Discovery 4, the new fourth generation of Land Rover's supremely
versatile seven-seat is due to arrive in Australia in early
October. Revealed earlier this year at the New York Motor Show the
Discovery 4 features all new powerful and highly efficient engines,
fresh exterior identity and a more premium cabin. The class-leading
breadth of capability is extended even further with dynamic
improvements for both road and off-road driving, and Land Rover has
added a battery of user-friendly new technologies and features.
"The outgoing Discovery 3 has well over 100 international
awards to its name, including Australia's Best Car's Best
All-Terrain 4WD four years in a row. But we've found ways to
improve virtually every aspect of the vehicle's design and
engineering - some subtle, some major. New design signals
comprehensive engineering change under the skin, and now gives us
the Discovery 4," says Roger Jory, Land Rover Australia's
General Manager.
Star billing on the Discovery 4 goes to the two highly efficient
and refined new engines, the LR-TDV6 3.0 twin turbo diesel and
LR-V8 direct injection petrol engines:
Highly efficient and refined new LR-TDV6 3.0 twin turbo diesel:
- Class-leading 600Nm of torque (36% increase) and 180kW of power
(29% increase)
- Fuel consumption improved by 9%, delivering 9.3 l/100km on
combined EU cycle
- CO2 emissions reduced by almost 10% to 244 g/km
- Responsive 500Nm torque from idle in 500ms, delivers immediate
throttle response and effortless cruising ability (0-100 km/h in
9.6 seconds, 24% improvement)
- All-new 5.0-litre naturally aspirated V8 petrol featuring
cutting-edge technology:
- Delivers 276kW power (25% increase) and 510Nm of torque (16%
increase)
- Fuel consumption improved by 7%, delivering 13.9 l/100km
- CO2 emissions reduced by 8% down to 328g/km
- Highly acclaimed LR-TDV6 2.7 diesel will be retained for the
Australian market:
- Delivers 140kW of power and 440Nm of torque
Land Rover's engineers have also transformed the on-road ride
and handling for the new generation Discovery 4, and even improved
on the near-legendary off-road capabilities of its predecessor. The
comprehensive changes include new suspension components, revised
steering, larger brakes, improved traction control, and
enhancements to the award winning Terrain ResponseTM system, which
helps optimise the vehicle for virtually all on-road or off-road
driving situations.
The iconic exterior design has been updated, most obviously with
smoother and simpler surfaces at the front, including a new, more
aerodynamic bumper. The sportier new lights help give the vehicle
new character, and include LED technology front and rear. The
sophisticated new front headlights include available High Beam
Assist, automatically switching the high beam on or off, as
conditions require.
The interior is completely redesigned, with a transformed dash
and centre console, new seats and an array of new, user friendly
features.
"The new interior not only has a much more premium look and
feel, it's also gained improvement to its functionality. The new
console inclines towards the driver, the switchgear and controls
fall more readily to hand, and new LED Interior Mood Lighting in
HSE models helps make the cabin a more pleasant and more easily
used space after dark. We've made the interior environment more
premium too, with smoother surfaces, softer materials and close
attention to critical details such as stitching," says Gerry
McGovern, Land Rover Design Director.
User-friendly new features available for the Discovery 4 include
a Portable Audio Interface, gradient release, tow assist, high beam
assist, Keyless Entry and push button start. In addition a new
five-camera 'surround' system allows for easier parking, towing and
off road manoeuvring.
"The changes and upgrades for Discovery 4 transform many
aspects of the previous generation, at the same time as enhancing
the flexibility and versatility for which Discovery is famous. It
can carry huge loads in its spacious interior, climb mountains,
cruise across continents, haul trailers of up to 3.5 tonnes, or
transport seven family and friends in comfort. I can't think of a
more versatile vehicle anywhere," says Roger Jory.
For the Australian market the Discovery 4 will be available in
four different specification levels, the standard features for each
variant are as follows:
Discovery 4 2.7 TDV6
The multi award wining 2.7 TDV6 diesel engine forms the basis for
the new entry level Discovery 4. The 2.7 TDV6 has a Recommended
Price (before statutory and delivery charges) of $68,490. The
standard specification is as follows:
- 2.7 TDV6 diesel engine with variable geometry turbocharger
(140kW & 440Nm)
- 6-Speed adaptive automatic gearbox with CommandShift®
- Diesel Mis-Fuelling protection device
- Cruise control
- Push Button Start including electronic steering lock
- Terrain Response™ and Electric Park Brake
- Permanent four wheel Drive
- Centre electronic differential with low range transfer box
- Electronic cross linked air suspension with automatic load
levelling and multiple modes, access, normal, off-road, extended
height
- Power assisted, speed proportional steering (PAS)
- Rain sensing wipers and automatic headlamps
- Exterior mirrors - power adjustable, heated
- Door puddle lamps and footwell lamps.
