2013.5 Citroen C4 DAG sensor

5
VISIBILITY
108











Automatic rain sensitive
windscreen wipers
The windscreen wipers operate automat-
ically, without any action on the part of
the driver, if rain is detected (sensor be-
hind the rear view mirror), adapting their
speed to the intensity of the rainfall.
Briefl y push stalk A
down-
wards.
The instruction is confi rmed by
a wiping cycle, accompanied
by illumination of this warning lamp in
the instrument panel and an activation
message.
Switching on

Switching off
Operating fault
If an automatic rain sensitive wiper mal-
function occurs, the wipers will operate
in intermittent mode.
Contact a CITROËN dealer or a quali-
fi ed workshop.
Do not cover the rain sensor,
linked with the sunshine sensor
and located in the centre of the
windscreen behind the rear view
mirror.
Switch off the automatic rain
sensitive wipers when using an
automatic car wash.
In winter, it is advisable to wait
until the windscreen is completely
clear of ice before activating the
automatic rain sensitive wipers.

The automatic rain sensitive
windscreen wipers must be re-
activated if the ignition has been
off for more than one minute.
Briefl y push stalk A
downwards
again.
The instruction is confi rmed by
this warning lamp going off in
the instrument panel and/or the display
of a deactivation message.










Windscreen and headlamp
wash


Low screenwash / headlamp wash
fl uid level
On vehicle fi tted with headlamp wash-
ers, the low level of this fl uid is indicat-
ed by gauge in the reservoir fi ller neck
under the bonnet.
Checking and topping up this fl uid can
should be done with the engine off.
The level of this fl uid should be checked
regularly, particularly during winter.
Refer to "Checks - Screenwash / head-
lamp wash level" section for the proce-
dure on checking the level.



Pull the windscreen wiper stalk to-
wards you. The windscreen wash
then the windscreen wipers operate
for a fi xed period.
The headlamp washers only operate
when the dipped or main beam head-
lamps are on
, with the vehicle moving
.

To reduce the consumption of
the fl uid by the headlamp wash-
ers, they operate only with every
seventh use of the screenwash
or every 25 miles (40 km) during
a given journey.

9
DRIVING
166








TYRE UNDER-INFLATION
DETECTION

System which automatically checks the
pressures of the tyres while driving.
The system continuously monitors the
pressures of the four tyres, as soon as
the vehicle is moving.
A pressure sensor is located in the
valve of a each tyres (except the spare
wheel).
The system triggers an alert if a drop
in pressure is detected in one or more
tyres.
The tyre under-infl ation detection sys-
tem is an aid to driving which does not
replace the need for the driver to be
vigilant or to drive responsibly.
This system does not avoid the
need to check the tyre pressures
regularly (including the spare
wheel) and before a long jour-
ney.
Driving with under-infl ated tyres
adversely affects road holding,
extends braking distances and
causes premature tyre wear,
particularly under arduous con-
ditions (vehicle loaded, high
speed, long journey).

Driving with under-infl ated tyres
increases fuel consumption.
The tyre pressures for your vehi-
cle can be found on the tyre pres-
sure label (see the "Identifi cation
markings" section).
The tyre pressures must be
checked when the tyres cold
(vehicle stopped for 1 hour or
after driving for less then 6 miles
(10 km) at moderate speed).
Otherwise, add 0.3 bar to the val-
ues indicated on the label.

9
DRIVING
167
The fl ashing and then fi xed
illumination of the under-infl a-
tion warning lamp accompa-
nied by the illumination of the
"service" warning lamp indi-
cates a fault with the system.

Operating fault

The alert is given by the fi xed il-
lumination of this warning lamp,
accompanied by an audible sig-
nal, and depending on equip-
ment, the display of a message.

Under-inflation alert


The alert is maintained until the
tyre or tyres concerned is rein-
fl ated or repaired.

The loss of pressure detected
does not always lead to visible
deformation of the tyre. Do not
rely on just a visual check.

This alert is also displayed when
one or more wheels is not fi tted
with a sensor.
In the event of a problem on one of
the tyres, the symbol or the message
appears, according to equipment, to
identify it.


Reduce speed, avoid sudden steer-
ing movements or harsh brake ap-
plications.


Stop as soon as it is safe to do so.


In the event of a puncture, use the
temporary puncture repair kit or the
spare wheel (according to equip-
ment),
or


if you have a compressor, the one in
the temporary puncture repair kit for
example, check the four tyre pres-
sures when cold,
or


if it is not possible to check the tyre
pressures at the time, drive care-
fully at reduced speed. In this case, monitoring of the tyre pres-
sures is not assured.
Have the system checked by a
CITROËN dealer or a qualifi ed work-
shop.

9
DRIVING
171





LANE DEPARTURE WARNING
SYSTEM
The lane departure warning sys-
tem cannot, in any circumstances,
replace the need for vigilance and
responsibility on the part of the
driver.

Activation




Press this button, the indicator lamp
comes on.



