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Audi A7 Sportback

Audi's new 3.0 diesel for A6 and A7

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20th May, 2013

Audi’s performance diesel has arrived in Australia, in the form of a brand new 3.0 TDI Biturbo V6 engine for the Audi A6 and A7 models. This performance orientated TDI engine propels two of Audi’s larger cars from 0 – 100km/h in under 5.5 seconds – performance that is highly rated for a diesel-powered vehicle.

This new 3.0 TDI Biturbo engine, a high-performance diesel that sets new standards for dynamism and efficiency, is now in Australia in the A6 sedan and A7 Sportback models. It is also fitted to the SQ5.

In the A6 sedan, the new level of performance results in pleasing acceleration as it sprints from 0-100 km/h in just 5.1 seconds. This is well into the realm of many sports cars and makes it the fastest-accelerating diesel-powered vehicle in Australia. Despite this, efficiency is not compromised, with frugal fuel consumption of just 6.4 litres per 100 km and CO2 emissions of 169 g/km.

This new model provides the brand with an opportunity to entice new customers to the brand in Australia. The A6 range is currently characterised by a strong TDI share of sales of 53%, and this new, sharply-positioned model is expected to find favour with performance-oriented buyers.

The performance of the A7 Sportback is just as formidable as it’s sedan 'stablemate', reaching 100 km/h from rest in 5.3 seconds. Fuel efficiency is frugl, with identical consumption and emission figures to the A6 sedan.

Such efficiency brings tangible benefits to the customer, as it brings both models well under the Luxury Car Tax (LCT) threshold of 7.0 litres per 100km. The result is that Audi’s customers pay less tax, enabling the company to secure a very strong position in the market for both of these performance models. The A6 sedan has an MLP* of $118,800* while the A7 Sportback has an MLP* of $148,600*.

Equipment highlights of the A6 3.0 TDI Biturbo include:

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  • 18-inch alloy wheels in 10-spoke V design
  • Audi drive select with efficiency mode
  • Audi music interface
  • Audi parking system with rear view camera
  • BOSE surround sound
  • Bluetooth interface with music streaming
  • Convenience key
  • Electric front seats with memory function for the driver
  • Electric glass sunroof
  • MMI Navigation plus with retractable screen and touch pad
  • Milano leather upholstery
  • Xenon plus headlights

Additional equipment highlights of the A7 Sportback 3.0 TDI Biturbo include:

  • 19-inch alloy wheels in 10-spoke design
  • 4-zone deluxe air conditioning
  • Audi parking system with front and rear camera
  • Electric tailgate function
  • Valcona leather upholstery

The 3.0 TDI Biturbo engine

The engine’s design features two turbochargers connected in a series that both provide thrust. A vacuum-actuated valve – the turbine switchover valve – connects the two turbochargers. They are water-cooled, and pulse dampers are used to reduce their vibrations. An optimised intercooler lowers the temperature of the compressed air, thus increasing the mass of the air in the combustion chamber. The turbine switchover valve is closed at low revs. The small charger with its variable turbine geometry does the lion’s share of the work here, with the large charger responsible for pre-compression. From about 2,500 rpm, the valve starts to open and the small charger increasingly transfers the major share of work to its counterpart. In the range between 3,500 and 4,000 rpm, the valve opens completely, and only the large charger still operates.

The high-performance concept also led to modifications to the engine itself. Modifications were made to the cylinder head cooling, the timing and lift of the intake cam shafts, the pistons and their oil jet cooling. A special coating reduces the friction of the piston pins. High-end methods, including plate honing and laser exposure, are used during the fabrication of the engine block at the engine plant in Györ, Hungary. These methods are used with numerous Audi engines.

The common rail system develops up to 2,000 bar of pressure and injects as many as eight partial amounts of fuel into the cylinder. The regulated oil pump and the water pump have been optimised for maximum efficiency.

The sophisticated technology results in powerful performance. The top-of-the-line TDI provides its peak torque of 650 Nm of torque from 1,450 to 2,800 rpm. It revs up to 5,200 rpm with no difficulty at all, with a sporty and sonorous sound through the entire rev range. This is due in large part to the sound actuator integrated into the exhaust system. This is essentially a loudspeaker in a “side channel” of the exhaust system.

It uses a modulation process to superimpose a defined oscillating pattern over the typical exhaust sound, underscoring the power delivery of the 3.0 TDI Biturbo with a rich tapestry of sound.


  • A6 3.0 TDI quattro sedan 230kW $118,800*
  • A7 Sportback 3.0 TDI quattro 230kW $148,600*


* Manufacturer's List Price (MLP) excludes dealer delivery fees and the numerous statutory charges (commonly known as on-road costs). Additionally, please note that all prices, fees and charges are subject to change without notice, as are the specifications.



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