I've had the exact same problem in very similar situations. I live in a city with chaotic traffic (Florence), which certainly wasn't even remotely conceived in the minds of whoever designed the system. With the old Octavia III, I never had a problem reversing with the classic sensors; when needed, it braked just in time. But with the Superb, it was stressful. My three-year-old daughter was in the car, and she was terrified by a seemingly unprovoked braking. Not to mention the new brakes, which I don't think appreciate these violent brakings during the break-in process. For now, I deactivate the collision sensor as soon as I get in the car. It's simply dangerous. It seems absurd to me that I can't control such an immature option. And it ****es me off because the car is wonderful if it weren't for this bull****.