2021 CITROEN C4 AIRCROSS cooling

26
Screen 1 Screen 2Cause Solution - ActionObservations
Fault in the steering column. You must stop as soon as it is safe
to do so.Contact a CITROËN dealer or a
qualified workshop.
Fault with the electrical system. Stop the vehicle and contact a CITROËN dealer or a qualified
workshop.
The cooling system temperature is
too high. Wait for the engine to cool down
before topping up, if necessary.
If the problem persists, contact
a CITROËN dealer or a qualified
workshop.You must stop as soon as it is safe
to do so.
The temperature of the CVT
transmission fluid is too high. Stop the vehicle and contact a
CITROËN dealer or a qualified
workshop.
The driver has not fastened or has
unfastened their seat belt. Fasten your seat belt.
There is a continuous audible signal
if you drive without fastening your
seat belt.
Malfunction of the fuel system. Contact a CITROËN dealer or a qualified workshop.
Monitoring

35
When the engine is
running, this indicates the
temperature of the coolant.
Range
When the engine is
running, this indicates
the distance which can
still be travelled with the
fuel remaining in the tank
based on the average
fuel consumption over the
last few miles/kilometres
travelled. This value may vary following a change
in the style of driving or the relief,
resulting in a large variation in the
current fuel consumption.
If you only add a few litres, the value
displayed will be incorrect. Therefore,
you must fill the tank whenever
possible.
Coolant temperature
gauge
If the bar is close to the critical
position located
on the right, the temperature is too high.
The symbol flashes when your engine is
overheating.
You must stop your vehicle as soon as it is
safe to do so.
Wait a few minutes before switching off the
engine. When the range is less than 30 miles (50 km)
,
dashes are displayed.
Refuel as soon as possible. The display of the
range is updated.
Wait for the engine to cool before
topping up the level. The cooling system
is pressurised.
To avoid any risk of scalding, unscrew
the cap by two turns to allow the
pressure to drop.
When the pressure has dropped,
remove the cap and top up the level,
if
necessary.
Contact a CITROËN dealer or a
qualified workshop. When you disconnect the battery,
the previous fuel consumption data
is lost and the value displayed will be
different from that displayed before the
battery was disconnected. The distance
displayed must be considered an
approximate indication.
1
Monitoring

80
Ventilation
Air intake
The air circulating in the passenger compartment
is filtered and originates either from the outside via
the grille located at the base of the windscreen or
from the inside in air recirculation mode.
Air treatment
The incoming air follows various routes
depending on the controls selected by the
driver:
-
d
irect arrival in the passenger
compartment (air intake),
-

p
assage through a heating circuit (heating),
-

p
assage through a cooling circuit (air
conditioning).
Control panel
The controls of this system are grouped
together on control panel A on the centre
console. 1. W
indscreen demisting-defrosting vents.
2. F ront side window demisting-defrosting
vents.
3.
S

ide adjustable air vents.
4.
C

entral adjustable air vents.5. A
ir outlets to the front footwells.
6. A ir outlets to the rear footwells.
7.
T

emperature sensor.
8.
S

unshine / rain sensor.
Air distribution
Comfort

84
Automatic air conditioning
1. Temperature adjustment
2. Air flow adjustment
3.
A

ir distribution adjustment
4.
I

ntake of exterior air / Recirculation of
interior air
5.
A

ir conditioning On / OffAutomatic operation
F Set the temperature control dial 1 to the temperature required.
F

P
lace the air flow control dial 2 in
the
"AUTO" position.
F

P
lace the air distribution adjustment dial 3
in the "AUTO" position. When the engine is cold, to avoid an
excessive distribution of cold air, the
ventilation will reach its optimum level
gradually.
On entering the vehicle, the interior
temperature may be much colder
(or warmer) than the temperature
setting. There is no need to change the
temperature setting in order to reach
the comfort required rapidly.
The automatic regulation of the air
conditioning will operate to correct the
temperature difference as quickly as
possible.
In automatic mode:
F

w
hen the temperature is set to maximum
(Rapid heating), the intake of exterior air is
activated and the air conditioning stops.
F
w
hen the temperature is set to minimum
(Rapid cooling), air recirculation is
activated and the air conditioning operates.
The system controls the air distribution, the
flow, the temperature and the air intake to
ensure the level of comfort selected and
adequate air circulation in the passenger
compartment. No further action on your part is
required.
Comfort

