2011 Citroen C4 Engine fault

9
DRIVING
142
ELECTRIC PARKING BRAKE

The electric parking brake combines
2 operating modes:


- Automatic Application/Release


Application is automatic when the
engine stops, release is automatic
on use of the accelerator (activated
by default),

- Manual Application/Release


The parking brake can be applied/
released manually by pulling control
lever A
.
If this warning lamp comes on
in the instrument panel, the au-
tomatic mode is deactivated.
Programming the mode

Depending on the country of sale of the ve-
hicle, the automatic application when the
engine is switched off and the automatic
release when you press the accelerator
can be deactivated.

It is recommended that you do
not apply the parking brake in
very cold conditions (ice) and
during towing (breakdown, cara-
van...). Deactivate the automatic
functions and release the parking
brake manually.

Manual application

With the vehicle stationary, to apply the
parking brake whether the engine is
running or off, pull
control lever A
.
The application of the parking brake is
confi rmed by:


- lighting of the braking warn-
ing lamp and of the P
warning
lamp in the control lever A
,

- display of the message
"Handbrake on".

Before leaving the vehicle, check
that parking brake warning lamp
in the instrument panel is on
fi xed, not fl ashing.
When the driver’s door is opened with
the engine running, a loud beep is heard
and a message is displayed if the park-
ing brake has not been applied, unless
the gear lever is in position P
(Park) in
the case of an automatic gearbox.
Activation/deactivation is per-
formed using the vehicle confi gu-
ration menu, refer to the section
on parameter settings for the
systems of your vehicle.

The parking brake is then applied and
released manually. When the driver's
door is opened, there is an audible signal
and a message is displayed if the brake
is not applied.

Do not place any object (packet
of cigarettes, telephone...) be-
tween the gear lever and the
electric parking brake control
lever.

9
DRIVING
145

Emergency braking

If a failure of the ESP system is
signalled by the illumination of
this warning lamp, then braking
stability is not guaranteed.
In this event, stability must be assured
by the driver by repeating alternate
"pull-release" actions on the control
lever A
.
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 A
will stop the vehicle.
The electronic stability programme
(ESP) provides stability during emer-
gency braking.
If the emergency braking malfunctions,
the message "Parking brake faulty" will
be displayed.
The emergency braking must
only be used in exceptional cir-
cumstances.
Emergency release

In the event of the electric parking brake
malfunctioning or the battery running
fl at, an emergency manual device can
release the parking brake.


)

Immobilise the vehicle (or keep it sta-
tionary, if the brake pedal is pressed),
with the engine running, by engaging
fi rst gear (manual gearbox), position P

(automatic gearbox) or M
or R
(6-speed
electronic gearbox system).

)
Switch off the engine but leave the igni-
tion on. If it is not possible to immobilise
the vehicle, do not operate the control
and contact a CITROËN dealer or a
qualifi ed workshop without delay.


)
Fetch the two vehicle blocks B
and the
release device C
, located under the
boot carpet.

9
DRIVING
148


Situations



Consequences




To apply the electric parking brake:


)
immobilise the vehicle and switch off the ignition.

)
pull the control for at least 5 seconds or until application
is complete.

)
switch on the ignition and check the switching on of the
electric parking brake warning lamps.
The application is slower than during normal operation.
To release the electric parking brake:


)
switch on the ignition.

)
pull the control and hold it for approximately 3 seconds
then release it.
If the braking warning lamp is fl ashing or if the warning
lamps do not come on with the ignition on, these procedures
will not work. Place the vehicle on level ground and have it
checked by a CITROËN dealer or a qualifi ed workshop. and possibly



fl ashing
Display of the message " Parking brake fault
" and of the
following warning lamps:




- Only the automatic application on switching off the en-
gine and automatic release on acceleration functions are
available.

- The manual application/release of the electric parking
brake and the emergency braking are not available.



and possibly



fl ashing
Battery fault:

- If the battery warning lamp comes on you must stop imme-
diately as soon as the traffi c allows. Stop and immobilise
your vehicle (if necessary, place the two chocks under the
wheels).

- Apply the electric parking brake before switching off the
engine.

9
DRIVING
153

On sharp acceleration, the gear-
box will not change up unless the
driver acts on the gear lever or
the steering mounted paddles.
Never select neutral N
while the
vehicle is moving.
Only engage reverse gear R

when the vehicle is immobilised
with the brake pedal pressed.



Manual gear changing

This selective gear change mode en-
ables you to overtake, for example, while
still remaining in automatic mode.


)
Operate the +
or -
steering mounted
control paddle.
The gearbox engages the gear request-
ed if the engine speed permits. AUTO
is
still displayed in the instrument panel.
After a few moments without any action
on the controls, the gearbox resumes
automatic control of the gears.
At very low speed, if reverse
gear is requested, this will only
be taken into account when the
vehicle is immobilised. The Foot
on brake
warning lamp may
fl ash in the instrument panel to
prompt you to brake.


Stopping the vehicle

Before switching off the engine, you
can choose to:


- move to position N
to engage neutral,

- leave the gear engaged; in this
case, it will not be possible to move
the vehicle.
In both cases, you must apply the park-
ing brake to immobilise the vehicle.
When immobilising the vehicle,
with the engine running, you
must place the gear lever in neu-
tral N
.
Before carrying out any work in
the engine compartment, check
that the gear lever is in neutral N

and that the parking brake is ap-
plied.

