sensor Citroen C4 DAG 2008 1.G Owner's Manual

Page 15 of 257

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18
F A M I L I A R I S A T I O N
MONITORING
Instrument panelControls
A. Speedometer.
B. Rev counter.
C. Fuel gauge.
D. Lighting rheostat.
E. Warning lamp.
Ignition on, the orange and red alert warning lamps come on.
With the engine running, these same warning lamps should go out.
If a warning lamp stays on, refer to the relevant page.
Warning lamps
A. Deactivation of the ESP/ASR system.
B. Deactivation of the visual and audible parking assistance.
C. Deactivation of the lane departure warning system.
D. Deactivation of the alarm volumetric sensors.

Page 41 of 257

42 III
C O M F O R T
Air conditioning
At any time of year, the air condition-
ing is useful for removing air humid-
ity and misting.
To keep the air conditioning com-
pressor well sealed, it is essential to
operate the air conditioning at least
once in every month.
To be effective, the air conditioning
should only be used with the win-
dows closed.
If you are towing a heavy trailer or if
outside temperatures are very high,
the air conditioning may be tempo-
rarily interrupted in favour of engine
cooling.
Sensor
The automatic air conditioning inside the passenger compartment makes use of the sunlight sensor, which is located on the dashboard behind the instrument panel.
Take care not to obstruct it.
Water arising from condensation
in the air conditioning is allowed to
drain out through an aperture pro-
vided for this purpose; a pool of
water may thus form beneath the
vehicle when stationary.
You are recommended to have the
air conditioning system checked on
a regular basis (see Maintenance
Guide).
The air conditioning uses energy
from the engine to operate. This
results in extra fuel consumption

Page 73 of 257

69
V
V I S I B I L I T Y
Windscreen wiper stalk
2 Fast speed
1 Normal speed
I Intermittent
0 Off
AUTO Automatic wiping.
Position I: The timing of the inter-mittent wipe adjusts automatically to the speed of the vehicle.
Position 1 or 2: or when stationary, the windscreen wiper speed automati-cally reduces.
SCREEN WIPE
Deactivating automatic wiping
Go to position I then return to posi-tion 0.
WARNING:
Do not cover the rain sensor, which is visible from the outside of the wind-screen, behind the interior rear view mirror.
When washing the vehicle, switch off the ignition or deactivate auto-matic wiping.
Automatic wiping
AUTO position: press downwards to activate automatic wiping.
Press downwards: Automatic wipe activated.
Note: A press downwards triggers a single wipe, but without deactivating automatic wipe.
As a safety precaution, the wiper system is deactivated approx. 1 minute after the ignition has been switched off.
On switching the ignition back on, to reactivate the function:
- return to the Off position,
- change to the position desired.

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84
VIII
S A F E T Y
Any repair or any change of tyre, on a wheel fi tted with a sensor, should be carried out by a CITROËN with a sensor, should be with a sensor, should be
Dealer.
The system may be affected from time to time by interfer-ence from radio transmissions on similar frequencies.
This function alerts you in the event of a tyre being defl ated or punctured. For this purpose, sensors continu-ously monitor the condition of the vehicle’s wheels.
This system does not absolve the driver of the need to check the tyre pressures regularly.
The SERVICE warning lamp lights up and a vehi-cle outline is displayed. The wheel(s) concerned will be shown fl ashing on the vehicle outline. Check the tyre pressures as soon as pos-sible.
Under-infl ation warning
The STOP warning lamp lights up and a vehicle outline is displayed.
The wheel(s) concerned will be shown fl ashing on the vehicle outline. Stop the vehicle immediately, avoiding any violent actions on the steering wheel or brakes.
Puncture
Change the damaged wheel (whether punctured or substantially defl ated), have the tyre repaired as soon as possible, then check the tyre pres-sure as soon as you can after that.
The wheel affected will no longer be detectable by the alert system if it is in the boot or undergoing repair (information given by the vehicle outline). The spare wheel will not be monitored by the alert system.
The SERVICE warning lamp lights up and a vehi-cle outline is displayed. The wheel(s) concerned will be shown as absent on the vehicle outline. If you have not changed a wheel, this information indicates a malfunc-tionong of the system.
Consult the CITROËN network to have the defective sensor(s) replaced.
The defl ation detection system is a driving assistance function which does not absolve the driver from the responsibility to be vigilant, or from the need to check the tyre pressures regularly (see "Vehicle identifi ca-tion").
Wheel without sensor
TYRE PRESSURE SENSORSThis system does not absolve the driver of the need to check the tyre pressures on a regular basis (see "Identifi cation"), to ensure that the vehicle behaves as it should and to avoid premature wear on the tyres, especially when the vehicle is being subjected to heavy loads or driven at high speeds.
Do not forget to check the tyre pressure on the spare wheel.

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90
VIII
S A F E T Y
AIRBAGS
Replacement of the pyro-technic systems associ-ated with the airbags
After the airbags have been deployed, the pyrotechnic systems have to be changed in strict compliance with the manu-facturer's specifi cations.
Your vehicle may have:
A driver’s airbag located in the steering wheel, under the central cover.
A passenger's airbag in the dash-board.
Two side airbags located in the backrests of the driver’s seat and front passenger’s seat (door side).Two curtain airbags located on the interior edges of the roof.The control unit for the airbags and sensors analyses any frontal and lateral impacts suffered in the colli-sion detection zones (see illustration p 91).

