Audi A4 and A5 With An All New Engine
Published: 6th February 2009
The S tronic twin-clutch automatic transmission now brings its lightning fast changes to the Audi A4 2.0 TFSI quattro with its brand new turbo charged and directly injected FSI engine enhanced by Audi valvelift technology for improved engine 'breathing'. In Saloon form, the Audi A4 2.0 TFSI quattro S tronic can power to 62mph from rest in 6.5 seconds - a 0.1 second improvement over the manual version - reach a top speed of 150mph and return 38.2mpg according to the combined cycle test. In the Audi A5 2.0 TFSI quattro S tronic, the sprint to 62mph can be completed 0.3 seconds more quickly than in the manual at 6.2 seconds, and a top speed of 150mph can be reached, while combined economy and CO2 output match the Audi A4 at 38.2mpg and 172g/km.
These impressive economy figures are identical to manual Audi A4 and Audi A5 equivalents, and in terms of CO2 output the A5 S tronic actually shows a reduction versus the manual version's 173g/km, highlighting the fact that in contrast to most automatic transmissions S tronic demands no compromise in return for added convenience.
Advanced electro-hydraulic controls and the alternate use of two clutches enable the S tronic gearbox to deliver lightning fast automatic or manual shifts via the gear lever or steering wheel-mounted paddle controls with no interruption of the engine's power delivery across seven ratios.
The first of the two clutches serves the odd-numbered gears and reverse, and the second the even-numbered gears, so when the Audi A4 or A5 are travelling in third gear, for instance, fourth is already pre-selected in anticipation. As soon as the shift command is given, the first clutch is disengaged and the second engaged in just a few hundredths of a second, virtually seamlessly.
The sporting credentials of both the Audi A4 and Audi A5 2.0 TFSI quattro models can not only be enhanced by the new S tronic transmission, but also by the extra cost option of the Audi drive select adaptive dynamics system. With its influence over throttle response, transmission points, steering weighting and damper control Audi drive select delivers the sharpest possible response and the highest degree of poise in all situations.
