I'm not convinced the front assist is working on my 2018 Superb estate. I have the system enabled through the vehicle settings in Columbus and this is confirmed in the multi display on the dash. Distance set to medium. I assumed if I approached the car in front too quickly the system would kick in to apply braking. But nothing seems to happen. Occasionally I get the warning symbol on the MFD showing me the gap is too small but at no time does the throttle back off or brakes apply. With acc enabled, the car does slow down if I get too close to the vehicle in front so the sensors must be working. Any ideas? Thanks

It works in extreme situations and you would not notice it in normal driving.

If your car thinks you are on a collision course, it will give you a red warning on maxidot and also sound warning. If you are still about to crash, the car will try to brake for you. 

In real accident situation the auto emergency breaking would probably slow you down before impact but may not avoid it. 

 

It works perfectly on parking speeds though but thats anouther thing.

Mine kicked in last week when another car entered a roundabout in front of me. I was pulling off, so with a minor steer to the left was able to go behind as the other car cut across, but the Front Assist obviously suddenly saw the car in front and detected an imminent impact, and slammed on the brakes.

 

What I learnt was that you have to be very close and going significantly faster than the car in front.

 

 

This is not a situation that anyone (even the most idiotic driver) would be in by choice, so most people will only notice the FA once they really need it.

 

Thanks to both of you for the quick and helpful replies. Let's hope I never need to test it for real!

Mine works OK.  I was heading to a roundabout a few weeks ago - wasn't going quick and was in complete control - something I'd done countless times before.  However this time the car in front decided to back off mighty quick.  Car flashed up a red warning on the Maxidot but, as I was already slowing down, I just tapped the brakes a little harder and it was OK.  It's reassuring to know it's there if the situation ever arose.  I don't intend to deliberately test it - it's not that I don't trust it, it's that I'd rather not tempt fate!  

mine has triggered about 3 or 4 times in the 12 months i've had the car - 99% of the time in roundabouts.

 

the first time was scary - t'was my first time using the ACC.  i thought the ACC was designed to bring the car to a stop (from 80 km/h) when approaching behind a car that was already stopped at a set of traffic lights.  car realised i wasn't going to brake and screamed front assist profanities at me while it started to brake, to which i jabbed on the brakes hard!!

phewww.  happy to say my pants were not discolored as a result