Audi Centre Brisbane Audi News

Sep 11, 2009

• The S5 Sportback uses a powerful, supercharged V6
• A4 3.0 TDI clean diesel quattro with stunningly clean exhaust
• The A3 1.2 TFSI consumes just 5.5 litres of fuel per 100 km

Ingolstadt – Audi will unveil three new vehicles at Frankfurt’s International Motor Show (IAA) on Tuesday 15 September 2009. Following the brand’s concern with efficient and dynamic motoring, these model are the remarkably dynamic S5 Sportback, the extremely low-emission A4 3.0 TDI clean diesel quattro, and the very efficient A3 1.2 TFSI.

These innovative engines boast some very different key data, yet they share something in common, embodying Audi’s conviction that dynamics and efficiency are not mutually exclusive; on the contrary, they go hand in hand and are mutually complementary.

Elegant dynamics: Audi S5 Sportback

The S5 Sportback is the pinnacle of the new Sportback model line. This elegant, five-door coupé is propelled by a three-litre supercharged V6 with 245 kW of power and 440 Nm of torque between 2,900 and 5,300 rpm. The S5 Sportback sprints from 0 to 100 km/h in a mere 5.4 seconds and has a top speed of 250 km/h limited by an electronic governor. It averages just 9.7 litres of fuel per 100 km — the best in this power-output category.

Very low emissions: Audi A4 3.0 TDI clean diesel quattro

Audi debuted the 3.0 TDI clean diesel engine in its large Q7 SUV and now, the world’s cleanest diesel technology will also be available in the best-selling A4.
A package of technology has been incorporated in this vehicle, boasting an array of innovative solutions for engines and extremely low emissions.

At the engine, a new common-rail injection system (which generates up to 2,000 bars of pressure), innovative pressure sensors in the combustion chamber, and an especially high-performance exhaust recirculating system collectively ensure a highly efficient and low-emission combustion process. A novel DeNOX catalytic converter, integrated within the end of the exhaust system, reduces residual nitrogen oxides. Just upstream of it, a pump injects an additive named AdBlue into the hot exhaust flow; there, this aqueous solution decomposes into ammonia — which splits the nitrogen oxides into nitrogen and water.

The A4 3.0 TDI clean diesel quattro already complies with the emission limits of the EU’s Euro 6 standard, expected to become law in 2014. It is also very fuel-efficient, averaging only 6.7 litres) of fuel per 100 km .

Efficient Downsizing: Audi A3 and A3 Sportback 1.2 TFSI

Downsizing is a cornerstone of Audi’s efficiency strategy — and the brand is relentlessly committed. The A3 model line will soon introduce yet another turbocharged gasoline engine featuring lower displacement and uniting maximum performance with minimum consumption.

Designed from scratch, the new 1.2 TFSI generates 77 kW of power. Typically for Audi, turbocharging and direct injection petrol technology once again perfectly comprise a technological one-two punch. Thanks to an aluminium crankcase, this four-cylinder engine weighs just 89.5 kilograms and this remarkably low weight also boosts its efficiency.

The 1.2 TFSI has been optimised to minimise friction. Eight valves are actuated by a single camshaft. A common-rail system injects the fuel. An electric control valve operates the turbocharger’s wastegate valve; boost pressure builds up spontaneously and scavenging losses drop.

This small engine generates 175 Nm of torque between just 1,500 and 3,500 rpm. It propels the three-door A3 1.2 TFSI from 0 to 100 km/h in 11.1 seconds and the Sportback model, in 11.3 seconds. Both versions reach a top speed of 190 km/h and, on average, consume just 5.5 litres of fuel per 100 km — emitting just 127 grams of CO2 per kilometre.