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

IN BRIEF
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E X T E R I O R
Panoramic glass roof
Xenon directional headlamps
Whether on dipped beams or main beams, this func-tion allows your headlamps to follow the direction of the road ahead.
Opening rear screen
Pneumatic rear suspension
The rear pneumatic suspen-sion enhances driving comfort and maintains a constant body height whatever the vehicle load.
Exterior side lighters
These light up the zones fac-ing the driver’s and passen-ger’s doors.
Front/rear parking assistance
Sensors located in the bumpers detect obstacles.
Parking space sensor
Measures the size of a space and informs you of the possi-bility of parking.
Exterior rear view mirrors
With electric foldback.
Automatically tilts in reverse gear.

A
A
IN BRIEF
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D R I V I N G
Electronic parking brake
This device combines :
- automatic functions :
Automatic application when the engine stops and automatic re-lease on use of the accelerator (automatic operation by default) ;
- manual use :
Permanent manual application / release of parking brake is pos-sible by pulling control A.
Navidrive Multifunction display
Before leaving the vehicle, check that the electronic parking brake warning lamp P (red) is perma-nently on.If you leave the vehicle with the engine running, manually apply the parking brake.Never leave a child alone inside the vehicle with the ignition on, as they could release the park-ing brake.
Parking space sensor
You can select the “parking space sen-sor” function by pressing on button A. Once the space has been measured, the function displays the following messages :
Warning lamps displaylamps displayWarning lamps displayps disInstrument panelpanelpanel
Multifunction display
Instrument panel
Parking possible
Parking diffi cult
Parking not advised
Hill start assist
To aid starting on a gradient, your vehicle is equipped with a system which keeps it immobilised for about 2 seconds, the approximate time it takes to move your foot from the brake pedal to the accel-erator pedal.

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You can select the “parking space sensor” function by pressing button A. The fi xed lighting of the warning lamp indicates that the function is selected.
Parking space sensor warning lamp
This warning lamp can have three different statuses :
- off : the function is not selected.
-on fi xed : the function is selected but the conditions for mea
suring are not yet met (direction indicator not operating, speed too high) or the measuring phase is terminate d.
- fl ashing : the measuring is in progress or the message is being displayed.
The parking space sensor function assists you in fi nding a parking space. 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 necessary for your manœuvring,
- the level of diffi culty of the manœuvre to be performed.
Note : The system does not measure spaces which are clearly much smaller or larger than the size of the vehicle.
P A R K I N G S P A C E S E N S O R

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If there is a malfunction, have the system checked by a CITROËN dealer.
The function displays the following types of message :Operation :
You have identifi ed a parking space :
1. Press button A to select the function.
2. Activate the direction indicator on the side where the space is to be measured.
3. During the measuring, go forward the length of the space, at a speed less than 20 km/h (approx. 12 mph), to prepare for your manœuvre.
The system then measures the size of the space.
4. The system informs you of the level of diffi culty of the manœuvre via a message on the multifunction screen accompanied by a gong.
5. Depending on the message issued by the system, you may or may not be able to perform the manœuvre.
Parking possible
Parking diffi cult
Parking not advised
Note : The function deselects itself automatically :
- 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 70 km/h (approx. 45 mph) for one minute.
Warning : if the lateral distance between your vehicle and the parking space is too large, the system may not be able the measure the space.
Notes :
- The function remains available after each measurement and thus can measure more than one space during your search.
- In bad weather conditions or in winter, make sure that the sen-sors are not covered by dirt, or by ice or snow.
- The parking space sensor func-tion deactivates the front park-ing assistance during the space measuring phase when you are in forward gear.
P A R K I N G S P A C E S E N S O R

