AUTOMATIC Citroen C4 2014 2.G Repair Manual

9
DRIVING
164





HILL START ASSIST

System which keeps your vehicle im-
mobilised temporarily (approximately
2 seconds) when starting on a gradi-
ent, the time it takes to move your foot
from the brake pedal to the accelerator
pedal.
This function is only active when:


- the vehicle is completely stationary,
with your foot on the brake pedal,

- when certain conditions of gradient
are met,

- with the driver’s door closed.
The hill start assist function cannot be
deactivated.

On an ascending slope, with the ve-
hicle stationary, the vehicle is held
for a brief moment when you release
the brake pedal:



- if you are in fi rst gear or neutral with
a manual gearbox,

- if you are in position A
or M
with an
electronic gearbox.

- if you are in position D
or M
with an
automatic gearbox.


Operation


Do not leave the vehicle while it
is being held in the hill start as-
sist phase.
If you need to leave the vehi-
cle while the engine is running,
apply the parking brake manu-
ally then ensure that the parking
brake warning lamp is on (not
fl ashing) in the instrument panel.

On a descending slope, with the ve-
hicle stationary and reverse gear en-
gaged, the vehicle is held for a brief
moment when you release the brake
pedal.




Operating fault

If a fault occurs with the system, these
warning lamps come on. Contact a
CITROËN dealer or a qualifi ed work-
shop to have the system checked.

9
DRIVING
166








TYRE UNDER-INFLATION
DETECTION

System which automatically checks the
pressures of the tyres while driving.
The system continuously monitors the
pressures of the four tyres, as soon as
the vehicle is moving.
A pressure sensor is located in the
valve of a each tyres (except the spare
wheel).
The system triggers an alert if a drop
in pressure is detected in one or more
tyres.
The tyre under-infl ation detection sys-
tem is an aid to driving which does not
replace the need for the driver to be
vigilant or to drive responsibly.
This system does not avoid the
need to check the tyre pressures
regularly (including the spare
wheel) and before a long jour-
ney.
Driving with under-infl ated tyres
adversely affects road holding,
extends braking distances and
causes premature tyre wear,
particularly under arduous con-
ditions (vehicle loaded, high
speed, long journey).

Driving with under-infl ated tyres
increases fuel consumption.
The tyre pressures for your vehi-
cle can be found on the tyre pres-
sure label (see the "Identifi cation
markings" section).
The tyre pressures must be
checked when the tyres cold
(vehicle stopped for 1 hour or
after driving for less then 6 miles
(10 km) at moderate speed).
Otherwise, add 0.3 bar to the val-
ues indicated on the label.

9
DRIVING
168











STOP & START

The Stop & Start system puts the en-
gine temporarily into standby - STOP
mode - during stops in the traffi c (red
lights, traffi c jams, or other...). The en-
gine restarts automatically - START
mode - as soon as you want to move
off. The restart takes place instantly,
quickly and silently.
Perfect for urban use, the Stop & Start
system reduces fuel consumption and
exhaust emissions as well as the noise
level when stationary.

Operation


Going into engine STOP mode

The "ECO"
warning lamp comes on
in the instrument panel and the en-
gine goes into standby automatically:


- with a manual gearbox
, at speeds
below 12 mph (20 km/h), when you
put the gear lever into neutral and
release the clutch pedal, If your vehicle is fi tted with
the system, a time coun-
ter calculates the sum of
the periods in STOP mode
d uring a journey. It resets itself to zero
every time the ignition is switched on
with the key.

- with an electronic gearbox
, at a
speed below 5 mph (8 km/h), when
you press the brake pedal or put the
gear lever into position N
. With an electronic gearbox, for
your comfort during parking
maoeuvres, STOP mode is not
available for a few seconds after
coming out of reverse gear.
STOP mode does not affect the
functionality of the vehicle, such
as braking, power steering, for
example.
Special cases: STOP mode
unavailable
STOP mode is not invoked when:


- the driver's door is open,

- the driver's seat belt is not fastened,

- the vehicle has not exceeded 6 mph
(10 km/h) since the last engine start
using the key,

- the electric parking brake is applied
or being applied,

- the engine is needed to maintain a
comfortable temperature in the pas-
senger compartment,

- demisting is active,

- some special conditions (battery
charge, engine temperature, brak-
ing assistance, ambient tempera-
ture...) where the engine is needed
to assure control of a system.
In this case, the "ECO"
warn-
ing lamp fl ashes for a few sec-
onds, then goes off. Never refuel with the engine in
STOP mode; you must switch off
the ignition with the key.

This operation is perfectly normal.

