2021 CITROEN C4 AIRCROSS engine

102
Anti-theft protection
Electronic engine immobiliser
The keys contain an electronic chip which has
a secret code. When the ignition is switched
on, this code must be recognised in order for
starting to be possible.
This electronic engine immobiliser locks the
engine management system a few minutes
after the ignition is switched off and prevents
starting of the engine by anyone who does not
have the key.
In the event of a malfunction, you are informed
by a message in the instrument panel screen.
In this case, your vehicle does not start; contact
a CITROËN dealer as soon as possible.
Applying
F Pull the parking brake lever fully up to immobilise your vehicle.
Parking brake
Releasing
F Pull the parking brake lever up gently, press the release button A then lower the
lever fully. When the vehicle is being driven, if the parking
brake is still on or has not been fully released,
a
message appears in the screen.When parking on a slope, direct your
wheels against the kerb, apply the
parking brake, engage a gear or place
the gear lever in position P for vehicles
fitted with a CVT gearbox, and switch
off the ignition ("OFF" mode).
Driving

103
5-speed manual
gearbox
F Push the gear lever to the right then backwards.
Engaging reverse gear
6-speed manual
gearbox
F Move the lever fully to the right to engage 5th or 6th g e a r.
Engaging reverse gear
F Raise the ring under the knob and move the gear lever to the left then for wards.
Engaging 5th or 6th gear
Only engage reverse gear when the
vehicle is stationary with the engine at idle.
As a safety precaution and to facilitate
starting of the engine:
-

a
lways select neutral,
-

p
ress the clutch pedal. Only engage reverse gear when the
vehicle is stationary with the engine at idle.
As a safety precaution and to facilitate
starting of the engine:
-

a
lways select neutral,
-
p
ress the clutch pedal.
4
Driving

104
Gear shift indicator*System which reduces fuel consumption by advising the driver to change gear on vehicles fitted with a manual gearbox.
Operation
* Depending on engine.-
f
or a change up,
In the case of driving which makes
particular demands on the per formance
of the engine (firm pressure on the
accelerator pedal, for example, when
overtaking...), the system will not
recommend a gear change.
The system never suggests engaging
reverse gear.
The system intervenes only when driving
economically.
Depending on the driving situation and your
vehicle's equipment, the system may advise
you to skip one or more gears. You can
follow this instruction without engaging the
intermediate gears.
The gear recommendations should not
be considered compulsory. In fact, the
configuration of the road, the amount of traffic
and safety remain determining factors when
choosing the best gear. Therefore, the driver
remains responsible for deciding whether or not
to follow the advice given by the system.
This function cannot be deactivated. A symbol appears in the instrument panel
when the system suggests changing to a more
suitable gear:
or
-
f
or a change down.
Driving

106
Gear lever positions
P: park.
Immobilisation of the vehicle, parking brake
applied or not.
R : reverse gear.
With the vehicle stationary, keep your foot
on the brake pedal and push the gear lever
forwards.
N : neutral.
D : driving in automated mode.
Move the lever backwards to select this mode.
+/- :
m

anual mode with sequential gear changing.
Move the lever backwards, then to the left to
select this mode, then:
-

p
ush for ward to change up,
-

p
ull backward to change down. +
: gear changing in manual mode.
Press behind the "+/OFF" steering mounted
control paddle to change up.
- : gear changing in manual mode.
Press behind the "-" steering mounted control
paddle to change down.
Functions of the steering
mounted control paddles
Press the brake pedal firmly while
starting the engine.
Moving off
F Start the engine. From position P , parking brake applied:
Press the brake pedal firmly to
release the gear lever.
F

S
elect first gear (position D or +/- ) or
reverse (position R ).
"D" or "1" or "R" appear in the instrument
panel screen.
F

R
elease the parking brake, the vehicle
moves off on its own.
Driving

107
Stopping - Starting on a slope
It is essential to use the parking brake to
hold the vehicle on a slope and not the
accelerator pedal.
When starting on a slope, accelerate gradually
while releasing the parking brake.
Manual mode
F Select position +/-.
F U se the steering mounted controls or the
gear lever to change gear.
The gears engaged appear in succession in the
instrument panel screen.
The gear change instructions are only carried
out if the engine speed permits it.
You can change gear without taking your foot
off the accelerator pedal.
When decelerating, the gearbox changes down
automatically.
With the vehicle stationary, first gear is
engaged.
Automated mode
F Select position D .
"D" appears in the instrument panel screen.
The gearbox operates in auto-active mode,
without any action on the part of the driver.
It continuously selects the gear most suited to
the conditions of:
-

d
riving style,
-

r
oad characteristics,
-

v
ehicle load.
To optimise driving comfort and obtain the most
suitable gear, avoid sharp variations in the
pressure on the accelerator pedal.
For the best acceleration, when
overtaking another vehicle, for example,
press firmly on the accelerator going
beyond the point of resistance.
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Driving

108
Manual gear changing
In the automated mode, you can take over
control temporarily at any time using the
steering mounted controls.
The use of these controls permits manual
selection of the gears in situations which
require a faster change down than that offered
in automated mode (arrival at a roundabout,
exit from a car park with a steep gradient,
over taking...).
The gearbox engages the gear requested if
the engine speed permits it. The gear engaged
appears.
To return to the automated mode, do one of the
following:
-
p
ress the back of the "+/OFF" steering
mounted control 3 for approximately
2
seconds,
-

m
ove the gear lever quickly towards
position +/- and then return it to position D ,
-

s
top the vehicle.
Stopping the vehicle Operating fault
With the ignition on, if the message "Slow
down" or "Service required" appears in
the instrument panel screen, this indicates a
gearbox malfunction.
When a message is displayed, carry out the
following operations:
-

s
low down and stop your vehicle in a safe
place,
-

p
lace the lever in position P and let the
engine run,
-

o
pen the bonnet to allow the engine to
cool.
If the message disappears for a long period,
you can set off again.
If the message remains displayed or appears
frequently, contact a CITROËN dealer or a
qualified workshop without delay.
Before switching off the engine, you must place
the gear lever in position P
.
You must apply the parking brake to immobilise
the vehicle.
Driving

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