With FSI® technology, the fuel is injected directly into the combustion chamber and atomised into a fine spray. This way, the fuel – metered to almost droplet precision – can be called upon the millisecond that the engine requires it. This can contribute to better use of the fuel and thus to reduced fuel consumption.
The A3 Sedan employs TFSI technology. This combines the advantages of FSI – efficiency and dynamism – with a turbocharger, which ensures even better power delivery. The 1.4 TFSI engine with 103 kW is equipped with the intelligent Audi cylinder on demand technology. During relaxed driving, when full engine power is not required, Audi cylinder on demand automatically deactivates two cylinders. The result is a significantly more efficient engine and a reduction in CO2 emissions – without you noticing the difference.
The 1.8 TFSI engine with 132 kW works with the Audi valvelift system and intelligent thermal management. More torque is generated at low engine speed by switching between two exhaust cam contours. You feel the effect directly: the engine reacts more quickly and accelerates from 0 to 100 km/h in 7.3 seconds with S tronic®. The Audi valvelift system also helps you to save fuel and reduce CO2 emissions. In addition to fuel direct injection, the 1.8 TFSI (132 kW) uses indirect injection, which makes the part load range even more efficient.
The turbochargers of both engines have an electric wastegate actuator which regulates the charging pressure particularly quickly and precisely. In addition, the exhaust manifold has been integrated in the water-cooled cylinder head, shortening the engine warm-up period and reducing the exhaust gas temperature. All these measures help to reduce consumption, particularly with a sporty driving style. All the TFSI engines on this page already meet the stringent requirements of the EU6 emission standard.
Consumption and emission values:
Fuel consumption, combined: 5.6–4.7 l/100 km
CO2 emission combined: 129–109 g/km