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Tuesday, February 17, 2009

Audi Q5: New 7-speed S-tronic standard in Australia

Audi Q5
Good news for all Aussie readers: the Audi Q5 comes standard with the new 7-speed S-tronic in down under.
The seven-speed S tronic incorporates two multi-plate clutches using a sold shaft to direct torque for the odd-numbered gears and a hollow shaft which rotates around the solid shaft for even gears.

Both transmission structures are continuously active, but only one is connected to the engine at any one time - for example, when the driver accelerates in third gear, the fourth gear is already engaged in the second transmission structure.

This set-up means gear changes only take a few hundredths of a second with no interruption to traction.

The seven-speed S tronic is designed for engine speeds of up to 9000 rpm and can transmit torque of up to 550Nm, ideal for mid-range engines, delivering lightning-fast gear changes and uninterrupted power flow.


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Source: Caradvice

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