2011.5 Citroen C4 DAG warning

9
DRIVING
167








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 be-
fore 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
168

No alert will be given in the following
situations:


- in the presence of stationary objects
(parked vehicles, barriers, street
lamps, road signs...),

- with vehicles moving in the opposite
direction,

- driving on a sinuous road or a sharp
corner, The alert is given by a warning lamp
which comes on in the door mirror on
the side in question as soon as a ve-
hicle - car, lorry, cycle - is detected and
the following conditions are fulfi lled:


- all the vehicles must be moving in
the same direction,

- the speed of your vehicle is between
7 and 75 mph (12 and 140 km/h),

- the difference in speed between
your vehicle and the other vehicles
must be less than 6 mph (10 km/h),

- the traffi c must be fl owing normally,

- in the case of an overtaking ma-
noeuvre, if this is prolonged and the
vehicle being overtaken remains in
the blind spot,

- you are driving on a straight or
slightly curved road,

- your vehicle is not pulling a trailer, a
caravan...

- when overtaking (or being over-
taken by) a very long vehicle (lorry,
coach...) which is at the same time
detected at the rear in the blind spot
angle and present in the driver's for-
ward fi eld of vision,

- in very heavy traffi c: vehicles detect-
ed in front and behind are confused
with a lorry or a stationary object,

- when overtaking quickly.

9
DRIVING
169

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
175





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 larger
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.

10
CHECKS
185








Used products

Avoid prolonged contact of used
oil or fl uids with the skin.
Most of these fl uids are harmful
to health or indeed very corro-
sive.
Do not discard used oil or fl uids
into sewers or onto the ground.
Take used oil to a CITROËN
dealer or a qualifi ed workshop
(France) or to an authorised
waste disposal site.










Additive level (Diesel with
particle emissions filter)
According to your version of instrument
panel, the additive reservoir low level is
indicated by:

Topping up
The reservoir must be topped up with-
out delay by a CITROËN dealer or a
qualifi ed workshop.


- fi xed illumination of the par-
ticle emissions fi lter warning
lamp, accompanied by an au-
dible signal and a message
that the particle emissions fi l-
ter additive level is too low,

- fi xed illumination of the
service warning lamp, ac-
companied by an audible
signal and a message that
the particle emissions fi lter additive level is too low. or

Screenwash/headlamp wash
level
Specifi cation of the fl uid
To ensure optimum cleaning and to
avoid freezing, the fl uid should never be
topped up or replaced by plain water.


To check the level or top up the
fl uid on vehicle fi tted with head-
lamp washers, immobilise the
vehicle and switch of the engine.


)
Open the bonnet and secure it with
the stay.

)
Open the screenwash reservoir fi ller
cap.

)
Take and pinch the level gauge to
block its breather.

)
Remove the gauge completely from
the reservoir to read the level in the
transparent section.

)
Top up if necessary.

)
Refi t the fi ller cap to the reservoir
and close the bonnet.

10
CHECKS
186





























CHECKS

Unless otherwise indicated, check
these components in accordance with
the servicing booklet and according to
your engine.
Otherwise, have them checked by a
CITROËN dealer or a qualifi ed workshop.


Battery

The battery does not require
any maintenance.
However, check that the ter-
minals are clean and correctly
tightened, particularly in sum-
mer and winter.
When carrying out work on the battery,
refer to the "Practical information" sec-
tion for details of the precautions to be
taken before disconnecting the battery
and following its reconnection.


Air filter and passenger compartment filter

Refer to the servicing booklet
for details of the replacement
intervals for these compo-
nents.

Oil filter

Replace the oil fi lter each time
the engine oil is changed.
Refer to the servicing booklet
for details of the replacement
interval for this component.