Page 98 of 257

90
VIII
S A F E T Y
AIRBAGS
Replacement of the pyro-technic systems associ-ated with the airbags
After the airbags have been deployed, the pyrotechnic systems have to be changed in strict compliance with the manu-facturer's specifi cations.
Your vehicle may have:
A driver’s airbag located in the steering wheel, under the central cover.
A passenger's airbag in the dash-board.
Two side airbags located in the backrests of the driver’s seat and front passenger’s seat (door side).Two curtain airbags located on the interior edges of the roof.The control unit for the airbags and sensors analyses any frontal and lateral impacts suffered in the colli-sion detection zones (see illustration p 91).

Page 125 of 257

114
IX
D R I V I N G
Proximity sensors are located in the front and rear bumpers of your vehicle.
When manoeuvring, whether for-wards or in reverse, at a speed below approx. 6 mph, they warn you of the presence of any obstacle situ-ated within their detection zone, by means of:
- a sound signal emitted by the front or rear loudspeakers,
- the display of the outline of your vehicle with shading at the zones where obstacles are detected.
As the vehicle approaches an obsta-cle, the sound signal tells you its position according to whether the sound issues from the front LH or RH speaker or from the rear LH or RH speaker.
NaviDrive version
Screen C version
- As the vehicle gets close to the obstacle, the sound signal becomes ever more rapid and the shading appears ever closer to your vehicle’s outline.
- When the obstacle is less than around 25 centimetres from the vehicle, the signal becomes con-tinuous and a WARNING panel appears on the display.
Activation/Deactivation
You can activate/deactivate the parking assistance with a press on control 1. If the parking assistance is inactive, the warning lamp is on.
Activation or deactivation of the parking assistance is memorised when you stop the vehicle.
Note: The system is deactivated automatically if a trailer is attached to the vehicle.
The fi tting of the towbar should be carried out by the CITROËN net-The fi tting of the towbar should be The fi tting of the towbar should be
work.
This system does not replace the vigilance and responsibility of the driver.
VISUAL AND AUDIBLE FRONT AND REAR PARKING ASSISTANCE

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115
IX
D R I V I N G
Operation:
- When you engage reverse gear, a sound signal informs you that the system is active. The outline of your vehicle is displayed on the screen. Any obstacles situated at the rear or at the front of the vehi-cle can be detected.
- Moving forward at a speed lower than approx. 10 km/h (6 mph), either in neutral or in a gear, the outline of your vehicle is displayed on the screen immediately an obstacle is detected in front of the vehicle. Obstacles situated at the front of the vehicle can be detected.
When selecting reverse gear, a short audible sig-nal followed by another audible signal, accom-panied by the illumination of the SERVICE warning lamp indicates a malfunction of the system.
Consult a CITROËN dealer.
Note
- The proximity sensors cannot detect obstacles situated imme-diately below or above the bump-ers.
- A thin object such as a spike or stake, or other similar object, may be detected only at the start of your manoeuvre but not when the vehicle has approached close to it.
- During the winter months or in bad weather, make sure that the sen-sors are not covered by dirt or by ice or snow.

Page 133 of 257

122
X
M A I N T E N A N C E
Protection cover
HDi 135 and 140 engines
Remove the protection cover by fi rst unclipping point 1, then 3 and4. Detach point 2 by pulling towards you, then lift.
To reposition the protection cover, attach point 2 fi rst. Lower the cover, keeping it centred. Clip points 1 and4, pushing vertically and slightly rearwards. Clip point 3 pushing down vertically.
HDi engines are of a highly technical nature.
All maintenance and repairs require specifi c qualifi cations which only your CITROËN Dealer can guarantee.All maintenance and repairs require specifi c qualifi cations All maintenance and repairs require specifi c qualifi cations
Bleeding of water from the diesel fuel fi lter
To be bled on a regular basis (at every oil change).
To evacuate the water, slacken the bleed screw or the water in diesel fuel sensor, which is located at the base of the fi lter, until water ceases to fl ow out.
Then retighten the bleed screw or the water in diesel fuel sensor.
DIESEL INJECTION EQUIPMENTWear of brake discs, brake pads and brake drums
The rate of wear of the brake pads depends on the use of your vehicle (urban use, frequent stops), and on your style of driving or the type of journey.
For information on checking the discs and drums for wear, contact a CITROËN dealer.
After washing the vehicle, brake progressively to dry out the brake linings.

Page 134 of 257

122
X
M A I N T E N A N C E
Protection cover
HDi 135 and 140 engines
Remove the protection cover by fi rst unclipping point 1, then 3 and4. Detach point 2 by pulling towards you, then lift.
To reposition the protection cover, attach point 2 fi rst. Lower the cover, keeping it centred. Clip points 1 and4, pushing vertically and slightly rearwards. Clip point 3 pushing down vertically.
HDi engines are of a highly technical nature.
All maintenance and repairs require specifi c qualifi cations which only your CITROËN Dealer can guarantee.All maintenance and repairs require specifi c qualifi cations All maintenance and repairs require specifi c qualifi cations
Bleeding of water from the diesel fuel fi lter
To be bled on a regular basis (at every oil change).
To evacuate the water, slacken the bleed screw or the water in diesel fuel sensor, which is located at the base of the fi lter, until water ceases to fl ow out.
Then retighten the bleed screw or the water in diesel fuel sensor.
DIESEL INJECTION EQUIPMENTWear of brake discs, brake pads and brake drums
The rate of wear of the brake pads depends on the use of your vehicle (urban use, frequent stops), and on your style of driving or the type of journey.
For information on checking the discs and drums for wear, contact a CITROËN dealer.
After washing the vehicle, brake progressively to dry out the brake linings.