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Discussion Starter · #1 ·
Hi All

About to purchase an A5 2013. it definitely has adaptive cruise control, but reading online in the brochures from 2013, this is the definition

Adaptive cruise control with braking guard. Intelligent automatic speed and distance control system. Works at speeds from 20-100mph*, using radar sensors to measure and maintain required distance to vehicle ahead by braking and accelerating. Four programmes (distance 1 to distance 4) set via steering column controls of the cruise control system. Includes Audi braking guard – a system which triggers a visual and acoustic alarm when it detects the risk of a rear end collision with the vehicle in front. At speeds below 20mph, the system can initiate partial braking or full deceleration if a potential impact is detected or if it is not possible to completely prevent a collision, the system will focus on reducing the speed at which the vehicles collide Audi active lane assist. Helps the driver to stay in lane with gentle steering impulses for greater safety and convenience, particularly on motorways and country roads. The system informs the driver if the car is drifting out of its lane unintentionally

my question is from someones experience of owning a 2013 well spec'd out A5, DOES IT TAKE THE CAR DOWN TO A STOP? the spec definition seems to imply it will just give up <20 mph.

Thanks!
 

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Welcome
From your own post.

At speeds below 20mph, the system can initiate partial braking or full deceleration if a potential impact is detected or if it is not possible to completely prevent a collision, the system will focus on reducing the speed at which the vehicles collide.

That means it will continue to slow down and stop assuming there is enough space to do so.
Including as stated, below 20 mph.

If you have temporarily overridden it by leaning on the fast pedal, on a wet road with bald tyres, you will still end up in the boot of the car in front.

All things being equal, in slow moving stop start traffic it will take care of itself from 0 to whatever speed you have set it to, slowing down and speeding up whilst maintaining the distance you have set. Setting 1 takes some getting used to.
 

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Discussion Starter · #3 ·
Welcome
From your own post.

At speeds below 20mph, the system can initiate partial braking or full deceleration if a potential impact is detected or if it is not possible to completely prevent a collision, the system will focus on reducing the speed at which the vehicles collide.

That means it will continue to slow down and stop assuming there is enough space to do so.
Including as stated, below 20 mph.

If you have temporarily overridden it by leaning on the fast pedal, on a wet road with bald tyres, you will still end up in the boot of the car in front.

All things being equal, in slow moving stop start traffic it will take care of itself from 0 to whatever speed you have set it to, slowing down and speeding up whilst maintaining the distance you have set. Setting 1 takes some getting used to.
What I really meant was if this earlier version of adaptive cruise will complain/beep/ warn of collision/emergency under 20mph (basically in stop start traffic) which is in implied by the spec definition. if so thats very different to the more modern adaptive cruise.

My question really is to members who have had an older Audi (pre 2016 say?) with adaptive cruise - is it actually useful in start start traffic or only above 20mph.

Thanks
 

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Braking guard provides and audio/visual warning when it doesn't like the combination of speed and distance to an object (the sensitivity can be adjusted in ADS if available) at all speeds. Below 20mph it is able to apply the brakes to avoid a collision (or attempt to), and indeed that includes bringing the car to a complete stop.
 

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I have it on my 2014. Cruise control can only be set ON above 20 mph. Emergency Braking is always on regardless of the cruise being set or speed. It will bring the car to a complete stop, though I have never tried it or fully had a circumstance. My foot has gotten to the brake from the warning chime and the ABS being applied. I have always wanted to put say a cardboard box in the street and run up on it and see how well of if it will fully stop but never have.

The system is not perfect. Occasionally it pick up something on the side of the road and momentarily chime/apply the brake for a second. More frequently if there is a car ahead of me, and ihe car makes a right turn, and is out of my path, the system still is tracking the car as slowing/stopped and will momentarily apply the brake.

I have always been afraid of what would happen if a flying piece of debris hits/covers it while driving and if the car will stop in the middle of the road

I did find out this winter, (slow) ice build up will just deactivate the system. I got a warning cruise not available.

I do find on the highway, the only time I set the cruise, it does slow down fairly hard as opposed to just decreasing the throttle. Pretty much as soon as a car is ahead of me, turn off the cruise. You can set the distance for the vehicle ahead of you. The default is fairly far. I set it to the minimum.
 

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Discussion Starter · #6 ·
Thanks Neil for the detailed explanation. Just to confirm, the "distance" feature for the cruise control "i.e. what makes it adaptive cruise control, does that work below 20mph?

I just want confirmation that the cruise control will automatically stop the car if say i turn it on at 30mph and then go into stop start traffic.

Thanks
 

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The adaptive cruise control and emergency braking are two separate things

- Emergency Braking is on 100% of the time, regardless if the cruise is on/off. I believe I remember once a LONG time ago I was at a stop light, crawling and not paying attention and the emergency braking activated and saved me from hitting the car in front.

- Distance is only for Adaptive cruise control and how far it will sense the vehicle in front. I don't know what happens with the adaptive and traffic slow that much to below 20 and if cruise changes to off. I have never left the adaptive on in traffic. I have hit the brake manually by then and cruise is off when you hit the brake. I only use it on the highway.

A basic google search and watching one of the youtube videos (A7) shows it working in slow traffic and he says, if it comes to a stop, it will not start going unless you hit the gas.

Edit again, the stop'/go may be an A7 feature 2014 RS5 Active Cruise stop and go I suppose I could go get my manual lol. Also the above thread reminds me, that the emergency brake on/off may have a setting in the MMI. Regardless, when it is ON it is independent of the cruise bein ON

- Cruise. Control can only be set ON above 20 or 30. I don't know the exact speed
 

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Discussion Starter · #9 ·
The adaptive cruise control and emergency braking are two separate things

- Emergency Braking is on 100% of the time, regardless if the cruise is on/off. I believe I remember once a LONG time ago I was at a stop light, crawling and not paying attention and the emergency braking activated and saved me from hitting the car in front.

- Distance is only for Adaptive cruise control and how far it will sense the vehicle in front. I don't know what happens with the adaptive and traffic slow that much to below 20 and if cruise changes to off. I have never left the adaptive on in traffic. I have hit the brake manually by then and cruise is off when you hit the brake. I only use it on the highway.

A basic google search and watching one of the youtube videos (A7) shows it working in slow traffic and he says, if it comes to a stop, it will not start going unless you hit the gas.

Edit again, the stop'/go may be an A7 feature 2014 RS5 Active Cruise stop and go I suppose I could go get my manual lol. Also the above thread reminds me, that the emergency brake on/off may have a setting in the MMI. Regardless, when it is ON it is independent of the cruise bein ON

- Cruise. Control can only be set ON above 20 or 30. I don't know the exact speed
Thanks Neil, yes thats my question about it being available in an A5. the cruise in the A5 does not include the words "stop & go", which is included in other later versions.
 
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