Lake District Audi Audi glossary

Automatic transmissions reduce driver fatigue and burden helps the driver concentrate more fully on driving, traffic and the road. The four-speed automatic transmission with dynamic shift program (DSP) automatically adapts to the driving style currently preferred – from relaxed and steady to a more sporty style – and also takes traffic conditions into account. The “Keylock” and “Shiftlock” functions are added safety features. “Keylock” prevents the ignition key from being removed unless the transmission selector lever is at “P” (Park), so that the transmission is locked. After starting the engine and before the selector lever can be moved out of “P” or “N”, the brake pedal has to be pressed down
(“Shiftlock”). This prevents inadvertent vehicle movement after the engine has been started.

In the past, increased power was the main reason for using a turbocharger, but today energy conservation and reduced emissions are the primary reasons, together with good performance. Many modern diesel engines have turbochargers with variable turbine geometry (VTG). The angle of the blades changes according to engine load.