CITROEN C4 2020 Service Manual

39
Access
2Ensure that any luggage or accessories
carried on the roof bars do not interfere
with the movement of the sunroof.
Do not place heavy loads on the movable
glass panel of the sunroof.
If the sunroof is wet, following a shower
or washing the vehicle, wait until it is
completely dry before opening.
Do not operate the sunroof if it is covered by
snow or ice - risk of damage!
Use only plastic scrapers to remove snow or
ice from the sunroof.
Regularly check the condition of the
sunroof seals (e.g. presence of dust,
dead leaves).
If using a car wash, check first that the roof is
correctly closed and keep the high-pressure
jet at least 30 centimetres from the seals.
Never leave the vehicle with the sunroof
open.
Operation
When opening the sunroof fully, the movable
glass moves to a partially open position, then
slides over the roof. Any intermediate position is
possible.
Before operating the sunroof control
button, ensure that no object or person
might prevent the movement.
Pay particular attention to children when
operating the sunroof.
If something is trapped when operating the
sunroof, reverse the movement of the sunroof
by pressing the control button in question.
The driver must ensure that passengers use
the sunroof correctly.
Any manual intervention on the position of
the sunroof may disturb the anti-pinch device.
Perform a reinitialisation.
Anti-pinch system
If the sunroof encounters an obstacle when
closing, the movement is automatically reversed.
Opening/closing the sunroof
â–º To open the sunroof, use the part of the
button located towards the rear.
â–º

T
o close the sunroof, use the part of the
button located towards the front.
Operating the button
â–º Pressing the button beyond its point of
resistance opens or closes the sunroof fully .
â–º

Pressing the button again stops the
movement in progress.
â–º


By keeping the button pressed (without going
beyond the point of resistance), the movement of
the glass stops when this button is released.
â–º When the sunroof is closed: pressing once
without passing the point of resistance moves it
to the partially open position.
â–º

When the sunroof is partially open: pressing
once on the front part of the button, without
going beyond the point of resistance, closes it
completely

.
The sunroof and windows can be closed by holding down the remote control
locking button.
Opening/closing the blind
â–º To open the blind, pull its handle backwards
until the desired position is reached.
â–º

T
o close the blind, push its handle forwards
until the desired position is reached.
Reinitialisation
Reinitialisation is required after reconnecting the
battery, or if the sunroof malfunctions or moves
in a jerky manner.
â–º

Check that nothing is affecting the movement
of the sunroof and that the seals are clean.
â–º With the ignition on, press and hold
the front part of the button to close the
sunroof.
The sunroof closes step by step. When fully
closed, it performs a slight opening/closing
movement.
â–º

Release the button 1 second after the end of
the movement.

40
Ease of use and comfort
Correct driving position
For safety reasons, adjustments must
only be made when the vehicle is
stationary.
Before taking to the road and to make the most
of the ergonomic layout of the instruments and
controls, carry out these adjustments in the
following order:
–

head restraint height.
–


seat backrest angle.
–


seat cushion height.
–


longitudinal seat position.
–


steering wheel height and reach.
–


rear view mirror and door mirrors.

Once these adjustments have been
made, check that the instrument panel
can be viewed correctly from your driving
position.
Front head restraints
Adjusting the height

Upwards:
â–º Pull the head restraint up to the desired
position; you can feel the head restraint clicking
into position.
Downwards:
â–º

Press lug
A to lower the head restraint.
The head restraint is correctly adjusted when its upper edge is level with the top
of the head.
Removing a head restraint
â–º Tilt the backrest to the rear to make it easier
to remove the head restraint.
â–º

Pull the head restraint fully up.
â–º


Press lug
A to release the head restraint and
raise it fully.
â–º

Stow the head restraint securely
.
Refitting a head restraint
â–º Insert the head restraint rods into the guides
in the corresponding seat backrest.
â–º

Push the head restraint fully down.
â–º


Press the lug
A to release the head restraint
and push it down.
â–º

Adjust the height of the head restraint.
Never drive with the head restraints
removed; they should be in place and
adjusted for the occupant of the seat.
Front seats
Before moving the seat backwards,
ensure that there is no person or object
that might prevent the full travel of the seat.
There is a risk of trapping or pinching
passengers if present in the rear seats or of
jamming the seat if large objects are placed
on the floor behind the seat.
Manual adjustments
Longitudinal

