Audi pre sense side
Audi pre sense side reacts in the event of a collision from the side. Amongst ohthers it uses the radar sensors of the crossing assist to calculate the probability of an accident involving traffic approaching from the side.
The system can detect the threat of side collisions at speeds of up to approx. 60 km/h (37.3 mph) and apply preventative measures to help protect occupants. These include: activating the hazard lights, tensioning the safety belts, optimizing the seating position, and closing windows as well as the optional panoramic glass roof.
This is part of the city assistance package with option id PCM