1.6 TDI

The 99-gram engine (159.33 g/mile)

The new 1.6 liter engine launched in 2010 for the A3 and A3 Sportback set new benchmarks: It produced power output of 77 kW (105 hp) and developed 250 Nm (184.39 lb‑ft) of torque, yet achieved average fuel consumption of just 3.8 l/100 km (61.90 US mpg). The compact four-cylinder unit was notable for its systematic reduction of internal friction. As an alternative, Audi offered an option with a power output of 66 kW (90 hp).