Friday, November 4, 2011

audi Q7

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Audi Q7 review
Audi q7 with a choice of three engines V6 and a new 8-speed tiptronic.
Engines: a new range
More power, greater efficiency: Audi has revised the engine lineup for the Q7. The two petrol engines, both V6, but with different powers, they are new, and so is the second generation V6 TDI. A powerful V8 diesel engine completes the range. All engines for the Audi Q7 combines two technologies: forced induction and direct injection. A high-performance recovery system recovers energy during braking is also a standard feature of all six-and eight-cylinder engines.
The new 3.0 TFSI gasoline engine downsizing strategy incorporates Audi replacement cylinder, supercharged. Within the 90-degree angle formed by its cylinder blocks for a supercharged engine that compresses the intake air. Two air intercoolers prevent the air temperature rises, so that the engine draws in more oxygen for the combustion process. Throttle response and vigorous spontaneous impulse to do the 3.0 TFSI engine, with its sonorous note, an ideal energy source for large high-performance SUV from Audi.
Two versions of the supercharged V6 are available. The basic version develops 200 kW (272 hp) and a maximum torque of 400 Nm (295.02 pounds-ft) at a speed range of large-scale production at 4,750 and 2,250 revolutions per minute. The Audi Q7 accelerates from standstill in 7.9 seconds to 100 km / h (62.14 mph) and gives a top speed of 222 km / h (137.94 mph) or 225 kmh (139, 81 mph) with adaptive air suspension.
The most powerful version of the 3.0 TFSI delivers 245 kW (333 hp) and torque of 440 Nm (324.53 pounds-ft) between 2,900 and 5,300 rpm. 100 kmh (62.14 mph) is reached in 6.9 seconds with the powerful forward progress continuing up to 243 kmh (150.99 mph) are reached with adaptive air suspension is the maximum speed of 245 kmh (152, 24 mph) . Both versions of the 3.0 TFSI is extraordinarily efficient: fuel consumption in the EU test cycle is content to 10.7 liters per 100 km (21.98 U.S. mpg). Compared to the previous engine, the 3.6 FSI and 4.2 FSI, fuel consumption was reduced from 1.4 to 2.0 l/100 km - 12 and 16 percent respectively.
The second generation 3.0 TDI, a new development, in fact, nothing in common with its predecessor - along with a lot of energy! It has a rated power of 176 kW (240 hp) and a constant 550 Nm (405.66 pounds-ft) of torque all the way from 1,750 to 2,500 rpm. This V6 diesel Audi Q7 accelerates from standstill to a typical road-head speed of 100 km / h (62.1 mph) in 7.9 seconds and reaches a top speed of 215 km / h (133.59 mph) or with suspensions adaptive air, 218 kmh (135.46 mph). Its fuel consumption is impressively low, averaging 7.4 liters per 100 km (31.79 U.S. mpg), equivalent to CO2 emissions of 195 grams per kilometer (313.82 g / mile). This is an improvement of 1.7 l/100 km or 19 percent.
The latest 3.0 TDI engine weighs much less than before: 198 kilograms (436.52 pounds), a reduction of 20 kg (44.09 pounds). A new chain-driven timing gear and a complex process of the cylinder wall have reduced internal friction. The new turbo is very responsive, making it feel like the rapid buildup of torque. The common rail injection system has undergone further development: it has a maximum working pressure of 2,000 bar and can inject fuel into a jet extremely precise.
The crankcase and cylinder heads of the 3.0 TDI has a new separate cooling water circuits connected by valves. During the heating phase and, when the loads are not high, the coolant does not circulate in the engine block. This saves energy and increases the oil more quickly to their normal operating temperature. The new start-stop system switches the engine off when the Audi Q7 stops.
Audi also offers its customers a second version of the V6 TDI, the 3.0 TDI clean diesel. Already meets the emission limits established in the exhaust gas norm EU 6, which does not take effect until 2014, and regulations of the United States, very difficult. The sensors in the combustion chambers, a common rail fuel injection with a discharge pressure up to 2,000 bar and a high performance system for the recirculation of exhaust gases to keep untreated exhaust emissions to a minimum.A DeNOx catalytic converter in the exhaust system reduces residual nitrogen oxides by means of an additive. The 3.0 TDI clean diesel engine develops 176 kW (240 hp) and an impressive 550 Nm (405.66 pounds-ft) of torque between 2,000 and 2,250 revolutions per minute. Take the Audi Q7 from zero to 100 km / h (62.14 mph) in 8.1 seconds and a top speed of 215 km / h (133.59 mph) or 218 km / h (135.46 mph) with suspensions adaptive air. Its average consumption is 8.4 liters per 100 km (28.00 U.S. mpg).
