2019 CITROEN C4 PICASSO Engine fault

104
Definitions
Anti-lock braking system (ABS)
and electronic brake force
distribution (EBFD)
These systems improve the stability and
manoeuvrability of your vehicle when braking
and contribute towards improved control in
corners, in particular on poor or slippery road
surfaces.
The ABS prevents wheel lock in the event of
emergency braking.
The EBFD system manages the braking
pressure wheel by wheel.
Emergency braking assistance
(EBA)
In an emergency, this system enables you to
reach the optimum braking pressure more
quickly and therefore reduce the stopping
distance.
It is triggered in relation to the speed at which
the brake pedal is pressed. This is felt by
a reduction in the resistance of the pedal and
an increase in the effectiveness of the braking.
Anti-slip regulation (ASR)
This system (also known as Traction Control)
optimises traction in order to limit wheel slip by
acting on the brakes of the driving wheels and
on the engine. It also improves the directional
stability of the vehicle on acceleration.
Dynamic stability control (DSC)
If there is a difference between the path
f ollowed by the vehicle and that required by
the driver, the DSC monitors each wheel and
automatically acts on the brake of one or more
wheels and on the engine to return the vehicle
to the required path, within the limits of the laws
of physics.
Intelligent traction control
( " Snow motion ")
Depending on version, your vehicle has
a
system to help driving on snow: intelligent
traction control.
This system detects situations of poor sur face
grip that could make it difficult to move off
or make progress on deep fresh snow or
compacted snow.
In these situations, the intelligent traction
control limits the amount of wheel spin to
provide the best traction and trajectory control
for your vehicle.
The use of snow tyres is strongly
recommended on sur faces offering low
levels of grip.
Anti-lock braking system
(ABS) and electronic brake
force distribution (EBFD)
When lit up continuously, this
warning lamp indicates a fault with
the ABS.
If this warning lamp comes on, in
conjunction with the STOP and ABS
warning lamps, an audible signal
and a
message, it means that the
electronic brake force distribution
(EBFD) is defective.
The vehicle retains conventional braking. Drive
carefully at moderate speed.
You must stop the vehicle as soon as it is
safe to do so.
In both cases, have the system checked by
a

CITROËN dealer or a qualified workshop as
soon as possible.
When changing wheels (tyres and rims),
ensure that these are approved for your
vehicle.
When operating under normal conditions,
the ABS may cause the brake pedal to
vibrate slightly.
Safety

105
In emergency braking, press the brake
pedal hard and maintain this pressure.
After an impact, have these systems
checked by a CITROËN dealer or
a


qualified workshop.
Anti-slip regulation (ASR)/
Dynamic stability control
(DSC)
Operation
These systems are activated automatically
every time the vehicle is started.
They come into operation in the event of
a problem with grip or trajectory.
Deactivation of the ASR
In exceptional conditions (starting a vehicle
w hich is bogged down, stuck in snow, on soft
ground, etc.), it may be advisable to deactivate
the ASR system, so that the wheels can turn
freely and regain grip. F

I
n the Driving
menu, select the " Driving
functions " tab, then " Traction control".
Deactivation is confirmed by the display of
a

message.
The ASR system no longer acts on the
operation of the engine or the brakes in the
event of an involuntary change of trajectory.
Reactivation of the ASR
The system is reactivated automatically every
time the ignition is switched back on or from
31
mph (50 km/h).
Below 31
mph (50 km/h), you can reactivate it
manually:
F

