2010 Citroen C4 check engine

23
I
M O N I T O R I N G
INSTRUMENT PANEL WITH TRANSLUCENT SCREEN
The instrument panel groups all the driving and comfort information at the centre of the dashboard.
Central screen
5. Trip mileage recorder

6. Fuel gauge

7. Engine oil level check

8. Coolant temperature Control buttons

1. Rev counter

2. Cruise control or speed limiter
setting

3. Speedometer

4. Service indicator when the ig-
nition is switched on, then total
mileage recorder
A. Trip mileage recorder reset

B. Lighting rheostat

C. Display of alerts and Status of
functions

29
I
M O N I T O R I N G
Service indicator zero reset Engine oil level indicator
After each service, the service indi-
cator must be reset to zero.
The procedure for resetting to zero
is as follows:

 switch off the ignition,

 press and hold the trip distance
recorder zero reset button,

 switch on the ignition; the dis-
tance recorder display begins a
countdown,

 when the display indicates "=0" ,
release the button; the spanner
disappears. System which informs the driver
whether the engine oil level is cor-
rect or not.
This information is displayed for a
few seconds when the ignition is
switched on, after the service infor-
mation.
The level read will only be correct if
the vehicle is on level ground and
the engine has been off for more
than 15 minutes.
Oil level correct
Oil level low
This is indicated by the fl ashing of

"OIL" , accompanied by an audible
signal and a message on the multi-
function screen.
If the low oil level is confi rmed by a
check using the dipstick, it is essen-
tial that the level is topped up to pre-
vent damage to the engine. Oil level gauge fault
This is indicated by the fl ashing of

"OIL

--" . Contact a CITROËN dealer.
Dipstick
Refer to the "Checks" section to lo-
cate the dipstick and the oil fi ller cap
on your engine.
There are 2 marks on the
dipstick:
- A = max; never ex-
ceed this level,
- B = min; top up the
level via the oil fi ller
cap, using the type of
oil suited to your en-
gine.
Following this operation, if you wish
to disconnect the battery, lock the
vehicle and wait at least fi ve minutes
for the zero reset to be taken into ac-
count.

42
III
C O M F O R T
Air conditioning
To ensure that your system operates
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 pur-
pose. A pool of water may thus form
under the vehicle when stationary.
To keep the air conditioning com-
pressor well sealed, it is essential to
operate the air conditioning at least
once in every month.
Regardless of the season, the air
conditioning is useful, since it re-
moves humidity and condensation.
To be effective, the air conditioning
should only be used with the win-
dows closed.
If after a lengthy stop in bright sun-
light the interior temperature is ex-
cessive, ventilate the passenger
compartment by opening the win-
dows 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.
Dust filter/Odour filter
(active carbon)
There is a fi lter for excluding odours
and dust.
This fi lter has to be changed in ac-
cordance with the vehicle servicing
schedule (see "Maintenance and
Warranty Guide").
Air circulation
Maximum comfort is obtained when
there is a good distribution of air in
the passenger compartment, both in
the front and in the rear.
For optimum operating effi ciency,
take care not to obstruct the air out-
lets under the front seats.
Air vents
The face-level air vents have grilles
and thumbwheels to adjust the air fl ow
and direction (up-down, right-left).
The automatic regulation of the air
conditioning, inside the cabin, uses
the sunshine sensor located on the
dashboard behind the instrument
panel.
Be careful not to obstruct it.
Sensor

68
IV
A C C E S S
Refuelling
A label on the inside of the fl ap re-
minds you of the type of fuel to be
used for your engine.
More than 5 litres of fuel must be
added in order to be registered by
the fuel gauge.
The key cannot be removed from
the lock until the cap is put back on
the tank.
Opening the cap may cause an in-
rush of air. This vacuum, which is
perfectly normal, is caused by the
sealing of the fuel system. Petrol vehicles: the fi ller neck has a
narrower orifi ce to admit only petrol
fi ller nozzles.

Capacity of the tank: approximately 60 litres.
Low fuel level When the minimum level
in the fuel tank is reached,
this warning lamp in the in-
strument panel comes on,
accompanied by an audible signal
and a message on the multifunction
screen. When it fi rst comes on, you
have approximately 6 litres of fuel
remaining in the tank.
You must refuel to avoid running out
of fuel.
If you run out of fuel (Diesel), refer to
the "Checks" section also.
Fuel cut-off switch
Your vehicle is equipped with a safety
device which cuts off the fuel supply in
the event of a collision. To fi ll the tank safely:

 you
must
switch off the en-
gine,

 open the fuel fi ller fl ap,

 insert the key in the fuel tank cap
then turn it to the left,

 fi ll the tank, but do not continue
after the 3rd cut-off of the nozzle ;
this could cause malfunctions.
When the tank is full:

 put the cap back in place,

 turn the key to the right, then re-
move it from the cap,

 close the fl ap.

98
VIII
S A F E T Y
TRAJECTORY CONTROL SYSTEMS
Anti-skid regulation (ASR)
and electronic stability
programme (ESP)
Activation
These systems are activated auto-
matically each time the vehicle is
started.
They come into operation in the event
of a grip or trajectory problem. This is indicated by fl ashing
of this warning lamp on the
instrument panel. Deactivation
In exceptional conditions (starting a
vehicle which is bogged down, stuck
in snow, on soft ground...), it may be
advisable to deactivate the ASR and
ESP systems, so that the wheels
can move freely and regain grip.

 Press the "ESP OFF" button, lo-
cated in the centre of the dash-
board. Reactivation
These systems are reactivated au-
tomatically each time the ignition is
switched back on or from 30 mph
(50 km/h).

