipped with Touch screen
BLUETOOTH audio system, MyCitroën
Play or MyCitroën Drive
– Upon switching on the ignition, the indicator
lamp lights up red, then green, and then goes
out: the system is operating correctly
.
–

The indicator lamp flashes red: replace the
back-up battery

.
–

The indicator lamp is fixed red: system
malfunction.

The emergency and assistance call
services may not work.
–

If the indicator lamp does not come on when
the ignition is switched on, this also means that
there is a system malfunction.
If the problem persists, contact a qualified
workshop as soon as possible.
A system malfunction does not prevent the vehicle from being driven.
Vehicles equipped with MyCitroën Drive
Plus
– Upon switching on the ignition, the indicator
lamp lights up for a few seconds and then goes
out: the system is operating correctly
.
–

The indicator lamp flashes red: emergency
battery is flat.

This will be recharged after a few
minutes' driving.
–

The indicator lamp is fixed red: system
malfunction.

The emergency and assistance call
services may not work.
– If the indicator lamp does not light up when
the ignition is turned on, this is also a system
malfunction.
If the problem persists, contact a qualified
workshop as soon as possible.
A system malfunction does not prevent the vehicle from being driven.
When an onboard system update is
being performed, the eCall (SOS)
function is not available.
Data processing
All processing of personal data by
the eCall (SOS) function complies with
the framework for protection of personal
information established by Regulation
2016/679 (General Data Protection
Regulation - GDPR) and Directive 2002/58/
EC of the European Parliament and the
Council, and in particular, seeks to protect
the vital interests of the data subject, in
accordance with Article 6 (1) d) GDPR.
The processing of personal data is strictly
limited to the purpose of handling the eCall
(SOS) function used with the “112” single
European emergency call number.
The eCall (SOS) function is only able to
collect and process the following data
relating to the vehicle: vehicle identification
number, vehicle type (passenger vehicle or
light commercial vehicle), fuel type or power
source, three most recent locations and
direction of travel, number of passengers
and a timestamped log file of the automatic
activation of the system and its timestamp.
The recipients of the processed data are the
emergency call handling centres designated
by the relevant national authorities in the
territory in which they are located, enabling
priority routing and handling of calls to the
“112” emergency number.
Data storage
Data contained in the system’s memory
is not accessible from outside the system until
a call is made. The system is not traceable
and is not continuously monitored in its
normal operating mode.
The data in the system's internal memory is
automatically and continuously erased. Only
the vehicle’s three most recent locations,
necessary for the normal functioning of the
system, are stored.
When an emergency call is triggered, the data
log is stored for no more than 13 hours.
Access to data
You have the right of access to data and
as appropriate to request the rectification,
erasure or restriction of processing of any
personal data not processed in accordance
with the provisions of GDPR. Third parties
to which data has been disclosed shall

128
Driving
Operating limits
The system may issue an alert when the vehicle is travelling on a long, straight
road with smooth road surface even if the
driver thinks they are holding the steering
wheel correctly.
The system may not operate or may produce
unsuitable corrections to the steering in the
following situations:
–

Poor visibility (insufficient road lighting,
snowfall, rain, fog).
–


Dazzle (headlamps of an oncoming vehicle,
low sun, reflections on a wet road surface,
leaving a tunnel, alternating light and shade).
–


Windscreen area in front of the camera
dirty

, misted up, frost-covered, snow-covered,
damaged or covered by a sticker.
–

Lane markings eroded, partially hidden (snow
,
mud) or multiple (roadworks, surface joints).
–

T

ravelling in a tight bend.
–

Winding roads.
–


Presence of a tarmac joint on the road.
Risk of undesirable operation
The system should be deactivated in the following situations:
–

Driving with a "space-saver" type spare
wheel.
–


When towing or with a bicycle carrier
attached to a towing device, particularly when
a trailer is not connected or the trailer is not
an approved type.
–

Adverse weather conditions.
–


Driving on slippery road surfaces (risk of
aquaplaning, snow

, ice).
–

In roadworks or toll booth areas.
–


Driving on racing circuits.
–


Driving on a rolling road.
Malfunction
In the event of a malfunction, the
Service warning lamp comes on
and this (orange) symbol appears on the
instrument panel, accompanied by the display of
a message and an audible signal.
Have it checked by a CITROËN dealer or a
qualified workshop.
Lane keeping assist
For more information, refer to the
General recommendations on the use
of driving and manoeuvring aids .
The system corrects the vehicle's trajectory by
alerting the driver as soon as it detects a risk of
involuntary lane departure or crossing of a verge
or hard shoulder (depending on version).
To do this, the system uses a camera, placed on
the upper part of the windscreen, identifying the
lane markings on the ground and the side of the
road (depending on version).
This system is particularly useful on
motorways and main roads.


Operating conditions
– Vehicle speed between 40 and 112 mph (65
and 180 km/h).
–

Road marked with a central dividing line.
–


Steering wheel held in both hands.
–


Direction indicators not activated.
–


ESC system activated and operational.
The system helps the driver only if there is a risk of the vehicle unintentionally
wandering from the lane it is being driven in. It
does not manage the safe driving distance,
vehicle speed or braking.
The driver must hold the steering wheel with
both hands in a way that allows control to
be maintained in circumstances where the
system is not able to intervene (for example, if
the central dividing line disappears).
Operation
As soon as the system identifies a risk of
involuntarily crossing one of the lane markings
detected on the ground or a lane boundary
(e.g.
grass verge), it performs the trajectory

171
Practical information
7Electric motor

1.Screenwash fluid reservoir
2. Engine coolant reservoir (level only)
3. Brake fluid reservoir
4. Battery/Fuses
5. Fusebox
6. 400
V electrical circuit
7. Emergency circuit-breaker for emergency
services and maintenance technicians
For more information on the Charging system
(Electric), refer to the corresponding section.
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).
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.

