INNOVATIONS FOR ON-BOARD COMFORT AND
interior of the C4 boasts a host of innovations in driving ergonomics,
life on-board and functional convenience. In addition, the C4 is also
available with an array of high-tech communication equipment.
C4 features a dashboard of clean design lines with a fixed-centred
controls steering wheel that places driving aids within easy reach of
the driver. At the same time, some of the instruments are positioned in
the centre of the dashboard so that the passengers can contribute to
With the C4, onboard comfort means safety and well-being.
The multifunctional fixed-centred controls steering wheel
fixed centre of the steering wheel features the main comfort functions
and driving aids. This layout places the emphasis on ergonomics and
easy use, thus promoting driving pleasure.
main characteristic of the C4 steering wheel is its fixed hub. The
centre of the wheel no longer turns with the rim. The technical
principle is simple: a toothed ring linked to the steering wheel
engages an inner pinion, itself linked to the steering column. The
space between the ring and the pinion is used to couple the fixed
components: the steering wheel hub and the steering column mounting.
A host of advantages
The multifunctional fixed-centred controls steering wheel offers the following advantages:
are grouped in the centre of the steering wheel, thus freeing up space
on the dashboard, and giving it a simpler, uncluttered look;
- significant improvements in ergonomics, since the
controls are grouped in a stable and easily accessible position, so
that the driver does not have to take his hands off the wheel;
- as the controls are on the steering wheel, they remain
easily visible, even at night, thanks to the use of illuminated
- in terms of safety, the fixed-centre design of the
steering wheel makes it possible to install a shape-optimised driver
airbag for improved driver protection.
Balanced distribution of controls
The controls are split into four different areas, each with four buttons and a knob:
top right-hand area groups the radio controls, with volume and station
settings, the memorised station search function, and the mute function;
- the bottom right-hand area provides access to the
multifunction screen, with – in particular – the on-board computer and
the NaviDrive navigation system;
- the top left-hand area is dedicated to the speed
limiter and cruise control. If the driver opts for one of these driving
aids, a pictogram will appear on the translucent instrument cluster,
showing the mode selected and the programmed speed;
- the bottom left-hand area groups the controls for
vehicle options. For example, the voice control of the NaviDrive
navigation system, the telephone controls, the driver-configured button
offering “black panel” lighting as the default function, or the air
The horn is on the lower part of the steering
wheel. Conventional driving functions (lighting and wiping) maintain
their usual layout, with standard stalk switches.
Driver-dedicated steering-wheel display
information intended specifically for the driver is displayed
immediately in front of him. This is the case, for example, of the rev
counter, the indicator and headlamp settings, and the mode/gear speed
selected on versions equipped with an automatic gearbox.
The background of the rev counter turns red to show that the engine has reached its maximum speed.
Fitted on the steering column, this display unit moves with the steering wheel to remain easily legible at all times.
A dashboard designed to promote relaxed driving and shared information
clean, soft lines of the dashboard create an uncluttered look that is
relaxing on the eye. Enhancing this effect, curves and relief are kept
to a minimum. The choice of colours and materials reflects the same
approach to design.
The dashboard is designed to share information, in the same way as on a people-carrier. The centre features three display units:
- a translucent instrument cluster,
- a multifunction screen with the on-board computer and NaviDrive navigation system,
- an air-conditioning display unit for vehicles equipped with automatic air conditioning.
The central translucent instrument cluster
The instrument cluster displays information on a translucent strip located in the centre of the dashboard.
The translucent instrument cluster provides the following information:
- vehicle speed,
- petrol gauge and range,
- water temperature
- total and partial mileage,
- information on the oil level,
- speed settings for the cruise control and speed limiter,
- maintenance indicator.
corresponding to the child safety function, the seatbelt warning lights
for the five seats, and ESP disablement are displayed on either side of
the translucent instrument cluster.
the instrument cluster is located in the centre of the dashboard, the
translucent strip captures the light perfectly. As the display contrast
adjusts instantly to the light, legibility is perfect in all
circumstances, by day and night, in full sunlight or in darkness.
