2018 CITROEN DS4 headlamp

172
During use
Never release the locking system with a
trailer or load carrier on the towball.
Never exceed the gross train weight
(GTW) for the vehicle.
Before setting off, check the adjustment of
the headlamp beam height.
For more information on adjusting the
headlamp beam height, refer to the
corresponding section.
After use
For journeys made without a trailer or
load carrier, the trailer socket must be
folded away, the towball removed and the
protective plug inserted in the carrier. This
measure applies particularly if the towball
could hinder visibility of the number plate
or lighting.Fitting the towball
F Remove the protective plug from the carrier and check the condition of the fixing system.
If necessary, clean the carrier with a brush
or a clean cloth.
F

T
ake the towball from the storage bag.
F

R
emove the protective cover from the ball
and the protective cap from the locking
wheel.
F

S
tow the plug, cover and cap in the storage
bag.
F

C
heck that the towball is unlocked (position
B ). If not, insert the key in the lock and
turn the key anti-clockwise to unlock the
mechanism. F

T
ake the towball in both hands; insert the
end of the towball into the carrier by lifting it,
then, to ensure that it has correctly locked in
place, pull firmly down on the ball end of the
towball.
The locking wheel then automatically rotates
anti-clockwise with an audible "click". Take
care to keep your hands clear.
F

C
heck that the towball has correctly locked
in place (position A ).
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Practical information

175
Load reduction mode
System which manages the use of certain
functions according to the level of charge
remaining in the battery.
When the vehicle is being driven, the load
reduction function temporarily deactivates
certain functions, such as air conditioning,
heated rear screen...
The deactivated functions are reactivated
automatically as soon as conditions permit.
Energy saving mode
System that manages the duration of use of
certain functions to conser ve a sufficient level
of charge in the battery.
After the engine has stopped, you can
still use functions such as the audio
equipment, windscreen wipers, dipped
beam headlamps,
courtesy lamps, etc. for a
maximum combined period of thirty minutes.
This period may be greatly reduced if the
battery is not fully charged.
Switching to this mode
Once this period has elapsed, a message
appears in the screen indicating that the
vehicle has switched to the energy saving
mode and the active functions are put on
st a n d by.If the telephone was operated via
the touch screen at that moment, the
connection would be interrupted after
10


minutes.
Exiting the mode
These functions will be automatically restored
the next time the vehicle is used.
F
I
n order to restore the use of these functions
immediately, start the engine and let it run
for a few minutes.
The time available to you will then be double
the period for which the engine is left running.
However, this period will always be between
five and thirty minutes.
The engine will not start if the battery is
discharged.
For more information on the 12 V batter y ,
refer to the corresponding section.
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Practical information

178
The location of the interior bonnet release
lever prevents opening of the bonnet when
the left-hand front door is shut.
Do not open the bonnet when there is a
very strong wind.
When the engine is hot, handle the
exterior safety catch and the stay with
care (risk of burns).
Closing
F Take the stay out of the support slot.
F C lip the stay in its housing on the back of
the bonnet.
F

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

P
ull on the bonnet to check that it is fully
latched.
Because of the presence of electrical
equipment under the bonnet, it is
recommended that exposure to water
(rain, washing, etc.) be limited.
Engines
Petrol
Diesel
These engines are examples provided as a
guide.
The locations of the following elements may
vary:
-

A
ir filter.
-

E
ngine oil dipstick.
-

E
ngine oil filler cap.
-
P

riming pump. 1.
Power steering fluid reservoir.
2. Screenwash and headlamp wash
reservoir.
3. Engine coolant reservoir.
4. Brake fluid tank.
5. Battery/Fuses.
6. Fusebox.
7. Remote earth point.
8. A i r f i l t e r.
9. Engine oil dipstick.
10. Engine oil filler cap.
11. Priming pump*
The Diesel circuit is under very high
pressure.
All work on this circuit must be carried out
only in the dealer network or a qualified
workshop.
*
D
epending on engine.
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Practical information

181
Screenwash/headlamp wash
level
To check the level or top up the fluid
on vehicles fitted with headlamp
washers, immobilise the vehicle and
switch off the engine.
F

O

pen the bonnet and secure it with the stay.
F

O

pen the screenwash reservoir filler cap.
F

T

ake and pinch the level gauge to block its
breather.
F

R

emove the gauge completely from the
reser voir to read the level in the transparent
section.
F

T

op up if necessary.
F

R

efit the filler cap to the reser voir and close
the bonnet.
Fluid specifications
For optimum cleaning and to avoid freezing,
this fluid must not be topped up or replaced
with plain water.
In wintry conditions, using an ethyl alcohol or
methanol based fluid is recommended.
Diesel fuel additive level
(Diesel with particle filter)
According to your version of instrument panel,
the additive reser voir low level is indicated by:
Topping up
This additive must be topped up without
delay by a member of the dealer network or a
qualified workshop. -

f
ixed illumination of the
particle filter warning lamp,
accompanied by an audible
signal and a message that the
particle filter additive level is too
low,
or
-
f
ixed illumination of the Ser vice
warning lamp, accompanied
by an audible signal and a
message that the particle filter
additive level is too low.
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 the dealer
network or a qualified workshop.
12 V battery
The battery does not require any
maintenance.
However, 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 starting 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 in the dealer network or a qualified
workshop.
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Practical information

