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Drivetrain The new Audi A6 is entering the market initially with a total of five power units fitted in longitudinal arrangement - three petrol and two TDI engines. All these engines share a level of power and torque that is outstanding in this segment of the market: - new: 4.2 V8 - 246 kW (335 bhp) - 420 Newton-metres All of these power units, as featured in the new Audi A6, are entering the market for the first time and comply with the EU 4 emission standard. The six- and eight-cylinder engines come from Audi's new V-configuration engine family with a 90° cylinder angle and a distance of 90 millimetres (3.54") between the cylinders. They are compact in design and feature maintenance-free camshaft drive by means of a chain, as well as low-friction roller arm valve drive. Petrol engines The powerful 4.2 V8 with chain drive made an outstanding debut in the Audi S4 towards the end of 2002. Now this supreme power unit has been re-tuned and updated for the new Audi A6, offering powerful torque up to maximum engine speed plus an agile response and superior fuel economy all in one. The new 3.2 FSI six-cylinder has all the features of a cutting-edge petrol engine. Direct fuel injection with on-demand fuel supply, four-valve technology, a variable intake manifold and infinitely variable camshaft adjustment gives the driver dynamic and powerful reaction to every movement of the accelerator plus a broad useful speed range of up to 7200 rpm, muscular torque and an equally high standard of fuel efficiency. The new 2.4 V6 is the entry-level power unit leading into the versatile range of petrol engines available for the Audi A6. Based on the new engine block of the 3.2-litre power unit and featuring intake manifold fuel injection, this smaller engine provides an exemplary synthesis of superior performance, refinement and exemplary fuel economy. TDI engines The new 3.0 TDI six-cylinder engine introduces outstanding power and muscle in the sporty business class, offering output and torque highly impressive in every respect: 225 bhp and 450 Newton-metres. Maximum torque is available just above idle speed, starting at a mere 1400 rpm and giving the driver forceful acceleration at all speeds. Further fortes are the engine's highly efficient noise management and fulfilment of the strict EU 4 emission standards. This versatility of the highest calibre is based on the latest generation of common rail fuel injection with piezo injectors conveying fuel into the combustion chambers at a pressure of up to 1600 bar and in five carefully graded stages. The 2.0 TDI four-cylinder version with unit injector is one of the most modern engines in the market today. Again, the particular strength of this engine is its outstanding output and torque combined with equally impressive all-round economy. The new Audi A6 2.0 TDI is able to easily cover a range of more than 1,100 kilometres or 680 miles on one single tank (market launch: the second half of 2004). Transmission The supreme fuel economy and dynamic performance offered by the new Audi A6 also results from the standard fitment of six-speed manual/six-speed automatic transmissions with a wide range of gear increments. A new highlight of the manual gearboxes is the introduction of the ML gearbox generation, the abbreviation "ML" standing for "Manual/Longitudinal". The advantages for the driver are enhanced all-round efficiency combined with optimum gearshift operation featuring ultra-short, precise shift travel. After making its successful production debut in the Audi A6 2.8 in the year 2000, multitronic now once again proves its special qualities in the new A6, combining the benefits of a manual gearbox with those of a geared automatic transmission. A new feature is the introduction of 7 shift stages in the tiptronic mode. Benefiting from this kind of technology, shift comfort is superior to even a conventional automatic converter transmission, while the transmission's dynamic performance and all-round economy can by all means compare with the qualities of a manual gearbox. And whenever the driver wishes to actively intervene in the transmission process, he is able to do so in six predefined stages by means of shift paddles on the steering wheel. The particularly high-torque 4.2 V8, 3.2 FSI and 3.0 TDI power units are also available with six-speed tiptronic transmission converting the supreme power of these engines into an equally supreme synthesis of operating convenience and dynamism. quattro permanent all-wheel drive is a typical feature of all high-performance Audi models. With the power unit and drivetrain of the new A6 being fitted longitudinally, all models come with a Torsen centre differential distributing engine torque in a straightforward but very effective flow of power to the front and rear axles and thus making a significant contribution to the driving dynamics and superior safety even in extreme situations so typical of quattro drive. The 4.2 and 3.0 TDI models come as standard with quattro all-wheel drive, which is optional on the 3.2 FSI. |
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