- Headlamps - automatic and rain sensors with powerwash
- Front Fog Lamps
- Park Distance Control - Rear
- Asymmetrical two piece tailgate
- Tow Pack
- 18 inch 5 Spoke Alloy Wheels with 255/60 AT/V Rated Tyres
- Full Size Spare Alloy Wheel
- Automatic dimming interior mirror
- Electric windows with one touch open/close
- Climate control - automatic with air filtration and dual
controls
- 5 Seats with cloth trim
- Seats - Rear folding 65:35
- Leather trimmed steering wheel
- Harman/Kardon Audio System - 9 Speakers, Subwoofer, Radio,
Single Slot CD Player, Auxiliary Input, Audio Amplifier (240
Watts)
- 5" TFT (Thin Film Transistor Screen) and Driver Information
Centre
- Bluetooth® telephone connectivity and integration
- Auxiliary Power Sockets - Front, rear 2nd row and rear
loadspace
- Control Systems - Electronic Parking Brake (EPB), Slip Control
System includes: Electronic Brake-force Distribution (EBD),
All-terrain Anti-Lock Braking System (ABS), Electronic Traction
control (ETC), Dynamic Stability Control (DSC), Electronic
differential control, Emergency Brake Assist (EBA), Enhanced
Understeer Control (EUC), Hydraulic rear brake boost, Roll
Stability Control (RSC), Trailer stability assist and Hill Descent
Control (HDC) with Gradient Release Control (GRC)
- Airbags, full size driver & front passenger, driver &
front passenger side and head, rear outboard passenger head
airbags
- Remote Central Locking including auto lock on drive away
- Alarm System - Perimetric Security and passive engine
immobilisation
Discovery 4 3.0 TDV6 SE
The next model in the line up is the 3.0 TDV6 SE, featuring the all
new diesel engine with advanced sequential twin turbochargers, it
has a Recommended Price (before statutory and delivery charges) of
$81,990. In addition to the features found on the 2.7 TDV6, the 3.0
TDV6 SE also comes with the following as standard
specification:
- 3.0 TDV6 diesel engine with advanced sequential twin
turbochargers (180kW & 600Nm)
- 7 Seats with leather trim
- Bi-Xenon headlights with cornering lamps
- 19 inch 7-Spoke Alloy Wheel - 255/55 AT/V Rated Tyres
- Powerfold mirrors
- Third row head curtain airbags
- Third row map lamps
Discovery 4 3.0 TDV6 HSE
The 3.0 TDV6 HSE features the same all new 3.0 TDV6 diesel engine
as the SE model, however includes a much higher level of standard
specification, it has a Recommended Price (before statutory and
delivery charges) of $94,990. In addition to the features found on
the 3.0 TDV6 SE, the 3.0 TDV6 HSE also comes with the following as
standard specification:
- Premium Navigation System (Hard Disc Drive) with voice control
and off-road mapping
- Harman/Kardon (USB) Audio System - 9 Speakers including
Subwoofer, Radio, Single Slot CD Player, Portable Audio Interface,
Touch Screen, Audio Amplifier (240 Watts)
- Portable Audio Interface - allows connection of iPod, MP3
player and USB Mass Storage Device
- Rear view camera
- Park Distance Control - Front
- 19 inch 7-Split Spoke Alloy Wheel
- Rear Air Conditioning
- Illuminated front vanity mirrors
- Rear Luggage Net
- Interior Mood Lighting
- Electric seat driver's and passenger's adjustment (8/8 way),
with memory function for driver's seat and exterior mirrors
- Driver and passenger front armrests
- Driver power lumbar and passenger manual lumbar support
- Leather gear knob
Discovery 4 5.0 V8
The pinnacle of the Discovery 4 range is the 5.0 V8, with a
Recommended Price of $126,460 (before statutory and delivery
charges). In addition to the features found on the 3.0 TDV6 HSE,
the 5.0 V8 also comes with the following as standard
specification:
- 5.0 V8 normally aspirated petrol engine (276kW and 510Nm)
- Harman/Kardon LOGIC7 Surround (USB) Audio System - 14 Speakers
including Subwoofer, Radio, Single Slot CD Player, Portable Audio
Interface, Rear Seat Audio Controls, Rear Seat Headphone Modules,
DSP Amplifier (480 Watts)
- Rear Screen Entertainment Pack (includes DVD 6 disc changer, 2
headphones, remote control & Rear Headphone Module)
- Hybrid TV system
- Rear Electronic Differential
- Electric - Sunroof, tilt/slide front glass and fixed glass
Alpine Roof
- Surround Camera System - with Tow Assist and Tow Hitch Assist