Operating fault

With the ignition on, the fl ashing of
AUTO
, accompanied by an audible sig-
nal and a message in the multifunction
screen, indicates a malfunction of the
gearbox.
Have it checked by a CITROËN dealer
or a qualifi ed workshop.

You must press the brake pedal
when starting the engine.
Whatever the circumstances,
you must manually apply the
parking brake when parking,
unless the parking brake is pro-
grammed in automatic mode.



Manual mode



)
When the vehicle has moved off, se-
lect position M
to change to manual
mode.

AUTO
disappears and the
gears engaged appear in suc-
cession in the instrument panel
screen.
The gear change requests are only car-
ried out if the engine speed permits.
It is not necessary to release the accel-
erator during gear changes.
When braking or slowing down, the
gearbox changes down automatically
to allow the vehicle to accelerate in the
correct gear.

9
DRIVING
156

Manual operation



)
Select position M
for sequential

changing of the six gears.

)
Push the lever towards the +
sign to
change up a gear.

)
Pull the lever towards the -
sign to
change down a gear.
It is only possible to change from one
gear to another if the vehicle speed and
engine speed permit; otherwise, the
gearbox will operate temporarily in au-
tomatic mode.

D
disappears and the gears
engaged appear in succes-
sion in the instrument panel.
If the engine speed is too low
or too high, the gear selected
fl ashes for a few seconds, then the ac-
tual gear engaged is displayed.
It is possible to change from position D

(automatic) to position M
(manual) at
any time.
When the vehicle is stationary or moving
very slowly, the gearbox selects gear M1

automatically.
The sport and snow programmes do
not operate in manual mode.
Invalid value during manual
operation
This symbol is displayed if a
gear is not engaged correctly
(selector between two posi-
tions).



Stopping the 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 door is opened
or approximately 45 seconds af-
ter the ignition is switched off,
there is an audible signal and a
message appears.


)
Return the lever to position P
;
the audible signal stops and
the message disappears.


You risk damaging the gearbox:


- if you press the accelerator
and brake pedals at the same
time,

- if you force the lever from po-
sition P
to another position
when the battery is fl at. When the ignition is on, the
lighting of this warning lamp,
accompanied by an audible
signal and a message in the multifunction
screen, indicates a gearbox malfunction.
In this case, the gearbox switches to
back-up mode and is locked in 3rd gear.
You may feel a substantial knock when
changing from P
to R
and from N
to R
.
This will not cause any damage to the
gearbox.
Do not exceed 60 mph (100 km/h), local
speed restrictions permitting.
Have it checked by a CITROËN dealer
or a qualifi ed workshop.
This warning lamp may also come on if
a door is opened.
Operating fault
To reduce fuel consumption
when stationary for long periods
with the engine running (traffi c
jam...), position the gear lever at
N
and apply the parking brake,
unless it is programmed in auto-
matic mode.

9
DRIVING
157
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:



- provided you are in fi rst gear or neu-
tral with a manual gearbox,

- provided you are in position A
or M

with the electronic gearbox system,

- provided 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 assist
phase.
If you need to leave the vehicle
while the engine is running, apply
the parking brake manually then
ensure that the parking brake
warning lamp is on (not fl ashing)
in the instrument panel.

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.

Operating fault

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

9
DRIVING
160

Maintenance

In the event of a malfunction with the
system, the "ECO OFF"
switch warning
lamp fl ashes, then comes on continu-
ously.
have it checked by a CITROËN dealer
or a qualifi ed workshop.
In the event of a fault in STOP mode,
the vehicle may stall. It is then neces-
sary to switch off the ignition and start
the engine again using the key.


Operating fault

Before working under the bon-
net, 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.

10
CHECKS
182
Manual gearbox
The gearbox does not re-
quire any maintenance (no oil
change).
Refer to the Maintenance and
Warranty Guide for the details
of the level checking interval
for this component.
6-speed electronic gearbox
system
The gearbox does not re-
quire any maintenance (no oil
change).
Refer to the Maintenance and
Warranty Guide for details of
the checking interval for this
component.
Automatic gearbox

The gearbox does not re-
quire any maintenance (no oil
change).
Refer to the Maintenance and
Warranty Guide for details of
the level checking interval for
this component.
Electric parking brake


This system does not require any
routine servicing. However, in
the event of a problem, have the
system checked by a CITROËN
dealer or a qualifi ed workshop.

For more information, see "Driving - Electric parking brake - § Operating faults".
















Brake pads

Brake disc wear

If a loss of effectiveness of this
system is noticed, the parking
brake must be checked, even
between two services.
Checking this system must be
done by a CITROËN dealer or a quali-
fi ed workshop.

















Only use products recommended
by CITROËN or products of equiv-
alent quality and specifi cation.

In order to optimise the opera-
tion of units as important as
the braking system, CITROËN
selects and offers very specifi c
products.
To avoid damaging the electrical
units, the use of a high pressure
washer in the engine compart-
ment is strictly prohibited
.



Manual parking brake

For information on checking
brake disc wear, contact a
CITROËN dealer or a quali-
fi ed workshop. Brake wear depends on the
style of driving, particularly in
the case of vehicles used in
town, over short distances. It
may be necessary to have the
condition of the brakes checked, even
between vehicle services.
Unless there is a leak in the system, a
drop in the brake fl uid level indicates
that the brake pads are worn.