Automatic distance regulation, using radar sensors to maintain the required distance between vehicles ahead by braking and accelerating. Approximate control range for manual transmissions 18–124mph*. On S tronic transmissions it includes Stop&Go function which brakes the car to a stop and can restart automatically again (subject to certain system limits). Approximate control range for S tronic transmissions 0–124mph* Controlled via a separate steering column stalk. The distance can be adjusted in five intervals, configurable by the ASA menu

Vehicle driver assistance and safety systems are not a substitute for attentive driving. Drivers retain full responsibility for providing the necessary inputs for safe control of the vehicle. System descriptions are provided for information purposes only. System limitations and operational requirements apply. See manual for details.