(Includes Rear View Camera)
- Adaptive Bi-Xenon headlights with cornering lamps
- Automatic High Beam Assist
- Roof Rails
- 20 inch 10-Split Spoke Alloy Wheel
- Front centre console - cooler compartment
- Keyless Entry
- Cold Climate Pack - Heated windscreen, heated seats front and
rear, heated windscreen washers & Heated Steering Wheel
- Premium Leather Pack with Electrically Adjustable Bolsters
- Premium Leather Cubby Box Lid,
- Carpet Mat Set
Discovery 4 Recommended Price (before statutory and
delivery charges):
2.7 TDV6 |
$68,490 |
3.0 TDV6 SE |
$81,990 |
3.0 TDV6 HSE |
$94,990 |
5.0 V8 |
$126,460 |
New LR-TDV6 3.0 engine boosts performance and cuts
emissions
"With immense torque delivered at low rpm, the new LR-TDV6
3.0 diesel is perfectly suited to the Discovery 4's all-terrain
capability. And on the road, the engine delivers huge refinement,
as well as better fuel consumption and lower CO2 emissions"
Murray Dietsch, Director, Land Rover Programmes
LR-TDV6 3.0 in short
- 180kW and 600Nm torque
- 29 percent more power, 36 percent more torque than the existing
2.7-litre diesel
- Responsive 500Nm torque from idle in 500ms
- Fuel consumption improved by 9.7 percent over 2.7 litre TDV6,
delivering 9.3 l/100km on Combined EU cycle
- CO2 emissions reduced by 9.6 percent from 270 g/km down to 244
g/km
- Unique, parallel sequential turbocharger system
- Minimised engine friction and low energy consumption fuel
pump
- Third generation common rail fuel system.
- Low radiated engine noise
At the heart of the improvements introduced with Discovery 4 is
an exceptional and highly efficient new diesel engine. The LR-TDV6
3.0 sequential turbodiesel is based on the existing LR-TDV6
2.7-litre engine, but radically redesigned to deliver substantially
higher performance, lower emissions and better fuel economy.
The 2.7-litre has won many admirers as one of the most refined
diesels ever made. The new, twin turbocharger LR-TDV6 3.0 boasts
substantial increases in both power - up 29 percent to 180kW - and
torque, up 36 percent to 600Nm. The ability to deliver maximum
torque at just 2,000rpm, combined with unparalleled throttle
response, substantially enhances the Discovery's already acclaimed
ability both on and off-road.
The new 3.0-litre diesel can significantly out perform its
rivals by delivering 500Nm in only 500 milliseconds from idle. From
the driver's perspective this means instantaneous access to 83
percent of maximum torque.
But despite this extra performance, engine emissions are
dramatically reduced, with a CO2 figure of 244g/km, it undercuts
the existing 2.7-litre automatic by almost 10 percent. Fuel economy
is also improved by almost 9 percent delivering 9.3 l/100km on the
EU Combined cycle.
The new 3.0-litre engine has been developed by a joint Jaguar
Land Rover team, with base characteristics designed from the outset
with the requirements of both brands in mind. High levels of torque
and fast response from low revs perfectly suits both Jaguar and
Land Rover DNA. The Jaguar version, the AJ-V6D Gen III S,
was recently launched in the new XF.
The LR-TDV6 engine has a deeper sump than its Jaguar sibling, to
ensure the efficiency of the lubrication system is not compromised
when venturing off-road. The oil scavenge system of the
turbochargers has been enhanced for a similar reason, ensuring no
oil collects in the turbochargers at extreme angles in off-road
conditions.
For the Land Rover version, belt drives are waterproofed, as are
the alternator, air conditioning compressor, power steering pump
and starter motor. The engine is also tuned specifically to allow
for the greater demands made on the Discovery 4, particularly for
towing and all-terrain driving.
Twin-turbos - immensely efficient, highly
responsive
A key feature of the new LR-TDV6 3.0 is the unique, parallel
sequential turbocharger system, the first of its type to be fitted
to a V-engine anywhere in the world. Delivering high torque
throughout the entire engine-rev range, improved throttle response
and low CO2 emissions, the twin-turbochargers work sequentially to
provide unrivalled response and best-in-class torque at low engine
speeds, while also packing a huge punch at higher speeds.
