Driver Assistance Plus vs ACC Stop & Go

[BMW_RL]

Does "Driver assistance plus" have the ability to brake for you in a event of frontal collision?

What i am missing without ACC ? Active Blind Spot detection part of ACC or DAP?

[spike5150]

Collision is part of DAP and it can brake the car. I experienced this yesterday.

ACC is fantastic for stop and go traffic. Can bring u to a complete stop. Then push the resume button and off it goes. Paces the car ahead of you. I love it.

[5tony]

I have DAP but no ACC, and I can confirm that the car will apply the brake and alarm during an impending rear ending. I can't tell you if it would have come to a complete stop because when the car braked itself and the alarm sounded, I immediately applied the brake myself also.

[Kzang]

Originally Posted by 5tony

I have DAP but no ACC, and I can confirm that the car will apply the brake and alarm during an impending rear ending. I can't tell you if it would have come to a complete stop because when the car braked itself and the alarm sounded, I immediately applied the brake myself also.

Same here for me too.. happened twice for me already.

[Barbja]

Originally Posted by Kzang

Same here for me too.. happened twice for me already.

Ditto. It was little frightening the first time it happened. There must be some intelligence built in because I've found that its a whole lot less likely to brake for you if you are accelerating (like when you're going way to close to someone's bumper on a passing maneuver - the big car will show on the dash and it will beep, but it won't brake).

I gotta say that I love my ACC and it was worth every penny that I paid for it. I'm a super impatient driver and that has calmed significantly when using this feature. I'm turning on the cruise way more often than I ever had before. Besides the obvious use of stop/go traffic, if there's someone in front of me driving at a less than desirable speed, I turn it on and disengage the 'I have to be in front of him' part of my brain. Very relaxing.

I'm driving a 5-series loaner right now and I really miss it.

[BMW_RL]

Thanks for all responses

[Adrew777]

Hi all. I have DAP but do not have ACC Stop and Go and wondered about the warning tones/alarms you have all mentioned. I have had my X5 about three months and have gotten the red car in the dash and HUD many times when I am coming up on someone, but have never gotten a tone with it. Have I missed a setting somewhere or just not gotten close enough? I have mine set on the earliest warning setting.

Thanks.

[Kzang]

Originally Posted by Adrew777

Hi all. I have DAP but do not have ACC Stop and Go and wondered about the warning tones/alarms you have all mentioned. I have had my X5 about three months and have gotten the red car in the dash and HUD many times when I am coming up on someone, but have never gotten a tone with it. Have I missed a setting somewhere or just not gotten close enough? I have mine set on the earliest warning setting.

Thanks.

The red car in HUD and dash is a early warning.. if you don't brake to slow down when the car gets too close, the car will make a alarm sound and brake for you ( I am not sure if it will brake for you to a complete stop or not ). This is my experience without ACC stop option but I have drivers assistance and package.

[MattBianco]

Without ACC the precollision is limited by speed (going from memory, 35 mph), and it does something called City Braking. This is not a complete stop. With ACC it brings you to a full stop. From materials I've read over the last year, I want to say it works at speeds up to 80mph. The manual has a full description of how this works. PDF of the manual is in the sticky threads or you can download it from BMW (in the US).

DA+ uses KAFAS only, while ACC stopping uses both KAFAS and radar.

[Adrew777]

Thanks, guys. I guess I have just not gotten close enough to hear the alarm go off.

[wjbender]

Originally Posted by 5tony

I have DAP but no ACC, and I can confirm that the car will apply the brake and alarm during an impending rear ending. I can't tell you if it would have come to a complete stop because when the car braked itself and the alarm sounded, I immediately applied the brake myself also.

I had the same experience - It really saved me from a rear ender

[wjbender]

Originally Posted by MattBianco

Without ACC the precollision is limited by speed (going from memory, 35 mph), and it does something called City Braking. This is not a complete stop. With ACC it brings you to a full stop. From materials I've read over the last year, I want to say it works at speeds up to 80mph. The manual has a full description of how this works. PDF of the manual is in the sticky threads or you can download it from BMW (in the US).

DA+ uses KAFAS only, while ACC stopping uses both KAFAS and radar.

I was travelling at about 35 -40 when mine kicked in. It felt like the was braking really hard and got my attention quick. I applied the brakes, but it seemed as though it would have stopped in time to avoid a collision. I am very glad to have this feature.

[i500]

on 2014/2015 X6/5 ACC works from a full range of speed 0-135mph.
I tested and it stopped to 0 from 100mph for example. I'd say in an emergency when it happened to me twice already on road, robot brings car to a stop more violently than I would, but it works perfectly even in heavy rain and light fog. heavy fog - not so much, not sure why.

[MattBianco]

Originally Posted by i500

..... it works perfectly even in heavy rain and light fog. heavy fog - not so much, not sure why.

Heavy fog/snow and blowing leaves in the wind can interfere with the radar. Thanks for confirming the max speed for ACC braking.

[X5FX]

Originally Posted by MattBianco

Heavy fog/snow and blowing leaves in the wind can interfere with the radar. Thanks for confirming the max speed for ACC braking.

mine has failed several times in heavy rain. I get an error on the HUD and the green light on dash turns red.

[kip1]

In Finland the only difference between DA+ and the SE DA + ACC is TJA, traffic jam assistant. For some reason it is also cheaper to get DA+.