check engine CITROEN C4 AIRCROSS 2021 Handbook (in English)

93
Front armrest
Pull the right-hand lever to open the storage
compartment lid, which serves as an armrest.
To close, fold down the lid until it locks.Pull the left-hand lever to open the lid.
To close, fold down the lid until it locks.
This storage compartment may contain up
to 3 accessory sockets.This operates when the ignition switch is in the
"LOCK", "ACC" or "ON" position.
Open the cover of the front armrest to gain
access to the socket.
Upper storage compartment
Lower storage compartment
Check that the electrical equipment
operates on 12 V and that its maximum
electrical power is 120 W.
The prolonged use of electrical
equipment without running the engine
may discharge the battery.
12 V socket
(120 W max)
3
Comfort

109
Emergency release
If the battery is discharged or if the gear lever
locking mechanism is damaged, it is possible
for the gear lever to be locked in position P,
even when you press the brake pedal firmly. However, if you have to move the vehicle,
release the gear lever using the following
procedure:
F

A
pply the parking brake.
F

S
witch off the engine if necessary.
F

R
emove the cap A, using a flat screwdriver
covered with a cloth.
F

P
ress the brake pedal firmly.
F

P
ut the ignition switch into position ACC
(ACC mode, if you vehicle has the Keyless
Entry and Starting system).
F

I
nsert the screwdriver into the aperture.
F

W
hile pushing the screwdriver downwards,
move the gear lever to position N .
You must contact a CITROËN dealer
or a qualified workshop to have the
system checked
.
4
Driving

110
Hill start assist
System which keeps your vehicle immobilised
temporarily (approximately 2 seconds) when
starting on a gradient, the time it takes to
move your foot from the brake pedal to the
accelerator pedal.
This function is only active when:
-
t
he vehicle is completely stationary, with
your foot on the brake pedal,
-

w
hen certain conditions of gradient
are met,
-

w
ith the driver’s door closed.
The hill start assist function cannot be
deactivated.
On an ascending slope, with the vehicle
stationar y, the vehicle is held for a brief
moment when you release the brake pedal:
-

i
f you are in first gear or neutral with a
manual gearbox,
-

i
f you are in position D with the CVT
gearbox.Operation
On a descending slope, with the vehicle
stationary and reverse gear engaged, the
vehicle is held for a brief moment when you
release the brake pedal.
Do not leave the vehicle while it is being
held in the hill start assist phase.
If you need to leave the vehicle while
the engine is running, apply the parking
brake.
Operating fault
If a fault occurs with the system, this warning
lamp comes on, accompanied by a message
in the instrument panel screen. Contact a
CITROËN dealer or a qualified workshop to
have the system checked.
When the engine is not running,
including periods on standby with
the Stop & Start (AS&G) system, the
function is not operative.
driving

113
The system is reactivated automatically
at every new start using the key or the
START/STOP button.
Reactivation
Press the "AS &G O FF " switch again.
The system is active again; this is confirmed by
the "AS &G O FF " warning lamp going off in the
instrument panel or instrument panel screen.
Operating fault
In the event of a malfunction with the system,
the "AS &G O FF " warning lamp flashes in the
instrument panel or instrument panel screen,
and the system no longer operates.
have it checked by a CITROËN dealer or a
qualified workshop. This system requires a specific
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.
Maintenance
The "Auto Stop & Go" system makes
use of advanced technology. All work
on this type of battery must be done
only by a CITROËN dealer or a qualified
workshop.
In the event of a fault in STOP mode, the
vehicle may stall. The following warning lamps
come on in the instrument panel or instrument
panel screen:
It is then necessary to switch off the ignition,
then restart the engine using the key or the
START/STOP button.
4
Driving

188
Changing a fuse
The extraction tweezer and spare fuses are
fitted in the engine compartment fusebox.
To gain access to them:
F
O
pen the bonnet (refer to the "Checks"
section).
F

U
nclip the 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 failed fuse by checking the
condition of its filament.
F

U
se the special tweezer to extract the fuse
from its location.
F
a
l
ways 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
CITR
oËn
will not accept responsibility
for the cost incurred in repairing your
vehicle or for rectifying the 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
mil

liamperes.
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.
Practical information

195
Check the electrolyte level and top up if
necessary (see "Checking levels").
Starting using another
battery
F Connect the red cable to the positive terminal (+) of the flat battery A , then to the
positive terminal (+) of the slave battery B. F
C onnect one end of the green or black
cable to the negative terminal (-) of the
slave battery B .
F

