2011 Citroen C4 DAG brakes

8
SAFETY
131
TYRE UNDER-INFLATION DETECTION
System which automatically and continu-
ously checks the pressure of the tyres
while driving.
Sensors fi tted in each valve trigger a
warning in the event of problem (speed
above 12 mph (20 km/h)).
This warning lamp is displayed
on the instrument panel and/or a
message appears in the screen,
accompanied by an audible signal,
to identify the wheel concerned.

Under-infl ated tyre
The STOP
warning lamp
comes on and/or this warn-
ing lamp is displayed on the
instrument panel, accompa-
nied by an audible signal and
a message in the screen iden-
tifying the wheel concerned.


)
Stop as soon as it is safe to do so,
avoiding any sudden movement of
the steering wheel and the brakes.

)
Repair or change the damaged
wheel (punctured or very defl ated
tyre), and have the tyre pressure
checked as soon as possible.

Puncture

Sensor(s) not detected or faulty
A message appears in the screen, ac-
companied by an audible signal, to
identify the wheel or wheels which are
not detected or to indicate a malfunc-
tion in the system.
Contact a CITROËN dealer or a quali-
fi ed workshop to replace the faulty
sensor(s).
This message is also displayed
when one of the wheels is away
from the vehicle (being repaired)
or when one or more wheels
without a sensor are fi tted.
If your vehicle is equipped with
a spare wheel, this is not fi tted
with a sensor. All repairs and changing of tyres
on a wheel fi tted with this sys-
tem must be carried out by a
CITROËN dealer or a qualifi ed
workshop.
If, when changing a tyre, you
install a wheel which is not de-
tected by your vehicle (example:
fi tting of snow tyres), you must
have the system reinitialised by
a CITROËN dealer or a qualifi ed
workshop.
The tyre under-infl ation detec-
tion system 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 have the tyre pressures
checked regularly (refer to the
"Identifi cation markings" sec-
tion) to ensure that the optimum
dynamic performance of the ve-
hicle is maintained and prevent
premature wear of the tyres, par-
ticularly in arduous driving condi-
tions (heavy load, high speed).
The tyre pressures must be
checked cold, at least once a
month. Remember to check the
pressure of the spare wheel.
The tyre under-infl ation detec-
tion system may experience
temporary interference due to
electro-magnetic emissions on a
frequency close to that used by
the system.


)
Check the tyre pressures as soon
as possible.
This check must be carried out when
the tyres are cold.

8
133
TRAJECTORY CONTROL SYSTEMS

Anti-slip regulation (ASR) and electronic stability programme(ESP)


The anti-slip regulation (also known as
Traction Control) optimises traction to
prevent skidding of the wheels, by act-
ing on the brakes of the driving wheels
and on the engine.
The electronic stability programme acts
on the brake of one or more wheels and
on the engine to keep the vehicle on the
trajectory required by the driver, within
the limits of the laws of physics.

Activation
These systems are activated automati-
cally each time the vehicle is started.
They come into operation in the event
of a grip or trajectory problem.
This is indicated by fl ashing of
this warning lamp in the instru-
ment panel.

(Intelligent Traction Control)

Your vehicle has a system to help driving
on snow: Intelligent Traction Control.
This automatic system continuously
checks for situations of diffi cult surface
adhesion that could make it diffi cult to
move off or make progress on deep
fresh snow or compacted snow.
In these situations, Intelligent Traction
Control
takes over from the ASR
sys-
tem, limiting the amount of wheel slip to
provide the best traction and trajectory
control, even without snow tyres and
with or without chains.
In extremely severe conditions (snow
on top of ice, sand, deep mud…), it can
be useful to deactivate the ESP/ASR

systems to allow a degree of wheel spin
and so recover grip.

Deactivation
In exceptional conditions (starting a ve-
hicle which is bogged down, stuck in
snow, on soft ground...), it may be ad-
visable to deactivate the ASR and ESP
systems, so that the wheels can move
freely and regain grip.


)
Press the "ESP OFF"
button, located
on the left below the steering wheel.

If this warning lamp comes on
in the instrument panel and
the indicator lamp in the button
comes on, this indicates that
the ASR and ESP systems are
deactivated.

9
DRIVING
155

Moving off



)
With your foot on the brake, select
position P
or N
.

)
Start the engine.
If this procedure is not followed, there
is an audible signal, accompanied by a
message in the multifunction screen.


)
With the engine running, press the
brake pedal.

)
Release the parking brake, unless it
is programmed to automatic mode.

)
Select position R
, D
or M
,

)
Gradually release the brake pedal.
The vehicle moves off immediately.

If position N
is engaged inadver-
tently while driving, allow the en-
gine to return to idle then engage
position D
to accelerate.

When the engine is running at
idle, with the brakes released,
if position R
, D
or M
is selected,
the vehicle moves even without
the accelerator being pressed.
When the engine is running,
never leave children in the ve-
hicle without supervision.
When carrying out maintenance
with the engine running, apply
the parking brake and select po-
sition P
.



