2011 Citroen C4 RHD check engine
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9
DRIVING
149
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 requested
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
neutral 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
applied.
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.
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DRIVING
152
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
automatic 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.
Page 155 of 316
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DRIVING
153
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.
Page 158 of 316
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DRIVING
156
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 tech-
nology (reference numbers available
from a CITROËN dealer or a qualifi ed
workshop).
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.
Page 172 of 316
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CHECKS
170
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
lever A
, located at the bottom of the
door aperture.
)
Unclip the stay C
from its housing.
)
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.
)
Lower the bonnet and release it at
the end of its travel.
)
Pull on the bonnet to check that it is
secured correctly.
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 auto-
matic change to START mode.
Page 174 of 316
10
172
PETROL ENGINES
The various caps and covers allow access for checking the levels of the various fl uids and for replacing certain components.
1.
Power steering reservoir.
2.
Screenwash and headlamp wash
reservoir.
3.
Coolant reservoir.
4.
Brake fl uid reservoir.
5.
Battery/Fuses.
6.
Fusebox.
7.
Air fi lter.
8.
Engine oil dipstick.
9.
Engine oil fi ller cap.
Page 175 of 316
10
173
*
According to engine.
DIESEL ENGINES
The various caps and covers allow access for checking the levels of the various fl uids, for replacing certain components and
for priming the fuel system.
1.
Power steering reservoir.
2.
Screenwash and headlamp wash
reservoir.
3.
Coolant reservoir.
4.
Brake fl uid reservoir.
5.
Battery/Fuses.
6.
Fusebox.
7.
Air fi lter.
8.
Engine oil dipstick.
9.
Engine oil fi ller cap.
10.
Priming pump * .
11 .
Bleed screw * .
Page 176 of 316
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CHECKS
174
CHECKING LEVELS
Check all of these levels regularly and
top them up if necessary, unless other-
wise indicated.
If a level drops signifi cantly, have the corre-
sponding system checked by a CITROËN
dealer or a qualifi ed workshop.
When working under the bon-
net, take care, as certain areas
of the engine may be extremely
hot (risk of burns).
The reading will only be correct if
the vehicle is on level ground and
the engine has been off for more
than 30 minutes.
The check is carried out either when the igni-
tion is switched on using the oil level indicator
in the instrument panel, or using the dipstick.
Oil level
Engine oil change
Refer to the Maintenance and Warranty
Guide for the interval for this operation.
In order to maintain the reliability of the
engine and emission control system,
the use of additives in the engine oil is
prohibited.
Oil specifi cation
The oil must correspond to your engine
and conform to the manufacturer's rec-
ommendations.
Brake fluid level
The brake fl uid level should be
close to the "MAX" mark. If it is
not, check the brake pad wear.
Changing the fl uid
Refer to the Maintenance and Warranty
Guide for the interval for this operation.
Fluid specifi cation
The brake fl uid must conform to the
manufacturer's recommendations and
meet the DOT4 standard.
Power steering fluid level
The power steering fl uid level
should be close to the "MAX"
mark. Unscrew the cap, with the
engine cold, to check the level.
Coolant level
The coolant level should be
close to the "MAX" mark but
should never exceed it.
When the engine is warm, the
temperature of the coolant is regulated
by the fan. This can operate with the igni-
tion off.
On vehicles which are fi tted with a par-
ticle emission fi lter, the fan may operate
after the vehicle has been switched off,
even if the engine is cold.
In addition, as the cooling system is
pressurised, wait at least one hour after
switching off the engine before carrying
out any work.
To avoid any risk of scalding, unscrew
the cap by two turns to allow the pres-
sure to drop. When the pressure has
dropped, remove the cap and top up
the level.
Changing the coolant
The coolant does not have to be
changed.
Coolant specifi cation
The coolant must conform to the manu-
facturer's recommendations.