9
DRIVING
169

Deactivation

Going into engine START mode
At any time, press the "ECO OFF"

switch to deactivate the system.
This is confi rmed by the switch warning
lamp coming on accompanied by the
display of a message.
Special cases: START invoked
automatically
If the system has been deacti-
vated in STOP mode, the engine
restarts immediately. The "ECO"
warning lamp goes
off and the engine starts auto-
matically:


- with a manual gearbox
, when you
fully
depress the clutch pedal,

- with an electronic gearbox
:


●
gear lever in position A
or M
, when
you release the brake pedal,

●
or gear lever in position N
and the
brake pedal released, when you
move the gear lever to position A

or M
,

●
or when you engage reverse
gear.

For safety reasons or to ensure smooth
operation, START mode is invoked au-
tomatically when:


- you open the driver's door,

- you unfasten the driver's seat belt,

- the speed of the vehicle exceeds
15 mph (25 km/h) with a manual
gearbox or 7 mph (11 km/h) with an
electronic gearbox,

- the electric parking brake is being
applied,

- some special conditions (battery
charge, engine temperature, brak-
ing assistance, ambient tempera-
ture...) where the engine is needed
to assure control of a system.
In this case the "ECO"
warning
lamp fl ashes for few seconds,
then goes off.
With a manual gearbox in STOP
mode, if a gear is engaged with-
out fully depressing the clutch
pedal, a warning lamp comes
on or an alert message is dis-
played asking you to depress
the clutch pedal to restart the
engine.



Reactivation

Press the "ECO OFF"
switch again.
The system is active again; this is con-
fi rmed by the switch warning lamp go-
ing off and the display of a message.
The system is reactivated auto-
matically at every new start us-
ing the key.
This operation is perfectly normal.

9
DRIVING
170

Maintenance

In the event of a malfunction with the sys-
tem, the "ECO OFF"
switch warning lamp
fl ashes, then comes on continuously.
Have it checked by a CITROËN dealer or
a qualifi ed workshop.


Operating fault

Before doing anything under the
bonnet, deactivate the Stop &
Start system to avoid any risk of
injury resulting from automatic
operation of START mode.
This system requires a specifi c battery
with a special specifi cation and technol-
ogy (reference numbers available from
a CITROËN dealer or a qualifi ed work-
shop).
Fitting a battery not listed by
CITROËN introduces the risk of mal-
function of the system.
The Stop & Start system makes
use of advanced technology. All
work on this type of battery must
be done only by a CITROËN
dealer or a qualifi ed workshop.
In the event of a fault in STOP
mode, the vehicle may stall. All
of the instrument panel warning
lamps come on.
Depending on version, an alert
message may also be displayed
asking you to put the gear lever
into position N
and put your foot
on the brake pedal.
It is then necessary to switch off
the ignition, then restart the en-
gine using the key.

9
DRIVING
174

The system may suffer tem-
porary interference in certain
weather conditions (rain, hail...).
In particular, driving on a wet sur-
face or moving from a dry area to
a wet area can cause false alerts
(for example, the presence of a
fog of water droplets in the blind
spot angle is interpreted as a ve-
hicle).
In bad or wintry weather, ensure
that the sensors are not covered
by mud, ice or snow.
Take care not to cover the warn-
ing zone in the door mirrors or
the detection zones on the front
and rear bumpers with adhesive
labels or other objects; they may
hamper the correct operation of
the system.




To deactivate the system, press
this button again; the warning lamp
goes off.
The state of the system remains in
memory on switching off the ignition.

Operating fault

In the event of a fault, the warning lamp
in the button fl ashes then goes off.
Have it checked by a CITROËN dealer
or a qualifi ed workshop.
The system is automatically de-
activated when towing with a
towbar approved by CITROËN.

9
DRIVING
178
The cruise control system can-
not, in any circumstances, re-
place the need to respect speed
limits, nor can it replace the need
for vigilance and responsibility
on the part of the driver.
You are advised to keep your
feet near the pedals at all times.






CRUISE CONTROL

System which automatically maintains
the speed of the vehicle at the value
programmed by the driver, without any
action on the accelerator pedal.
The functions of this system are grouped
together on the steering mounted con-
trols.


1.
Cruise control mode selection dial.

2.
Speed programming/value decrease
button.

3.
Speed programming/value increase
button.

4.
Cruise control off/resume button.

5.
Memorised speeds display button.
(see "Memorising speeds")


Steering mounted controls

The programmed information is grouped
together in the instrument panel screen.