Driving a turbocharger requires pressure from the exhaust,
creating pumping losses in the engine and increasing fuel
consumption. Under the control of the engine management system,
valves isolate the secondary turbocharger both from the exhaust
stream and the engine inlet tract when it is not required. A
balance pipe connecting the two manifolds allows the gas from both
manifolds to feed through the primary turbocharger.
The new 3.0-litre diesel can significantly out perform its
rivals by delivering 500Nm in only 500 milliseconds from idle,
unlike many diesels which can suffer turbo-lag at very low revs.
From the driver's perspective this means instantaneous access to 84
percent of maximum torque.
Parallel sequential turbocharging - summary of
advantages:
- Most of the time only one turbocharger is in use (up to
motorway cruising speeds and average acceleration). Because it is a
medium, rather than large-sized turbo with variable geometry,
response is excellent with no discernable lag.
- Packaging is excellent, one turbo and manifold below each bank
of cylinders.
- The combination of two turbochargers makes it possible to
optimise efficiency and performance at all times.
- Because one turbocharger is in use most of the time, pumping
losses are reduced.
- More efficient than series turbocharger systems, whose smaller
primary turbocharger increases pumping losses and fuel consumption
through raised exhaust back pressure.
Third generation common rail
A new common rail fuel-injection system delivers up to five
injections on each cycle at a pressure of 2000bar. Each injector
tip is perforated by seven holes through which finely atomised fuel
is sprayed into the cylinders. The high-pressure injection
increases power, improves economy and reduces both CO2 and
particulate emissions. New, high-speed piezo injectors are designed
to keep injection noise to a minimum.
Piezo crystal 'packs' operate each injector by expanding when an
electric current is passed through them. They react virtually
instantaneously but make a distinctive click when fired, which can
add to diesel engine noise at idle. The crystals in Land Rover's
new injectors are fitted nearer the tip meaning they are mounted
deeper inside the engine providing better sound insulation and
quieter operation.
Also new to the third-generation fuel-injection system is
'metering mode'. Traditional diesel common rail fuel pumps
oversupply the injectors, with the surplus being returned to the
fuel tank. During this process, fuel temperature increases and
cooling it again consumes considerable amounts of energy. In
metering mode, the pump delivers fuel to the injectors only at the
rate required. Consequentially, there is no rise in fuel
temperature and no wasted energy.
Rugged yet lightweight
The two cylinder heads, with four valves per cylinder, are made
from aluminium and the cylinder block is made from compact graphite
iron (CGI) as before. The higher tensile strength of CGI makes it
possible to cast a smaller block some 80mm shorter than a
conventional 'grey' cast iron equivalent.
The new, water-cooled, exhaust gas recirculation system (EGR),
important for reducing pumping losses and emissions of NOX in a
diesel engine, is more efficient and consumes less power than its
predecessor, with the valves allowing exhaust gas into the system
being located on the 'hot side' of the engine nearest the exhaust
manifolds. These valves never cool while the engine is running, so
there is no condensation of combustion deposits which occurs on
engines fitted with 'cold side' valves, hence the EGR system always
works at maximum efficiency. Since the EGR cooling is so effective,
exhaust gasses can bypass the system and return to the exhaust
pipes, allowing faster engine warm-up from start-up and reducing
emissions still further.
NOX levels are reduced sufficiently at source through the
combustion system design, the addition of the new common rail
injection system and the new EGR system with by-pass. As a result,
specialised NOX exhaust after-treatment is unnecessary, avoiding a
potential cost and the need to use additional precious metals in
the exhaust system.
Increased refinement
The CGI cylinder block and new piezo injector design reduce
combustion noise in the new engine. Multiple, precise injections of
fuel on the combustion stroke also reduce combustion noise and all
engine covers including camshaft covers, front covers and the sump
have been optimised to subdue radiated noise.
The new diesel underwent analysis using the latest computer
aided engineering techniques, followed by exhaustive rig testing.
All the engine enclosures have been ribbed to minimise radiated
noise.
Internal friction, a major contributor to unnecessary fuel
consumption, has been addressed by careful optimisation of the
crankshaft, valves and pistons. All these features combine to make
the new LR-TDV6 3.0 Sequential Turbo Diesel one of the quietest
premium diesels on the market today.