41
Ease of use and comfort
3â–º Raise the control bar and slide the seat
forwards or backwards.
â–º

Release the control bar to lock the seat in
position on one of the notches.
Backrest angle

â–º Turn the knob to obtain the desired angle.
Height

â–º Pull the control upwards to raise or push it
downwards to lower , until you obtain the position
required.
Lumbar
(driver only)

â–º Turn the knob to obtain the desired level of
lumbar support.
Electric adjustments
Backrest angle

â–º Tilt the control forwards or rearwards.
Cushion height

â–º Tilt the rear of the control upwards or
downwards to obtain the required height.
Lumbar

â–º Press one of the controls to obtain the
desired lumbar support.
Massage function
This function provides lumbar massage; it only operates when the engine is running as well as
in STOP mode of the Stop & Start system.
Activation/Deactivation
â–º Press this button to activate/deactivate
the function.
Upon activation, the indicator lamp comes on.
The massage function is activated for a period
of one hour
.
During this time, massage is performed in
6

cycles of 10 minutes (6 minutes of massage
followed by a 4-minute break).
After one hour, the function is deactivated; the
indicator lamp goes off.

42
Ease of use and comfort
Heated seats



The function is active only with the engine
running and when the outside temperature is
below 20°C.
â–º
Press the button corresponding to the seat.
â–º


Each press changes the heating level; the
corresponding number of indicator lamps come
on.
â–º


T
o switch off the heating, press the button
until all of the indicator lamps are off.
The system status is memorised when the
ignition is switched off.
Do not use the function when the seat
is not occupied.
Reduce the heating intensity as soon as
possible.
When the seat and passenger compartment
have reached a satisfactory temperature,
switch the function off; reducing electrical
consumption in turn decreases energy
consumption.
Prolonged use of heated seats is not
recommended for people with sensitive
skin.
There is a risk of burns for people whose
perception of heat is impaired (e.g.
illness,
taking medication).
To keep the heated pad intact and to prevent
a short circuit:
–

Do not place heavy or sharp objects on the
seat.
–


Do not kneel or stand on the seat.
–


Do not spill liquids onto the seat.
–


Never use the heating function if the seat
is damp.
Steering wheel
adjustment


â–º When stationary , pull the control to release
the steering wheel.
â–º Adjust the height and reach to suit your
driving position.
â–º

Push the control to lock the steering wheel.
For safety reasons, these adjustments
must only be carried out with the vehicle
stationary.
Heated steering wheel
(Depending on country of sale)
In cold weather, this function heats the circular
part of the steering wheel.
It can be activated when the outside temperature
is below 20°C.




â–º With the engine running, press this button to
activate/deactivate the function (confirmed by the
indicator lamp coming on/going out).
The system is automatically deactivated every
time the engine is switched off.

43
Ease of use and comfort
3Mirrors
Door mirrors
As a safety measure, the mirrors should be adjusted to reduce the "blind spots".
The objects that you see in the mirrors are
in fact closer than they appear. Take this
into account in order to correctly judge the
distance of vehicles approaching from behind.
Adjustment

â–º Move control A to the right or to the left to
select the corresponding mirror.
â–º

Move control
B in any of the four directions
to adjust.
â–º

Return control A

to its central position.
Manual folding
The mirrors can be folded manually (parking
obstruction, narrow garage, etc.).
â–º
T
urn the mirror towards the vehicle.
Electric folding
Depending on equipment, the door mirrors can
be folded electrically.
â–º From the inside, with the
ignition on, place control A
in the
central position.
â–º

Pull control A

backwards.
â–º

Lock the vehicle from the outside.
If the mirrors are folded using control A,
they will not unfold when the vehicle is
unlocked.
Electric unfolding
â–º From outside: unlock the vehicle.
â–º From inside: with the ignition on, place
control
A in the central position and then pull it
rearwards.
The remote-controlled automatic door mirror folding/unfolding function is
configured via the Driving
/ Vehicle touch
screen menu.
Demisting/Defrosting
The demisting/defrosting of the door mirrors works with the demisting/
defrosting of the rear screen.
For more information on Rear screen
demisting/defrosting , refer to the
corresponding section.
Interior rear view mirror
Equipped with an anti-dazzle system, which
darkens the mirror glass and reduces the
nuisance to the driver caused by the sun,
headlamps of other vehicles, etc.
Manual model
Day/night position

â–º Pull the lever to change to the anti-dazzle
"night" position.
â–º

Push the lever to change to the normal "day"
position.
Adjustment
â–º


Adjust the mirror to the normal "day" position.