6.
Cruise control off/resume indica-
tion.

7.
Cruise control mode selection indi-
cation.

8.
Programmed speed value.

9.
Selecting a stored speed.
(see "Storing speeds")


Displays in the instrument panel

Operation

The cruise control is switched on

manually: it requires a minimum ve-
hicle speed of 25 mph (40 km/h) and
engagement of:


- fourth gear on the manual gearbox,

- second gear on the electronic gear-
box system or automatic gearbox,
in sequential driving mode,

- position A
on the electronic gearbox
system or D
on an automatic gear-
box.
The cruise control is switched off
man-
ually or by pressing the brake or clutch
pedal or on triggering of the ESP sys-
tem for safety reasons.
It is possible to exceed the programmed
speed temporarily by pressing the ac-
celerator pedal.
To return to the programmed speed,
simply release the accelerator pedal.
Switching off the ignition cancels any
programmed speed value.

9
DRIVING
179
When the cruise control is
switched on, be careful if you
maintain the pressure on one of
the programmed speed changing
buttons: this may result in a very
rapid change in the speed of your
vehicle.
Do not use the cruise control on
slippery roads or in heavy traffi c.
On a steep descent, the cruise
control will not be able to prevent
the vehicle from exceeding the
programmed speed.
On steep climbs or when towing,
the programmed speed may not
be reached or maintained.
To avoid any risk of jamming of
the pedals:


- ensure that the mat is posi-
tioned correctly,

- never fi t one mat on top of
another.



Programming




Turn dial 1
to the "CRUISE"
po-
sition: the cruise control mode is
selected but is not switched on
(Pause).


Set the programmed speed by ac-
celerating to the required speed,
then press button 2
or 3
(e.g.:
70 mph (110 km/h)); the cruise
control system is activated (ON).
You can then change the programmed speed using but-
tons 2
and 3
:


- by + or - 1 mph (km/h) = short press,

- in steps of + or - 5 mph (km/h) = maintained press.
If storing speeds is available and activated on your vehicle,
the programmed speed will stop at the closest stored speed;
refer to the corresponding section.



Stop the cruise control system by pressing button 4
:
this is confi rmed in the screen (Pause).


Exceeding the programmed speed

Intentional or unintentional exceeding of the programmed
speed results in fl ashing of this speed in the screen.
Return to the programmed speed, by means of intentional
or unintentional deceleration of the vehicle, automatically
cancels the fl ashing of the speed.


Exiting cruise control mode




Turn dial 1
to the "0"
position: the cruise control mode
is deselected. It disappears from the screen.


Switch on the cruise control again with another press
on button 4
.



Operating fault

In the event of a cruise control malfunc-
tion, the speed is cleared resulting in
fl ashing of the dashes.
Have it checked by a CITROËN dealer
or a qualifi ed workshop.

9
DRIVING
183
In addition to the rear parking sensors,
the front parking sensors are triggered
when an obstacle is detected in front
and the speed of the vehicle is still below
6 mph (10 km/h).
The front parking sensors are interrupted
if the vehicle stops for more than three
seconds in forward gear, if no further ob-
stacles are detected or when the speed
of the vehicle exceeds 6 mph (10 km/h).






Front parking sensors

Deactivation/Activation of the front
and rear parking sensors
The function is deactivated by pressing
this button. The indicator lamp in the
button comes on.
Pressing this button again reactivates
the function. The indicator lamp in the
button goes off.


Operating fault



The function will be deactivated
automatically if a trailer is being
towed or a bicycle carrier is fi t-
ted (vehicle fi tted with a towbar
or bicycle carrier recommended
by CITROËN).

In bad weather or in winter, en-
sure that the sensors are not
covered with mud, ice or snow.
When reverse gear is engaged,
an audible signal (long beep) in-
dicates that the sensors may be
dirty.
Certain sound sources (motor-
cycle, lorry, pneumatic drill, etc.)
may trigger the audible signals
of the parking sensor system.
In the event of a malfunction
of the system, when reverse
gear is engaged this warn-
ing lamp is displayed in the instrument
panel and/or a message appears in the
screen, accompanied by an audible
signal (short beep).
Contact a CITROËN dealer or a quali-
fi ed workshop.

The sound emitted by the speaker (front
or rear) indicates whether the obstacle
is in front or behind.

10
CHECKS
185











BONNET



Push the exterior safety catch B
to
the left and raise the bonnet.

Opening




Open the front left door.


Pull the interior bonnet release le-
ver A
, located at the bottom of the
door aperture.


Unclip the stay C
from its housing
on the back of the bonnet.


Fix the stay in the notch to hold the
bonnet open.
The location of the interior bonnet
release lever prevents opening of
the bonnet while the front left door
is closed.


Closing




Take the stay out of the support
notch.


Clip the stay in its housing on the
back of the bonnet.


Lower the bonnet and release it at
the end of its travel.


Pull on the bonnet to check that it is
secured correctly.

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).






Before doing anything under the
bonnet, switch off the Stop &
Start system to avoid any risk of
injury resulting from an automatic
change to START mode.