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Petrol Diesel
We introduced TDI to the roads in 1989, marking a departure from the noisy, fuel-thirsty
diesel engines of the past. And since then, we've continuously refined it, recently
developing common-rail technology for even more efficiency and power. Under this
system, a series of piezo injectors use electrical charge to precisely control the amount
of fuel injected into the engine. As well as reducing noise, this allows combustion to
happen at a lower temperature, with less oxygen, which cuts down emissions. In fact,
it means that the new 2.0 TDI engine already complies with the proposed EU IV emission
limits planned for 2010. So not only does common-rail technology help to protect the
environment, it also enables us to future-proof our cars.
The new Audi A3 model range includes an impressive turbocharged direct-injection
TFSI
®
engine which is now even more efficient. TFSI
®
is a unique Audi innovation,
combining turbo-charging with the FSI
®
technology originally developed for the Le Mans
24-hour endurance race to deliver increased power and torque, as well as enhanced fuel
efficiency. Precisely the right amount of fuel and air are injected directly into the
combustion chambers, ‘unthrottling’ the engine and enabling it to ‘breathe’ more easily.
At the same time, electronics monitor the engine load and adjust the injection process.
The result – reduced heat-loss and increased output, with around a 15% reduction in fuel
consumption and significantly lower exhaust emissions. Ideal for someone who’s looking
for an uncompromising, exhilarating drive.
Engines
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