Land Rover Discovery 4 TDV6 S
Vidéo associée à l'essai du Land Rover Discovery 4 TDV6 S par l'équipe
d'Osons4x4mag dans le cadre du numéro 61. L 'article est accessible à
Test driving the new Discovery 4 at Land Rover Factory in Solihull
A test drive in the new Discovery 4 at the Land Rover Experience Centre in
Solihull. We tackle 45 degree hills, cambers, ruts & all other types of
terrain. With instructors comments & instructions on how to drive this
amazing bit of kit.
Lennock Test Drive Series - Discovery 4
Mud ruts, wet grass, rocks, water, hills, gravel road and around town --
just some of the challenges Justin gives the internationally acclaimed Land
Rover Discovery 4.
On assignment near Bungendore, about 25-minutes out of Canberra, Justin
takes the Land Rover Discovery 4 HSE through a series of short courses to
demonstrate the handling, practicality and capabilities of this exceptional
four wheel drive.
Land Rover Discovery 4 / LR4 Off Road [HD]
The fourth generation Discovery 4 was launched in 2009, and went on sale in
the United Kingdom on 1 September. Compared with the 2.7 litre TDV6 engine,
which continues to be offered on the Discovery 4, the new TDV6 3.0 litre
twin turbo diesel engine delivers a 9%
fuel economy improvement (EU combined cycle) and 10% lower CO2 emissions,
at the same time as increasing power by 28% to 241 bhp (180 kW); torque
increases 36% to 600 N·m (440 lb·ft). The results include a 060 mph time
of 9.0 seconds, (0100 km/h in 9.6 seconds), a 24% improvement over the 2.7
litre model. The new engine has 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 engine speeds also enables longer
gearing for more economical cruising.
Land Rover's engineers have also transformed the on-road ride, handling and
off-road capabilities. The changes include new suspension components,
revised steering, larger brakes, improved traction control, and
enhancements to the Terrain Response system, which helps optimise the
vehicle for different on-road or off-road driving situations.
The exterior design of the Land Rover Discovery 4 has been updated, most
obviously with smoother and simpler surfaces at the front, including a new,
more aerodynamic bumper. 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 lights include LED
technology front and rear. The front headlights include High Beam Assist,
switching on or off, as conditions require.
The interior has been redesigned, with a transformed dash, centre console
and new seats.
The Land Rover Discovery 4 incorporates other energy saving features. At
standstill, the idle speed of the V6 has been reduced from 750 rpm to 710
rpm, 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. 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.
Admist these revolutionary innovations, the LR4 has also been subjected
towards some critisism from old time Discovery fans around the world for
being more of a "Macy's Parking Lot Vehicle" rather then a "real" Land
Rover. For example, the LR4 doesn't utilize a classic oil plug in the
bottom of the oil pan as do most every car and truck. The only way to
change the oil in an LR4 is to have a Land Rover Dealership use a special
device to "vacuum" the oil out of the engine. This means that if you follow
the 3k-5k mileage timeline for oil changes, and plan on driving the car to
100k miles, plan on a minimum of 20 visits to the dealer, not including
additional maintianence necessary.
A 2.7 litre commercial version, the Discovery 4 XS Commercial, is offered
in the United Kingdom. It has N1 Light Commercial 4x4 Vehicle status, which
reduces the annual cost of the vehicle excise duty to £125, compared with
£405 (increasing to £950 in April 2010), payable for the normal 2.7 litre
5.0l V8 petrol2009 (MY2010)-4,999 cc (4.999 L; 305.1 cu in) V8 16v
(AJ133)375 PS (276 kW; 370 hp)@6500, 510 N·m (376 lb·ft)@3500
2.7l TDV62009-2,720 cc (2.72 L; 166 cu in) V6 twin turbo (Ford AJD-V6/PSA DT17)191 PS (140 kW; 188
hp)@4000, 440 N·m (325 lb·ft)@1900
3.0l TDV62009 (MY2010)-2,993 cc (2.993 L; 182.6 cu in) V6 twin turbo (Ford AJD-V6/PSA DT17)244.5 PS (180 kW; 241
hp)@4000, 600 N·m (443 lb·ft)@2000