• SQ5
    SQ5

    The SUV for a new generation. Convincing without being persuasive. Sportive without being unreasonable. Efficient driving pleasure.

  • TTS Coupé
    TTS Coupé

    The Audi TTS Coupé is bursting with sports car genes. Dynamic driving even controlled - by the new quattro permanent all-wheel drive. The design is individualized by S-specific elements and instantly recognizable. The innovative technologies in the drive, as well as new control and display concepts - including the Audi virtual cockpit - characterize the Coupé.

  • R8 Spyder
    R8 Spyder

    Limitless intensity: the new R8 Spyder V10 combines impressive performance, sporty elegance and the fascination of open-top driving.

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Audi valvelift system

More power and torque combined with less fuel consumption – this is what every engine designer strives to achieve. The Audi valvelift system (AVS) has brought Audi a great deal closer to this goal.

Audi uses two versions of this innovative technology. On the V6 FSI engines with 2.8 and 3.2 litres of displacement, it acts on the intake valves. In this case, it regulates the amount of intake air by adjusting the lift in two stages for opening and closing the valves. The throttle can usually remain wide open – throttle losses, i.e. reduced efficiency when air is drawn in against resistance from the closed throttle, are largely eliminated. The engine is able to breathe freely, and achieves higher output and torque in combination with low fuel consumption.

On the 2.0 TFSI, AVS acts on the exhaust side. By means of specific valve timing, the amount of fresh air in the cylinders can be significantly increased with the turbocharger, particularly in the lower engine speed range. This is because the exhaust gases are expelled faster and flow to the turbocharger is improved. This results in more torque, even more dynamic response and thus a substantial increase in pulling power. The system thus offers the driver appreciably more driving pleasure. In addition, AVS permits longer gear ratios, achieving a considerable reduction in fuel consumption.