Deactivation




Press this button again, the indicator
lamp goes off.
The status of the system remains in the
memory when the ignition is switched off.


Detection

You are warned by the vibration of the
driver's seat cushion:


- on the right-hand side, if the mark-
ing on the ground has been crossed
on the right,

- on the left-hand side, if the marking
on the ground has been crossed on
the left.
No warning is transmitted while the
direction indicator is active and for ap-
proximately 20 seconds after the direc-
tion indicator is switched off.
A warning may be transmitted if a direc-
tion marking (e.g. arrow) or non-standard
marking (e.g. graffi ti) is crossed.


Operating fault


The detection may be impeded:


- if the sensors are dirty (mud,
snow...),

- if the markings on the ground
are worn,

- if there is little contrast be-
tween the markings on the
ground and the road surface.

System which detects the involuntary
crossing of longitudinal traffi c lane mark-
ings on the ground (solid or broken line).
Sensors, fi tted below the front bumper,
trigger a warning if the vehicle drifts
over a lane marking (speed higher than
50 mph (80 km/h)).
This system is particularly useful on
motorways and main roads. In the event of a malfunction,
the service warning lamp
comes on, accompanied by
an audible signal and a message in the
screen.
Contact a CITROËN dealer or a qualifi ed
workshop.

9
DRIVING
172








BLIND SPOT SENSORS


This driving assistance system warns
the driver of the presence of another
vehicle in the blind spot angle of their
vehicle (areas masked from the driver's
fi eld of vision), as soon as this presents
a potential danger.

Operation





On switching on the ignition, or en-
gine running, press this button to
activate the function; the warning
lamp comes on.

This system is designed to im-
prove safety when driving and is
in no circumstances a substitute
for the use of the interior rear
view mirror and door mirrors. It
is the driver's responsibility to
constantly check the traffi c, to
asses the distances and relative
speeds of other vehicles and to
predict their movements before
deciding whether to change
lane.
The blind spot sensor system
can never replace the vigilance
and responsibility of the driver.
Sensors fi tted in the front and rear bum-
pers monitor the blind spots. A warning lamp appears in the door
mirror on the side in question:


- immediately, when being overtaken,

- after a delay of about one second,
when overtaking a vehicle slowly.

9
DRIVING
174

The system may suffer tem-
porary interference in certain
weather conditions (rain, hail...).
In particular, driving on a wet sur-
face or moving from a dry area to
a wet area can cause false alerts
(for example, the presence of a
fog of water droplets in the blind
spot angle is interpreted as a ve-
hicle).
In bad or wintry weather, ensure
that the sensors are not covered
by mud, ice or snow.
Take care not to cover the warn-
ing zone in the door mirrors or
the detection zones on the front
and rear bumpers with adhesive
labels or other objects; they may
hamper the correct operation of
the system.




To deactivate the system, press
this button again; the warning lamp
goes off.
The state of the system remains in
memory on switching off the ignition.

Operating fault

In the event of a fault, the warning lamp
in the button fl ashes then goes off.
Have it checked by a CITROËN dealer
or a qualifi ed workshop.
The system is automatically de-
activated when towing with a
towbar approved by CITROËN.

9
DRIVING
180





PARKING SPACE SENSORS


System which measures the parking
space available between two vehicles
or obstacles. It measures the size of the
space and gives you information on:


- the possibility of fi tting into a free
space, depending on the dimensions
of your vehicle and the distances
needed for manoeuvring,

- the level of diffi culty of the manoeuvre
to be performed.
The system does not measure spaces
which are clearly much smaller or larg-
er than the size of the vehicle.

Displays in the instrument panel



- on fi xed:
the function is selected by
a press on control A
.

- off:
the function is not selected,
The parking space sensor
function warning lamp can
have two different states:

Operation

You have identifi ed a parking space:



Press button A
to select the function.


Operate the direction indicator on
the side where the space is to be
measured; a message is displayed
to confi rm that measurement is in
progress.


During measurement, go forward
the length of the space, at a speed
less than 12 mph (approx. 20 km/h),
to prepare for your manoeuvre.


Once the measurement has been
completed, the system informs you
of the level of diffi culty of the ma-
noeuvre by a message in the multi-
function screen accompanied by an
audible signal.

9
DRIVING
181

The function displays the following types
of message:

Parking possible


Parking diffi cult


Parking not advised

The function deselects itself automati-
cally:


- when you engage reverse gear,

- when you switch off the ignition,

- if measuring is not requested,

- within fi ve minutes of selection of
the function,

- if the vehicle speed exceeds the
threshold of 45 mph (approx. 70 km/h)
for one minute.

If the lateral distance between your ve-
hicle and the parking space is too large,
the system may not be able to measure
the space.
If there is a fault, have the sys-
tem checked by a CITROËN
dealer or a qualifi ed workshop.

The system remains available after
each measurement and can therefore
measure several spaces in succession.
In poor or wintry weather, ensure that
the sensors are free of dirt, ice or snow.
The parking space sensor system de-
activates the front parking sensors
when measuring forwards.