DB22

ACC is configured differently around the world and you haven't posted your location so your comments are mute without knowing which laws your car must conform to.

hhhoffme

To follow up I my mail I have noted:
1. My car was hacked before and Audi reset everything to standard - so DB22 you are completely correct it was a locale issue
2. I reenabled ACC: Automatic Go in the VCDS and now I can also engage the car with the ACC lever (in addition to the throttle of course).
3. In the proces I Also played around with another option in the ACC changing from Dynamic to Sport ... which has significantly changed the aggressiveness of the ACC in Dynamic mode - much more responsive,
4. Defaulted VCDS with the MMI function so I can preselect standard distance and set it to 2 instead of 3.

Now what I am missing is to increase the Automatic Go period to 20/30 seconds, but I will probably find something in the VCDS.

DB22, you said in an earlier posting you had 12 seconds? or did I misunderstand? Generally it seems that there is a difference from engaging Automatic Go yourself once at full stop behind a car and when the car puts itself into ACC: Automatic Go once it pulls up behind another car. Any observations?

Finally... if there are anybody out there that has not enabled ACC: Automatic Go they are really missing out on the full autopiloted drive imo.

directorguy7

I've notices the same things the OP has posted. It is hard to notice any change when changing ACC to Comfort, dynamic etc..

It feels like the car reacts just a little too slowly to whats happening in front, and ends up having to brake hard (not really hard, but still, harder than what would be considered normal braking) when cars in front stop normally like at a light. It is having to make up for it not reacting enough earlier.

So what your saying is if I set it to Dynamic it should react faster, and thus not have to brake as hard eventually. Mine does it enough where I've often wondered if maybe the dealer needs to recalibrate the ACC, it just seems off. But maybe its me.

snagitseven

My observations are the ACC MMI settings appear to affect the speed at which the ACC reacts to the varying distances of a followed vehicle (based on the ACC stalk setting) and not much, if anything, to the braking when that vehicle comes to a stop. This may have something to do with the Presense Plus Braking Guard being a related but separate system from ACC.

hhhoffme

My suggestion would be to go to the ACC section of the VCDS, and change the bit to Sport instead of Dynamic. I can post the specifics when I attach the VCDS again. To me at least it made a difference once I had changed it.
And by the way the distance setting (1-4) is also changed when you swich between the modes. You can check it by following a car in Dynamic and then change the ADS to Economic, and suddenly you will see that you are in the 'red' field and the car will pull back.

DB22

If the ACC stops behind a car then it will disable after about 2 or 3 seconds. Then I re-enable it, with the stalk, and it will stay enabled for about 12 seconds. If that then times out then I have to pull the stalk again.