CITROEN C4 Brochure & Specs page 34

CITROËN
C4
GLOSSARY
FIXED-CENTRED CONTROLS
STEERING WHEEL
A Citroën innovation that makes for safer driving in every
way. Whilst the rim of the steering wheel turns normally,
the centre hub remains static which means that all the
audio, information and driving controls operated from
here stay in exactly the same place. It also means that the
driver's airbag can be specially sculpted to deploy more
favourably than the round ones necessary in cars with
conventional steering wheels.
MYWAY
MyWay Colour Satellite Navigation is completely
integrated into the vehicle which avoids the risk of theft.
The design has been created for ease of use and with
steering wheel controls, navigating from your phone to the
satellite navigation couldn't be any easier.
MyWay allows you to define routes, stops and places of
interest with the added benefit of vocal instruction. MyWay
also provides live traffic updates of any congestion spots
or delays.
A GPS integrated aerial is built into the vehicle, to
maximise the reception of satellite information; therefore
permitting an accurate location of the car.
BLUETOOTH
USB BOx
Integrated Bluetooth® hands-free phone function with
dashboard-integrated USB socket and jack to plug in
a portable MP3 player. Menu navigation and music
selection via steering-mounted and dashboard radio
controls, with song titles displayed on the radio screen.
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XENON DUAL-FUNCTION
DIRECTIONAL HEADLAMPS
WITH CORNERING LIGHTS
A dynamic AFS with lamps that respond to the steering,
adjusting the direction of the beam in the direction of
the turn by up to 15 degrees. These headlamps contain
a directional twin xenon elliptical module for use in the
dipped and full-beam positions, and a complex surface
"long-range" halogen unit for full-beam only. This
combined assembly delivers an extremely high level of
forward visibility.
HIGH-PRESSURE DIRECT
INJECTION DIESEL ENGINE
Our HDi diesel engines operate with the fuel under
extremely high pressure, enabling microscopically
precise injection control. With this level of management
it's possible to inject at different times during the same
engine stroke allowing total control over the combustion
process. This has allowed our engineers to reduce carbon
monoxide emissions by 40%, unburned hydrocarbons by
50% and engine particulates by 60%. Fuel consumption
is 20% lower than a prechamber diesel engine, resulting
in an equivalent reduction in CO emissions and thanks to
2
the torque available at low engine speed it could be argued
SYSTEM WITH
®
that driveability is now better than in petrol engined cars.
DIESEL PARTICULATE FILTER
SYSTEM (DPFS)
Our unique DPFS collects exhaust particulates (soot)
that would have been bound for the air around us and
burns them off at 550 degrees C. This means that 'black
smoke' is eliminated completely. And because the filter is
constantly burning the particulates it is self-cleaning and
requires no maintenance.
ANTI-LOCK BRAKING ELECTRONIC STABILITY
SYSTEM (ABS) PROGRAMME (ESP)
Computer-controlled braking assistance designed to This is computer-controlled traction assistance and is
prevent the wheels from locking under extreme braking. provided primarily through the braking systems. The ESP's
This enables the car to continue being steered and control unit constantly compares where the driver intends
therefore controlled during this braking incident. Citroën going (through the position of the steering wheel) with
C4's ABS system is further enhanced with EBA and EBD where the vehicle is actually going and, if necessary, makes
(see below). speed corrections to each wheel individually through
braking or engine torque to keep the vehicle 'in line'.
ELECTRONIC BRAKEFORCE
ELECTRONIC GEARBOx
DISTRIBUTION (EBD)
SYSTEM (EGS)
A conventional ABS system cannot account for any of the
four wheels wanting to lock more quickly than the others A revolutionary alternative to conventional gearboxes,
(for example, two of the wheels may be on snow and two Citroën's innovative EGS allows you to operate in either
on tarmac). EBD reads the deceleration rate of each wheel 'manual' or 'automatic' modes. 'Manual' gear shifts
individually and applies the ABS principles accordingly. are made using the paddles by the steering wheel, or
the sequential lever. In 'automatic' mode the gearbox
EMERGENCY BRAKING
will control gear changes for you, maximising your drive
comfort and optimising fuel consumption – to the order of
ASSISTANCE (EBA)
3 to 5% lower than a conventional manual gearbox, also
helped by a sixth gear.
As drivers we find it difficult to instinctively brake very
hard, but this is often what is needed in those rare
ISOFIx
emergency situations. The EBA system recognises our
'attempt' to brake hard and in combination with the
A standardised and more simple method for installing
ABS and EBD systems instantly applies the maximum
child seats, each seat is 'clicked' into place via a three
stopping power possible.
point system. On Citroën C4, Isofix is installed on the two
outer rear seats.