check engine Citroen C4 2012 2.G Owner's Guide

9
DRIVING
162





HILL START ASSIST

System which keeps your vehicle im-
mobilised temporarily (approximately
2 seconds) when starting on a gradi-
ent, the time it takes to move your foot
from the brake pedal to the accelerator
pedal.
This function is only active when:


- the vehicle is completely stationary,
with your foot on the brake pedal,

- when certain conditions of gradient
are met,

- with the driver’s door closed.
The hill start assist function cannot be
deactivated.

On an ascending slope, with the ve-
hicle stationary, the vehicle is held
for a brief moment when you release
the brake pedal:



- if you are in fi rst gear or neutral with
a manual gearbox,

- if you are in position A
or M
with the
electronic gearbox system.

- if you are in position D
or M
with an
automatic gearbox.


Operation


Do not leave the vehicle while it
is being held in the hill start as-
sist phase.
If you need to leave the vehicle
while the engine is running, apply
the parking brake manually then
ensure that the parking brake
warning lamp is on (not fl ashing)
in the instrument panel.

On a descending slope, with the ve-
hicle stationary and reverse gear en-
gaged, the vehicle is held for a brief
moment when you release the brake
pedal.




Operating fault

If a fault occurs with the system, these
warning lamps come on. Contact a
CITROËN dealer or a qualifi ed work-
shop to have the system checked.

10
CHECKS
179
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prefers

10
CHECKS
180











BONNET


)
Push the exterior safety catch B
to
the left and raise the bonnet.

Opening



)
Open the front left door.

)
Pull the interior bonnet release le-
ver A
, located at the bottom of the
door aperture.

)
Unclip the stay C
from its housing
on the back of the bonnet.

)
Fix the stay in the notch to hold the
bonnet open.
The location of the interior bonnet
release lever prevents opening of
the bonnet while the front left door
is closed.


Closing



)
Take the stay out of the support
notch.

)
Clip the stay in its housing on the
back of the bonnet.

)
Lower the bonnet and release it at
the end of its travel.

)
Pull on the bonnet to check that it is
secured correctly.

Do not open the bonnet in high
winds.
When the engine is hot, handle
the exterior safety catch and the
bonnet stay with care (risk of
burns).






Before doing anything under the
bonnet, switch off the Stop &
Start system to avoid any risk of
injury resulting from an automatic
change to START mode.

10
CHECKS
181










RUNNING OUT OF FUEL
(DIESEL)
1.6 litre HDi engine



)
Fill the fuel tank with at least fi ve
litres of diesel.

)
Open the bonnet.

)
If necessary, unclip the styling cover
for access to the priming pump.

)
Squeeze and release the priming
pump repeatedly until resistance is
felt (there may be resistance at the
fi rst press).

)
Operate the starter until the engine
starts (if the engine does not start
at the fi rst attempt, wait around
15 seconds before trying again).

)
If the engine does not start after a
few attempts, operate the priming
pump again then start the engine.

)
Clip the styling cover back in place.

)
Close the bonnet.








2 litre HDi engine



)
Fill the fuel tank with at least fi ve litres
of Diesel.

)
Open the bonnet.

)
Unclip the style cover for access to
the priming pump.

)
Slacken the bleed screw.

)
Squeeze and release the priming
pump repeatedly until fuel appears
in the transparent pipe with the
green connector.

)
Tighten the bleed screw.

)
Operate the starter until the engine
starts.

)
Put the style cover back in position
and clip it in place, ensuring that it
has clipped correctly.

)
Close the bonnet.

If the engine does not start fi rst
time, don't keep trying. Start the
procedure again from the begin-
ning.

On vehicle fi tted with HDi engines, the
fuel system must be primed if you run
out of fuel; refer to the engine com-
partment view on the "Diesel engine"
page.
If the tank on your vehicle is fi tted with
a misfuel prevention device, refer to the
section "Access - § Misfuel prevention
(Diesel)".

10
CHECKS
182














PETROL ENGINES

The various caps and covers allow access for checking the levels 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/Fuses.

