The new Audi Q7
4.2 TDI will be in the showrooms in the early summer
Der neue Audi Q7 4.2 TDI rollt im Frühsommer
zu den Händlern.
|
The Audi Q7 4.2 TDI
240 kW/326 bhp
and 760 Nm of torque Audi proudly presents the most powerful diesel
SUV on the world market. A state-of-the-art eight-cylinder engine with common
rail fuel injection and Piezo injectors not only stands out on account of
its sheer output but also demonstrates outstanding efficiency: the 4.2 TDI
has an average fuel consumption of just 11.1 litres of diesel per 100
kilometres.
The Audi Q7 places the concentrated power of the V8 TDI, an
engine with a displacement of 4.2 litres, into a vehicle concept that impresses
with its versatile sportiness. Even at its debut, the Q7 model series set
new standards in its segment. Now the 4.2 TDI is moving the bar even higher.
Under the bonnet of the new Audi Q7 4.2 TDI is the most powerful diesel engine
the brand has to offer. The 4.2-litre capacity of the V8, which already powers
the A8 luxury saloon, generates an output of 240 kW/326 bhp and 760 Nm of
torque at engine speeds between 1,800 to 2,500 rpm. The most powerful SUV
on the market has the drivability of a sports car. The Audi Q7 accelerates
from standstill to 100 km/h in 6.4 seconds and has a top speed of 236 km/h.
These figures are also the new best marks in its segment. The Audi Q7 4.2
TDI transmits its power through a six-speed tiptronic gearbox and a sportily
tuned quattro driveline, which in normal situations splits propulsive force
40 percent to the front wheels and 60 percent to the rear axle. Audi's "adaptive
air suspension" is standard on this most powerful of diesels it unites
dynamic handling with the ride comfort of the luxury class. The Audi Q7 4.2
TDI is also at the top of the tree with its standard convenience equipment.
The leather design package gives the interior a noble feel. The electric
tailgate makes lighter work of loading. A new feature is the Audi lane assist
system, which emits a pulse to inform the driver before he inadvertently
crosses a line on the carriageway. |
The engine: concentrated
pulling power
Like all the engines in the Audi Q7 series, the 8-cylinder diesel
heralds from Audi's new V-engine family. With a displacement of 4,134 cc,
the large TDI has a maintenance-free chain drive on the gearbox side for
its four camshafts and ancillaries. The angle between the cylinder banks
is 90 degrees, the cylinder spacing 90 millimetres, the overall length just
520 millimetres. The crankcase is made of the high-tech material vermicular
graphite cast iron. This forms the basis for the light weight of the engine
just 257 kilograms. The V8 TDI is a masterpiece of engineering. The
best examples: the crankshaft is forged from chrome-molybdenum alloy steel;
the cylinders are of cast aluminium. Low-friction roller cam followers actuate
the 32 valves; electronically actuated flaps give the intake air into a defined
swirl. Two turbochargers with variable-geometry turbines provide solid torque
even at low engine speeds while still allowing a high power output. Large
charge-air coolers reduce the temperature of the compressed air. The common
rail fuel injection system contains compact Piezo inline injectors that are
extremely precise and fast switching. They are capable of up to five injection
sequences per working cycle. The 4.2-litre TDI develops 240 kW/326 bhp at
3,750 rpm. Between 1,800 and 2,500 rpm it induces its impressive pulling
power onto the crankshaft 760 Nm of torque. The most powerful diesel
engine in the SUV segment gives the Audi Q7 the sportiest performance of
all diesels. The premium SUV sprints from 0 to 100 km/h in just 6.4 seconds.
On the motorway it can reach a top speed of 236 km/h. |
The driveline: dynamic
character
The Audi Q7 4.2 TDI is equipped as standard with the six-speed
tiptronic automatic gearbox. The dynamic shift program (DSP) manages the
gearshifts, whereby it orientates itself to the driver's style and to the
characteristics of the road. A special sport programme the S programme
supports a particularly dynamic driving style. The driver can intervene
at any time, either at the gear gate for the selector lever or at the optional
paddles on the steering wheel. As the tiptronic in the Audi Q7 was designed
for high torque from the very outset, it does not need to be specially reinforced
to team up with the V8 diesel engine. Like all Audi Q7 models, the 4.2 TDI
has a self-locking centre differential with asymmetric/dynamic torque split.
