2008.5 Citroen C4 DAG Owner's Manual

123
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).

125
X
C H E C K S
BONNET
Protects the components of the engine
and provides access for checking levels.
Opening
 Push the exterior control B to the
left and raise the bonnet.

 Unclip the strut C from its housing.

 Fix the strut in the notch to hold
the bonnet open. Closing

 Take the strut out of the support
notch.

 Clip the strut in its housing.

 Lower the bonnet then slam it
fi rmly at the end of its travel.

 Pull on the bonnet to check that
it is secured correctly.
The location of the interior control
prevents opening of the bonnet
while the driver's door is closed.
This operation must only be carried
out when the vehicle is stationary.
Avoid opening the bonnet in strong
winds.

 Pull the interior control A , located
under the dashboard, to the right.

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.

127
C H E C K S
RUNNING OUT OF FUEL (DIESEL)
HDi 135 and 140 engine
Detach the protection cover to gain
access to the priming pump. HDi 90 and 110 engine
Detach the protection cover to gain
access to the priming pump. Priming the fuel circuit
In the event of running out of fuel:

 after fi lling (minimum 5 litres),
action the manual priming pump,
until some resistance is felt,

 then action the starter, gently
pressing the accelerator until the
engine starts.
If the engine fails to start at the fi rst
attempt, wait 15 seconds before try-
ing again.
If the engine fails to start after a few
attempts, repeat the procedure from
the beginning. When the engine is
idling, accelerate gently to complete
the purge of the circuit.
HDi engines are of a highly
technical nature.
All maintenance and repairs re-
quire specifi c qualifi cations which
only your CITROËN dealer can
guarantee.

128
X
C H E C K S
PETROL ENGINES
They allow you access for checking the level of the various fl uids and for replacing certain components.

1. Power steering reservoir.

2. Screenwash and headlamp wash
reservoir.
3. Coolant reservoir.

4. Brake fl uid reservoir.

5. Battery.
6. Fuse box.

7. Air fi lter * .

8. Dipstick.

9. Engine oil fi ller cap.
* According to engine.

129
X
C H E C K S * According to engine.
DIESEL ENGINES
They allow you access for checking the level of th e various fl uids, for replacing certain components and for repriming the fuel.

1. Power steering reservoir.

2. Screenwash and headlamp
wash reservoir.

3. Coolant reservoir.

4. Brake fl uid reservoir.

5. Battery.
6. Fuse box.

7. Air fi lter * .

8. Dipstick.

9. Engine oil fi ller cap.

10. Repriming pump * .

11. Degas screw * . As the diesel circuit is pres-
surised, any work on this
circuit is prohibited.

130
X
C H E C K S
CHECKING LEVELS
Check all of these levels regularly
and top them up if necessary, unless
otherwise indicated.
If a level drops signifi cantly, have the
corresponding circuit checked by a
CITROËN dealer.
Oil level
Draining the engine
Refer to the servicing booklet for de-
tails of the interval for this operation. Oil specifi cation
The oil must correspond to your engine
and conform to the manufacturer's rec-
ommendations.
Brake fluid level
Draining the circuit
Refer to the servicing booklet for de-
tails of the interval for this operation.
This fl uid must be changed regularly.
Fluid which has been used exces-
sively may cause a loss of braking
effi ciency.
Fluid specifi cation
The brake fl uid must conform to the
manufacturer's recommendations
and fulfi l the DOT4 standards.
Coolant level
Draining the circuit
The coolant does not have to be
changed.
Fluid specifi cation
The coolant must conform to the
manufacturer's recommendations.
The reading will only be
correct if the vehicle is on
level ground and the engine
has been off for more than
15 minutes.
The check is carried out either when
the ignition is switched on using the
oil level indicator on the instrument
panel, or using the dipstick.
Between two oil changes, the con-
sumption should not exceed 0.5 litre
per 600 miles (approx. 1 000 km).
Check this level also between each
scheduled service and before long
journeys. The brake fl uid level should
be close to the "MAX" mark.
If it is not, check the brake
pad wear.
The coolant level should be
close to the "MAX" mark but
should never exceed it.
When the engine is warm,
the temperature of the coolant is
regulated by the fan. This can oper-
ate with the ignition off.

On vehicles which are fi tted with
a particle emission fi lter, the fan
may operate after the vehicle has
been switched off, even if the en-
gine is cold.
In addition, as the cooling system is
pressurised, wait at least one hour
after switching off the engine before
carrying out any work.
To avoid any risk of scalding, un-
screw the cap by two turns to al-
low the pressure to drop. When the
pressure has dropped, remove the
cap and top up the level.
In order to maintain the re-
liability of the engine and
emission control system,
the use of additives in the engine
oil is prohibited.

131
X
C H E C K S
Screenwash and headlamp
wash fluid
Fluid specifi cation
For optimum cleaning and to avoid
freezing, this fl uid must not be
topped up or replaced with water.
Reservoir capacities:
- screenwash: approximately 3 litres,
- screenwash and headlamp wash: approximately 6 litres.
Diesel additive level
(Diesel engine with particle
emission filter)
A low additive level is indicated by
lighting of the service warning light,
accompanied by an audible warning
and a message on the multifunction
display.
Topping up
This additive must be topped up by
a CITROËN dealer without delay.
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 corrosive.
Do not discard used oil or
fl uids into sewers or onto
the ground.
Empty used oil into the containers pro-
vided for this purpose in the CITROËN
network.
In the case of vehicles fi tted
with headlamp washers, the
minimum level of this fl uid is
indicated by an audible signal
and a message on the multifunction
display.
Top up the level when you stop the
vehicle.