The Audi TDI – Tech Workshop 2014
The Audi ultra models
The term “Audi ultra” is reserved for the most fuel-efficient model of each model series. It represents not just full everyday practicality, but also sustainable mobility. Audi currently offers a total of 23 ultra models in the A3, A4, A5, A6 and A7 model series, 15 of which are equipped with TDI engines. With an average fuel consumption of 3.2 to 4.9 liters per 100 kilometers (48.0 to 73.5 US mpg) and CO2 emissions of 85 to 122 grams per kilometer (136.8 to 196.3 g/mi), the ultra models from Audi are among the most efficient cars of their respective classes – without compromising driving dynamics or comfort.
3.2 liters of fuel per 100 kilometers (73.5 US mpg), a CO2 equivalent of 85 grams per kilometer (136.8 g/mi) – the Audi A3 ultra is the most efficient model in the entire Audi lineup. It is powered by the 1.6 TDI, which is designed for minimal friction and produces 81 kW (110 hp) and 250 Nm (184.4 lb-ft) of torque. The five-door Audi A3 Sportback ultra and the A3 Sedan ultra consume 3.3. liters per 100 kilometers (71.3 US mpg), corresponding to 88 grams CO2 per kilometer (141.6 g/mi). The Audi A3 Cabriolet ultra requires just 4.9 liters of fuel per 100 kilometers (48.0 US mpg), corresponding to 114 grams CO2 per kilometer (183.5 g/mi).
The intensively revised 2.0 TDI is used in the new A4 and A5 ultra models. Depending on the version, it produces either 100 kW (136 hp) or 120 kW (163 hp) and 320 or 400 Nm (236.0 or 295.0 lb-ft) of torque. The A4 Sedan with 100 kW (136 hp) consumes just 4.0 liters of fuel per 100 kilometers (58.8 US mpg), a CO2 equivalent of 104 grams per kilometer (167.4 g/mi). These same figures for the A4 Avant and A5 Sportback, both of which are equipped with the 100 kW (136 hp) engine, are 4.2 liters per 100 kilometers (56.0 US mpg) and 109 grams CO2 per kilometer (175.4 g/mi). The A4 Sedan and the A5 Coupé have 120 kW (163 hp). Efficiency figures for the equally powerful A5 Sportback are 4.3 liters (54.7 US mpg) and 111 grams CO2 per kilometer (178.6 g/mi), and for the 120 kW (163 hp) A4 Avant 4.4 liters per 100 kilometers (53.5 US mpg) and 114 grams CO2 per kilometer (183.5 g/mi).
The ultra models in the A6 lineup use the top-of-the-line version of the 2.0 TDI, which produces 140 kW (190 hp) and 400 Nm (295.0 lb-ft). The exact values: A6 Sedan with S tronic – 4.4 liters per 100 kilometer (53.5 US mpg) and 114 grams CO2 per kilometer (183.5 g/mi); A6 Sedan with manual transmission – 4.5 liters per 100 kilometers (52.3 US mpg) and 117 grams CO2 per kilometer (188.3 g/mi); A6 Avant with S tronic or manual transmission – 4.6 liters per 100 kilometers (51.1 US mpg) and 119 grams CO2 per kilometer (191.5 g/mi).
The Audi ultra models come standard with a manual transmission with a somewhat taller gear ratio in the upper gears. The optional S tronic in the A6 model is a completely new design. The driver information system with efficiency program and the start-stop system also contribute to efficiency. Rounding out the package in models from the A3 and A4 families are aerodynamic modifications and a lower ride height. All ultra models are visually identifiable by the discreet lettering at the rear.