2010 Citroen C4 DAG fuel
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IV
A C C E S S
Quality of the fuel used for
petrol engines
The petrol engines are perfectly
compatible with E10 type petrol
biofuels (containing 10 % ethanol),
conforming to European standards
EN 228 and EN 15376.
E85 type fuels (containing up to 85 %
ethanol) are reserved exclusively for
vehicles marketed for the use of this
type of fuel (BioFlex vehicles). The
quality of the ethanol must comply
with European standard EN 15293.
F o r B r a z i l o n l y , s p e c i a l v e h i c l e s a r e
marketed to run on fuels containing
up to 100 % ethanol (E100 type). Quality of the fuel used for
Diesel engines
The Diesel engines are perfectly
compatible with biofuels which con-
form to current and future European
standards (Diesel fuel which com-
plies with standard EN 590 mixed
with a biofuel which complies with
standard EN 14214) available at the
pumps (containing up to 7 % Fatty
Acid Methyl Ester).
The B30 biofuel can be used in cer-
tain Diesel engines; however, this
use is subject to strict application
of the special servicing conditions.
Consult a CITROËN dealer.
The use of any other type of
(bio)fuel (vegetable or animal oils,
pure or diluted, domestic fuel...) is
strictly prohibited (risk of damage to
the engine and fuel system). Special features of BioFlex
engines
A BioFlex vehicle has been designed
to run on unleaded petrol (RON 95
or RON 98) or ethanol (this is a mix-
ture containing 85 % ethanol and
15 % unleaded petrol, called E85).
So, regardless of the quantity of fuel
remaining in your tank and irrespec-
tive of its type (RON 95/RON 98,
E85 or a mixture of the two), you
c a n fi l l y o u r t a n k a t a n y t i m e w i t h u n -
leaded petrol (RON 95 or RON 98)
or ethanol (E85).
There is no problem driving on un-
leaded petrol only with this vehicle.
In winter conditions, starting the
engine from cold may sometimes
p r o v e d i f fi c u l t . D u r i n g t h e s e v e r y
cold periods you are advised to
use unleaded petrol rather than
E85 to ensure optimum starting
conditions.
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IX
D R I V I N G
Temporary manual operation
when in automatic mode
By pulling either of the " + " or " - " pad-
dles, you can exercise temporary
control over gear changing.
The request to change gear will be
taken into account. You will still be in
automatic mode. The warning lamp A
remains lit up in the instrument panel.
This function enables you to antici-
pate certain situations such as the
approach of a bend or the need to
overtake another vehicle.
Move the selector to position A .
The warning lamp A lights up in
t h e i n s t r u m e n t p a n e l t o c o n fi r m
the selection.
The gearbox then functions in auto-
matic mode, without any action on
your part.
It constantly selects the gear that is
best suited to the following condi-
tions:
- driving style,
- r o a d p r o fi l e ,
- optimum fuel consumption.
Operation in automatic mode
Cancellation of automatic
mode
The change from position A (driving in
automatic mode) to position M (driv-
ing in manual mode) or vice versa can
be made at any time. The warning
lamp A disappears in the instrument
panel.
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X
C H E C K S
BLEEDING THE DIESEL FILTER
Protective cover
Removal
Remove the protective cover by
u n c l i p p i n g fi r s t p o i n t 1 , then 3
and 4 .
Unclip point 2 pulling towards
you, then lift.
R e fi t t i n g
Clip point 2 fi r s t .
Lower the cover, centring it.
Clip points 1 and 4 , pushing ver-
tically and slightly rearwards.
Clip point 3 , pushing vertically. Bleeding 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
b a s e o f t h e fi l t e r .
C o n t i n u e u n t i l w a t e r c e a s e s t o fl o w
out.
Then retighten the bleed screw or
the water-in-diesel-fuel sensor.
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126
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 system
In the event of running out of fuel:
a f t e r fi l l i n g ( m i n i m u m 5 l i t r e s ) ,
squeeze the manual priming
pump repeatedly, until some re-
sistance is felt,
then operate the starter, gently
pressing the accelerator until the
engine starts.
I f t h e e n g i n e f a i l s t o s t a r t a t t h e fi r s t
attempt, wait 15 seconds before
trying 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 re-
pairs require specialist knowledge
which only your CITROËN dealer
can assure.
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C H E C K S * A c c o r d i n g t o e n g i n e .
DIESEL ENGINES
T h e c o v e r s a n d c a p s a l l o w a c c e s s f o r c h e c k i n g t h e l e v e l s o f t h e v a r i o u s fl u i d s , f o r r e p l a c i n g c e r t a i n c o m p o n e n t s a n d f o r
priming the fuel system.
1. Power steering reservoir.
2. Screenwash and headlamp
wash reservoir.
3. Coolant reservoir.
4. B r a k e fl u i d r e s e r v o i r .
5. Battery.
6. Fusebox.
7. A i r fi l t e r * .
8. Engine oil dipstick.
9. E n g i n e o i l fi l l e r c a p .
10. P r i m i n g p u m p * .
11. B l e e d s c r e w * . As the diesel fuel system is
pressurised, any work on
this system is prohibited.
