2010 CITROEN DS4 headlamp

135
Directional lighting
When the dipped or main beam headlamps
are on, this function, allows the light beams to
better follow the road.
The use of this function, coupled with the
xenon headlamps and the cornering lighting,
considerably improves the quality of your
lighting round bends.This function is inactive:
-

w
hen stationary or at low speeds,
-
w
hen reverse is engaged.
The system is activated by default.
Wi
th directional lighting
Wi
thout directional lighting
Programming
The system is activated or
deactivated in the vehicle
configuration menu.
The state of the system stays in memory on
switching off the ignition.
Contact a CITROËN dealer or a qualified
workshop.
Operating fault
If a fault occurs, this warning lamp
flashes in the instrument panel,
accompanied by a message in the
screen.
04
Lighting and visibility

139
Windscreen and headlamp wash
F Pull the windscreen wiper stalk towards you. The windscreen wash then the
windscreen wipers operate for a fixed
period.
It operates only when the headlamps are off or
the vehicle is stationary.
Low screenwash / headlamp wash
fluid level
On vehicle fitted with headlamp washers, the
low level of this fluid is indicated by gauge in
the reservoir filler neck under the bonnet.
Checking and topping up this fluid can should
be done with the engine off.
The level of this fluid should be
checked regularly, particularly during
w i n t e r.
For more information on Checking the levels
and in particular the screenwash / headlamp
wash, refer to the corresponding section.
Associated with the windscreen wash, the
headlamp washers operate with the vehicle
moving, when the dipped or main beam
headlamps are on
.
To reduce the consumption of the fluid
by the headlamp washers, they operate
only with every seventh use of the
screenwash or every 25 miles (40 km)
during a given journey.
Windscreen wash Headlamp wash
04
Lighting and visibility

185
When towing
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 towed load must
be reduced by 10
% for every 1 000 metres of
altitude.
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 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 the 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 Adjusting the
headlamp beam height , refer to the
corresponding section.
For more information on Weights
, refer
to the corresponding section.
The rear parking sensors will be
deactivated automatically to avoid the
audible signal if a genuine CITROËN
towbar is used.
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.
06
Driving

188
Key left in the "Ignition on"
position
If the key has been left in the ignition switch
at position 2 (Ignition on), the ignition will
be switched off automatically after one hour.
To switch the ignition back on, turn the
key to position 1 (Stop) , then back to
position
2

(Ignition on) .
F Stop the vehicle.
F
W ith the engine running at idle, turn the key
to position 1 .
F

R
emove the key from the ignition switch.
F

T
o lock the steering column, turn the
steering until it locks.
Switching off the engine
To facilitate unlocking of the steering
column, it is recommended that the
wheels be returned to the straight ahead
position before switching off the engine. When you leave the vehicle, keep the
key with you and lock the vehicle.
For more information on Energy
economy mode
, refer to the
corresponding section.
Never switch off the ignition before the
vehicle is at a complete stop. With the
engine off, the braking and steering
assistance systems are also cut off:
risk of loss of control of the vehicle.Energy economy mode
After switching off the engine (position 1- Stop
),
for a maximum of 30 minutes you can still use
functions such as the audio and telematic
system, the wipers, dipped beam headlamps,
courtesy lamps, ...
F

C

heck that the parking brake is correctly
applied, particularly on sloping ground.
06
Driving

234
Before each use
Check that the towball is correctly fitted by verifying the following points:
- t he towball is correctly locked in place (position A ),
-

t
he security key lock is on and the key removed; the locking wheel can no longer be
operated,
-

t
he towball must no longer move at all in its carrier; try to shake it by hand.
During use
Never unlock the device when a trailer or load carrier is fitted to the towball.
Never exceed the maximum authorised weight for the vehicle plus trailer (Gross Train
Weight - GTW).
Before driving, check the adjustment of the headlamp beam height.
For more information on Adjusting the headlamps , refer to the corresponding section.
After use
For journeys made without a trailer or load carrier, the trailer harness socket must be folded
away, the towball removed and
the blanking plug inserted in the carrier. This measure
applies particularly if the towball could hinder visibility of the number plate or lighting.
Fitting the towball
Remove the protective plug from the carrier
and check the condition of the fixing system.
If necessary, clean the carrier with a brush or
clean cloth.
Take the towball from the storage bag.
Remove the protective cover from the ball
and
the protective cap from the locking wheel.
Stow the plug, cover and cap in the
storage
bag.
Check 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.
07
Practical information

239
Energy economy modeSystem which manages the period of use of certain functions to conserve 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.
A flat battery prevents the engine from
starting.
For more information on the 12 V
battery, refer to the corresponding
section.
If the telephone is being used at the
same time with the touch screen tablet,
it will be interrupted after 10 minutes.
Switching to economy mode
Once this period has elapsed, a message
appears in the screen indicating that the
vehicle has switched to economy mode and the
active functions are put on standby.
Exiting economy mode
These functions are reactivated automatically
the next time the vehicle is driven.
F

I
n order to resume 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.
Load reduction modeSystem 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 the air conditioning,
the heated rear screen...
The deactivated functions are reactivated
automatically as soon as conditions permit.
07
Practical information

243
Petrol engines
1. Power steering fluid reservoir.
2. Screenwash and headlamp wash fluid
reservoir.
3.
C

oolant header tank.
4.
B

rake fluid reservoir.
5.
B

attery / Fuses.
6.
F

usebox.
7.
R

emote earth point (-).
8.
A

ir filter.
9.
E

ngine oil dipstick.
10.
E

ngine oil filler cap.
07
Practical information

244
Diesel engines
1. Power steering fluid reservoir.
2. Screenwash and headlamp wash fluid
reservoir.
3.
C

oolant header tank.
4.
B

rake fluid reservoir.
5.
B

attery / Fuses.
6.
F

usebox.
7.
R

emote earth point (-).
8.
A

ir filter.
9.
E

ngine oil dipstick.
10.
E

ngine oil filler cap.
11.
P

riming pump*.The Diesel fuel system operates under
high pressure:
-

N
ever carry out any work on this
system yourself.
-

H
Di engines make use of advanced
technology.
All maintenance and repairs require
specially trained staff, which only a
CITROËN dealer can provide.
* According to engine.
07
Practical information