I
n the Driving menu, select the " Driving
functions " tab, then " Traction control".
Operating fault
The illumination of this warning
lamp, accompanied by an audible
signal and a
message, indicates that
there is a
fault with these systems. ASR/DSC
These systems offer increased safety
in normal driving, but they should not
encourage the driver to take extra risks or
drive at high speed.
It is in conditions of reduced grip (rain,
snow, ice) that the risk of loss of grip
increases. It is therefore important for your
safety to keep these systems activated in
all conditions, and particularly in difficult
conditions.
The correct operation of these systems
depends on observation of the
manufacturer's recommendations, not
only about the wheels (tyres and rims),
braking and electronic components but
also the assembly and repair procedures
used by CITROËN dealers.
To benefit in full from the effectiveness
of these systems in wintry conditions,
the vehicle must be fitted with four snow
tyres, allowing the vehicle to retain neutral
behaviour on the road.
This is indicated by flashing of this
warning lamp in the instrument
panel. Reactivate the system when grip conditions
allow.
Contact a
CITROËN dealer or a qualified
workshop to have the systems checked.
5
Safety

130
F With the electronic key inside the vehicle, press the " START/STOP " button.
The engine stops and the steering column
locks.
In some circumstances, it is necessary to turn
the steering wheel to lock the steering column.
On certain versions with the automatic gearbox
(EAT6/EAT8), the steering column does not
lock, but the gearbox locks in mode P .
If the vehicle is not immobilised, the
engine will not stop.
Never leave your vehicle with the
electronic key still inside.
Switching off the engine leads to a
loss of
braking assistance.
Key not detected
Back-up starting
When the electronic key is in the recognition
zone and after pressing the "START/STOP"
button, the engine does not start:
F

P
lace the gear selector at P or N for
vehicles with an automatic gearbox or
neutral for vehicles with a


manual gearbox.
F

P
lace the electronic key in the back-up
reader.
F

P
ress the brake pedal on vehicles with an
automatic gearbox, or fully depress the
clutch pedal with a


manual gearbox.
F

P
ress the "START/STOP" button.
The engine starts.
F

W

ith an automatic gearbox
, preferably
select mode P or N .
Back-up switch-off
F To confirm the instruction to switch off the
engine, press the " START/STOP" button for
about three seconds.
In the event of a
fault with the electronic key,
contact a
CITROËN dealer or a qualified
workshop.
Emergency switch-off
In the event of an emergency only, the engine
can be switched off without conditions (even
when driving).
Press the " START/STOP " button for about
three seconds.
In this case, the steering column locks as soon
as the vehicle stops. When the electronic key is not detected or is
no longer in the recognition zone, a message
appears in the instrument panel when closing
a door or trying to switch off the engine.
Driving

131
Switching the ignition on
(without starting)
With the electronic key in the reader or the
Keyless Entry and Starting key inside the
vehicle, pressing the "START/STOP" button,
with no action on the pedals, allows the
ignition to be switched on.
F

P
ress the "START/STOP" button, the
instrument panel comes on but the engine
does not start.
F

P
ress the button again to switch off the
ignition and allow the vehicle to be locked.
With the ignition on, the system
automatically changes to energy economy
mode when required to maintain an
adequate state of charge of the battery.
On certain versions with the automatic gearbox
(EAT6/EAT8), the steering column does not
lock.
Electric parking brake
The technology adopted for the electric
parking brake does not allow the fitment of
15-inch wheels.
Indicator lamp
This indicator lamp comes on in the
instrument panel and in the control
lever to confirm the application of
the parking brake. It goes off to confirm the release of the parking
brake.
The indicator lamp in the control lever flashes
during manual application or release.
After applying the parking brake, the
simultaneous flashing of the indicator lamps
in the instrument panel and in the control lever
warns you to secure the immobilisation of the
vehicle by engaging a
gear (with a manual
gearbox or by placing the selector at position
P with an automatic gearbox or by placing
a chock against one of the wheels (e.g. parking
on a very steep slope or a steep slope with
a weak battery).
In the event of a battery failure, the
electric parking brake no longer works.
As a safety measure, if the parking brake
is not applied, immobilise the vehicle by
engaging a

gear (with a

manual gearbox)
or placing a chock against one of the
wheels.
Call a CITROËN dealer or a qualified
workshop.
The system provides, in automatic operation,
the application of the parking brake on
switching off the engine and release as the
vehicle moves off.
The driver can take over at any time to apply
or release the parking brake, by operating the
control lever:
-

b

y briefly pulling
the control lever to apply
the brake,
-

b

y briefly pushing
the control lever, while
pressing the brake pedal, to release it.
Automatic mode is activated by default.
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Driving

