engine Citroen DS3 2011 1.G Workshop Manual

The system is reactivated automatically
at every new star t using the key.


Reactivation

This system requires a battery with a special
specification and technology (reference
numbers available from a CITROËN dealer or a
qualified workshop).
Fitting a battery not listed by
CITROËN introduces the risk of malfunction of
the system. In the event of a malfunction with the system,
the "ECO OFF"
switch warning lamp flashes,
then comes on continuously.
Have it checked by a CITROËN dealer or a
qualified workshop.
In the event of a fault in STOP mode, the
vehicle may stall. It is then necessary to switch
off the ignition and star t the engine again using
the key.


Operating fault
Maintenance

Before working under the bonnet,
deactivate the Stop & Start system to
avoid any risk of injury resulting from
automatic operation of START mode.
The Stop & Star t system makes use of
advanced technology. All work on this
battery must be done by a CITROËN
dealer or a qualified workshop. Press the "ECO OFF"
switch again.
The system is active again; this is confirmed
by the switch warning lamp going off,
accompanied by a message in the screen.

010
Checks


This section describes access to the engine compar tment, the procedure
for bleeding the fuel system on Diesel engines after running out of fuel,
the location of various engine components needed to check the levels
and the main wearing parts.

179Checks








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 B
to the left
and raise the bonnet.
)
Unclip the bonnet stay C
from its housing,
holding it by its foam protection.

)
Fix the stay in the notch to hold the bonnet
open.
The location of the interior release lever
prevents opening of the bonnet while
the front left door is closed.
When the engine is hot, handle the
exterior safety catch and the stay
with care.





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.

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 to
gain 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 first
attempt, do not try again.
Operate the priming pump again, then
the star ter.

)
Take the stay out of the suppor t 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.

181Checks














Petrol engines



1.
Screenwash fluid reservoir.

2.
Coolant header tank.

3.
Air filter.

4.
Brake fluid reser voir.

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 reser voir.

5.
Battery.

6.
Fusebox.

7.
Engine oil dipstick.

8.
Engine oil filler cap.

9.
Priming pump (on fuel filter).

183Checks




























Checking levels

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


Oil level


Engine oil change

Refer to the Maintenance and Warranty Guide
for details of the inter val 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's
recommendations.



Brake fluid level


Changing the fl uid

Refer to the Maintenance and Warranty Guide
for details of the inter val for this operation.


Fluid specifi cation

The brake fluid must conform to the
manufacturer's recommendations and meet the
DOT4 standard.
The brake fluid level should be close
to 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 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 engine
oil between ser vices. CITROËN
recommends 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 water.



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



Coolant level

Top up the level when necessary.
The 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 par ticle
emission filter, the fan may operate 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 pressure to drop.
When the pressure has dropped, remove the
cap and top up the level.

185Checks









Diesel additive level
(Diesel engine with particle
emission filter)

Topping 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 into
sewers or onto the ground.
Take used oil to a CITROËN dealer or
a qualified workshop (France) or to an
authorised waste disposal site. A additive reser voir low level is
indicated by fixed illumination of
this warning lamp, accompanied by an audible
warning and a message in the multifunction
screen.

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 Warranty and Maintenance Record and according to your engine.
Other wise, have them checked by a CITROËN dealer or a qualified workshop.
The battery 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.


Refer to the Warranty and
Maintenance Record for details of
the replacement inter vals for these
components.
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 compar tment filter may
have an adverse effect on the per formance
of the air conditioning system and generate
undesirable odours.


Replace the oil filter each time the
engine oil is changed.
Refer to the Warranty and
Maintenance Record for details of
the replacement inter val for this
component.





The presence of this label, in particular 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
workshop is required when replacing or
disconnecting the battery.
Failure to obser ve this recommendation may
shor ten the life of the battery. The star t of saturation of the
par ticle 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 lamp
goes off.
If the warning lamp stays on, this indicates a
low additive level.

On a new vehicle, the first par ticle
filter regeneration operations may be
accompanied by a "burning" smell,
which is per fectly normal.
Following prolonged operation of the
vehicle 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.