173
Practical information
7AdBlue® (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 traffic conditions allow, regenerate
the filter by driving at a speed of at least 37
mph
(60

km/h), with an engine speed above 2,500
rpm, for about 15 minutes (until the warning lamp
goes out).
If it is not possible to reach 37
mph (60 km/h),
leave the engine running at idle for about 15
minutes, then drive with an engine speed above
2,500 rpm for 15 minutes.
Do not switch off the engine until the filter
is fully regenerated; repeated intervals
can degrade the engine oil prematurely.
Regenerating the filter while the vehicle is
stationary is not recommended.

174
Practical information
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).
Drive selector
The drive selector does not require any maintenance.
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.

175
Practical information
7Always 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.
Timing and accessory kits
The timing and accessory kits are used
from the time the engine is started until it
is switched off. It is normal for them to wear over
time.
A
faulty timing or accessory kit can damage
the engine, rendering it unusable. Observe the
recommended replacement frequency, stated in
distance travelled or time elapsed, whichever is
reached first.
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 15 litres.
Its capacity allows a driving range of
approximately 4,000
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
further 1,500 miles (2,400

km) before the tank is
empty and the vehicle is immobilised.
For more information on the Warning
and indicator lamps and the associated
alerts, or the Indicators, please refer to the
corresponding sections.
Once the AdBlue® tank is empty, a device
required by law prevents the engine from
being restarted.
If the SCR system is faulty, the level of
emissions from the vehicle will no longer meet
the Euro 6 standard and the vehicle starts
polluting the environment.
In the event of a confirmed SCR system
malfunction, it is essential to visit a CITROËN
dealer or a qualified workshop. After 685
miles (1,100 km), a device is automatically
activated to prevent the engine from starting.
In both cases, a range indicator indicates
the distance that can be travelled before the
vehicle is stopped.
Freezing of the AdBlue®
AdBlue® freezes at temperatures below
around -11°C.
The SCR system includes a heater for the
AdBlue
® tank, allowing you to continue driving
in very cold conditions.
Supply of AdBlue®
It is recommended that the AdBlue® be topped
up as soon as the first alert is issued indicating
that the reserve level has been reached.
For the correct operation of the SCR
system:
–

Use
only AdBlue
® fluid that meets the ISO
22241 standard.
–

Never

transfer AdBlue
® to another container
as it would lose its purity.
–

Never

dilute AdBlue
® with water.
You can obtain AdBlue
® from a CITROËN dealer
or a qualified workshop, as well as service

274
Alphabetical index
Immobiliser, electronic 95
Indicator, AdBlue® range
21
Indicator, coolant temperature

21
Indicator, engine oil level

20
Indicators, direction

66, 188
Indicator, service

19
Inflating tyres

174, 203
Inflating tyres and accessories
(using the kit)

181, 183
Information, vehicle

10, 268
Infrared camera

11 0
Instrument panel

10, 26, 111
Instrument panel, LCD

10
Internet browser

236, 239
ISOFIX mountings

87, 90–91
J
Jack 181, 184, 242
Jump starting
192
K
Key 32, 34, 37
Key, electronic
35–36
Keyless Entry and Starting

32, 34–36, 96–97
Key not recognised

97–98
Key with remote control

32, 95
Kit, hands-free

208–209, 218–219, 244, 260
Kit, puncture repair

181
Kit, temporary puncture repair 180–183
Klaxon
75
L
Labels, identification 202
Lamps, parking
66
Lamps, rear

189–190
Lamps with Full LED technology

70
Lane assist

118, 123–125
Lane keeping assist

128
Leather (care)

179
LEDs - Light-emitting diodes

66, 188–189
Level, AdBlue®

173
Level, brake fluid

172
Level, Diesel additive

173
Level, engine coolant

21, 172
Level, engine oil

20, 171
Levels and checks

170–172
Level, screenwash fluid

71, 172
Light-emitting diodes - LEDs

66, 188–189
Lighting, boot

64
Lighting, cornering

70
Lighting dimmer

25
Lighting, exterior

65, 68
Lighting, guide-me home

33, 67–68
Lighting, interior

62–63
Lighting, mood

63
Lighting, welcome

67–68
Loading

167–168
Load reduction mode

169
Locking 33–35
Locking from the inside
36
Locking the doors

36–37
Log, alerts

24
Lumbar

46
M
Mains socket (domestic network) 156
Maintenance (advice)
154, 177
Maintenance, routine

110, 173, 175
Manoeuvring aids (recommendations)

109
Map reading lamps

62
Markings, identification

202
Massage function

46
Mat

62, 110
Menu, main

28
Menus (audio)

205, 214–215, 228–229
Menu, shortcuts

28–29
Messages

246
Messages, quick

246
Minimum traction battery charge level
(Electric)

23
Mirror, rear view

48
Mirrors, door

48, 58, 131
Mirror, vanity

59
Misfuel prevention

153
Mobile application

30, 58, 163
Motor, electric

98, 171, 201
Mountings, ISOFIX

87, 90–91
Multimedia support

60