Top of the class. All new, 5.0-litre V8
petrol
The new LR-V8 is just that - all new. Designed entirely in-house
by Jaguar Land Rover powertrain engineers it is one of the most
advanced petrol engines ever built, packed with clever features to
reduce fuel consumption while delivering staggering performance.
The new LR-V8 develops 276kW and 510Nm torque, bettering the
existing naturally aspirated 4.4-litre V8 for power and torque by
25 percent and 16 percent respectively. Yet despite the extra
power, CO2 emissions are seven percent lower than the 4.4-litre V8
at just 328g/km.
"Our new 5.0-litre V8 was conceived from the outset with
Land Rover models in mind. Designed with the emphasis on low-end
torque, it is particularly suited to the Discovery's wide range of
capabilities both on and off road. Considerable attention to detail
means fuel consumption and CO2 levels have been kept to an absolute
minimum." Engine Group Chief Engineer, Malcolm Sandford.
The outstanding performance and efficiency is achieved using a
number of advanced engine technologies:
- direct injection, using centrally-mounted, multi-hole,
spray-guided fuel injection system - an industry first
- innovative new variable camshaft timing system (VCT) -- another
industry first
- variable inlet manifold (VIM), and camshaft profile switching
(CPS) on the inlet camshaft
Direct injection - increased power and torque with lower
emissions
One of the key features of the new V8 is an industry first,
centrally-mounted, multi-hole, spray-guided fuel injection system,
delivering fuel at a pressure of up to 150bar directly to the
cylinder. The positioning of the injectors ensures fuel is
precisely delivered to the centre of the combustion chamber,
maximising air-fuel mixing, and improving combustion control.
Fuel is delivered by twin, high pressure fuel pumps driven via
an auxiliary shaft in the all new engine block. Delivery of fuel
direct to the cylinder has substantially contributed to improved
low speed, dynamic response which is particularly useful off-road
while adding to driving pleasure on-road. The charge cooling
effects of the direct injection fuel system have allowed the
compression ratio of the naturally aspirated engine to be raised to
11.5:1, further improving the engine economy.
During the engine warm-up phase, the combustion system employs
multiple injection mode strategies to deliver 50 percent more heat
for fast catalyst warm-up and substantially reduced emissions.
New variable camshaft timing system boosts engine
torque, saves energy
A new type of variable camshaft timing system (VCT) introduces
another industry first. The four VCT units are activated by the
positive and negative torques generated by opening and closing the
intake and exhaust valves, instead of by oil pressure. This has
allowed the engine oil pump to be reduced in size, saving energy
and reducing fuel consumption.
VCT units work independently on all four camshafts with 62
degrees of authority on the inlet cams and 50 degrees of authority
on the exhaust cams. Timing is optimised by the engine control unit
for torque, power and economy at every point in the engine's speed
range.
The response rate of the new VCT units is 25 percent higher than
before with actuation rates in excess of 150 degrees per second.
This delivers a more immediate engine response to driver
demand.
Camshaft profile switching - flexibility with
performance
The naturally aspirated LR-V8 is also equipped with camshaft
profile switching (CPS) on the inlet camshaft. Depending on the
engine's running conditions and driver requirements, the CPS will
switch between a profile that is ideal for low speed driving, and
another which gives increased valve lift for high performance. This
feature helps endow the Discovery with ample low end torque in
demanding terrain, yet fully exploit the potential of the 5.0-litre
V8 when conditions allow.
An hydraulically-actuated two-piece tappet switches between
profiles on the tri-lobe camshaft altering both the lift and
duration. The cam lobe profile selected for engine speeds below
3000 rpm has a duration of 214 degrees and lifts the valves 5.5mm.
This optimises gas velocity for improved low-speed torque and
reduces valve train friction for improved fuel economy. For
high-speed driving, CPS switches to a cam lobe with a duration of
250degrees and valve-lift of 10.5mm, allowing greater air flow into
the engine for high power.
Variable Inlet Manifold (VIM) optimises power and
torque
Complementing VCT and CPS on the naturally aspirated LR-V8 is a new
variable inlet manifold (VIM) which can vary the length of its
eight inlet tracts to optimise power and torque throughout the rev
range. As a consequence, the engine can develop the maximum
possible low-end torque yet breathe well enough to develop enormous
power at higher rpm. Vacuum operated actuators open valves to
select a longer (680mm) inlet tract at low revs, increasing the
rate of both the airflow and the engine torque. As the revs climb
beyond 4,700rpm, the actuators select a shorter (350mm) path,
allowing a greater volume of air into the engine for higher power.
