A new manual six-speed transmission is responsible for transferring the power in the Audi TT RS. Its shafts and gears can easily accommodate the high forces. A constant-velocity joint able to withstand high temperatures replaces the usual Hardy disk between the bevel box and the cardan shaft. Gear changes are performed swiftly, with precision and ease – just as you would expect on an Audi. The gear throws were shortened, and the shift lever and knob have been matched to the interior design of the TT RS.
The version of the quattro permanent all-wheel drive for transverse engines is standard in the TT RS. The central component of this system is an electronically controlled, hydraulically actuated multi-plate clutch. To further improve the already good axle load distribution, the clutch is mounted on the end of the cardan shaft upstream of the rear axle differential, another newly developed, particularly compact component designed for high loads.
A package of plates running in an oil bath within the center clutch housing can be steplessly pressed together by controlled hydraulic power. The controller constantly analyzes the driving conditions. If the front wheels begin to slip, an electric-powered rotary piston pump instantly builds up oil pressure, which the clutch uses to divert a large portion of the torque to the rear wheels. Thanks to a high-performance pressure accumulator, this process takes just a few milliseconds.
In the TT RS, quattro permanent all-wheel drive offers all of the superior capabilities that have long come to characterize Audi – added grip, slip-free acceleration, driving dynamics, safety and straight-line stability. The TT RS driving machine is dynamic and confidently stable no matter what the driving style or weather conditions.
The equipment, specifications and prices stated herein refer to the model line offered for sale in Germany. Subject to change without notice; errors and omissions excepted.