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Audi Q7 update (copyright image)

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15th September, 2010

  • New supercharged 3.0 TFSI V6 petrol engine
  • Second-generation 3.0 TDI V6 now with stop-start technology
  • Revised, more efficient V8 for Q7 4.2 TDI
  • Standard 8-speed tiptronic gearbox

Audi’s Q7 sees the introduction of three new powerful, yet frugal, engines and a new 8-speed tiptronic transmission.

With a new 3.0 TFSI V6 petrol engine, a second-generation 3.0 TDI V6 and a revised 4.2 TDI V8, each Audi Q7 offers a level of technical sophistication that ensures the delivery of even more power whilst consuming less fuel.

All three new engines for the Q7 combine two core technologies: forced induction and direct fuel injection. Audi has also incorporated further technology and efficiency systems such as the now standard high-performance recuperation system, which recovers energy during braking and uses that energy to charge the battery.

In addition, to further improve efficiency and performance these new engines are now matched to an 8-speed tiptronic transmission.

New petrol engine with supercharger

The new 3.0 TFSI petrol V6 engine demonstrates Audi’s efficiency strategy: replacing engine displacement with supercharging. Within the 90-degree angle formed by the cylinder blocks, there is an engine-driven supercharger that compresses the intake air. Two charge-air intercoolers keep air temperatures as low as possible, so that the engine draws in more oxygen for the combustion process, thus improving both power and efficiency.

The result is instant response and 'muscular' performance. With 245 kW and 440 Nm to exploit, the Q7 3.0 TFSI powers  from standstill to 100 km/h in 6.9 seconds, yet returns fuel consumption of just 10.7 l/100 km and a CO2 output of 249 g/km.

Second generation 3.0-litre TDI V6 engine

The second-generation 3.0 TDI is a completely new engine which, in keeping with the Audi 'DNA', progresses the car’s performance yet ensures remarkable efficiency for a full size, seven-seat  SUV. With rated outputs of 176 kW and 550 Nm, the latter delivered from 2,000 to 2,250 rpm, the V6 TDI propels the Q7 from  standstill to 100 km/h in 7.9 seconds, yet it sips just 7.8 litres per 100 km. The fuel consumption represents a saving of 19% over the outgoing 3.0 litre TDI engine.

The latest 3.0 TDI engine also weighs less than before: 198 kilogrammes, a reduction of 20 kg.

The technical features of the new 3.0TDI engine are impressive. The new turbocharger is exceptionally responsive adding to the rapid torque build-up and the common rail injection system has also undergone further development, now boasting a maximum operating pressure of 2,000 bar, allowing for an extremely precise spray pattern.

The crankcase and cylinder heads of the new 3.0 TDI have separate cooling water circuits connected by valves. During warm-up and light load the coolant is not circulated in the engine block, thus saving energy and raising the oil more quickly to its regular operating temperature.

Of special note is the new start-stop system which switches off the engine when the Q7 comes to a standstill. It is a first for an automatic Audi with the system restarting the engine when the driver releases the brake pedal.

More efficient V8 TDI

The Q7 4.2 TDI has also achieved a 7% fuel consumption reduction, down to 9.2 litres per 100 km, through the installation of a 2,000-bar fuel injection system and the minimising of internal friction. The V8 TDI retains an impressive power output of 250 kW but now delivers even more torque with a hefty 800 Nm between 1,750 and 2,750 rpm.

The result is that the V8 TDI engine gives the Q7 sports car performance with acceleration from 0 to 100 km/h in 6.4 seconds.

Eight speed tiptronic transmission as standard

Another key  element of the significant efficiency and performance gains in the revised Q7 range is the introduction of a new eight-speed tiptronic transmission on all six and eight-cylinder Q7 models. The new automatic eight-speed gearbox lowers fuel consumption by about five per cent.

The ability to choose from eight ratios keeps the engine speed low and the engine running as close as possible to its ideal operating point. In keeping with the preservation of passenger comfort and driver responsiveness all shifts are fast, flexible and take place extremely smoothly.

At 7.25 to 1, the overall spread of ratios in the eight-speed tiptronic is unusually wide. The result is that in the lower ratios the Q7 accelerates powerfully and in the higher ratios it rolls along efficiently at low engine speeds.

As with any Audi tipronic transmission drivers can choose between the D and S programmes or make their own gear selections using either the selector lever or optional steering-wheel paddles (standard on 4.2 TDI).

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The stop-start system on the Q7 3.0 TDI is made possible by an electric oil pump that maintains pressure in the hydraulic circuit when the engine stops, and closes the clutch for restarting.

The eight-speed tiptronic transmission transfers engine power to the quattro permanent all-wheel drive train with a dynamic configuration of 40 per cent going to the front and 60 per cent to the rear wheels. However, in certain on-road or off-road situations, the mechanical-action centre differential can direct up to 65 per cent of the power to the front or up to 85 per cent to the rear.

Q7 V12 TDI remains the pinnacle SUV

The range topping Audi Q7 V12 TDI quattro, the most powerful diesel SUV in the world, retains its 6-litre twelve-cylinder TDI engine which develops 368 kW and delivers 1,000 Nm of torque between 1,750 and 3,250 rpm. It also retains the six-speed tiptronic transmission.

With the ability to sprint from zero to 100 km/h in just 5.5 seconds the Audi Q7 V12 TDI quattro matches the performance of many powerful sports cars whilst only consuming 11.3 litres per 100 kilometres.

Commitment to Progressive Performance

Commenting on the release of the revised range Audi Australia managing director, Uwe Hagen, said “The new engine range for the Q7 clearly demonstrates Audi’s commitment to progressive performance through the obvious results of our constant search for increased efficiency matched to improved performance.”

“We continue to  deliver the comfort, flexibility and practicality of a full-size SUV, without sacrificing driver responsiveness and satisfaction.”

“Combined with the impressive power and efficiency increases these revised engines deliver, the Audi Q7 is clearly positioned at the head of the premium SUV class.”

The revised Audi Q7 range arrives in Audi dealerships throughout Australia this month.

Manufacturer's List Price* – Audi Q7 range

Q7 3.0 TDI quattro                          $88,614* (8-speed tiptronic with start-stop)
Q7 3.0 TFSI quattro                        $93,814* (8-speed tiptronic)
Q7 4.2 TDI quattro                          $127,814* (8-speed tiptronic)
Q7 V12 TDI quattro                         $254,814* (6-speed tiptronic)

NOTE: * Manufacturer's List Price (as indicated in this news story) exclude dealer delivery fees and the various statutory charges.


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