The actuator position is continually optimised by the engine
control unit for torque and economy throughout the engine speed
range.
Responsive new transmission
Both the LR-TDV6 3.0 and the LR-V8 are mated to the revised and
super-smooth ZF HP28 6-speed automatic transmission. Its
characteristics have been optimised by Land Rover engineers to
provide class-leading response, with rapid and refined shifts. The
dramatic enhancement of both power and torque low down the rev
range on the new engine have made it possible to actuate the
transmission's lock-up clutches much earlier in each gear, reducing
slip through the hydraulic torque converter, so helping with the
improvements in both fuel consumption and CO2 emissions.
Dynamics transformed
Major dynamic advances introduced for the Discovery 4 include
revised suspension architecture, improved steering, larger brakes
and enhanced versions of Land Rover's award-winning Terrain
ResponseTM and Hill Descent Control systems.
The list of changes starts with new suspension knuckles,
designed to reduce the separation between the suspension roll
centre and the vehicle's centre of gravity (reduction of 42mm at
the front and 62mm at the rear). This dramatically reduces the
vehicle's natural body movements when cornering. These roll rates
are further controlled by a stiffer and larger anti-roll bar.
In addition, new bushes and new front and rear dampers enhance
ride quality.
The variable ratio steering rack is revised, complementing the
improved ride quality by reducing 'twitchiness' around the centre
line at high speed cruising and slightly increasing sensitivity at
higher lock angles. This enhances the sense of driver involvement
in high-speed manoeuvres, and also increases precision for low
speed control and off-roading.
The redesigned front bumper also helps improve steering feel, as
its new anti-drag lips help reduce aerodynamic lift at the front of
the vehicle by up to 50% at higher speeds.
Increased stopping power
A new, larger brake system has been introduced, along with the new
engines, to cater for the Discovery 4's enhanced performance and to
improve braking feel.
This new system is inspired by the four-piston, opposed-calliper
performance system used on the Range Rover Sport. It employs a
360mm ventilated front disc with a new, cast iron twin-piston
sliding calliper - which serves to reduce the size of the front
brake package while preserving its stiffness, which in turn helps
achieve excellent pedal feel.
At the rear, a single piston sliding calliper operates on a
350mm ventilated disc, now manufactured in aluminium to help reduce
vehicle weight.
An additional advance to the braking system is the new emergency
brake light function. When the vehicle undertakes severe or
emergency braking, the brake lights flash, to reduce the risk of
rear end collisions.
More control in the bends
A refinement to the understeer control system helps automatically
slow the vehicle if taking a bend too fast, enhancing driver
control.
The system operates according to steering inputs from the
driver. In extreme cases, automatic braking intervenes to reduce
the vehicle speed, with the braking pressure level applied
according to the steering inputs. Automatic braking up to
'emergency stop' may be applied, if the inputs demand.
Updates for award-winning Terrain ResponseTM
and Hill Descent Control
For Discovery 4, Land Rover's award-winning Terrain ResponseTM
system gains new features and refinements, further extending the
vehicle's all-terrain capability. Terrain ResponseTM optimises the
vehicle set-up for virtually all on-road or off-road driving
situations, with five different settings to suit different
terrains:
- General driving
- Grass/gravel/snow
- Sand
- Mud and ruts
- Rock crawl
For soft sand - one of the most power-hungry surfaces - 'sand
launch control' has now been introduced, which makes for noticeably
easier drive-away. New, speed-dependent wheel-slip targets for the
traction control system permit only very limited wheel-slip,
helping to prevent the wheels digging down into the sand.
When picking a drive route through boulders, severe
articulations can lead to the vehicle rolling excessively in an
undesirable direction, calling for simultaneous brake and
accelerator engagement. New for Discovery 4, revisions to the rock
crawl programme apply low level brake pressure when the vehicle is
in first or reverse gear at speeds below 5km/h. This low-level
brake force reduces the vehicle's roll tendency and the
intervention of the traction control system, giving a more composed
drive through rocky terrain.
Land Rover's much-acclaimed Hill Descent Control system is
enhanced on Discovery 4 with the addition of Gradient Release
Control. This inhibits the initial rate of acceleration when
descending very steep inclines, to increase control and eliminate
the potentially alarming lurch which can occur when braking is
released at extreme angles.
The system operates automatically whenever Hill Descent Control
is engaged, temporarily maintaining brake pressure after the driver
releases the brake pedal. It then progressively eases braking
pressure to control vehicle momentum and acceleration. Once the
vehicle's target off-road speed is achieved, Hill Descent Control
operates to take vehicle to the bottom of the slope in its
customary composed manner.