C
onnect the other end of the green or black
cable to the earth point C on your vehicle
(engine mounting).
F

O
perate the starter, let the engine run.
F

W
ait until the engine returns to idle and
disconnect the cables.
F

R

aise the protective cover on the (+)
terminal.
7
Practical information

197
Removing a front or rear
wiper blade
F Raise the corresponding wiper arm.
F R emove the wiper blade, sliding it towards
the outside.
Changing a wiper
blade
Fitting a front or rear wiper
blade
F At the front, check the size of the wiper blade as the shorter blade is fitted on the
right-hand side of the vehicle.
F

P
ut the corresponding new wiper blade in
place and fix it.
F

F
old down the wiper arm carefully.
Automatic power cut-off to accessories
After the engine has stopped, when the
ignition switch is in the "ACC" position
(or the vehicle in "ACC" mode) you
can still use functions such as the audio
equipment, windscreen wipers, dipped beam
headlamps,
courtesy lamps, etc. for about
thirty
m

inutes.Cutting off
Once the thirty minutes have expired, the
power supply to the accessories will be
automatically cut off.
Restoring power
The power supply will be restored the next time
the ignition is switched on.
7
Practical information

202
Driving advice
Distribution of loads
F Distribute the load in the trailer so that the heaviest items are as close as possible to
the axle and the nose weight approaches the
maximum permitted without exceeding it.
Air density decreases with altitude, thus
reducing engine per formance. Above
1
000 metres, the maximum towing load must
be reduced by 10
% of the GTW and so on for
every 1
000 metres of altitude.
Refer to the "Technical Data" section for details
of the weights and towing loads which apply to
your vehicle.
Side wind
F Take into account the increased sensitivity to side wind.
Cooling
Towing a trailer on a slope increases the
temperature of the coolant.
As the fan is electrically controlled, its cooling
capacity is not dependent on the engine speed.
F

T
o lower the engine speed, reduce your
speed.
The maximum towing load on a long slope
depends on the gradient and the outside
temperature.
In all cases, pay attention to the coolant
temperature.
F

I
f this message is displayed, stop your
vehicle as soon as it is safe to do so.
Braking
Towing a trailer increases the braking distance.
Ty r e s
F Check the tyre pressures of the towing vehicle and of the trailer, observing the
recommended pressures.
Lighting
F Check the lighting and signalling on the trailer.
If the message flashes slowly, wait for the
engine to cool before topping up the level, if
necessary.
If the message flashes rapidly, contact a
CITROËN dealer or a qualified workshop
without delay.
Practical information

206
ToTaL & CITRoËn
Partners in performance and
protecting the environment
Innovation in the search for
performance
For over 40 year, the TOTAL Research and
Development departments have developed for
CITROËN, lubricants to match the latest technical
innovations on CITR
oËn
vehicles, both for
competition and for everyday motoring.
For you, this is an assurance that you will obtain of
the best per formance for your engine.
Optimum protection for
your engine
By having your CITROËN vehicle
serviced with TOTAL lubricants, you
are contributing towards improving the
life and per formances of your engine,
while also protecting the environment.
prefers
Checks

207
bonnet
F Open the right hand front door.
F P ull the interior bonnet release lever A ,
located at the bottom of the door aperture. Do not open the bonnet in high winds.
When the engine is hot, handle the
exterior safety catch and the bonnet
stay with care (risk of burns).
F
U
nclip the stay C from its housing on the
back of the bonnet.
F

F
ix the stay in the notch to hold the bonnet
open.ClosingF Take the stay out of the support notch.
F C lip the stay in its housing on the back of
the bonnet.
F

L
ower the bonnet and release it at the end
of its travel.
F

P
ull on the bonnet to check that it is
secured correctly. The location of the interior bonnet
release lever prevents opening of the
bonnet while the right hand front door
is closed.
Opening
F Push the exterior safety catch B to the left
and raise the bonnet. This message appears in the instrument panel
screen if the bonnet is not fully closed.
The cooling fan may star t after
switching off the engine: take care
with articles and clothing that might
become caught by the fan blades.
be

cause of the presence of electrical
equipment under the bonnet, it is
recommended that exposure to water
(rain, washing, ...) be limited.
8
Checks