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0
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Windscreen wipe
3 Rapid wipe.
2 Normal wipe.
1 Intermittent wipe.
0 Stop.
4 Automatic wipe by pressing downwards, and single wipe.
Note : To deactivate automatic wipe :
- go to position 1, then return to position 0.
Position 1 : The wipe interval will adjust automatically depending on the speed of the vehicle.
Note : In position 2 or 3 : when the vehicle is stationary the wipe interval will reduce automatically.
For safety, the wiper system is deactivated approx. one m inute after you switch off the ignition.
When you switch on the ignition, to reactivate the function :
- return to the Stopposition,
- go to the position desired.
Vehicle equipped with a rain sensor
Position 4 by pressing downwards : The wipe interval will adjust auto-matically as a function of the intensity of the rain.
Note : A press downwards produces a single wipe without deactivating automatic wipe.
IMPORTANT :
Do not cover the rain sensor, which is located behind the interior rear view mirror and visible from outside the windscreen.
If washing the vehicle, switch off the ignition or deactiva te automatic wipe.
Changing the wiper blades
For replacement, the wipers should be stopped in themaintenance position.
Switch off the ignition, then within a minute action the wiper control stalk. The wipers will position themselves in the middle of the wi ndscreen.
After replacement, the wipers will resume their normal position when you switch on the ignition and action the wiper stalk.
For optimum wiping, change the wiper blades once they start t o leave marks on the screen ; otherwise, change them once or twice a year (e .g. in autumn and in spring).For safety, the wiper system is deactivated approx. one minute after you switch off the ignition.
W A S H / W I P E

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Proximity sensors are located in the front and rear bumpers of your vehicle.
Functioning
- When you engage reverse gear, a sound signal informs you that the system is active. The outline of your vehicle is displayed on the multi-function screen C or DT. Obstacles situated at the rear or in front of the vehicle will be detected.
- When you are moving forward, provided this is at a speed less than 10 km/h (approx. 6 mph), either in neutral or in gear, the outline on your vehicle is displayed on the screen as soon as an obstacle is dete cted in front of the vehicle. Obstacles located in front of the vehicle will be detected.
- In forward gear or in reverse gear, as the vehicle approaches the ob-stacle, the sound signal becomes more and more rapid and the ba rs are seen to move ever nearer to the vehicle.
- Whether in forward gear or in reverse gear, when theobstacle is close, the sound signal becomes continuous and the WARNING panel appears on the multifunction display.
Note : the sound signal is emitted by the loudspeakers that are nearest to the obstacle.
P A R K I N G A S S I S T A N C E
Multifunction screen DT
Multifunction screen C
This system can in no way replace vigilance and responsibility of the part of the driver.
When you engage reverse gear, a short sound signal followed by a different sound signal accompanied by a message and the lighting of the SERVICE warning lamp, indi cates that there is a malfunction.
Contact a CITROËN dealer.

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Activation / Deactivation
You can activate/deactivate the parking assistance by pressing cont
rol A. If the parking assistance is inactive, the warning lamp is on.
Activation or deactivation of the parking assistance is memorised wh en you stop the vehicle.
Notes :
- The rear parking assistance is deactivated automatically if a trailer is attached to the vehicle. The fi tting of the towbar should be carried out by a CITROËN dealer.- The rear parking assistance is deactivated automatically if a trailer is attached to the vehicle. The fi tting of the - The rear parking assistance is deactivated automatically if a trailer is attached to the vehicle. The fi tting of the
- The proximity sensors will not be able to detect obstacles that are situated immediately below or abo ve the bumpers.
- A thin object such as a spike, or a bollard or other similar object, will be detected only at the start of the manœuvre, not when the vehicle has arrived up close.
- In bad weather or in winter, make sure that the sensors are n ot covered by dirt, or by ice or snow.
P A R K I N G A S S I S T A N C E