134
F Take your foot fully off the brake pedal.
F P ush and hold the control lever in the
release direction for at least 10
seconds and
no more than 15
seconds.
F

R
elease the control lever.
F

P
ress and hold the brake pedal.
F

P
ull the control lever in the application
direction for 2


seconds.
Deactivation of the automatic
functions is confirmed by
illumination of this indicator lamp in
the instrument panel.
F

R
elease the control lever and the brake
pedal.
From now on, the parking brake can only
be applied and released manually using the
control lever.
Repeat this procedure to reactivate automatic
operation.
Reactivation of automatic operation is
confirmed by the indicator lamp in the
instrument panel going off.
Emergency braking
The emergency braking should only be
used in an exceptional situation. In the event of a
failure of the main ser vice
brake or in an exceptional situation (e.g. driver
taken ill, under instruction, etc.), a continuous
pull on the control lever will brake the vehicle.
Braking takes place while the control lever is
being pulled. It is interrupted if the control lever
is released.
The ABS and DSC systems ensure stability of
the vehicle during emergency braking.
If the emergency braking malfunctions,
the message "Parking brake fault" will be
displayed.
If the ABS and DSC systems malfunction,
signalled by the illumination of one or both
warning lamps in the instrument panel, then
stability of the vehicle is no longer guaranteed.
In this event, stability must be assured by the
driver by repeating alternate "pull-release"
actions on the control lever until the vehicle is
immobilised.
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 system only operates when:
-

t
he vehicle is completely stationary, with
your foot on the brake pedal,
-
c
ertain slope conditions are met,
-
t
he driver's door is closed.
The hill start assist system cannot be
deactivated.
Do not leave the vehicle while it is being
held temporarily by hill start assist.
If you need to get out of the vehicle with
the engine running, apply the parking
brake manually. Then verify that the
parking brake warning lamp (and the
warning lamp P on the electric parking
brake control lever) are on continuously.
Operation
Uphill, with the vehicle stationar y, the
vehicle is held for a shor t time when you
release the brake pedal:
-

p
rovided you are in first gear or neutral with
a


manual gearbox.
Driving

135
5-speed manual gearbox
Engaging reverse gear
Only engage reverse gear when the
vehicle is stationary with the engine at idle.
As a safety precaution and to facilitate
s tarting of the engine:
-

a
lways select neutral,
-

p
ress the clutch pedal.
Downhill, with the vehicle stationary and
reverse gear engaged, the vehicle is held
for a

shor t time when you release the brake
pedal.
Operating fault
- provided you are in mode D or M with an automatic gearbox.
If a
fault in the system occurs, these warning
lamps come on, accompanied by an alert
message. Contact a
CITROËN dealer or
a
qualified workshop to have the system
checked.6-speed manual gearbox
Engaging 5th or 6th gear
F Move the lever fully to the right to engage 5th
or 6th g e a r.
Failure to follow this advice could cause
permanent damage to the gearbox
(inadvertent engagement of 3
rd or 4th
gear).
Engaging reverse gear
F Raise the ring under the knob and move the gear lever to the left then for wards.
F

W

ith the clutch pedal fully down, place the
gear lever in neutral.
F

M

ove the gear lever to the right then pull it
back.
6
Driving

139
In sequential mode, it is not necessary to
release the accelerator pedal when changing
g e a r.
Changing from one gear to another only
occurs if the vehicle speed and engine speed
conditions allow; other wise the gearbox will
operate temporarily in automatic mode.
If the engine speed is too low or too high, the
gear selected flashes for a few seconds, then
the gear actually engaged is displayed.
Invalid value during manual operation
This symbol is displayed if a gear
is not engaged correctly (selector
between two positions).
You can change mode at any time by
moving the gear selector from D to M or
vice versa.
Stopping the vehicle
door is opened or approximately 45 seconds
a fter the ignition is switched off, an audible
signal sounds and a


