2008.5 Citroen C4 DAG sensor

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IX
D R I V I N G
VISUAL AND AUDIBLE FRONT AND/OR REAR PARKING ASSISTANCE
System consisting of four proximity
sensors, installed in the front and/or
rear bumper.
It detects any obstacle (person, vehi-
cle, tree, barrier ...) located behind the
vehicle, however, it will not be able to
detect obstacles located immediately
below the bumper.
An object, such as a stake, a road-
works cone or any other similar
object may be detected at the start
of the manoeuvre but may no longer
be detected when the vehicle moves
nearer to it. The parking assistance is
switched
off :
- when you exit reverse gear,
- when the speed is higher than 6 mph (10 km/h) in forward gear,
- when the vehicle has been stationary for more than three
seconds in forward gear.
The parking assistance system
cannot, in any circumstances,
replace the need for vigilance and
responsibility on the part of the
driver.
The parking assistance is
switched
on :
- by engaging reverse gear,
- at a speed below 6 mph (10 km/h) in forward gear.
This is accompanied by an audible
signal and/or displaying of the vehi-
cle on the multifunction screen.
The proximity information is indicated
by:
- an audible signal which becomes more rapid as the vehicle
approaches the obstacle,
- a diagram on the multifunction screen, with blocks which move
closer to the vehicle.
The obstacle is located in relation to
the emission of the audible signal by
the speakers; front or rear and right
or left.
When the distance between the
vehicle and the obstacle is less than
approximately twenty-fi ve centime-
tres, the audible signal becomes
continuous and/or the "Danger"
symbol appears, depending on the
multifunction screen version.

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IX
D R I V I N G
In bad weather or in winter, ensure
that the sensors are not covered
with mud, ice or snow. When reverse
gear is engaged, an audible signal
(long beep) indicates that the sen-
sors may be dirty.
Reactivation

 Press button A again, the warning
lamp switches off, the system is
reactivated.
Deactivation Operating fault
If an operating fault occurs, this war-
ning light is displayed on the instru-
ment panel and/or a message appears
on the multifunction screen, accompa-
nied by an audible signal (short beep),
when reverse gear is engaged.
Consult a CITROËN dealer.

 Press button A , the warning lamp
comes on, the system is fully
deactivated.
The system will be deactivated
automatically when a trailer is being
towed or when a bicycle carrier is fi tted
(vehicle fi tted with a towbar or bicycle
carrier recommended by CITROËN).

126
X
C H E C K S
BLEEDING THE DIESEL FILTER
Protective cover
Removal

 Remove the protective cover by
unclipping fi rst point 1 , then 3
and 4 .

 Unclip point 2 pulling towards you,
then lift.
Refi tting

 Clip point 2 fi rst.

 Lower the cover, centring it.

 Clip points 1 and 4 , pushing ver-
tically and slightly rearwards.

 Clip point 3 , pushing vertically. Draining water from the fuel
filter
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.