In regular operation, it transmits the drive force with a ratio 40:60 to
the front and rear axles respectively. If needed, torque is distributed at
varying ratios between the front and read axles according to the level of
grip: optimum traction is provided at all times. This ultramodern quattro
technology provides for sporty characteristics reminiscent of a rear-wheel
drive vehicle, for exceptional agility and for a steering precision that
is to the greatest possible extent free of influences from the driveline. |
The running gear: sporty
performance
The running gear on the Audi Q7 4.2 TDI supports this dynamic presence. And
it superbly masters all of these challenges whether in rough terrain
or on the road, where handling characteristics, driving safety and comfort
set the standards. Adaptive air suspension, fitted as standard, rounds off
the outstanding character the combination of pneumatic suspension
and electronically controlled damping with dynamic roll stabilisation forms
the perfect synthesis of sportiness and maximum rolling comfort. The Audi
Q7 4.2 TDI driver can set the adaptive air suspension to any of three maps,
from very sporty to very comfortable. In addition, the system allows five
ground clearance settings. Up to 205 millimetres of air under the vehicle
(offroad mode) is usually enough even on demanding terrain. The rear can
be lowered by 71 mm for comfortable loading. The Audi Q7 running gear is
characterised by its high degree of sophistication. All four wheels are
independently mounted on double wishbones. The axle components are made largely
of aluminium. The servotronic steering is distinctively direct and precise,
giving a feeling of excellent road contact. The Audi Q7 4.2 TDI runs on sporty
18-inch alloy wheels with size 255/55 tyres. Behind them, the four brake
discs are internally ventilated and generously dimensioned 350 millimetres
in diameter on the front axle and 358 millimetres on the rear axle. The front
brake callipers employ 6-piston technology, like on a top sports car.
The equipment: intelligent
luxury
The leather design package is standard on the new Audi Q7 4.2
TDI. It includes inlays in three different types of wood or aluminium, and
seat upholstery in Cricket leather. The front seats are electrically heated
as standard. An on-board computer, cruise control system and multifunction
steering wheel enhance comfort for the driver. The much-praised "MMI basic"
control system is also fitted as standard. A practical tool is the electrically
driven tailgate, whose opening angle can be programmed. A range of assistance
systems makes driving in Audi's performance SUV even safer. A new technology
that is enjoying its debut in the Audi Q7 4.2 TDI is Audi lane assist. It
informs the driver if the lane is inadvertently left upwards of a speed of
around 65 km/h. If the system is activated and the driver has not indicated,
then shortly before the vehicle crosses the line marking, which is detected
by Audi lane assist, the system alerts the driver by making the steering
wheel vibrate (only in conjunction with the 4-spoke multifunction steering
wheel). Optional Audi adaptive cruise control is a radar-supported cruise
control system incorporating active distance control. If required it can
be combined with the "braking guard" brake assist system. Audi's "side assist
system" employs radar technology to monitor the blind spot and inform the
driver if it is dangerous to change lanes. The "Audi parking system advanced"
uses a camera for the view to the rear. The aid lines on the monitor make
parking an enjoyable task. Numerous interesting features are available for
the dynamic lines of the exterior and for the spacious interior of the
5.09-metre-long Audi Q7: 21-inch wheels, the "open sky system" glass roof
or the rail system for the generous luggage compartment, which has a capacity
of up to 2,035 litres. A deluxe climate control system is standard. The seats
are extremely variable. Like all Audi Q7 models, the 4.2 TDI is available
as a 5, 6 or 7-seater. A 4-seater version will be available at a later date. |
AUDI AG, Kommunikation Produkt
und Technik
AUDI AG, Communication Product and Technology
Ingolstadt, March 01, 2007 |
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