44
Ease of use and comfort
Automatic "electrochrome" model

The electrochrome system uses a sensor that
detects the level of exterior brightness and that
coming from the rear of the vehicle, in order to
automatically and gradually switch between day
and night usage.
To ensure optimum visibility while manoeuvring, the mirror automatically
brightens when reverse gear is engaged.
The system is deactivated if the load in the
boot exceeds the height of the load space
cover or if the load space cover has items
placed on it.
Rear bench seat
Bench seat with fixed cushions and split folding
backrests (2/3-1/3) to adapt the boot load space.
The rear seat cushion remains fixed. To increase the boot loading volume, tilt the
bench seat backrest.
Rear head restraints

They have two positions:
– A high position , for when the seat is in use:
â–º

Pull the head restraint fully up.
–

A low position , for stowing, when the seat is
not in use: â–º

Press the lug
A to release the head
restraint and push it down.
The rear head restraints can be removed.
Removing a head restraint
â–º Release the backrest using control 1 .
â–º T ilt the backrest slightly forwards.
â–º

Pull the head restraint fully up.
â–º


Press the lug
A to release the head restraint
and remove it completely.
Refitting a head restraint
â–º Insert the head restraint rods into the guides
in the corresponding backrest.
â–º

Push the head restraint fully down.
â–º


Press the lug
A to release the head restraint
and push it down.
Never drive with passengers seated at
the rear when the head restraints are
removed; the head restraints should be in
place and in the high position.
The head restraint for the centre seat
and those for the outer seats are not
interchangeable.
Folding the backrests
Manoeuvring the backrests should only
be done when the vehicle is stationary.
First steps:
â–º

Lower the head restraints.
â–º


If necessary
, move the front seats forward.
â–º

Check
that no person or object might interfere
with the folding of the backrests (e.g.
clothing,
luggage).


â–º Press the backrest release grip 1 .

45
Ease of use and comfort
3â–º Guide the backrest 2 down to the horizontal
position.
When the backrest is released, the red
indicator in the release grip is visible.
Repositioning the backrests
First check that the outer seat belts are
lying vertically flat alongside the backrest
latching rings.


â–º Put the backrest 2 in the upright position and
push it firmly to latch it home.
â–º

Check that the red indicator is no longer
visible in the release grip 1

.
â–º

Ensure that the outer seat belts were not
trapped during the operation.
Please note: an incorrectly latched
backrest compromises the safety of
passengers in the event of sudden braking or
an accident.
The contents of the boot may be thrown
forwards - risk of serious injury!
Heated seats

The control knobs for each side seat are located
at the rear of the centre console.
â–º

T
urn the corresponding knob to switch on and
select a setting: •

0 = off.
•


1 = low
.
•

2 = medium.
•


3 = high.
The function is active only with the engine
running and when the outside temperature is
below 20°C.
Do not use the function when the seat
is not occupied.
Reduce the heating intensity as soon as
possible.
When the seat and passenger compartment
have reached a satisfactory temperature,
switch the function off; reducing electrical
consumption in turn decreases energy
consumption.
Prolonged use of heated seats is not
recommended for people with sensitive
skin.
There is a risk of burns for people whose
perception of heat is impaired (e.g.
illness,
taking medication).
To keep the heated pad intact and to prevent
a short circuit:
–

Do not place heavy or sharp objects on the
seat.
–


Do not kneel or stand on the seat.
–


Do not spill liquids onto the seat.
–


Never use the heating function if the seat
is damp.
Heating and Ventilation
Air intake
The air circulating in the passenger compartment
is filtered and originates either from the
exterior, via the grille located at the base of the

46
Ease of use and comfort
windscreen, or from the inside in air recirculation
mode.
Controls
Depending on version, the controls are
accessible in the Climate touch screen menu
or are grouped together on the centre console
panel.
Air distribution

1. Windscreen demisting/de-icing vents
2. Front side window demisting/de-icing vents
3. Adjustable and closable side air vents
4. Adjustable and closable central air vents
5. Air outlets to the front footwells
6. Air outlets to the rear footwells
7. Adjustable and closable air vents
Advice
Using the ventilation and air
conditioning system
â–º

