Chassis

The chassis of the new Audi A6 combines sporty precision with supreme comfort. The wheel control arms and many other components are made of lightweight aluminum. Each of the front wheels is guided by five control arms, with self- tracking trapezoidal-link suspension operating at the rear.

The standard alloy wheels are 16 or 17 inches in diameter, depending on the engine version. Audi and quattro GmbH offer wheels with up to 20-inch rims as an option. Tire formats ranging from 225/60 to 265/35. A tire-pressure monitor display is standard, and certain tires can be optionally equipped with emergency running properties.
The four disk brakes must be matched to its power, weight, and top speed. Brakes internally ventilated at the front are generously sized and powerful. The brake light operates on an adaptive principle; when the brakes are fully applied, it warns the traffic behind by pulsating rapidly.

The redesigned power steering.  The weight of the engine block on the front end requires assistance for the steering system.  Power Steering has an electromechanical drive that operates in a highly efficient manner. The degree of support it provides is based on the speed. With a ratio of 16.1:1, the steering is sporty and direct, providing precise feedback from the road. It cooperates closely with the optional Audi active lane assist system and also proves useful with braking when the car has traction on only one side: The steering impulses it gives in this case make it easier for the driver to steer in the right direction.

Audi has equipped the new A6 with steel springs that ensure a high level of ride comfort. Sport suspension as well as S line sport suspension from quattro GmbH are alternative options. Air suspension with four electronically controlled shock absorbers is also optionally available. The adaptive air suspension has been redesigned, with spring struts up front and separate air springs and dampers in the back. The system sets the ride height of the body to one of three levels. On the highway, it lowers the body, increasing stability and decreasing fuel consumption.

All front-wheel drive models of the A6 have the ESP electronic stabilization program.  The Electronic Stabilization Program (ESP) helps make the vehicle easier to control in handling situations close to the limit. Electronic Stabilization Program with electronic limited-slip differential on board. This software solution operates much like the torque-vectoring function in the quattro train; however, it focuses its light brake applications solely on the inside front wheel. This braking action ensures that the sedan remains neutral longer during fast cornering, practically eliminating under-steering, improving grip, and making handling more dynamic.
Among the high-end solutions in the new A6 is the Audi drive select dynamic handling system. In its standard version, it controls the engine management, power steering, and the automatic air conditioning system. The driver can vary the function of these components between the five modes comfort, auto, dynamic, individual, and efficiency.  For TFSI models, the efficiency operating level supports a driving style that provides for optimum fuel consumption by customizing the characteristics of various vehicle systems.

A6 customers can expand the system to include the automatic transmission, adaptive air suspension, ACC with stop & go function, adaptive lights, and ambient lighting options. Soon to come are the sport differential and dynamic steering, which varies its ratio according to the speed at which the car is traveling.