Audi A7 Sportback Audi S7 Sportback
Audi A7 Sportback Audi S7 Sportback
Audi A7 Sportback Audi S7 Sportback
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42 TDI®<br />
The piezo injectors open and close in<br />
fractions of a millisecond and inject<br />
fuel several times into the combustion<br />
chamber at pressures of up to 1,800<br />
bar. In some cases, an injection process<br />
can involve the injection of the tiniest<br />
of amounts weighing less than a<br />
thousandth of a gram.<br />
Pre-injection results in a “gentle”<br />
combustion process and consequently<br />
excellent combustion acoustics and<br />
agreeable engine running<br />
characteristics.<br />
TDI®<br />
In other words: Where is the tank?<br />
One in every two <strong>Audi</strong> cars sold today is a diesel.<br />
What sounds perfectly normal now was cause for<br />
huge excitement 20 years ago, when <strong>Audi</strong><br />
revolutionised the market with the first 2.5 litre<br />
TDI engine. Since then, developments such as<br />
common rail technology have made TDI even<br />
more efficient. Piezo injectors ensure the fuel is<br />
finely and precisely distributed. Consequently,<br />
since the first TDI, the engines have become<br />
more economical, whilst specific output has<br />
increased. So it was only logical that a diesel car<br />
should then enter the world of motorsport. And<br />
successfully too: in 2006, <strong>Audi</strong> was the first car<br />
maker to win the 24 Hours of Le Mans with a<br />
diesel-powered race car, the <strong>Audi</strong> R10 TDI – a<br />
victory which it has repeated several times over.<br />
Powerful TDI engines in three power outputs<br />
are available for the <strong>Audi</strong> <strong>A7</strong> <strong>Sportback</strong>, which of<br />
course feature intelligent common rail diesel<br />
technology. With a hefty 580 Nm of torque,<br />
the 180 kW 3.0 TDI quattro accelerates your<br />
<strong>A7</strong> <strong>Sportback</strong> from 0 to 100 km/h in 6.3 seconds,<br />
the 230 kW 3.0 TDI quattro in just 5.3 seconds.<br />
And the 150 kW 3.0 TDI, with an extremely low<br />
consumption of 5.1 l and CO₂ emissions of just<br />
135 g, proves that efficiency does not prevent<br />
driving pleasure.<br />
The 3.0 TDI with 180 kW is also available as a<br />
clean diesel version with quattro and S tronic<br />
dual-clutch transmission. This engine uses<br />
technology which specifically reduces nitrogen<br />
oxides. In this version it complies with the EU6<br />
emission standard.<br />
The fuel consumption and CO₂ emission figures can be found from page 104 onwards.
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