The Audi Q7 4.2 TDI has also dramatically reduced fuel consumption - from 9.9 (23.76 U.S. mpg) to 9.2 liters per 100 km (25.57 mpg U.S.) - the installation of a system of bars -2000 fuel injection and minimizing internal friction. But at the same time, the V8 diesel engine, with its undiminished power level of 250 kW (340 hp) offers more torque than before. Now provides a powerful 800 Nm (590.05 pounds-ft) between engine speeds of 1,750 and 2,750 rpm. The big TDI engine gives the Audi Q7 performance figures worthy of a sports car. It accelerates from 0 to 100 km / h (62.14 mph) in 6.4 seconds and reaches a top speed of 242 km / h (150.37 mph).
Transmit power: eight speeds are standard
Audi has given all six and eight-cylinder Audi Q7 versions of a new automatic transmission. The tiptronic eight reports reduces fuel consumption by about five percent. It is based on the six-speed transmission, but another element of friction-clutch shift added. Being able to switch between the eight ratios continued to jump at low revs, the engine always operates close to its optimum operating point. All gear changes are fast, flexible and extremely fluid take place without delay.
7.25 to 1 in the spread of ratios in the eight-speed tiptronic is unusually large. In the lower ratios Audi Q7 accelerates strongly, the highest ratios that rolls along efficiently at low speeds.
To reduce power consumption even more, the torque converter clutch lock eliminates slip even at low speeds. The engine vibration that may occur as a result is suppressed by the new twist in the torque converter until recently each track can be found.
Drivers can choose between the D and S programs - or make your own gear shift lever in the optional steering wheel paddles or selector. In combination with the new 3.0 TDI tiptronic eight reports reached an exceptionally high efficiency. Your oil cooler is heated after a cold start with hot coolant from the engine cooling system.An oil pump makes operation of the electrical system of the Audi Q7 can start-stop: it maintains oil pressure in the hydraulic circuit when the engine stops and closes the clutch for a fresh start.
The eight-speed tiptronic transfers the engine power to the drive train quattro permanent four-wheel drive. This divides the power into a joyful, with 40 percent for the future and 60 percent to the rear wheels, but in some on-and off-road situations, the center differential can direct mechanical action of up to 65 percent of power to the front or up to 85 percent at the rear.
The chassis, agile and secure
The Audi Q7 is one of those characters who are at home wherever they are. On the road is excellent with its precise handling and sporty hardtop ends and where the surface shows impressive off-road features. The suspension uses double wishbones, aluminum subframe connected to separate. The wheel bearings have been optimized to reduce friction. Servotronic steering varies the degree of power assistance according to vehicle speed.
The optional adaptive air suspension (standard on the Q7 4.2 TDI and Q7 V12 TDI) with electronically controlled shock absorbers varies the ground clearance to fit the current situation. In a dual carriageway which reduces the body for better stability and lower fuel consumption. Through the rough terrain lift the body, if a button is pressed. In the normal MMI terminal, the driver can choose between five operating modes: comfort, automatic, off-road, and lift dynamic. The adaptive air suspension is also available on-line version of a dynamic S.
The Audi Q7 has 18-inch wheels with tires 235/60 or 255/55, depending on the engine chosen. But other wheels up to 21 cm in diameter can be selected as an option. Braking is looked after by large ventilated discs. With the two most powerful engines even the lightest disc-based carbon fiber reinforced ceramic are available.They are gripped firmly when needed for the calipers black with the "Audi ceramic" lettering. The ESP stabilization program includes a series that focuses on off-road traction on a free surface. And when the driver encounters a steep downhill off-road, the Hill Descent Assist is a great help.
Design and body sculpture in motion
The design of the Audi Q7 is a power and presence, is the visual expression of the font-size SUV. Flowing surfaces create a sculpture in motion, with the coupe-style roof, the low window strip of the panel stretched and curved surfaces have distinctive visual characteristics. The outlines are sporty, strong and elegant.
The Audi Q7 is 5.09 meters (16.70 feet) long, 1.98 meters (6.50 feet) wide and 1.74 meters (5.71 meters) tall. His pace of 3 feet (9.84 m) creates a luxurious amount of space inside. The front style is dominated by the large singleframe radiator grille with chrome and lights. As an option to provide a version of Audi xenon plus with LED daytime running lights and LED turn signals, and also a version with adaptive light cornering lights integrated in the corners, as well as the low beams, complete and highway.