6.
Fusebox.
7.
Air fi lter.

8.
Engine oil dipstick.

9.
Engine oil fi ller cap.

10
CHECKS
183
*
According to engine.














DIESEL ENGINES

The various caps and covers allow access for checking the levels of the various fl uids, for replacing certain components and
for priming the fuel system.


1.
Power steering reservoir.

2.
Screenwash and headlamp wash
reservoir.

3.
Coolant reservoir.
4.
Brake fl uid reservoir.

5.
Battery/Fuses.

6.
Fusebox.

7.
Air fi lter.
8.
Engine oil dipstick.

9.
Engine oil fi ller cap.

10.
Priming pump * .

11 .
Bleed screw * .

10
CHECKS
184

























CHECKING LEVELS

Check all of these levels regularly and
top them up if necessary, unless other-
wise indicated.
If a level drops signifi cantly, have the
corresponding system checked by a
CITROËN dealer or a qualifi ed work-
shop.

When working under the bonnet,
take care, as certain areas of the
engine may be extremely hot (risk
of burns).
The reading will only be correct if
the vehicle is on level ground and
the engine has been off for more
than 30 minutes.
The check is carried out either when the
ignition is switched on using the oil level
indicator in the instrument panel, or using
the dipstick.
It is normal to top up the oil level between
two services. CITROËN recommends that
you check the oil level, and top up if neces-
sary, every 3 000 miles (5 000 kilometres).

Oil level


Engine oil change
Refer to the servicing booklet for the
interval for this operation.
In order to maintain the reliability of the
engine and emission control system,
the use of additives in the engine oil is
prohibited.
Oil specifi cation
The oil must correspond to your engine
and conform to the manufacturer's rec-
ommendations.



Brake fluid level

The brake fl uid level should be
close to the "MAX" mark. If it is
not, check the brake pad wear.

Changing the fl uid
Refer to the servicing booklet for the
interval for this operation.

Fluid specifi cation
The brake fl uid must conform to the
manufacturer's recommendations and
meet the DOT4 standard.



Power steering fluid level

The power steering fl uid level
should be close to the "MAX"
mark. Unscrew the cap, with
the engine cold, to check the
level.


Coolant level

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 operate with the ig-
nition off.

On vehicles which are fi tted with a par-
ticle emission fi lter, the fan may oper-
ate after the vehicle has been switched
off, even if the engine 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, unscrew
the cap by two turns to allow the pres-
sure to drop. When the pressure has
dropped, remove the cap and top up
the level.

Changing the coolant
The coolant does not have to be
changed.

Coolant specifi cation
The coolant must conform to the manu-
facturer's recommendations.

10
CHECKS
185








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 corro-
sive.
Do not discard used oil or fl uids
into sewers or onto the ground.
Take used oil to a CITROËN
dealer or a qualifi ed workshop
(France) or to an authorised
waste disposal site.










Additive level (Diesel with
particle emissions filter)
According to your version of instrument
panel, the additive reservoir low level is
indicated by:

Topping up
The reservoir must be topped up with-
out delay by a CITROËN dealer or a
qualifi ed workshop.


- fi xed illumination of the par-
ticle emissions fi lter warning
lamp, accompanied by an au-
dible signal and a message
that the particle emissions fi l-
ter additive level is too low,

- fi xed illumination of the
service warning lamp, ac-
companied by an audible
signal and a message that
the particle emissions fi lter additive level is too low. or

Screenwash/headlamp wash
level
Specifi cation of the fl uid
To ensure optimum cleaning and to
avoid freezing, the fl uid should never be
topped up or replaced by plain water.


To check the level or top up the
fl uid on vehicle fi tted with head-
lamp washers, immobilise the
vehicle and switch of the engine.


)
Open the bonnet and secure it with
the stay.

)
Open the screenwash reservoir fi ller
cap.

)
Take and pinch the level gauge to
block its breather.

)
Remove the gauge completely from
the reservoir to read the level in the
transparent section.

)
Top up if necessary.

)
Refi t the fi ller cap to the reservoir
and close the bonnet.