202
Driving advice
Distribution of loads
F Distribute the load in the trailer so that the heaviest items are as close as possible to
the axle and the nose weight approaches the
maximum permitted without exceeding it.
Air density decreases with altitude, thus
reducing engine per formance. Above
1
000 metres, the maximum towing load must
be reduced by 10
% of the GTW and so on for
every 1
000 metres of altitude.
Refer to the "Technical Data" section for details
of the weights and towing loads which apply to
your vehicle.
Side wind
F Take into account the increased sensitivity to side wind.
Cooling
Towing a trailer on a slope increases the
temperature of the coolant.
As the fan is electrically controlled, its cooling
capacity is not dependent on the engine speed.
F

T
o lower the engine speed, reduce your
speed.
The maximum towing load on a long slope
depends on the gradient and the outside
temperature.
In all cases, pay attention to the coolant
temperature.
F

I
f this message is displayed, stop your
vehicle as soon as it is safe to do so.
Braking
Towing a trailer increases the braking distance.
Ty r e s
F Check the tyre pressures of the towing vehicle and of the trailer, observing the
recommended pressures.
Lighting
F Check the lighting and signalling on the trailer.
If the message flashes slowly, wait for the
engine to cool before topping up the level, if
necessary.
If the message flashes rapidly, contact a
CITROËN dealer or a qualified workshop
without delay.
Practical information

207
bonnet
F Open the right hand front door.
F P ull the interior bonnet release lever A ,
located at the bottom of the door aperture. Do not open the bonnet in high winds.
When the engine is hot, handle the
exterior safety catch and the bonnet
stay with care (risk of burns).
F
U
nclip the stay C from its housing on the
back of the bonnet.
F

F
ix the stay in the notch to hold the bonnet
open.ClosingF Take the stay out of the support notch.
F C lip the stay in its housing on the back of
the bonnet.
F

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

P
ull on the bonnet to check that it is
secured correctly. The location of the interior bonnet
release lever prevents opening of the
bonnet while the right hand front door
is closed.
Opening
F Push the exterior safety catch B to the left
and raise the bonnet. This message appears in the instrument panel
screen if the bonnet is not fully closed.
The cooling fan may star t after
switching off the engine: take care
with articles and clothing that might
become caught by the fan blades.
be

cause of the presence of electrical
equipment under the bonnet, it is
recommended that exposure to water
(rain, washing, ...) be limited.
8
Checks

213
Checking levels
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).
Oil level
The check of the the level is done
out with the dipstick, located under
the bonnet. Refer to the description
of your engine compartment for the
position of the dipstick.Engine oil change
Refer to the maintenance and warranty guide
for details of the interval for this operation.
In order to maintain the reliability of the engine
and emission control system, never use
additives in the engine oil.
Oil specification
The oil must be the correct grade for your
engine and conform to the manufacturer's
recommendations.
Check all of these levels regularly, in line with the maintenance and warranty guide. 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.
Dipstick
There are two marks on the dipstick:
A = maximum
If the level is above this
mark, contact a CITROËN
dealer or a qualified
workshop.
B = minimum
Top up the level through the
oil filler orifice, using the
correct grade of oil for your
engine. The level must never
be below this mark.
This check will only be correct if the vehicle is
on level ground and the engine has been off for
more than 30 minutes.
It is normal to top up the oil level between
two services (or oil changes). CITROËN
recommends that you check the level, and top
up if necessary, every 3 000 miles (5 000 km).
After topping up the oil, the check when
switching on the ignition with the oil level
indicator in the instrument panel is not valid
during the 30 minutes after topping up.
8
Checks

214
Coolant level
The coolant level should be between
the two marks.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 any risk of scalding, unscrew the cap
by two turns to allow the pressure to drop.
When the pressure has dropped, remove the
cap and top up the level.
Fluid specification
The coolant must conform to the
manufacturer's recommendations.
The brake fluid level should be close
to the "MA X" mark. If it is not, check
the brake pad wear.
Brake fluid level
Changing the fluid
Refer to the maintenance and warranty guide
for details of the interval for this operation.
Fluid specification
The brake fluid must conform to the
manufacturer's recommendations and meet
the
DOT3 or DOT4 standard.
The cooling fan may star t after switching
off the engine: take care with ar ticles and
clothing that might become caught by the
fan blades. When the engine is warm, the temperature of
the coolant is regulated by the fan.
Checks