A new face on a distinctive design
"Discovery 4 stays true to its clean, geometric,
architecturally-inspired predecessors, while its new front bumper,
lights and face with smoother lines and subtle curves, together
with more colour-coding, combine to enhance the overall impression
of premium quality." Design Director, Gerry McGovern
The Land Rover Discovery has evolved a distinct design heritage
over 20 years and four generations of iconic, instantly
recognisable vehicles. Discovery 4 inherits the clean lines of the
previous generation, but now subtly updated and given a more
premium, more contemporary look.
Smoother, simpler surfaces are employed at the front, giving the
vehicle its new character, emphasised by sportier looking front
lights, with new LED position lamps configured in a unique,
signature stepped profile around the main light units. New lights
are also introduced at the rear of the vehicle, incorporating LED
stop, tail and indicator technology.
The new front bumper has a larger cooling aperture to
accommodate the new engine's greater power outputs. Cleverly, the
larger bumper actually improves vehicle aerodynamics by reducing
drag, thanks to its innovative anti-drag 'lips' that help smooth
the airflow from the front bumper around the front wheels.
A new, twin seven-spoke 19" wheel design is introduced on the
Discovery 4 to complement the existing 7-spoke 19" wheel and, for
the first time, a new striking, 10-spoke 20" wheel is available as
a factory-fit option.
Three new paint colours complete the exterior changes for
Discovery 4 - Nara Bronze, Bali Blue and Ipanema Sand.
All-new interior
"The interior of Discovery 4 continues to offer the driver
and passengers superb visibility and versatility. But the
re-designed facia and console architecture plus the use of premium
materials, make the cabin a much more desirable place to be."
Gerry McGovern
The new interior for Discovery 4 combines smooth, flowing
surfaces with significant reduction in the complexity and number of
controls. It provides a much softer, more premium all-round
interior ambience, but still in keeping with the signature
Discovery architectural theme.
The new console is now inclined towards the driver, improving
visibility and access to the controls. It looks more akin to that
in the Range Rover Sport than the outgoing Discovery 3. The Terrain
ResponseTM control is now more prominently located at the front of
the centre console, making way for the cup-holder in a more
accessible position, mid-way along the console.
All models feature a new steering wheel, with revised switch
layout for driver information, remote audio controls, cruise
control and heated steering wheel.
A choice of natural-finish woods, along with stitched and
wrapped facia, door casings and centre console, add to the crafted
bespoke feel. There are also two new interior contrast colours, a
mid-tone Nutmeg and a darker Arabica, complementing the existing
Almond light interior colourway.
New seating is introduced for rows one and two, with a new,
extended front seat cushion profile to improve support and seating
comfort and, for the first time, the front seats feature
height-adjustable head restraints in place of the traditional seat
mounted grab handles. Vehicles fitted with the Premium Leather pack
also feature electrically adjustable side seat bolsters, allowing
front occupants to tailor their seating's support.
For convenience, the electric seat memory controls are relocated
to the door casing.
New Interior Mood Lighting adds the finishing touch to the
interior, with the introduction of white LED's to cast subtle halos
around the metal-plated interior door handles and pockets. The
fascia and centre console area, complete with soft-stitching, and
switchgear highlighted in "Noble" finishers, also benefit from the
interior mood lighting when vehicle lights are on.
Technology made simple
"The Discovery 4 is packed with easy-to-operate and useful
features, not technology for technology's sake. The aim throughout
is to simplify the operation, to help make journeys more relaxing
and stress-free" Stuart Frith, Chief Programme Engineer
Inside and out, the Discovery 4 gains a raft of relevant new
technology, to improve the driving experience.
The navigation system adopts an easy-to-use navigation structure
which now also features 'towards guidance'. This supplements the
junction map and icon-based information with details of the actual
road signage viewed by the driver along the route.
The new Portable Audio Interface allows connectivity to an array
of personal audio storage devices, USB sticks and MP3 players,
enabling the various devices' functions to be accessed and
controlled via the facia-mounted touch-screen system. One of the
connectivity ports is a dedicated Apple i-PodTM point made
exclusively by Land Rover, for continued functionality in extreme
driving conditions, by helping to prevent the device coming loose
from the socket.
A new 5-inch Thin Film Tranistor (TFT) driver information screen
is also introduced with Discovery 4. Sitting within the re-designed
instrument cluster, the message centre display ensures key
information is communicated in a clean, simple and user-friendly
manner.
