What does the Audi A7 blind spot monitoring system do?

I'm interested in purchasing an Audi A7 and want to know more about its safety features. Specifically, I want to understand how the blind spot monitoring system works and if it is worth the additional cost. Can anyone provide a detailed explanation?

The Audi A7 blind spot monitoring system uses sensors to detect objects in the vehicle's blind spots. It also provides visual and audible warnings if you attempt to change lanes while a vehicle is in your blind spot. It is a helpful safety feature that can prevent accidents.

I've personally found the blind spot monitoring system in my Audi A7 to be very effective. It alerts me to vehicles in my blind spots that I may not have otherwise detected. I highly recommend opting for this feature.