ESP CITROEN C3 2021 Repair Manual

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Checking levels
Take care when working under the
bonnet, as certain areas of the engine
may be extremely hot (risk of burns)
and the cooling fan could start at any
time (even with the ignition off).
Engine oil level
The check is carried out either when
the ignition is switched on using the
oil level indicator in the instrument
panel for vehicles so equipped, or
using the dipstick.
Checking using the dipstick
Check all of these levels regularly, in line with the manufacturer's service schedule. 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.If you find that the level is above the A mark or
below the B mark, do not star t the engine.
-

I
f the level is above the MAX mark (risk
of damage to the engine), contact a
CITROËN dealer or a qualified workshop.
-

I
f the level is below the MIN mark, you
must top up the engine oil.
A = MA X
B = MIN
To ensure that the reading is correct,
your vehicle must be parked on a level
sur face with the engine having been off
for more than 30 minutes.
It is normal to top up the oil level between
two services (or oil changes). CITROËN
recommends that you check the level, and top
up if necessary, every 3 000 miles (5 000 kms). The location of the dipstick is shown in the
corresponding underbonnet layout view.
F

T
ake the dipstick by its coloured grip and
remove it completely.
F

W
ipe the end of the dipstick using a clean
non-fluffy cloth.
F

R
efit the dipstick and push fully down, then
pull it out again to make the visual check:
the correct level is between the marks A
and B .
Oil grade
Before topping up the oil or changing the oil,
check that the oil is the correct grade for your
engine and conforms to the manufacturer's
recommendations.
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After topping up the oil, the check when
switching on the ignition with the oil
level indicator in the instrument panel
is not valid during the 30 minutes after
topping up.
Topping up the engine oil level
The location of the oil filler cap is shown in the
corresponding underbonnet layout view.
F
U
nscrew the oil filler cap to reveal the filler
aperture.
F

A
dd oil in small quantities, avoiding any
spills on engine components (risk of fire).
F

W
ait a few minutes before checking the
level again using the dipstick.
F

A
dd more oil if necessary.
F

A
fter checking the level, carefully refit the
oil filler cap and the dipstick in its tube.
Engine oil change
Refer to the manufacturer's service schedule
for details of the interval for this operation.
In order to maintain the reliability of the engine
and emission control system, never use
additives in the engine oil. The brake fluid level should be close
to the "MA X" mark. If it is not, check
the brake pad wear.
Brake fluid level
Changing the fluid
Refer to the manufacturer's service schedule
for details of the interval for this operation.
Fluid specification
The brake fluid must conform to the
manufacturer's recommendations.
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To p p i n g u p
The reservoir must be topped up without delay
by a CITROËN dealer or a qualified workshop.
Diesel fuel additive level
(Diesel with particle filter)
The additive reservoir low level is
indicated by fixed illumination of this
warning lamp, accompanied by an
audible signal and a message that
the particle filter additive level is too
low.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.
Used products
AdBlue level
An alert is triggered when the reserve level is
reached.
To avoid statutory immobilisation of the vehicle,
the AdBlue must be topped up.
For more information on AdBlue and the SCR
system, and in particular topping up, refer to
the corresponding section.
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Checking components
12 V battery
The battery does not require any maintenance.
However, check regularly that the terminals
are correctly tightened (versions without quick
release terminals) and that the connections
are clean.Refer to the manufacturer's
service schedule for details of the
replacement intervals for these
components.
Air filter and passenger compartment filter
Replace the oil filter each time the
engine oil is changed.
Refer to the manufacturer's
service schedule for details of
the replacement interval for this
component.
Oil filter
Unless other wise indicated, check these components in accordance with the manufacturer's service schedule and according to your engine.
Other wise, have them checked by a CITROËN dealer or a qualified workshop.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.
A clogged passenger compartment filter may
have an adverse effect on the per formance
of the air conditioning system and generate
undesirable odours.
Particle filter (Diesel)
The start of saturation of the particle
filter is indicated by the fixed
illumination of this warning lamp
accompanied by a warning message.
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.
For more information on Checking levels and
the Diesel additive level in particular, refer to
the corresponding section.
On a new vehicle, the first particle
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.
For more information and the precautions to
take before starting work on the 12 V batter y
,
refer to the corresponding section.
Versions equipped with Stop & Start are
fitted with a 12 V lead-acid battery of
specific technology and specification.
Its replacement should be carried out
only by a CITROËN dealer or a qualified
workshop.
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AdBlue® and SCR system
for BlueHDi Diesel engines
To assure respect for the environment and
conformity with the new Euro 6 emissions
standard, without adversely affecting the
per formance or fuel consumption of Diesel
engines, CITROËN has taken the decision to
equip its vehicles with an effective system that
associates SCR (Selective Catalytic Reduction)
with a particle filter (FAP) for the treatment of
exhaust gases.
SCR system
Using a fluid called AdBlue® containing urea, a
catalytic converter turns up to 85% of nitrogen
oxides (NOx) into nitrogen and water, which are
harmless to health and the environment. Once the AdBlue
® tank is empty, a
s
ystem required by regulations prevents
starting of the engine.
If the SCR

system is faulty, the level
of emissions from your vehicle will no
longer meet the Euro 6 standard: your
vehicle becomes polluting.
In the event of a confirmed fault
with the SCR system, you must go
to a CITROËN dealer or a qualified
workshop as soon as possible: after
a running distance of 650 miles
(1

100 km), a system will be triggered
automatically to prevent engine starting.
In either case, a range indicator gives
you the distance you can travel before
the vehicle is immobilised.
The AdBlue® is held in a special tank with
a capacity of about 15 litres: this provides
a driving range of about 11 000 miles
(18