And a purer, crisper radio sound is now available thanks to the
introduction of Digital Audio Broadcasting (DAB) in most European
and Asian markets, and HD radio in the US. Along with the fine
listening experience, comes additional features such as news
headlines, song title and artist information.
Cutting edge user-friendly technologies
Outside the vehicle, convenient and relevant new systems enhance
safety and security.
The new front headlights incorporate high beam assist
technology. This can automatically switch on high beam headlights
where external light levels are below the system's threshold.
Importantly, the system is also designed to detect preceding and
approaching traffic, and in a split second will automatically
switch back to low beam to avoid dazzling others.
The new available remote entry key emits the signal required for
passive entry into the vehicle, by the holder of the key simply
touching the door handle, without using 'unlock' button on the key
fob. The new key generates the signal required for the Push Button
start of the vehicle. Sophisticated sensors recognise the presence
of the key in the vehicle, confirm security credentials and then
accept the 'start' command via the new fascia mounted start/stop
push button.
No less than five digital cameras make up the new surround
camera system, relaying to the touch-screen a near 360-degree view.
The cameras function immediately the vehicle is started, and can be
used at speeds up to 18km/h, with options for selecting and zooming
in to assist with close quarter parking and with towing.
The 'tow assist' function (selected from the touch screen menu)
helps perform accurate towing manoeuvres. The wide field of views
on the side cameras give a clear view of the reversing trailer: the
images are electronically manipulated to provide an undistorted
view, with guide lines overlaid on the rear camera image to
illustrate both the vehicle and trailer's trajectory.
Specific characteristics such as type of trailer, number of
axles and width guides can be fed into the system to enhance the
system outputs.
Another towing aid, Trailer Stability Assist, detects trailer
oscillations by monitoring key vehicle behaviours, such as
uninvited steering movements and slight vehicle swing in response
to trailer behaviour. In these circumstances, the system can
initiate engine torque reduction and braking interventions to bring
the towing back under control.
Remote Park Heat
To help engine warm-up in colder conditions, the LR-TDV6 3.0 litre
can be pre-heated, either by using a one-day timer, programmable
via the infotainment screen, or activated using the remote control
key fob. Once the engine is up to temperature, any residual heat is
channelled into the cabin for enhanced occupant comfort on entry
into the vehicle.
Diesel Misfuelling Protection Device
Land Rover's patented device for the diesel fuel filler neck, to
reduce the risk of inadvertent fuelling with petrol, is fitted to
the new Discovery 4.
e-Terrain technologies boost economy and lower CO2
emissions
The new Discovery is packed with features aimed at reducing fuel
consumption and reducing CO2 emissions. Both the new LR-TDV6 3.0
Sequential Turbo Diesel and the new LR-V8 direct injection petrol
engine were designed from the outset to deliver class-leading fuel
economy and improved low-end torque.
The parallel sequential turbocharging system of the 3.0-litre
diesel makes use of its larger, primary turbo most of the time. The
smaller secondary turbo remains dormant when higher power is not
required, reducing pumping losses and consequently, fuel
consumption. A highly efficient, third generation common rail
injection system with piezo injectors and fuel metering, also makes
a substantial contribution to fuel economy.
The LR-V8's new high pressure, spray guided direct injection
system optimises combustion while the new variable camshaft timing
system and camshaft profile switching all join forces to ensure the
engine is optimised for fuel efficiency throughout the range.
Faster warm-up thanks to the new cooling system also improves fuel
economy as do the low friction design features.
The new engines have also been optimised for low-end torque as
well as economy, making it possible to activate the lock-up clutch
of the ZF HP-28 automatic transmission at lower speed. This reduces
'slip' in the hydraulic torque converter improving both fuel
consumption and CO2 emissions. The higher torque at lower rpm also
enables longer gearing for more economical cruising.
The Discovery incorporates several other energy saving features
too. At standstill, the idle speed of the LR-TDV6 has been reduced
from 750rpm to 710rpm, giving a fuel saving without compromising
refinement. An Intelligent Power Management System includes Smart
Regenerative Charging, so whenever possible the alternator charges
the battery when it is most economical to do so, such as when the
car is coasting rather than accelerating.
Aerodynamic changes to the front end, with the revised front
lower chin spoiler and new front wheel deflectors, help to reduce
drag by increasing underfloor airflow. The new air conditioning
pump is driven through a clutch which disengages when the air
conditioning is not in use reducing parasitic losses and delivering
improvements in fuel consumption and CO2 emissions.