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Audi Q5, Audi S5: Now with new S tronic dual-clutch

Audi Q5, Audi S5
The Audi Q5 and Audi S5 are now offered with the new 7-speed dual-clutch S tronic, unfortunately Europe only.

In addition to offering the S tronic gearbox on selected gasoline and diesel versions of the all-new 2009 Audi Q5 compact SUV, which hits European dealers in the fourth quarter of this year, Audi is dropping it into the European-spec 2009 Audi S5 as a replacement for the coupe’s optional six-speed automatic transmission.

Although this S tronic gearbox is being marketed under the same name as the Borg-Warner-developed, six-speed twin-clutch transmission (previously known as the Direct Shift Gearbox, or DSG) in the U.S.-spec Audi A3 and Audi TT, it’s a completely different unit. Parent company Volkswagen AG engineered it in-house and it will be built at VW’s factory in Kassell, Germany. Cooling is significantly improved on the new S tronic, thanks to a vacuum booster that effectively doubles the amount of oil available to lubricate the twin clutches, and this helps the transmission cope with higher engine torque loads — up to 406 pound-feet (550 Nm), says Audi. The older S tronic transmission tops at 258 lb-ft (350 Nm). Moreover, because the clutches and oil pump are oiled separately from the gearsets and differentials, this S tronic gearbox can be more easily packaged with the longitudinal engine layouts used in most Audis, including the new Q5 and the A4, A5, A6 and A8 families.

Audi Q5, Audi S5

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Source: Inside Line