2023 CITROEN DS4 cooling

14
Warning/indicator lampStateCause Action/Observations
STOP Fixed, alone or
associated with
another warning
lamp, accompanied
by an audible signal
and a message in the
screen. Illumination of this warning lamp is
associated with a serious fault with
the braking system, power steering,
engine lubrication system or cooling
system.
Stop as soon as it is safe to do so as there is a risk
that the engine will cut out while driving.
Park, switch off the ignition and call the dealer network
or a qualified workshop.
Maximum
coolant
temperature Fixed.
The temperature of the cooling
system is too high. You must stop as soon as it is safe to do so.
Wait until the engine has cooled down before
topping up the level, if necessary.
If the problem persists, contact the dealer network or
a


qualified workshop.
Engine oil
pressure Fixed.
There is a fault with the engine oil
lubrication circuit. You must stop as soon as it is safe to do so.
Park, switch off the ignition and contact the dealer
network or a qualified workshop.
Seat belt not
fastened/
unfastened *Fixed, then flashing,
accompanied by an
increasing audible
signal. The driver or front passenger has
not fastened or has unfastened their
seat belt.
At least one rear passenger has
unfastened their seat belt. Pull on the belt in question and insert the tongue in the
buckle.
This warning repeats the seat belt information given by
the roof console warning lamps.
*

D
epending on the country of sale.
01
Instruments

75
In cold weather and when the engine
is cold, the air flow will gradually reach
its optimum level, taking account of the
weather and the desired comfort level so
as to avoid distributing too much cold air.
On entering the vehicle, if the interior
temperature is much colder or warmer
than the comfort value, there is no need
to change the value displayed in order to
obtain the desired comfort. The system
corrects the difference in temperature
automatically and as quickly as possible.
Temperature adjustment on driver/
passenger side
The driver and front passenger can each set
the temperature to suit their requirements.
The value shown on the display is a level
of comfort, not a temperature in Celsius or
Fahrenheit.F

T
urn the dial to the left to lower
the value and to the right to
raise it. A setting around the value 21 provides
optimum comfort. However, depending on your
requirements, a setting between 18 and 24 is
normal.
It is also recommended to avoid a left /right
setting difference of more than 3.
Automatic visibility programme
For more information on Front
demist - defrost
, refer to the
corresponding section.
With Stop & Start, when demisting/
defrosting has been activated, STOP
mode is not available.
Manual control
If you wish, you can make a different choice
from that offered by the system by changing
a setting. The " AUTO" button indicator lamps
go off; the other functions will continue to be
managed automatically.
F

P
ressing the "AUTO" button
returns the system to full
automatic operation. For maximum cooling or heating of the
passenger compartment, it is possible
to exceed the minimum value 14 or the
maximum value 28.
F
T
urn the dial to the left
until " LO" is displayed or
to the right until " HI" is
displayed.
Air conditioning on/off
F Press this button to switch off the air conditioning.
Switching the system off could result in
discomfort (humidity, condensation). F

P
ress this button again to
return to automatic operation
of the air conditioning. The
indicator lamp in the " A/C"
button comes on.
03
Ease of use and comfort

133
In case of towing
Driving with a trailer places greater
demands on the towing vehicle and
requires extra care from the driver.
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 performance. The maximum
towed load must be reduced by 10% for every
1,000 metres of altitude.
For more information on the Technical
data of your vehicle and particularly on
towable loads, refer to the corresponding
section.
If the exterior temperature is high, it is
recommended that the engine be allowed
to idle for 1 to 2 minutes after the vehicle
comes to a stop, to facilitate its cooling.
Side wind
F Take into account the increased sensitivity to 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 towed load on a long incline
depends on the gradient and the exterior
temperature.
In all cases, keep a check on the coolant
temperature.
F

I
f this warning lamp and the
STOP warning lamp come on,
stop the vehicle and switch off
the engine as soon as possible.
Braking
Towing a trailer increases the braking distance.
To avoid overheating of the brakes, the use of
engine braking is recommended.
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 electrical lighting and signalling on the trailer and the headlamp beam height
of your vehicle.
For more information on Headlamp
adjustment , refer to the corresponding
section.
The rear parking sensors will be
deactivated automatically to avoid
the audible signal if a genuine DS
AUTOMOBILES towbar is used.
06
Driving

170
Very cold climate screen
(Depending on the country of sale.)
Removable protective screen which prevents
the accumulation of snow at the radiator
cooling fan.
Fitting
F Position the very cold climate screen to the front of the lower section of the front
b u m p e r.
F