T

o ensure that air is distributed evenly,
keep the external air intake grilles at the base
of the windscreen, the nozzles, the vents, the
air outlets and the air extractor in the boot
free from obstructions.
â–º

Do not cover the sunshine sensor located
on the dashboard; this sensor is used to
regulate the automatic air conditioning
system.
â–º


Operate the air conditioning system for at
least 5 to 10 minutes once or twice a month to
keep it in good working order

.
â–º

If the system does not produce cold air
,
switch it off and contact a CITROËN dealer or
a qualified workshop.
When towing a large load on a steep gradient
in high temperatures, switching off the air
conditioning increases the available engine
power, enhancing the towing capacity.
Avoid driving for too long with the ventilation off or with prolonged operation
of interior air recirculation. Risk of misting and
deterioration of the air quality!
If the interior temperature is very high
after the vehicle has stood for a long
time in the sunshine, air the passenger
compartment for a few moments.
Put the air flow control at a setting high
enough to quickly change the air in the
passenger compartment.
Condensation created by the air
conditioning results in a discharge of
water underneath the vehicle. This is perfectly
normal.
Servicing the ventilation and air
conditioning system
â–º

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.
â–º

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.

47
Ease of use and comfort
3For 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
â–º Turn the knob 1 from blue (cold) to red (hot).
Air flow adjustment
â–º 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
â–º

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.
â–º

Press knob
1 to turn the air conditioning on/
off.
When the system is activated, the indicator lamp
comes on.
Air conditioning does not operate when the air flow is disabled.
To obtain cool air more quickly, enable interior
air recirculation for a brief period. Then return
to the intake of exterior air.
Switching off the air conditioning may result in
some discomfort (humidity or misting).
Switching the system off
â–º Press knob 2; all the indicator lamps of the
system go out.
This action deactivates all of the functions of the
air conditioning system.
The temperature is no longer regulated. A slight
flow of air can still be felt, due to the forward
movement of the vehicle.
Dual-zone automatic air
conditioning
This system automatically controls the activation
of the air conditioning system, regulating the
temperature, air flow and air distribution inside
the passenger compartment.

48
Ease of use and comfort
To adjust the system, use the central controls
or press the button in the Climate menu on the
touch screen to display the controls page.


Central controls



Touch screen
1. Left-hand side temperature
adjustment
Air conditioning on/off (central controls) 2.
Right-hand side temperature
adjustment
Maximum air conditioning (central controls)
3. Adjusting the air flow
Automatic Comfort programme (central
controls)
4. Interior air recirculation
5. Automatic V
isibility programme
6. Rear screen demisting/de-icing
7. Direct access to the Climate menu
8. Adjusting the air distribution
9. Air conditioning on/off
10. Automatic Comfort programme
11 . Mono-zone/Dual-zone
12. Access to the secondary page
13. Temperature conditioning (depending on
version)
14. Selection of setting for the Automatic
Comfort programme (Soft/Normal/Fast).
This system works with the engine running but
access to the ventilation and its controls remains
possible with the ignition on.
Adjusting the temperature
The driver and front passenger can each choose
their own temperature setting.
The value indicated corresponds to a level of
comfort and not to a precise temperature.
â–º

T
urn the knob 1 or 2 or press one of the
buttons 1 or 2 on the touch screen to increase
(red) or decrease (blue) the value.
It is recommended that you avoid a difference of
more than 3°C in the settings for left and right.
Automatic Comfort programme
This automatic mode ensures optimum
management of the passenger compartment
temperature, air flow and air distribution, based
on the selected comfort level.
â–º

Press knob
3 on the central controls or button
10 on the touch screen to activate/deactivate the
air conditioning system's automatic mode.
The indicator lamp in the button lights up
when the air conditioning system is operating
automatically.
You can adjust the intensity of the
automatic Comfort programme by using the
"OPTIONS "
button to select one of the available
settings:
–
"Soft": provides soft and quiet operation by
limiting air flow.
–
"Normal": offers the best compromise
between a comfortable temperature and quiet
operation (default setting).
–
"Fast": provides strong and effective air flow.
To change the current setting (shown by the
corresponding indicator lamp), press button

14

repeatedly until the desired setting is displayed.
To ensure passenger comfort in the rear seats,
favour "Normal" and "Fast" settings.
This setting is associated with automatic mode
only. However, on deactivation of
AUTO mode,
the indicator lamp for the most recently selected
setting remains on.