S4 Saloon Driver aids S4 Saloon

Active lane assist

Stay in lane

For greater safety and convenience, particularly on motorways and main roads the optional Audi active lane assist helps you stay in lane with gentle pulses through the steering wheel.

Using a tiny image recognition camera which watches the lane markings on either side of the car the system knows if you veer too far right or left and you’re in danger and vibrates the steering wheel to alert you. If you change lanes using your indicators, the system knows that’s safe and temporarily switches itself off.

The driver has a choice of two settings in the MMI:

  • Steering intervention early: Continuously helps the driver to stay in lane with steering impulses that centre the vehicle in its lane
  • Steering intervention late: Alerts the driver that the vehicle is possibly crossing the lane markings at the same time as providing a corrective steering prompt

Audi active lane assist is also available as part of Technology package – Advanced