198
Changing a bulb
The headlamps have polycarbonate
lenses with a protective coating:
F
d
o not clean them using a dr y or
abrasive cloth, nor with a detergent
or solvent product,
F

u
se a sponge and soapy water or a pH
neutral product,
F

w
hen using a high pressure washer
on persistent marks, do not keep the
lance directed towards the lamps or
their edges for too long, so as not to
damage their protective coating and
seals.
Changing a bulb must only be done with
the ignition off and after the headlamp has
been switched off for several minutes –
Risk of serious burns!
F

D
o not touch the bulb directly with your
fingers, use a lint-free cloth.
It is essential only to use anti-ultraviolet
(UV) type bulbs, so as not to damage the
headlamp.
Always replace a failed bulb with a new
bulb with the same type and specification. In some weather conditions (e.g. low
temperature or humidity), the presence
of misting on the internal sur face of the
glass of the headlamps and rear lamps is
normal; it disappears after the lamps have
been on for a few minutes.
Light-emitting diodes (LED)
For the replacement of this type of lamp,
contact the dealer network or a qualified
workshop.
A LED (light-emitting diode) replacement
kit is available from the dealer network.
For bulbs with lugs, type H1, H7... take
care to position them correctly to ensure
the best lighting.
Risk of electrocution
Xenon bulbs (D1S) must be replaced
in the dealer network or by a qualified
workshop.
Front lamps
With xenon and full LED directional
lamps
1.
Daytime running lamps/sidelamps (LED).
2. Directional main beam/dipped beam
headlamps (D1S).
3. Direction indicators (LED).
4. Directional front foglamps (LED).
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In the event of a breakdown

199
With halogen headlamps (type 1)
1.Direction indicators (H21 clear).
2. Dipped beam headlamps (H7).
3. Main beam headlamps (H1).
4. Daytime running lamps/sidelamps
(P 21/5 W X L).
5. Foglamps (H11).
With halogen lamps and LED light
signature (type 2)
(LED: light-emitting diodes.)
1. Direction indicators (LED).
2. Daytime running lamps/sidelamps
(LEDs).
3. Dipped beam headlamps (H7).
4. Main beam headlamps (H7).
5. Foglamps (H11).
Access to bulbs
Depending on the engine and only on the left-
hand side, you must first carry out the following
operations for access to the protective covers
on the bulbs.
F

R
emove the air deflector by unclipping each
of its three attachment points.
F

U
nclip the bonnet release cable at its two
fixings.
F

M
ove the cable down.
After changing the failed bulb, remember to
put everything back in place (cable and air
deflector).
08
In the event of a breakdown

200
Direction indicators
Quicker flashing of the direction indicator
lamp (left or right) indicates that one of
the bulbs on the corresponding side has
failed.
Model with halogen headlamps (type 1)
F

T
urn the bulb holder a quarter turn and pull
it out.
F

P
ull out the bulb and replace it.
To reassemble, proceed in reverse order. Model with halogen headlamps (type 2) and
model with xenon headlamps
For the replacement of this type of LED lamp,
contact the dealer network or a qualified
workshop.
Amber colour bulbs, such as the direction
indicators, must be replaced by bulbs with
identical colour and specifications.
To refit, close the protective cover very
carefully to guarantee the leak-tightness
of the lamp. F

D
isconnect the connector.
F

S
pread the springs to release the bulb.
F

P
ull the bulb out and change it.
To refit, carry out these operations in reverse
o r d e r.
Dipped beam headlamp bulbs (with
halogen headlamps)
F Remove the protective cover by pulling the tab.
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In the event of a breakdown

201
Main beam headlamp bulbs (with
halogen headlamps type 1)
F Remove the protective cover by pulling the tab.
F

D
isconnect the connector.
F

S
queeze the springs to release the bulb.
F

P
ull the bulb out and change it.
To refit, carry out these operations in reverse
o r d e r.
Main beam headlamp bulbs (with
halogen headlamps type 2)
F Remove the protective cover by pulling the tab.
F

D
isconnect the connector.
F

P
ull the bulb out and change it.
To refit, carry out these operations in reverse
o r d e r.
Daytime running lamp/sidelamp bulbs
(with halogen headlamps type 1)
Daytime running lamp/sidelamp bulbs
(with halogen headlamps type 2)
For the replacement of this type of LED lamp,
contact the dealer network or a qualified
workshop. F
R
emove the protective cover by pulling the
tab.
F
D
isconnect the connector.
F
T
urn the bulb holder a quarter turn and
remove it.
F
P
ull out the bulb and replace it.
To reassemble, proceed in reverse order.
08
In the event of a breakdown