2012 Citroen DS3 engine

183Checks








Bonnet
Protects the components of the engine and provides access for checking levels.


Opening
)Open the front left door.)Pull the interior release lever A
, located at
the bottom of the door aper ture.
) Push the exterior safety catch Bto the leftand raise the bonnet. )
Unclip the bonnet stay Cfrom its housing, holding it by its foam protection.)
Fix the stay in the notch to hold the bonnetopen.

The location of the interior release lever prevents opening of the bonnet whilethe front left door is closed.

When the engine is hot, handle theexterior safety catch and the stay withcare.
Before doing anything under the bonnet, switch off the Stop & Startsystem to avoid any risk of injury resulting from an automatic change toSTA R T m o d e .

Closing








Running out of fuel
(Diesel)
If your vehicle is fitted with an HDI engine,
the fuel system must be primed if you run out of fuel.
This system consists of a priming pump and a
transparent pipe under the bonnet.
)Fill the fuel tank with at least five litres of
Diesel.)Open the bonnet. )Depending on version, unclip the cover togain access to the priming pump.)Squeeze and release the priming pump
until resistance is felt (could be from the
first application) and fuel appears in the
transparent pipe with the green connector. )Operate the star ter until the engine star ts.)Depending on version, put the cover back in position and clip it in place.)Close the bonnet.
If the engine does not star t at the firstattempt, do not try again. Operate the priming pump again, thenthe starter.
)Take the stay out of the support notch.)Clip the stay in its housing. )Lower the bonnet and release it at the end of its travel. )Pull on the bonnet to check that it is fully latched.

185
Checks














Petrol engines
1.
Screenwash fluid reservoir. 2.Coolant header tank.3.Air filter.
4.
Brake fluid reservoir.
5. Battery.
6.Fusebox.
7. Engine oil dipstick.8.Engine oil filler cap.

Diesel engines
1.
Screenwash fluid reservoir.2.
Coolant header tank.3.
Air filter.
4.
Brake fluid reservoir.5.
Battery.
6.Fusebox.
7. Engine oil dipstick. 8.Engine oil filler cap.9.
Priming pump (on fuel filter).

187
Checks




























Checking levels
Check all of these levels regularly and top them up if necessary, unless other wise indicated.
If a level drops si
gnificantly, have the corresponding system checked by a CITROËN dealer or a qualified workshop.


Oil level
Engine oil change
Refer to the servicing booklet for details of theinterval 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 grade
The oil must be suitable for your engine and conform to the manufacturer'srecommendations.



Brake fluid level


Changing the fl uid

Refer to the servicing booklet for details of the
interval for this operation.


Fluid specifi cation

The brake fluid must conform to themanufacturer's recommendations and meet theDOT4 standard.
Th
e brake fluid level should be closeto the "MA X" mark. If it is not, check
the brake pad wear. The reading will only be correct if
the vehicle is on level ground and
the engine has been off for more than30 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 engine oil between services. CITROËNrecommends that you check the oil
level and top up if necessary, every 3 000 miles (5 000 kilometres).

Changing the coolant

The coolant does not have to be changed.


Fluid specifi cation

The coolant must conform to the
manufacturer's recommendations.



Screenwash fluid level


Fluid specifi cation

For optimum cleaning and to avoid freezing,
this fluid must not be topped up or replaced
with plain water.

Take care when carrying out checks under the bonnet as some parts of theengine can be very hot (risk of burns).

Coolant level
Top up the level when necessary.
Th
e coolant level should be close
to the "MA X" 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 ignition off.
On vehicles which are fitted with a particle emission filter, 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, unscrew the cap
by two turns to allow the pressure to drop.
When the pressure has dropped, remove the
cap and top up the level.

189Checks
Diesel additive level
(Diesel engine with particle
emission filter)

To p p i ng up

This additive must be topped up by a CITROËN
dealer or a qualified workshop without delay.

Used products
Avoid prolonged contact of used oil or fluids with the skin. Most of these fluids are harmful to health or indeed very corrosive.
Do not discard used oil or fluids intosewers or onto the ground.
Take used oil to a CITROËN dealer or a qualified workshop (France) or to an authorised waste disposal site. Th
e additive reservoir low level is
indicated by fixed illumination of
this warning lamp, accompanied by an audible
warning and a message in the multifunctionscreen.

Checks
Battery

Air filter and passenger compartment filter


Oil filter
Par ticle emission filter (Diesel)
Unless other wise indicated, check these components in accordance with the ser vicing booklet and according to your engine.
Other wise, have them checked b
y a CITROËN dealer or a qualified workshop.
The batter
y does not require any
maintenance.

However, check that the terminals
are clean and correctly tightened,
particularly in summer and winter.
When carrying out work on the battery, refer to
the "Practical information" section for details of
the precautions to be taken before disconnecting
the battery and following its reconnection. Re
fer to the ser vicing booklet for
details of the replacement inter vals
for these components.
Dependin
g 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 compar tment filter may
have an adverse effect on the performance
of the air conditioning system and generateundesirable odours.
Re
place the oil filter each time
the engine oil is changed.
Re
fer to the ser vicing booklet for
details of the replacement inter val
for this component. The
presence of this label, in par ticular with
the Stop & Star t system, indicates the use of a specific 12 V lead-acid battery with special
technology and specification, for which the
involvement of a CITROËN dealer or a qualified
wor
kshop is required when replacing or disconnecting the battery. Failure to observe this recommendation mayshor ten the life of the battery. Th
e start of saturation of theparticle filter is indicated by the
temporary illumination of this warning lamp
accompanied by a message in the multi-
function screen.
As soon as the traffic conditions permit,
regenerate the filter by driving at a speed of at
least 40 mph (60 km/h) until the warning lampgoes off.
If the warning lamp stays on, this indicates a low additive level.

On a new vehicle, the first par ticlefilter regeneration operations may be accompanied by a "burning" smell, which is perfectly normal.
Following prolonged operation of thevehicle at very low speed or at idle, you may, in exceptional circumstances,
notice the emission of water vapour at the exhaust on acceleration. This does not affect the behaviour of the vehicle or the environment.