 Press the "ESP OFF" button again
to reactivate them manually.
If this warning lamp comes
on in the instrument panel
and the indicator lamp on the
button comes on, this indi-
cates that the ASR and ESP
systems are deactivated. Operating fault
If this warning lamp comes
on, accompanied by an au-
dible signal and a message
on the multifunction screen,
this indicates a malfunction of these
systems.
Have the systems checked by a
CITROËN dealer.
The ESP/ASR systems offer ex-
ceptional safety in normal driving,
but this should not encourage the
driver to take extra risks or drive at
high speed.
The correct functioning of these
systems depends on observation
of the manufacturer's recommen-
dations regarding the wheels (tyres
and rims), the braking components,
the electronic components and the
CITROËN assembly and operation
procedures.
After an impact, have these systems
checked by a CITROËN dealer.
The anti-skid regulation (also known
as Traction Control) optimises trac-
tion to prevent skidding of the wheels,
by acting on the brakes of the driving
wheels and on the engine.
The electronic stability programme acts
on the brake of one or more wheels
and on the engine to keep the vehicle
on the trajectory required by the driver,
within the limits of the laws of physics.

106
IX
D R I V I N G
PARKING BRAKE
Applying

 Pull the parking brake lever fully
up to immobilise your vehicle.
Releasing

 Pull the parking brake lever gently,
press the release button then lower
the lever fully.
When the vehicle is being driven,
if this warning lamp and the STOP
warning lamp come on, accompa-
nied by an audible signal and a mes-
sage on the multifunction screen,
this indicates that the parking brake
is still on or has not been properly
released.
When parking on a slope, direct
your wheels against the pavement,
apply the parking brake and engage
a gear.
5-SPEED MANUAL GEARBOX
Starting the vehicle

 Check that the gear lever is in
neutral.

 Do not touch the accelerator.

 For Diesel engines: turn the
key to position M and wait until
the pre-heating warning lamp
switches off if it has come on.

 Operate the starter, turning the
key until the engine starts (no
more than ten seconds).

 In temperatures lower than 0 °C,
declutch while operating the
starter to facilitate starting. Engaging reverse gear

 Push the gear lever to the
right then rearwards.
Only engage reverse gear when
the vehicle is stationary with the
engine at idle.

108
IX
D R I V I N G
Displays on the instrument panel
- The selector position is displayed in the instrument panel, on the left
on multifunction screens A and C
and on the right on the NaviDrive
multifunction screen.
- A back-lit position grille associ- ated with the selector shows the
position selected. Moving off

When the ignition is on, lighting of
the service warning lamp, accom-
panied by an audible signal and
the message "Gearbox faulty" in-
dicates a malfunction.
Consult a CITROËN dealer.
For safety:

 Position N can only be disen-
gaged if you are pressing the
brake pedal.

 If the gearbox is in position N
but the selector position is diffe-
rent, reposition the selector on N
in order to be able to start.
 To start the engine, the selector
must be in position N .

 Press fi rmly on the brake pedal.

 Operate the starter.

 When the engine is running,
place the selector on R , A or M
as desired.

 Check, in the instrument panel,
the position engaged.

 Release the brake pedal and
accelerate.
If the selector is not in position N ,
and/or if the brake pedal is not
pressed, the corresponding warning
lamp(s) are displayed and a mes-
sage informs you that at least one of
these two conditions is not met.
In this case, the engine will not start,
recommence the above procedure.
Engaging reverse gear
To engage reverse gear, move the
selector to R .

Only attempt to select reverse gear
when the vehicle is stationary.
If the vehicle is moving rapidly, if an in-
advertent attempt to engage reverse
gear is made, the warning lamp N will
fl ash and your vehicle will go auto-
matically into neutral. To re-engage a
gear, you have only to reposition the
selector on A , M or R .
Reverse gear

111
IX
D R I V I N G
Operation in manual mode

 Move the selector to position M .

Paddle controls behind the steering
wheel
The paddles behind the steering
wheel give you access to the six for-
ward gears. - In manual mode, it is not neces-
sary to release the accelerator
completely during gear changes.
- A request to change gear is ac- cepted only if the engine speed
permits it.
- For safety reasons, depending on the engine speed, a change
down may be performed auto-
matically.
In situations of high engine speeds
(heavy acceleration), a change up
will not occur unless the driver ope-
rates the paddle.
Acceleration
For optimum acceleration (e.g. to
overtake another vehicle), simply
press the pedal beyond the point of
resistance at the end of its travel, by
pressing down fi rmly.
Vehicle stationary, with
the engine running
In the event of a prolonged stop with
the engine running, the gearbox
changes automatically to neutral N . Stopping the vehicle
Before stopping the engine, you can
choose:

 to leave the vehicle in neutral;
move the selector to position N .

 to leave the vehicle with a gear
engaged ( R , A or M ); place the
selector in the chosen position
prior to stopping the engine. In
this case, the vehicle cannot be
moved.
In all cases, it is essential to apply
the parking brake. Check that the
parking brake warning lamp is on in
the instrument panel.
Do not use the accelerator to hold
your vehicle on a gradient. Use ei-
ther the brake pedal or the parking
brake.
Before doing anything in the en-
gine compartment, check that the
selector is in neutral N .
Changing gear

 Pull the " + " paddle to change up
a gear.

 Pull the " - " paddle to change
down a gear.
The paddles do not permit you to se-
lect neutral or reverse gear, or to exit
reverse gear.
- If the vehicle stops or reduces speed (for example when ap-
proaching a stop sign), the gear-
box changes down automatically,
to fi rst gear if needed.