Standard LEDs in the tail lights create a distinctive lighting pattern. The tailgate, which involves a rear roof poles of S-shaped pattern, and even the hood and front fenders are made of aluminum. Audi provides add-on parts in a contrasting color as standard, or, if desired, in the same color as the body. The Audi Q7 always leaves the assembly line with a shiny package. Are the optional package or package style black aluminum-look exterior, which consists of a chrome strip on the edge of the trim on the bumpers, door capping strips and door handles, and gives the Audi Q7 greater sophistication. The optional S line exterior package also adds visual emphasis to the potential of this sporty SUV.
The interior: plenty of space
The Audi Q7 sets standards for flexibility, not less than 27 seating configurations are possible. Depending on the customer's wishes, Audi can supply your large SUV like a five, the release of six or seven seats. This latest version offers comfortable individual rear seats and a third row of seats in the rear for passengers up to 1.60 meters (5.25 meters) tall. The standard second-row seat backrest can be folded to provide a level cargo floor. This increases the load capacity of 775 liters (27.37 cubic meters) to 2,035 liters (71.87 cubic feet) of the volume.
Operation is simple and logical controls and instruments are clearly readable. For the driver and front passenger has a choice of three versions of the bank: banks show, sports seats with electrically adjustable seats and air-conditioned luxury that can be heated and ventilated. The elegant interiors, with many typical details contained communicate the feeling of well being that the driver or the passenger enjoys Audi. Ambient lighting provides subtle highlights, and many of the controls are nice chrome finish. The work is typical of Audi - quality without compromise.
The choice of colors and materials emphasizes the distinct nature of the interior of the Q7. A series of notes of leather, headlinings and inserts are available, and the individual are not leather and design packages of various styles. The S line sports package uses fresh black throughout the interior, finishing with subtle accents and upholstery. Among the items included are sports suspension and 20-inch wheels.
Equipment and fittings: the highest standard of luxury
The Audi Q7 is equipped with a range of equipment features opulent standards, including two-zone automatic air-conditioning, High Beam Assistant, a complete operating system MMI radio audio system and eight speakers, a double load floor with storage compartment in the trunk and a tray of dirt. Bars are also mounted on the roof.
A standard item when the optional driver information is chosen is the on-board computer with efficiency program. This monitors the flow of energy of the vehicle and displays the most important needs of consumers with tips on how to reduce consumption.
The list of options includes luxury features such as convenience key, four-zone automatic climate control, panoramic glass roof and a cold dark box. The elements of interest for sports and leisure facilities include an electric tailgate, luggage rails and maintaining a storage compartment slide. The range of accessories are items such as a hitch pin head - the full-size SUV can tow a trailer weighing up to 3.5 tons (7716 pounds).
In the infotainment area Audi also offers a complete and modular. The top-of-the-line version has an integrated hard drive for navigation, music and telephone data, a color monitor with 3D graphics, a DVD player and voice command. It can be expanded into a luxury media center with features such as a Bluetooth mobile phone, TV tuner, digital tuner, plus rear seat entertainment. A special highlight is the advanced sound system from Bang & Olufsen with its 14 channels, 1000 watts of power and 14 speakers. In the cockpit area of ​​the two acoustic lenses reproduce the high frequencies, when the system starts, extending out from the dashboard.
The range of optional accessories is complemented by an advanced driver assistance. The adaptive cruise control system adjusts the distance, velocity and acceleration and deceleration follow through target. If a risk is detected, the integral Audi braking guard provides a warning. Audi lane assist helps the driver stay on track, Audi Side Assist uses radar to help drivers change lanes more safely. The Audi parking system advanced assists by means of a rearview camera.
The Audi Q7 V12 TDI quattro, the most powerful diesel SUV in the world
The Audi Q7 V12 TDI quattro is the world's most powerful diesel SUV. His twelve-cylinder TDI 6 liters develops 368 kW (500 hp) and delivers 1,000 Nm (737.56 pounds-ft) of torque between 1,750 and 3,250 rpm for the six-speed tiptronic. With a time of just 5.5 seconds from zero to 100 km / h (62.14 mph) and a top speed of 250 km / h (155.34 mph), the Audi Q7 V12 TDI quattro matches the performance of a powerful sports car, but is satisfied with a fuel consumption of only 11.3 liters per 100 km (20.82 U.S. mpg).
The specification of standard luxury equipment of the Audi Q7 V12 TDI includes four 20-inch wheels, Audi ceramic brakes, xenon plus, adaptive air suspension, a Bose sound system, sport seats and many other features. This version also has a top range of detail impressive physique that identify it immediately.

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