engine Citroen DS3 2012.5 1.G Repair Manual

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.

193Checks
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.

195
Checks
Manual gearbox
Automatic
gearboxBrake
pads
Brake wear depends on the style
of driving, par ticularly in the case
of vehicles used in town, over shor t
distances. It ma
y be necessary to have the condition of the brakes checked, even between vehicle services. Unless there is a leak in the circuit, a drop in
the brake fluid level indicates that the brake pads are worn. The
gearbox does not require any
maintenance (no oil change).
Refer to the servicing booklet for the
details of the level checking interval for this component.















Only use products recommended by CITROËN or products of equivalent
quality and specification.
In order to optimise the operationof units as impor tant as the braking system, CITROËN selects and offers very specific products.
To avoid damaging the electrical units, the use of a high pressure washer in the engine compar tment is strictly prohibited.
The gearbox does not require any
maintenance (no oil change).
Refer to the ser vicing booklet for
details of the level checking inter val for this component.
Electronic gearbox
The gearbox does not require anymaintenance (no oil change).
Refer to the servicing booklet for
details of the checking interval for
this component.
For information on checkin
g brake
disc wear, contact a CITROËN dealer
or a qualified workshop.
Brake disc wear
Manual parking brake

If a loss of effectiveness of this system is noticed, the parking brake
must be checked, even between
tw
o services.
Checking this system must be done by aCITROËN dealer or a qualified workshop.

199Practical information
1. Sealing
) Uncoil the white pipe G
fully. )
Unscrew the cap from the white pipe.
)
Connect the white pipe to the valve of the
tyre to be repaired.
Repair procedure
Avoid removing any foreign bodieswhich have penetrated into the tyre.
)
Connect the compressor's electric plug to
the vehicle's 12 V socket.
) Star t the vehicle and leave the engine
running.
)Switch off the ignition. )Turn the selector A to the "sealant"
position.)Check that the switch B
is in position "O"
.
Take care, this product is harmful (e.g. ethylene-glycol, colophony...) if swallowed and causes irritation tothe eyes. Keep it out of reach of children.


Do not star t the compressor before connecting the white pipe to the tyre valve: the sealant product would beexpelled through the pipe.

201Practical information

2. Infl ation
)
Adjust the pressure using the compressor (to inflate: switch B
in position "I"
;
to deflate: switch B in position "O"and press button C), in accordance with the
vehicle's tyre pressure label (located on the
left hand door aperture).
A loss of pressure indicates that the
puncture has not been fully plugged; contact a CITROËN dealer or qualified
workshop for assistance.
) Remove and stow the kit. )
Drive at reduced speed (50 mph [80 km/h]max) limiting the distance travelled to
approximately 120 miles (200 km).
)Turn the selector A to the "air" position.)Uncoil the black pipe Hfully. )Connect the black pipe to the
valve of the wheel.
) Connect the compressor's electric plug to
the vehicle's 12 V socket.) Star t the vehicle again and leave
the engine running.
)Visit a CITROËN dealer or aqualified workshop as soon aspossible. You must inform the technician that you have used this kit. After inspection, the technician willinform you whether the tyre can berepaired or must be replaced.

203Practical information

Checking tyre pressures/inflating accessories


You can also use the compressor, without
injecting any product, to:


- check or adjust the pressure of your tyres,

- inflate other accessories (balls, bicycle
tyres...).
) Connect the compressor's electricalconnector to the vehicle's 12 V socket. )
Start the vehicle and let the engine run.)
Adjust the pressure using the compressor
(to inflate: switch Bin position "I";
to deflate: switch Bin position "O"
andpress button C ), according to the vehicle's
tyre pressure label or the accessory's
pressure label.) Remove the kit then stow it.


)Turn the selector A
to the "A ir"position.)Uncoil the black pipe Hfully. )Connect the black pipe to the
valve of the wheel or accessory.
If necessary, fit one of the adaptors supplied with the kit first.

Fuse N°RatingFunctions
F
820 AMultifunction screen, audio system, navigation radio, alarm control unit, alarm siren.
F
930 A12 V socket, portable navigation suppor t supply.
F1
015 ASteering wheel controls.
F1
115 AIgnition, diagnostic socket, automatic gearbox control unit.
F12 15
ARain/brightness sensor, trailer relay unit.
F1
35 AMain stop switch, engine relay unit.
F1415 AParking sensors control unit, airbag control unit, instrument panel, digital air conditioning, USB Box, Hi-Fi amplifier.
F1
530 ALocking.
F16
-Not used.
F1740 ARear screen and door mirrors demisting/defrosting.
S
H-PA RC shunt.

221Practical information

Engine compartment
fusebox

The fusebox is placed in the engine compartment near the battery (left-hand side).Access to the fuses
)
Unclip the cover.
)
Change the fuse (see correspondingparagraph). )
When you have finished, close the cover carefully to ensure the sealing of the fusebox.
All work on the fuses in this box,located on the battery, must be carried out by a CITROËN dealer or a qualifiedworkshop.

Fuse table
Fuse N°RatingFunctions
F120 A Engine control unit supply, cooling fan unit control relay, multifunction engine control main relay, injection pump(Diesel).
F
215 A Horn.
F
310 A Front/rear wash-wipe.
F420 A LED lamps.
F
515 A Diesel heater (Diesel), particle filter additive pump (Diesel), air flow sensor (Diesel), EGR electrovalve (Diesel),
blow-by heater and electrovalves (VTi).
F
610 A ABS/ESP control unit, secondary stop switch.
F
710 A Electric power steering, automatic gearbox.
F
825 A Starter control.
F9
10 A Switching and protection unit (Diesel).
F10
30 A Fuel heater (Diesel), blow-by heater (Diesel), fuel pump (VTi), injectors and ignition coils (petrol).
F1140 A Heater blower.