The fast, spontaneous and sporty eight-speed tiptronic transmission with optimized shift times comes as standard with the new RS 4 Avant (combined fuel consumption in l/100 km: 8.8 [26.7 US mpg]; combined CO2 emissions in g/km: 200–199 [321.9–320.3 g/mi]).
The driver can choose between the modes D and S, and there are special RS shift paddles on the steering wheel for manual gear changes. All commands are sent to the transmission electronically – using shift-by-wire technology. The dynamic starting function ensures optimal traction when the engine starts, allowing the RS 4 Avant to realize its full acceleration potential. To do so, ESC sport mode must be active, and the selector lever must be set to the S position. In manual mode, the driver controls the gear changes using the shift paddles on the steering wheel or by tapping the selector lever. Once the engine speed threshold is reached, a shift light appears in the driver information system or the optional head-up display advising the driver to shift up.
Dynamic power distribution: The quattro drive
The quattro permanent all-wheel drive is a unique feature in the segment. With its asymmetric and dynamic design, it contributes greatly to the sporty and stable handling of the RS 4 Avant. During regular driving, the system uses a rear-weighted setup. Its purely mechanical center differential lock sends 60% of the torque to the rear axle and 40% to the front axle. When slippage occurs on an axle, most of the power immediately flows to the other axle – up to 70% to the front, and up to 85% to the rear.
The wheel-selective torque control enhances the mechanical functionality of the quattro drive. The agility, precision, stability and optimal traction are further enhanced by the software of the ESC Electronic Stability Control.
The optional sport differential with RS-specific tuning ensures even more dynamic responsiveness when steering and accelerating. The system actively and selectively distributes the torque between the rear wheels.
RS-specific tuning: Stabilization control with three modes
The ESC Electronic Stability Control including slip regulation has RS-specific tuning. In addition to normal mode, there is also a sports mode, which delays the intervention of the ESC. If the driver presses the button for longer than three seconds, the ESC switches off completely.
All terms in blue in the text are explained in detail in the technology lexicon at www.audi-mediacenter.com/en/technology-lexicon.
The specified equipment, data and prices relate to the model range on offer in Germany. Subject to changes and errors. Figures on the fuel consumption and the CO2-emissions (found from page 2 onwards) vary in case of given ranges depending on the used combination of wheels/tires.