High-powered: the TFSI engines
For the new TT Audi offers two direct injection gasoline engines whose performance has been enhanced. With 145 kW (197 hp) in the 40 TFSI as a new entry-level engine and 180 kW (245 hp) in the 45 TFSI, both engines afford significantly more power.
| Audi TT | 40 TFSI | 45 TFSI | 45 TFSI quattro |
| Engine type | 4-cylinder direct injection gasoline engine | 4-cylinder direct injection gasoline engine | 4-cylinder direct injection gasoline engine |
| Displacement in cc | 1,984 | 1,984 | 1,984 |
| Max. power output in kW (hp) at rpm | 145 (197) at 4,300 | 180 (245) at 5,000 | 180 (245) at 5,000 |
| Max. torque in Nm (lb-ft) at rpm | 320 (236.0 lb-ft) at 1,500 | 370 (272.9 lb-ft) at 1,600 | 370 (272.9 lb-ft) at 1,600 |
| Top speed in km/h (mph) | 250 (155.3/ | 250* (155.3 mph) | 250* (155.3 mph) |
| Acceleration 0 – 100 km/h (62.1 mph) in s | 6.6 | 5.9 | 5.9 |
| Combined fuel consumption in l/100 km (US mpg) | 6.3 – 6.0* (37.3 – 39.2) | 6.8 – 6.4* (34.6 – 36.8) | 7.3 – 7.0* (32.2 – 33.6) |
| Combined CO2 emissions in g/km (g/mi) | 145 – 137* (233.4 – 220.5) | 154 – 147* (247.8 – 236.6) | 166 – 160* (267.2 – 257.5) |
| Powertrain | Front-wheel drive | Front-wheel drive | quattro all-wheel drive |
| Transmission | 7-speed S tronic | 6-speed manual transmission / | 7-speed S tronic |
**governed
The 40 TFSI and the 45 TFSI were developed in keeping with the Audi rightsizing philosophy. In particular, turbocharging replaces the displacement and combines with direct injection for high efficiency. Both engines comply with the EU 6d_TEMP emission category and have a gasoline particulate filter.
Also shared by the two engines is the sound actuator, combined with the Audi drive select dynamic handling system as a standard feature. In the dynamic setting, the sound actuator makes the exhaust sound even sportier and more sonorous.
The TFSI engines use complex thermal management. The core comprises two electrically driven rotary valves combined in a single module. After a cold start, they quickly bring the motor oil to temperature. Depending on the driving situation, they maintain a coolant temperature between 85 and 107 degrees Celsius. The exhaust manifold is located in the cylinder head, where it is bathed in water. This solution also contributes to a quick warm up. At full load, it reduces the temperature of the exhaust gas and thus fuel consumption because there is no need to enrich the mixture for cooling purposes.
The intake and exhaust camshafts are adjustable; on the exhaust side, the Audi valvelift system also varies the stroke of the valves to further minimize charge changing losses. The turbocharger develops its relative charge pressure of up to 0.8 bar very dynamically. Its electric bypass valve is particularly fast-acting and precise. The turbine wheel can withstand exhaust gas temperatures of up to 980 degrees.
*Fuel consumption and CO2 emission figures given in ranges depend on the tires/wheels used.
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.