For the market introduction of the new Audi A6 in Europe in July the engine range will feature three turbocharged engines – one gasoline unit and two diesel engines.
All engines have been developed from scratch or partially upgraded and stand out with their outstanding power delivery, refinement and efficiency. Other four-cylinder engines, in gasoline and diesel versions, will join the lineup in the course of the year.
In the Audi A6 55 TFSI (combined fuel consumption in l/100 km: 7.1 – 6.7 (33.1 – 35.1 US mpg)*; combined CO2 emissions in g/km: 161 – 151 (259.1 – 243.0 g/mi)*), the 3.0 TFSI produces 250 kW (340 hp) and delivers 500 Nm (368.8 lb-ft) of torque over a broad band from 1,370 to 4,500 rpm. It accelerates the business-class sedan from 0 to 100 km/h (62.1 mph) in 5.1 seconds, and its top speed is electronically limited to 250 km/h (155.3 mph).
The new three-liter V6 gasoline unit with its aluminum crankcase weights just 172 kilograms (379.2 lb). Its exhaust end lies inside the 90° vee, so the short gas paths and the twin scroll charger guarantee spontaneous responsiveness. The B cycle combustion process – an Audi development – ensures superb efficiency. To support it, the Audi valvelift system (AVS) adjusts the intake valves in two stages based on load and engine speed. Another efficiency element is thermal management with its separate cooling loops for the crankcase and cylinder head. The exhaust manifold is integrated into the cylinder head; this helps the engine heat up quickly after a cold start.
The Audi A6 55 TFSI (combined fuel consumption in l/100 km: 7.1 – 6.7 (33.1 – 35.1 US mpg)*; combined CO2 emissions in g/km: 161 – 151 (259.1 – 243.0 g/mi)*) is fitted with a seven-speed S tronic and uses the quattro with ultra technology. It offers maximum efficiency and does not perceptibly differ from permanent systems in terms of traction and driving dynamics. As long as the Sedan is being driven with moderate gear changes and there is no risk of tire slip, the system uses the economical front-wheel drive. If all-wheel drive is required, a clutch instantly activates it, in many cases and in certain situations even predictively. The quattro with ultra technology also works together with the wheel-selective torque control.
The 3.0 TDI in the Audi A6 50 TDI (combined fuel consumption in l/100 km: 5.8 – 5.5 (40.6 – 42.8 US mpg)*; combined CO2 emissions in g/km: 150 – 142 (241.4 – 228.5 g/mi)*) produces 210 kW (286 hp) and delivers 620 Nm (457.3 lb-ft) of torque, the latter between 2,250 and 3,000 rpm. The standard sprint takes 5.5 seconds and the top speed of 250 km/h (155.3 mph) a mere formality. Fuel consumption is just 5.5 liters per 100 km (42.8 US mpg), which equates to CO2 emissions of 142 grams per kilometer (228.5 g/mile).
The 3.0 TDI stands out with its myriad high-tech solutions. Its sophisticated thermal management includes separate cooling loops for the crankcase and cylinder heads, the water jackets in the head feature a two-part design. Cast-in channels cool the pistons with oil. Their rings and the wrist pins are designed for minimum friction; the oil pump is fully variable. Thanks also to the crankcase made from lightweight cast iron with vermicular graphite, the powerful diesel unit weights just 190 kilograms (418.9 lb).
55 TFSI (3.0 TFSI)
50 TDI (3.0 TDI)
Max. power output
in kW (hp) at rpm
from 5,000 – 6,400
from 3,500 – 4,000
in Nm (lb-ft) at rpm
from 1,370 – 4,500
from 2,250 – 3,000
in km/h (mph)
0 – 100 km/h (62.1 mph) in s
Fuel consumption (combined)
in l/100 km (US mpg)
6.7 – 7.1 (33.1 – 35.1)*
5.5 – 5.8 (42.8 – 40.6)
Combined CO2 emissions
in g/km (g/mi)
151 – 161
(243.0 – 259.1)*
142 – 150
(228.5 – 241.4)*
* Figures depend on the tire/wheel sets used
An eight-speed tiptronic, which provides smooth, rapid gearshifts, is used to transfer the power on the V6 TDI. When coasting and rolling out, a clutch in the central transmission opens and interrupts the power connection. An electric oil pump makes it possible for the tiptronic to engage the gear that will be needed after the rolling phase. An rpm-adaptive torsion damper with a centrifugal force pendulum largely compensates for undesirable vibrations in the engine; this permits driving from an engine speed range as low as 1,000 revolutions per minute. The 3.0 TFSI is paired standard with a seven-speed S tronic. It also features a centrifugal force pendulum. Two electric oil pumps and an accumulator ensure gearshifts while the vehicle is coasting or stationary.
Depending on the transmission, Audi fits the standard quattro drive in different variants. In conjunction with the eight-speed tiptronic it is a purely mechanical version. Its self-locking center differential normally distributes the torque in a ratio of 40:60 between the front and rear axle. If the grip fades on one axle, it can be sent up to 70 percent forward and a maximum 85 percent to the rear. All seven-speed S tronic transmissions use the efficient quattro all-wheel drive with ultra technology, which instantly activates the rear axle where necessary.
With a sporty driving style, the wheel-selective torque control of the sport differential rounds out the handling by slightly braking the near-side wheels before they slip and can thus lose lateral stability.
The optional sport differential at the rear axle is another supplement for the quattro permanent all-wheel drive in the V6 diesel engines – when cornering at speed the sport differential forwards the bulk of the torque to the far-side wheel that has more traction.
All terms marked in the text are explained in detail in the technology lexicon at www.audi-mediacenter.com/en/technology-lexicon.
The equipment, data and prices specified in this document refer to the model range offered in Germany. Subject to change without notice; errors and omissions excepted.