Automatic operation



)
Select position D
for automatic

changing of the six gears.
The gearbox then operates in auto-
adaptive mode, without any intervention on the part of the driver. It continuously
selects the most suitable gear accord-
ing to the style of driving, the profi le of
the road and the load in the vehicle.
For maximum acceleration without
touching the lever, press the accelera-
tor pedal down fully (kick down). The
gearbox changes down automatically
or maintains the gear selected until the
maximum engine speed is reached.
On braking, the gearbox changes down
automatically to provide effi cient engine
braking.
If you release the accelerator sharply,
the gearbox will not change to a higher
gear for safety reasons.

Never select position N
while the
vehicle is moving.
Never select positions P
or R

unless the vehicle is completely
stationary.

Sport and snow programmes

These two special programmes supple-
ment the automatic operation in very
specifi c conditions of use.

Sport programme "S"


)
Press button "S"
, after starting the
engine.
The gearbox automatically favours a
dynamic style of driving.

S
appears on the instrument
panel.

Snow programme " 7
"


)
Press button " 7
", after starting the
engine.
The gearbox adapts to driving on slip-
pery roads.
This programme improves starting and
drive when traction is poor.

7
appears on the instrument
panel.

Return to automatic operation



)
At any time, press the button selected
again to quit the programme engaged
and return to auto-adaptive mode.

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.

315
ALPHABETICAL INDEX
A ABS and EBFD systems ............132
Accessories ................................210
Accessories socket,
12 V ................... 111, 112, 115, 119
Adjusting headlamps ..................100
Adjusting head restraints ..............72
Adjusting seat belt height ...........135
Adjusting the steering wheel ........78
Air conditioning (digital) ..........63, 66
Air conditioning (manual) .......63, 64
Air fi lter .......................................181
Air vents .......................................62
Alarm ............................................87
Anti-lock braking system (ABS) ... 132
Anti-pinch .....................................91
Anti-theft steering lock ..................81
Ashtray, portable ........................ 110
Assistance call ...................134, 224
Audible warning ..........................130
Audio streaming
(Bluetooth) ........................264, 290
Audio system ..................50, 52, 277
Automatic gearbox .............154, 182
Automatic illumination
of headlamps ........................96, 99
Automatic operation of hazard
warning lamps ..........................130
Automatic rain sensitive
windscreen wipers ............103, 104
Auxiliary sockets ........ 111, 265, 289
B Battery ................................181, 202
Battery, remote control ............82-84
Battery recharge .........................203
Bench seat, rear ...........................75
Blind spot sensors ......................162
Bluetooth (hands-free) .......248, 291B Bluetooth (telephone) .........248, 291
Bonnet ........................................175
Bonnet stay ................................175
Boot ..............................................90
Boot lamp ...........................108, 120
Brake discs .................................182
Brake lamps ...............................196
Brake pads .................................182
Brakes ........................................182
Braking assistance system .........132
C Capacity, fuel tank ........................94
CD ..............................................284
CD MP3 ..............................261, 285
Central locking .......................81, 85
Centre console ........................... 112
Changing a bulb ..................192-197
Changing a fuse ..................198-201
Changing a wheel ...............188-191
Changing a wiper blade .....105, 205
Changing the date ..............267, 302
Changing the remote
control battery ......................82, 83
Changing the time ........47, 267, 302
CHECK ...................................30, 46
Checking levels ..................179, 180
Checking the engine oil level .......43
Checking tyre pressures
(using the kit) ............................187
Checks ................................175-182
Child lock ....................................129

Children... 92, 122-129, 137, 139, 143
Child seats .........................122-128
Cigarette lighter .......................... 111
Clock ............................47, 267, 302
Closing the boot .....................81, 90
Closing the doors ...................81, 89C Cold climate screen ....................205
Colour and map
screen ..................55, 56, 229, 268

Connectors, audio ... 111, 265, 287, 289
Control stalk, wipers ............103-105
Coolant level ..............................179
Courtesy lamps ..........................106
Courtesy mirror .......................... 110
Cruise control .....................165, 168
Cup holder .................................. 112
Curtain airbags ...................140, 141
Customisation ..............................49
D Dashboard fusebox ....................199
Date (display) .....................267, 302
Daytime running lamps ...98, 192, 194
Deactivating the passenger
airbag .......................................139
Defrosting .....................................69
Diesel additive level ...................180
Diesel engine .......95, 176, 178, 216
Dimensions ................................221
Dipped beam ................96, 192, 194
Dipstick .................................43, 179
Directional lighting ..............101, 102
Direction
indicators ....99, 130, 192, 193, 196
Door mirrors ...................76, 77, 162
Doors ............................................89
Doors emergency control .............86
Door pockets ..............................109
Driving positions (storing) .............74
Dynamic emergency
braking .............................142, 145
E EBA (Emergency braking
assistance) ...............................132
Economy mode ..........................204