LIFE ON BOARD
cabin of the C4 is designed to optimise passenger comfort. The cabin
layout, the ergonomics and characteristics of the seats and the
soundproofing – essential vehicle qualities – have all been addressed
in such a way as to create a relaxing interior ambience.
addition, the C4 features a range of equipment to create a feel-good
ambience, such as the glazed panoramic roof and the scented air
The scented air freshener
A scented air freshener, styled to match the dashboard design, also contributes to the relaxed onboard atmosphere.
A choice of nine fragrances
air freshener is available with a choice of nine fragrances: Citrus and
Passion, Amber and Sandalwood, Cinnamon and Ginger, Lotus flower,
Vanilla, Jasmin and Mimosa, Soft Lavander, Mint and Musk, Ylang and
All these fragrances were developed by Robertet, a company specialising in the creation of perfumes.
Customers will receive a kit with three fragrances (Vanilla, Mint and Musk, Ylang and Bamboo) on delivery of their car.
A fully integrated system
on the central air vent, the scented air freshener diffuses the
fragrance selected through the air conditioning system. A knob lets the
user switch the system off or adjust the quantity of perfumed air.
The perfumes come in the form of sealed, individual cartridges, so the fragrance can be changed at any time.
A cartridge lasts around two months, based on one hour of daily use. Refills are available from the CitroŽn network.
Seats tailored to a full range of tastes and body shapes
beyond their styling, which is an explicit statement of their
qualities, the seats of the C4 are designed to ensure an outstanding
level of comfort as well as excellent support.
Firm support, adapted to everybody’s tastes
reflect customers’ tastes more effectively, the C4 is equipped with
“comfort” or “vitality” seats, depending on the trim level selected.
seating ensures excellent damping and also provides sufficient support
to hold the occupant firmly in place without becoming restrictive.
Placing the emphasis on comfort in use, it is perfect for smooth,
“Vitality” seating is firmer to the touch
with more pronounced support. It corresponds to the pursuit of stronger
driving sensations and a more dynamic driving style.
addition to the conventional seat settings (fore-and-aft adjustment,
angle of back rest), the C4 also includes a number of other settings to
ensure that all the occupants can find a position to suit their body
shape and driving habits:
- steering wheel adjustable for height and reach,
- a driver’s seat adjuster that can be raised over 50 mm,
- manual lumbar adjustment on the driver’s seat.
C4 can also be equipped with an electrically controlled driver’s seat.
In this case, the settings are memorised to enable different drivers to
immediately find their usual settings.
Focus on acoustic comfort
To optimise acoustic comfort on board the C4, extensive studies were conducted on sealing, and sources of wind noise.
The main factors contributing to sound insulation are:
- the flag-shaped exterior rearview mirrors,
- the laminated windscreen with a damping film between two sheets of glass,
- the thick glass used for the side windows (3.82 mm instead of the 3 mm usually found on vehicles in this segment),
- the windscreen wipers integrated with the scuttle aperture,
- the anti-turbulence windscreen seal,
- the double door seals,
- the treating and filling of box sections.
Available as an option, the laminated side windows reinforce the filtering of wind noise and external nuisances.
Individual thermal comfort
satisfy requests for individual comfort functions at the front, the C4
features automatic two-zone air conditioning. The driver and front
passenger can then choose their own temperature settings.
The automatic air conditioning system is equipped with:
- a particulate and pollutant gas filter,
- an air recycling function, activated using controls on the steering wheel and air conditioning panel,
- a heat-reflecting windscreen, which considerably increases the reflection of ultraviolet rays.
its many stowage compartments, easily adaptable, modular passenger
compartment and boot foldaway partition, the C4 is an easygoing car
that adapts to the requirements and needs of the moment.
A host of practical and well designed stowage compartments
the dashboard to the consoles and door panels, the interior of the C4
possesses generous stowage, including: a vast glove box, bins in the
doors, can-holders, a drawer under the front passenger seat and nets on
the backs of the front seats.
Evenly distributed around
the passenger compartment, these stowage compartments were designed for
practical use. The closed stowage compartments have a damped opening,
the drawers are of the push/pull type and the ash tray is illuminated,
as is the glovebox, which may also be cooled. Some stowage compartments
are intended for specific purposes, such as the bag hook on the
passenger side of the central console or the overhead eyewear holder on
the driver’s side.