10
CHECKS
186





























CHECKS

Unless otherwise indicated, check
these components in accordance with
the servicing booklet and according to
your engine.
Otherwise, have them checked by a
CITROËN dealer or a qualifi ed workshop.


Battery

The battery does not require
any maintenance.
However, check that the ter-
minals are clean and correctly
tightened, particularly in sum-
mer and winter.
When carrying out work on the battery,
refer to the "Practical information" sec-
tion for details of the precautions to be
taken before disconnecting the battery
and following its reconnection.


Air filter and passenger compartment filter

Refer to the servicing booklet
for details of the replacement
intervals for these compo-
nents.

Oil filter

Replace the oil fi lter each time
the engine oil is changed.
Refer to the servicing booklet
for details of the replacement
interval for this component.










Particle emission filter (Diesel)

According to your version of instrument
panel, the start of saturation of the par-
ticle emissions fi lter is indicated by:


- fi xed illumination of the par-
ticle emissions fi lter warning
lamp, accompanied by an au-
dible signal and a message
that there is a risk of blockage
of the particle emissions fi lter,






The presence of this label, in particular
with the Stop & Start system, indicates
the use of a specifi c 12 V lead-acid bat-
tery with special technology and speci-
fi cation, for which the involvement of a
CITROËN dealer or a qualifi ed work-
shop is required when replacing or dis-
connecting the battery.
Failure to observe this recommendation
may shorten the life of the battery.

Depending on the environment (e.g.
dusty atmosphere) and the use of the
vehicle (e.g. city driving), replace them
twice as often if necessary
(refer to
the "Engines" section).
A clogged passenger compartment fi l-
ter may have an adverse effect on the
performance of the air conditioning sys-
tem and generate undesirable odours.
As soon as the traffi c conditions per-
mit, regenerate the fi lter by driving at a
speed of at least 40 mph (60 km/h) until
the warning lamp goes off.
If the warning lamp stays on, refer to
the "Additive level" section.
On a new vehicle, the fi rst opera-
tions of regeneration of the particle
emissions fi lter may be accom-
panied by the smell of "burning",
which is perfectly normal.
Following prolonged operation
of the vehicle at very low speed
or at idle, you may, in excep-
tional circumstances, notice the
emission of water vapour at the
exhaust on acceleration. This
does not affect the behaviour of
the vehicle or the environment. or

-
temporary illumination of
the service warning lamp,
accompanied by an audible
signal and a message that
there is a risk of blockage of
the particle emissions fi lter.

10
CHECKS
187






Manual gearbox

The gearbox does not re-
quire any maintenance (no oil
change).
Refer to the servicing book-
let for the details of the level
checking interval for this com-
ponent.







6-speed electronic gearbox
system
The gearbox does not re-
quire any maintenance (no oil
change).
Refer to the servicing booklet
for details of the checking in-
terval for this component.







Automatic gearbox

The gearbox does not re-
quire any maintenance (no oil
change).
Refer to the servicing booklet
for details of the level checking
interval for this component.






















Electric parking brake


This system does not require any
routine servicing. However, in
the event of a problem, have the
system checked by a CITROËN
dealer or a qualifi ed workshop.

For more information, see "Driving - Electric parking brake - § Operating faults".
















Brake pads

Brake disc wear

If a loss of effectiveness of this
system is noticed, the parking
brake must be checked, even
between two services.
Checking this system must be
done by a CITROËN dealer or a quali-
fi ed workshop.

















Only use products recommended
by CITROËN or products of equiv-
alent quality and specifi cation.

In order to optimise the opera-
tion of units as important as
the braking system, CITROËN
selects and offers very specifi c
products.
To avoid damaging the electrical
units, the use of a high pressure
washer in the engine compart-
ment is strictly prohibited
.



Manual parking brake

For information on checking
brake disc wear, contact a
CITROËN dealer or a quali-
fi ed workshop. Brake wear depends on the
style of driving, particularly in
the case of vehicles used in
town, over short distances. It
may be necessary to have the
condition of the brakes checked, even
between vehicle services.

Unless there is a leak in the system, a drop
in the brake fl uid level indicates that the
brake pads are worn.