If you order ACC (or DA (Option PCE)), Pre-Sense Front (not Pre-Sense Basic) will come automatically with the car/that option. Free.
Pre-Sense Front (Audi) = City Emergency Braking (VW)
1. Yes
2. If you're travelling above 18mph, and approach an obstruction, the DIS will display a red triangle, and you will hear a beep. If you still do nothing, the brakes will "jolt" to wake you up. If you still don't do anything the system will partially brake (30%) to reduce the impact, if you still do nothing, you will crash.
3. Yes, but only if the DIS alert and braking jolt has already taken place
Hope you're going to make a video of the testing
Thanks for that - now it's clear! But like so many other Audi features they do like to confuse (Pre-Sense Front = City Emergency Braking, but Pre-Sense Basic is entirely different). Bit like the Hold Assist and Hill Hold Assist, and Ultra as well. Arghh!