message appears:
F

r
eposition the lever to position P ; the
audible signal stops and the message
disappears.
Whatever the parking circumstances, you must
apply the parking brake manually to immobilise
the vehicle if automatic operation has been
deactivated.
In all circumstances, ensure that the
selector is in position P before leaving
your vehicle.
Before switching off the engine, you can
engage position P or N to place the gearbox
in neutral. In both cases, apply the parking
brake to immobilise the vehicle, unless it is
programmed to automatic mode.
If the lever is not in position P , when the driver's In the event of a
battery failure, use the
chock to immobilise your vehicle.
Operating fault
If the gearbox malfunctions, the
Ser vice warning lamp comes on in
the instrument panel, accompanied
by a
message and an audible signal. Do not exceed 62
mph (100 km/h), local speed
restrictions permitting.
Have it checked by a CITROËN dealer or
a

qualified workshop.
In this case, the gearbox switches to back-up
mode and is locked in 3rd gear. You may then
feel a

substantial jolt when changing from P to
R and from N to R . This jolt will not cause any
damage to the gearbox.
Gear efficiency indicator
This system reduces fuel consumption by
recommending the most appropriate gear.
Operation
Depending on the driving situation and your
vehicle's equipment, the system may advise
you to skip one (or more) gear(s). You can
follow this instruction without engaging the
intermediate gears.
Gear efficiency recommendations are for
information only. In fact, the road layout, the
traffic density and safety remain the deciding
factors when choosing the best gear. The driver
therefore remains responsible for deciding
whether or not to follow the indications issued
by the system.
This function cannot be deactivated.
With an automatic gearbox, the system is
only active in manual mode.
6
Driving

141
Going into engine START mode
This indicator lamp goes off and the
engine restarts automatically.
-

W

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

W

ith an automatic gearbox :
•

g

ear selector in position D or M , when
you release the brake pedal,
•

o

r gear selector in position N and brake
pedal released, when you place the gear
selector in position D or M ,
•
o

r when you engage reverse gear.
Special cases: START mode
activated automatically
START mode is activated automatically if:
- y ou open the driver's door,
-
y

ou unfasten the driver's seat belt,
-

t
he speed of the vehicle exceeds 16 mph
(25
km/h) with a manual gearbox (2 mph
(3
km/h) with PureTech 110, 130, THP 165,
180
and BlueHDi 100, 130 versions), 2 mph
(3
km/h) with an automatic gearbox,
-

t
he electric parking brake is being applied,
-
c

ertain specific conditions (battery charge,
engine temperature, braking assistance,
air conditioning setting, etc.) where the
engine is needed for control of the system
or vehicle.
Deactivation/Manual
reactivation
- certain special conditions (battery charge, engine temperature, braking assistance,
exterior temperature, etc.) where the engine
is needed for control of the
system.
In this case, this indicator lamp
flashes for a
few seconds then goes
of f.
This operation is perfectly normal.
In this case, this indicator lamp
flashes for a
few seconds, then goes
of f.
This operation is perfectly normal.
In certain circumstances, such as to
maintain the temperature in the passenger
compartment, it may be necessary to
deactivate the Stop & Start system. The system can be deactivated at any time,
once the ignition is switched on.
If the engine is in STOP mode, it then restarts.
The Stop & Start system is reactivated
automatically every time the ignition is switched
on.
The Stop & Start is deactivated in the Driving

menu of the touch screen.
Select "Stop & Start" to deactivate the system.
It is indicated by this warning lamp
coming on.
Select "Stop & Start" again to reactivate the
function. It is indicated by this indicator lamp
coming on.
Use of the adaptive cruise control
deactivates the Stop & Start function.
Operating fault
If the system fails, this warning lamp
flashes for a few seconds before
lighting up continuously, associated
with a


message.
6
Driving