000

km). An alert is triggered automatically
to warn you when the reserve level is
reached: you can then drive about 1 500 miles
(2

400

km) before the tank is empty.
Freezing of the AdBlue
®
AdBlue® freezes at temperatures below
around -11°C.
The SCR system includes a heater
for the AdBlue
® tank, allowing you
to continue driving in all weather
conditions.
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Warning triangle
The triangle can be stored on the rear face of
the boot, secured by straps.
Assembling the triangle
As a safety precaution, before leaving your
vehicle to set up and install the triangle, switch
on the hazard warning lamps and put on your
high visibility vest.Refer to the instructions provided with the
triangle.
Positioning the triangle
Running out of fuel
(Diesel)
On vehicles fitted with Diesel engines, the fuel
system must be primed if you run out of fuel. For more information on Misfuel
prevention (Diesel) , refer to the
corresponding section.
If the engine does not start first
time, don't keep trying, but start the
procedure again from the beginning.
BlueHDi engines
F Fill the fuel tank with at least five litres of Diesel.
F

S
witch on the ignition (without starting the
engine).
F

W
ait around 6 seconds and switch off the
ignition.
F

R
epeat the operation 10 times.
F

O
perate the starter to run the engine.
F
P
lace the triangle behind the vehicle, as
required by local legislation.
Other HDi engines
(except BlueHDi version)
F A dd at least five litres of Diesel fuel to the
tank.
F

O
pen the bonnet.
F

I
f necessary, unclip the styling cover for
access to the priming pump.
F

S
queeze and release the priming pump
repeatedly until resistance is felt (there
may be resistance at the first press).
F

O
perate the starter to start the engine
(if the engine does not start at the first
attempt, wait around 15 seconds before
trying again).
F

I
f the engine does not start after a few
attempts, operate the priming pump again
then start the engine.
F

R
efit the styling cover and clip it in place.
F

C
lose the bonnet.
In the event of a breakdown

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1. 12 V compressor, with integral pressure gauge.
2.
S

ealant cartridge, with integral hose.
3.
S

peed limit sticker.
Composition of the kit
The speed limit sticker must be secured
to the interior of the vehicle in the
driver's field of vision, to remind you
that a wheel is in temporary use.
The vehicle's electric system allows the
connection of the compressor for long
enough to inflate a tyre after a puncture
repair.
This kit is installed in the storage box, under the
boot floor.
Comprising a compressor and a sealant
cartridge, it allows the temporary repair
of
a tyre so that you can drive to the nearest
garage.
It is designed to repair most punctures which
could affect the tyre, located on the tyre tread
or shoulder.
Temporary puncture repair kit
Access to the kit
Do not exceed a speed of 50 mph
(80 km/h) when driving with a tyre
repaired using this type of kit.
Tyre under-inflation detection
After repair of the tyre, the warning
lamp will remain on until the system is
reinitialised.
For more information on Under-
inflation detection , refer to the
corresponding section.
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In the event of a breakdown

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Should the pressure of one or more
tyres be adjusted, it is necessary to
reinitialise the under-inflation detection
system.
For more information on Under-
inflation detection, refer to the
corresponding section.
F

S

tart the compressor by placing the switch
at the " I" position and adjust the pressure
to the value shown on the vehicle's tyre
pressure label.
T

o deflate: press the black button on the
compressor pipe, at the valve connector.
F

O

nce the correct pressure is reached, put
the switch to the " O" position.
F

R

emove the kit then stow it.
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In the event of a breakdown

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Spare wheel
The tools are installed in the boot under the
f l o o r.
To gain access to them:
F
o
pen the boot,
F

l
ift the floor and remove it,
F

r
emove the storage box containing the
tools.
Access to the tools
List of tools
These tools are specific to your vehicle and
may vary according to the level of equipment.
Do not use them for any purpose other than
those detailed below.
1.
W

heelbrace.
F

or removing the wheel trim and removing
the wheel bolts.
2.
J

ack with integral handle.
F

or raising the vehicle.
3.
W

heel bolt cover removal tool.
F

or removing the wheel bolt cover on alloy
wheels or the central bolt cover (depending
on version).
4.
R

emovable towing eye.
Procedure for changing a wheel with a punctured tyre for the spare wheel using the tools provided with the vehicle.
For more information on To w i n g, refer to the
corresponding section.
The jack must only be used to change a
wheel with a damaged tyre.
The jack does not require any
maintenance.
The jack conforms to European
legislation, such as defined in the
Machinery Directive 2006/42/CE.
In the event of a breakdown

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1. Sidelamps (R10W).
2. Brake lamps (P21W).
3.
D

irection indicators (PY21W).
4.
R

eversing lamp (P21W), right-hand side or
Foglamp (PR21W), left-hand side.
Rear lamps
Changing bulbs
To reassemble, carry out these operations in
reverse order. F
S
pread the bulb holder retaining tabs and
remove the bulb holder.
F
T
urn the bulb a quarter turn and change it.
These bulbs are changed from inside the boot.
F

O

pen the boot.
F

R

emove the access cover on the
corresponding side trim.
F
D
isconnect the lamp unit connector.
F
S
lacken and remove the nut ( take care not
to drop it inside the wing ).
F

U

nclip the lamp unit and carefully remove
it by pulling it horizontally towards the
outside. Take care to engage the lamp unit in its
guides, while keeping it in line with the
vehicle.
Tighten sufficiently to ensure sealing,
but without damaging the lamp.
It may be necessary to use slip joint pliers or
the wheelbrace (depending on equipment) to
remove the nut.
In the event of a breakdown