ASA - Audi Side Assist
The system helps the driver to easily change lanes thanks to radar sensors located inside the rear bumper. At speeds above 30 km / h, the side and rear of the vehicle are monitored by sensors. When there is a presence or rapid approach of a vehicle (from the rear) in the blind spot, a continuous LED signal is illuminated in the corresponding outside rearview mirror to alert the driver.
In addition, when the turn signal is turned on, the LED flashes to indicate the risk of a collision to the driver.
However, this device does not actively affect driving and can be deactivated at any time using a button on the driver's door.