The engine lineup for the new A6 and A6 Avant includes three TFSI units with output ranging between 140 kW (190 hp) and 245 kW (333 hp) and five TDI units ranging from 110 kW (150 hp) to 240 kW (326 hp). All engines comply with the limits of the Euro 6 emission standard, and their CO2 emissions have been reduced by as much as 22 percent.
At Audi, the most efficient gasoline and diesel engines bear the “ultra” label. Combined with the all-new S tronic transmission, the 1.8 TFSI ultra consumes just 5.7 liters of fuel per 100 kilometers (41.3 US mpg), corresponding to 133 grams CO2 per kilometer (214 g/mi). The 2.0 TDI ultra with 110 kW (150 hp) achieves the extremely low consumption figure – with no restrictions with respect to equipment – of 4.2 liters of fuel per 100 kilometers (56.0 US mpg) corresponding to 109 grams CO2 per kilometer (175.4 g/mi).
The top gasoline engine, the 3.0 TFSI, has been comprehensively revised. The engine developers have also completely redesigned numerous aspects of the 3.0 TDI clean diesel, which is available with either 160 kW (218 hp) or 200 KW (272 hp).
The 3.0 TDI clean diesel biturbo produces 235 kW (320 hp). Another version with 240 kW (326 hp), which can be boosted briefly to 255 kW (346 hp), powers the A6 3.0 TDI competition and A6 Avant 3.0 TDI competition special-edition models, with which Audi is celebrating 25 years of TDI technology.