2017 Citroen C4 AIRCROSS RHD engine

182
The various caps and covers allow access for
checking the levels of the various fluids, for
replacing certain components and for priming
the fuel system.
Diesel engines
1. Screenwash and headlamp wash fluid reservoir.
2.
C

oolant reservoir.
3.
B

rake fluid reservoir.
4.
B

attery.
5.
F

usebox.
6.
A

ir filter.
7.
E

ngine oil dipstick.
8.
E

ngine oil filler cap.
9.
P

riming pump*. 1.6
HDi 115 S&S
1.8 HDi 140
* According to engine.
Practical information

183
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).
Oil level
The check of the level is done with
the dipstick, located under the
bonnet. Refer to the description of
your engine compartment for the
position of the dipstick.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.
Oil specification
The oil must be the correct grade for your
engine and conform to the manufacturer's
recommendations.
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.
Dipstick
There are two marks on the dipstick:
A = maximum
If the level is above this
mark, contact a CITROËN
dealer or a qualified
workshop.
B = minimum
Top up the level through the
oil filler orifice, using the
correct grade of oil for your
engine. The level must never
be below this mark.
This check will only be correct if the vehicle is
on level ground and the engine has 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 km).
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.
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Practical information

184
Coolant level
The coolant level should be between
the two marks.When the engine is warm, the temperature of
the coolant is regulated by the fan.
As the cooling system is pressurised when the
engine is warm, 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.Fluid specification
The coolant must conform to the
manufacturer's recommendations.
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.
The cooling fan may star t after switching
off the engine: take care with ar ticles and
clothing that might become caught by the
fan blades.
To ensure that this measurement is reliable, the vehicle
must be parked on level ground with the engine cold.
Practical information

185
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
To p p i n g u p
The reservoir must be topped up without delay
by a CITROËN dealer or a qualified workshop.
Additive level (1.6 HDi 115 Diesel
versions with particle filter)
The additive reservoir low level is indicated by
the display of this message.
Fluid specification
For optimum cleaning, this fluid must not be
topped up with or replaced with plain water.
Screenwash and headlamp
wash fluid
To check or top up the fluid, stop the
vehicle, apply the parking brake and
switch off the engine.
F

O

pen the bonnet and secure it with the
st ay.
F

O

pen the filler cap for the screenwash
reservoir.
F

C

heck the level using the gauge, then top
up if necessary.
F

R

efit the cap on the reservoir and close
the

bonnet. In wintry conditions, the use of fluid with
an ethyl alcohol or methanol base is
recommended.
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Practical information

186
Checking components
12 V battery
Electrolyte level
For access to the 12 V Battery, refer
to the corresponding section. 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
If necessary, top up using distilled water,
removing the battery cap from each cell.
Check the electrolyte level at least once
a
month.
When carrying out work on the 12 V Battery,
refer to the corresponding section for
details of the precautions to be taken before
disconnecting the battery and following its
reconnection.
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.
The electrolyte level must be between the
"LOWER LEVEL" and "UPPER LEVEL" marks.
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.
Practical information

187
Manual gearbox
For servicing of the gearbox, refer to
the manufacturer's service schedule
for details of the interval for checking
this component.
"CVT" gearbox
For servicing of the "CVT" gearbox,
refer to the manufacturer's service
schedule for details of the interval for
checking this component.
Particle filter (Diesel)
The start of saturation of the particle filter is
indicated by the temporary illumination of this
warning lamp, accompanied by a message in
the instrument panel screen.As soon as the traffic conditions permit,
regenerate the filter by driving at a
speed of at least 25 mph (40 km/h) for
about 20 minutes (with the 1.6 litre HDi
engine, the minimum speed is 37 mph
(60 km/h)).
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.
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Practical information

205
Changing a fuse
The extraction tweezer and spare fuses are
located in the engine compartment fusebox.
To gain access to them:
F
O
pen the bonnet.
F

or more information on the Bonnet , refer
to the corresponding section.
F

U
nclip and remove the cover.
F

R
emove the tweezer.
F

C
arefully close the cover to ensure correct
sealing of the fusebox.
Access to the tools
Before changing a fuse, the cause of the failure
must be identified and rectified.
F

C
heck that the switch is in the " LOCK"
position or that the vehicle mode is " OFF".
F

I
dentify the faulty fuse by checking the
condition of its filament.
F

U
se the special tweezer to extract the fuse
from its location.
F

A
lways replace the faulty fuse with a fuse
of the same rating.
F

C
heck that the number etched on the box,
the rating etched on the top and the tables
below all agree.
Changing a fuse
Good Failed
CITROËN will not accept responsibility
for the cost incurred in repairing your
vehicle or for rectifying malfunctions
resulting from the installation of
accessories not supplied and not
recommended by CITROËN and
not installed in accordance with its
instructions, in particular when the
consumption of all of the additional
equipment connected exceeds 10
milliamperes. Your vehicle's electrical system is
designed to operate with standard or
optional equipment.
Before installing other electrical
equipment or accessories in your
vehicle, contact a CITROËN dealer or a
qualified workshop. The replacement of a fuse not
mentioned in the following tables may
cause a serious fault on your vehicle.
Contact a CITROËN dealer or a
qualified workshop.
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In the event of a breakdown

208
Engine compartment
fuses
Access to the fuses
F Unclip the cover and remove it completely.Fuse N°
Rating Functions
1 15 AFront foglamps.
4 10 AHorn.
5 7. 5 AAlternator.
6 20 AHeadlamp wash.
7 10 AAir conditioning.
9 20 AAlarm.
10 15 ADemisting, wipers.
11 -Not used.
12 -Not used.
The fusebox is placed in the engine
compartment (left-hand side).
In the event of a breakdown