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Sensors
The automatic regulation of the air conditioning inside the cabin uses a number of sensors that relieve you of the need to make adjust-ments outside the displayed tem-perature.
Be careful not to obstruct the sun-light sensor located on the dash-board.
Air inlet
Check that the exterior grille for the air inlet, at the bottom of the windscreen, is clean and free of dead leaves, snow, etc.
Air vents
The air vents to the face have grilles and thumbwheels so that you can adjust the air fl ow and direction (up-down, right-left).
Air circulation
Air vents on the fl oor underneath the front seats provide enhanced heating for the rear seat positions : take care not to obstruct them.
Dust fi lter / odour fi lter (active carbon)
There is a fi lter for excluding odours and dust.
This fi lter has to be changed in accordance with the vehicle main-tenance schedule (see the Main-tenance Guide).
Air conditioning
To ensure that your system oper-ates correctly, it is recommended to have it checked regularly.
Water arising from condensation in the air conditioning drains away through a hole provided for this purpose. A pool of water may thus form under the vehicle when sta-tionary.
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 condition-ing should only be used with the windows closed.
If after a lengthy stop in bright sunlight the interior temperature is excessive, air the passenger com-partment by opening the windows for a few moments, then close them again.
The air conditioning operates by using power from the engine. This results in a slight increase in fuel consumption.
V E N T I L A T I O N - H E A T I N G A I R C O N D I T I O N I N G

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A U T O M A T I C A I R C O N D I T I O N I N G
(Function for retaining ventilation with the engine switched off : REST function, continued…)
Engine stopped, ignition switched on :- The displays will light up, with the air blower shown empty as long as the function is available.- A press on the REST button activates the function for a timing of just a few minutes. Two blades of the blower will fi ll to signify that the function is active.- It can be deactivated and reactivated during the timing.- At the end of the timing, the display will go off.
On stopping the engine :- The displays remain lit up, the blower is shown em pty and the function can be activated for 30 seconds.- A press on the REST button during the next 30 sec-onds activates the function for a timing of several min-utes. The duration and availability of the function are variable according to the state of charge of the battery (a protection to guarantee engine starting). Two blower blades fi ll up to signify that the function is active. It re-mains active, even after the doors have been locked , until the end of the timing.- A further press before the end of the timing defi nitively stops the function.
Note : This button does not activate the air conditioning, only the air blowers. In the REST function, the air fl ow and distribution are controlled automatically and you c annot modify them.
4 - Adjustment of the air distribution- Press on button 4 so that the air fl ows scroll succes-sively on the display.
5 - Air recirculation
This button activates the recirculation of air within the passenger compartment and also has an automatic function.
The air distribution you have chosen is con-fi rmed by the lighting of the corresponding warning lamps in the display.
There are 7 possible adjustments.
Entry of air in automatic mode (activated by default, in automatic comfort regulation)
Automatic mode makes use of an air quality sensor. This analyses the air and isolates the passenger com-partment from the exterior as soon as it detects the presence of pollutants. Then it automatically activates recirculation of cabin air.
1
Closing of the air inlet
- Press on button 5 to close off the entry of air from outside.2
Whilst retaining the other adjustments, this position enables the driver at any time to exclude any disa-greeable odours or fumes coming from outside the vehicle.
It should be cancelled as soon as possible to permit renewal of cabin air and to prevent misting.
- Press once on button 5 to return to the initial status (entry of air in automatic mode).
Note : The airrecirculation can also be accessed by means of a press on the control located low down to one side of the steering wheel (see “Fixed centred controls steering wheel”).
Entry of air (manual mode)
- Press on button 5 to activate entry of air from the outside. The warning lamp goes out. 3

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HDi engines are of a highly technical nature.
All maintenance and repairs require specifi c qualifi cations which only your CITROËN Dealer can guarantee.
Draining water from the fuel fi lter
Bleed 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.
Persist until water ceases to fl ow out.
Then retighten the bleed screw or the water-in-diesel-fuel sensor.
D I E S E L I N J E C T I O N E Q U I P M E N T
Protection cover
HDi 138 engine
Remove the protection cover by fi rst unclipping point 1, then 3 and 4. 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 and 4, pushing vertically and slightly rearwards. Clip point 3pushing down vertically.