A number of stowage compartments are
closed in order to maintain the ambient, uncluttered atmosphere. For
example, the front central armrest, with fore-and-aft adjustment, has a
stowage compartment for CDs or the CD stacker. The console is also
equipped with a 12V socket and a cigarette lighter.
C4 features a 60/40 split-folding rear seat back and cushions. Simple
attachments make it easy to take advantage of the C4’s modular
The seat backs unlock easily and can be folded down:
- directly onto the seat cushions,
- with the seat cushions raised, in order to obtain additional space and a virtually flat load floor,
clips, after the fast-fit seat cushions are removed. In this
configuration, the loading space extends up to the front seats.
A new boot foldaway partition
boot of the C4 features a new partitioning system. This system is
designed to isolate and securely hold the objects placed in the boot.
A simple function lets the user fold out the partitions integrated in the boot sill to create three separate compartments.
folded, these partitions disappear totally into the thickness of the
boot sill. When partitioning is not used, the boot regains its full
The boot of the C4 can also be fitted with
a closed stowage bin on the sides, a stowage net and a range of hooks
to hang bags up.
HIGH-TECH COMMUNICATION EQUIPMENT
To enhance onboard comfort, the driver can choose from a range of hightech equipment including:
- the NaviDrive telematics system for stress-free driving,
- the JBL hi-fi system for high-level acoustics,
- the Bluetooth hands-free telephone system for safe communication.
Stress-free driving with NaviDrive
The C4 is available with the new-generation NaviDrive telematics system.
offers a number of essential functions: a GPS navigation system, a GSM
dual-band hands-free telephone with access to the address book and
audio system (radio and 5-CD stacker). At the same time, passengers can
use the screen or voice synthesis function to read the SMS messages
received over the phone.
The main functions can be
accessed easily using the steering-wheel controls, which can also be
used for the voice recognition and synthesis functions. NaviDrive can
be controlled by the user’s voice without any preliminary learning
time. This feature is very useful for making phone calls, finding your
way, or accessing the address book without risk. The system can also be
controlled directly using the unit integrated with the dashboard.
The functions are displayed on a black-and-white screen or on a large 16:9 colour screen.
was also designed to offer a number of additional customer services:
CitroŽn Emergency, CitroŽn Assistance and CitroŽn On Line.
with the GPS and telephone functions, CitroŽn Emergency makes it
possible to locate the vehicle if the driver has an accident or is ill,
for example, and to access the services of a call centre.
A customised hi-fi function
one of the world’s leading audio specialists, has developed a hi-fi
system specially for the C4. The new system is designed to offer
customised acoustics of superb quality.
The hi-fi system
comprises ten loudspeakers in six locations, together with a subwoofer
that is fitted in the boot. The presence of the subwoofer in the boot
provides wraparound sound quality and an extremely faithful
reproduction of musical material.
The system is controlled
by an amplifier located under the front passenger seat. This unit is
parametered with the acoustic settings defined and optimised for the
cabin of the C4. Both driver and passengers enjoy excellent sound
quality, along with acoustic reproduction that is perfectly adapted to
their environment in all circumstances.
Making telephone calls safely with Bluetooth
C4 features a Bluetooth hands-free telephone system (depending on the
country) in which the address book is displayed on the vehicle’s
This hands-free telephone system, based on Bluetooth wireless technology, is integrated with the passenger compartment.
is a convenient and safe option for making personal in-car calls from a
mobile phone, since the driver can make calls without taking the phone
out of his pocket. In this way, he can make phone calls from the car
without taking his eyes off the road or releasing the wheel.
make a hands-free call, the driver uses the ergonomic control function
on the wheel, and the microphone built into the roof. Conversations are
relayed over the C4’s audio system.
The driver selects the
name of a correspondent from the address book of his mobile phone,
using the steering wheel controls. He can also use the “voice
recognition” function to initiate a call.
The phone directory and the name of the correspondent are displayed on the vehicle’s multifunction screen.