Particle emission filter (Diesel)

According to your version of instrument
panel, the start of saturation of the par-
ticle emissions fi lter is indicated by:


- fi xed illumination of the par-
ticle emissions fi lter warning
lamp, accompanied by an au-
dible signal and a message
that there is a risk of blockage
of the particle emissions fi lter,






The presence of this label, in particular
with the Stop & Start system, indicates
the use of a specifi c 12 V lead-acid bat-
tery with special technology and speci-
fi cation, for which the involvement of a
CITROËN dealer or a qualifi ed work-
shop is required when replacing or dis-
connecting the battery.
Failure to observe this recommendation
may shorten the life of the battery.

Depending on the environment (e.g.
dusty atmosphere) and the use of the
vehicle (e.g. city driving), replace them
twice as often if necessary
(refer to
the "Engines" section).
A clogged passenger compartment fi l-
ter may have an adverse effect on the
performance of the air conditioning sys-
tem and generate undesirable odours.
As soon as the traffi c conditions per-
mit, regenerate the fi lter by driving at a
speed of at least 40 mph (60 km/h) until
the warning lamp goes off.
If the warning lamp stays on, refer to
the "Additive level" section.
On a new vehicle, the fi rst opera-
tions of regeneration of the particle
emissions fi lter may be accom-
panied by the smell of "burning",
which is perfectly normal.
Following prolonged operation
of the vehicle at very low speed
or at idle, you may, in excep-
tional circumstances, notice the
emission of water vapour at the
exhaust on acceleration. This
does not affect the behaviour of
the vehicle or the environment. or

-
temporary illumination of
the service warning lamp,
accompanied by an audible
signal and a message that
there is a risk of blockage of
the particle emissions fi lter.

11
PRACTICAL INFORMATION
190


Tyre under-infl ation detection

If the vehicle is fi tted with tyre under-
infl ation detection, the under-infl ation
warning lamp will remain on after the
wheel has been repaired until the
system is reinitialised by a CITROËN
dealer or a qualifi ed workshop.


If after around 5 to 7 minutes the
pressure is not attained, this in-
dicates that the tyre is not repair-
able; contact a CITROËN dealer
or a qualifi ed workshop for as-
sistance.
)
Switch on the compressor by mov-
ing the switch B
to position "I"
until
the tyre pressure reaches 2.0 bars.
The sealant is injected into the tyre
under pressure; do not disconnect
the pipe from the valve during this
operation (risk of splashing).
)
Remove the kit and screw the cap
back on the white pipe.
Take care to avoid staining your ve-
hicle with traces of fl uid. Keep the
kit to hand.

)
Drive immediately for approximate-
ly three miles (fi ve kilometres), at
reduced speed (between 15 and
35 mph [20 and 60 km/h]), to plug
the puncture.

)
Stop to check the repair and the tyre
pressure using the kit.

11
PRACTICAL INFORMATION
195









Removing a wheel


Parking the vehicle
Immobilise the vehicle where it
does not block traffi c: the ground
must be level, stable and non-
slippery ground.
Apply the parking brake unless it
has been programmed to auto-
matic mode, switch off the ignition
and engage fi rst gear * to lock the
wheels.
Check that the braking warning
lamps in the instrument panel
are on (not fl ashing).
The occupants must get out of
the vehicle and wait where they
are safe.
If necessary, place a chock under
the wheel diagonally opposite the
wheel to be changed.
Never go underneath a vehicle
raised using a jack; use an axle
stand.

*
position R
for the electronic gearbox
system; P
for an automatic gearbox.
List of operations


)
Remove the chromed bolt cover
from each of the bolts using the
tool 3
(according to equipment).

)
Fit the security socket 4
on the
wheelbrace 1
to slacken the secu-
rity bolt.

)
Slacken the other bolts using the
wheelbrace 1
only.

)
Place the jack 2
in contact with one
of the two front A
or rear B
locations
provided on the underbody, which-
ever is closest to the wheel to be
changed.

)
Extend the jack 2
until its base plate
is in contact with the ground. Ensure
that the centreline of the jack base
plate is directly below the location A

or B
used.

)
Raise the vehicle until there is suffi -
cient space between the wheel and
the ground to admit the spare (not
punctured) wheel easily.

)
Remove the bolts and store them in
a clean place.

)
Remove the wheel.