P
ress around its edge to engage its fixing
clips one by one.
Removing
F Use a screwdriver as a lever to release each fixing clip.
The very cold climate screen must be
removed when:
-

t
he exterior temperature exceeds
10°C,
-
w

hen towing,
-

a
t speeds above 75 mph (120 km/h).
To w b a r
Your vehicle is primarily designed for
transporting people and luggage, but it may
also be used for towing a trailer.We recommend the use of genuine
DS AUTOMOBILES towbars and their
harnesses that have been tested and
approved from the design stage of your
vehicle, and that the fitting of the towbar
is entrusted to a dealer or a qualified
workshop.
If the towbar is not fitted by a dealer, it
must still be fitted in accordance with the
vehicle manufacturer's instructions. Driving with a trailer places greater
demands on the towing vehicle and the
driver must take particular care.
For more information on Driving advice
,
particularly when towing, refer to the
corresponding section.
Obser ve the maximum authorised towable
weight, indicated on your vehicle's
registration certificate, the manufacturer's
label as well as in the Technical data
section of this guide.
Complying with the maximum
authorised nose weight (towball)
also includes the use of accessories
(bicycle carriers, tow boxes, etc.).
The maximum authorised nose weight
does not depend on the type of device
installed, fixed or removable, with or
without a tool.
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Practical information

177
Maximum authorised load distributed
over the roof bars, for a load height not
exceeding 40 cm (with the exception of
bicycle carriers):
-
f
or roof bars with 90 mm pads: 50 kg ,
-

f
or roof bars with 15 0 mm pads: 80 kg.
For more information, contact the dealer
network or a qualified workshop.
If the height exceeds 40 cm, adapt the
speed of the vehicle to the profile of the
road to avoid damaging the roof bars and
the mountings on the vehicle.
Please refer to local legislation in order
to comply with the regulations related to
transporting objects which are longer than
the vehicle.
Bonnet
The cooling fan may star t after
switching off the engine: take care
with articles and clothing that might be
caught by the fan blades.
Opening
F Open the left-hand front door.
F
P
ull the interior bonnet release lever A ,
located at the bottom of the door aperture. F

P
ush the exterior safety catch B to the left
and raise the bonnet.
F
U
nclip the stay C from its housing on the
back of the bonnet.
F

F
ix the stay in the slot to hold the bonnet
open.
Before doing anything under the bonnet,
deactivate the Stop & Start system to
avoid the risk of injury related to an
automatic change to START mode.
07
Practical information

179
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 the dealer
network 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.
Return used oil to the dealer network 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.
To ensure that the reading is correct, your
vehicle must be parked on a level sur face
with the engine stopped for more than
30


minutes.
It is normal to top up the oil level between two
ser vices (or oil changes). We recommend that
you check the level, and top up if necessary,
every 3,000 miles (5,000 km).
Checking using the dipstick
The location of the dipstick is shown in the
corresponding underbonnet layout view.
F
T
ake the dipstick by its coloured grip and
pull it out completely. A = MA X
B = MIN
If you find that the level is above the A mark or
below the B mark, do not star t the engine.
-
I
f the level is above the MAX
mark (risk of
damage to the engine), contact the dealer
network or a qualified workshop.
-
I
f the level is below the MIN
mark, you must
top up the engine oil.
Oil grade
Before topping up the oil or changing the oil,
check that the oil is the correct grade for your
engine and conforms to the manufacturer's
recommendations. F
W
ipe the end of the dipstick using a clean
non-fluffy cloth.
F
R
efit the dipstick and push fully down, then
pull it out again to make the visual check:
the correct level is between marks A and B .
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Practical information

180
Topping up the engine oil level
F Locate the oil filler cap in the engine compartment of your vehicle.
For more information about petrol or Diesel
engine, refer to the corresponding section.
F

U
nscrew the oil filler cap to access the filler
opening.
F

A
dd oil in small quantities, avoiding any
spills on engine components (risk of fire).
F

W
ait a few minutes before checking the
level again using the dipstick.
F

A
dd more oil if necessary.
F

A
fter checking the level, carefully refit the oil
filler cap and the dipstick in its tube.
After topping up the oil, the ignition-triggered oil
level indicator in the instrument panel does not
provide a valid information during 30 minutes.
Engine oil change
Refer to the manufacturer's service schedule
for inter val details for this operation.
In order to maintain the reliability of the engine
and emission control system, never use
additives in the engine oil.
Brake fluid level
The brake fluid level should be close
to the "MA X" mark. If it is not, check
the brake pad wear.
Changing the coolant
Refer to the manufacturer's service schedule
for details of the inter val for this operation.
Fluid specification
This fluid must conform to the manufacturer's
recommendations.
Power steering fluid level
The fluid level should be close to
the "MA X" mark. Verify this, with the
engine off, by reading the level on
the filler neck.
Coolant level
Check the coolant level regularly.
It is normal to top up the fluid
between two services. To ensure that the reading is correct, your
vehicle must be parked on a level sur face with
the engine cool.
The coolant level should be close to the "MA X"
mark but should never exceed it.
If the level is close to or below the "MIN" mark,
it is essential to top up.
A low coolant level presents a risk of serious
damage to your engine.
When the engine is warm, the temperature of
the coolant is regulated by the fan.
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 the risk of scalding when you need to
top up in an emergency, place 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 the level.
The cooling fan may star t after
switching off the engine: take care
with articles and clothing that might be
caught by the fan blades.
Fluid specification
The brake fluid must conform to the
manufacturer's recommendations.
07
Practical information