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XI
P R A C T I C A L I N F O R M A T I O N
Table of fuses
Fuse N° Rating
Functions
F1 20 A Engine management control unit - Cooling fan
F2 15 A Horn
F3 10 A Front and rear screen wash
F4 20 A Headlamp wash
F5 15 A Fuel pump
F6 10 A A u t o m a t i c g e a r b o x - X e n o n h e a d l a m p s - D i r e c t i o n a l h e a d l a m p s - C a n i s t e r d i s c h a r g e e l e c t r o v a l v e
F7 10 A A B S c o n t r o l u n i t / E S P c o n t r o l u n i t - P o w e r s t e e r i n g
F8 25 A Starter motor
F9 10 A A d d i t i o n a l h e a t i n g u n i t ( D i e s e l ) - E n g i n e c o o l a n t l e v e l s w i t c h
F10 30 A Engine electrovalve - Water in diesel sensor - Engine management
control unit -
I n j e c t o r s - I g n i t i o n c o i l - O x y g e n s e n s o r - C a n i s t e r d i s c h a r g e e l e c t r o v a l v e
( 1 . 4 i 1 6 V a n d 1 . 6 i 1 6 V e n g i n e s )
F11 40 A Air blower - Air conditioning
F12 30 A Windscreen wipe
F13 40 A B u i l t - i n S y s t e m s I n t e r f a c e ( B S I )
F14 - Not used
F15 10 A Right-hand main beam
F16 10 A Left-hand main beam
F17 15 A Left-hand dipped beam
F18 15 A Right-hand dipped beam
F19 15 A E n g i n e m a n a g e m e n t c o n t r o l u n i t ( 1 . 4 i 1 6 V e t 1 . 6 i 1 6 V e n g i n e s )
F20 10 A Engine electrovalve
F21 5 A C o o l i n g f a n r e l a y - V a l v e t r o n i c
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XII
T E C H N I C A L D A T A
MODELS:
ENGINES AND GEARBOXES
Model codes:
LA... LC... LG... LR...
KFU-C NFU-C NFU-F 5FW-C 5FW-F 5FX-H 5FT-F NFU-C/FF
PETROL ENGINES 1.4 L 16V 1.6 L 16V 110 hp 1.6 L 16VTi 120 hp
1.6 L THP
16V 150 hp 1.6 L THP
16V 140 hp
1.6 L 16V
110 hp
BioFlex
Cubic capacity (cc) 1 360 1 587 1 598 1 598 1 587
Bore x stroke (mm) 75 x 77 78.5 x 82 77 x 85.8 77 x 8 5.8 78.5 x 82
EU standard maximum power (kW) 65 80 88 110 103 80 82
Maximum power engine speed (rpm) 5 250 5 800 6 000 5 800 6 000 5 800
EU standard maximum torque (Nm) 133 147 160 240 147 153
Maximum torque engine speed (rpm) 3 250 4 000 4 250 1 400 4 000
Fuel Unleaded Unleaded Unleaded Unleade d
Unleaded E85
Catalytic converter Yes Yes Yes Yes Yes
GEARBOXES Manual
(5-speed) Manual
(5-speed) Auto.
(4-speed) Manual
(5-speed) Auto.
(4-speed) Manual
(6-speed) Auto.
(4-speed) Manual
(5-speed)
OIL CAPACITIES (in litres)
E n g i n e ( w i t h fi l t e r r e p l a c e m e n t ) 3.15 3.25 4.25 4.25 4.25 3.25
Gearbox - Final drive - 1.9 1.9 - 1.9 - 1.9
LA...: 3-door.
LC...: 5-door.
LG...: 3-door "Enterprise".
LR...: 5-door "Enterprise".
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T E C H N I C A L D A T A
MODELS:
ENGINES AND GEARBOXES
Model codes:
LA... LC... LG... LR...
9HX-C 9HV-C
9HY-B
9HY-C
9HZ-C 9HZ-H/P RHR-J RHF-8
DIESEL ENGINES
1.6 L HDi
16V 92 hp
1.6 L HDi 16V 110 hp
2 L HDi
16V 138 hp
2 L HDi
16V 140 hp
Cubic capacity (cc) 1 560 1 560 1 997 1 997
Bore x stroke (mm) 75 x 88.3 75 x 88.3 85 x 88 85 x 8 8
EU standard maximum power (kW) 66 66.2 80 100 103
Maximum power engine speed (rpm) 4 000 4 000 4 000 4 000
EU standard maximum torque (Nm) 215 240 320 320
Maximum torque engine speed (rpm) 1 750 1 750 2 000 2 000
Fuel Diesel Diesel Diesel Diesel
Catalytic converter Yes Yes Yes Yes
P a r t i c l e e m i s s i o n fi l t e r ( P E F ) No Yes No Yes Yes Yes
GEARBOXES Manual
(5-speed) Manual
(5-speed) Manual
(5-speed) Electronic
Gearbox System
(6-speed) Auto.
(6-speed) Manual
(6-speed)
OIL CAPACITIES (in litres)
E n g i n e ( w i t h fi l t e r r e p l a c e m e n t ) 3.85 3.85 3.85 3.85 5.3 5.3
Gearbox - Final drive 1.9 1.9 1.9 - - 2. 4
LA...: 3-door.
LC...: 5-door.
LG...: 3-door "Enterprise".
LR...: 5-door "Enterprise".