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Adaptive Cruise Control

 
Old 04-18-2017, 11:33 AM
  #11  
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With ACC engaged, after the car comes to a stop, after two seconds besides tapping the stalk, you can also simply step on the gas pedal to reengage it. Also, the way Brake Guard works is a red icon will illuminate and if you are going to hit the car in front, it next will chime then apply the brakes sharply, stopping your car to avoid a collision (physics notwithstanding).

On the stalk there are four ACC settings which determine the distance to a followed vehicle. Also, there should be ACC settings in the MMI, Comfort, Auto and Dynamic. These determine how fast the ACC reacts to maintaining the preset followed distances.
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Old 04-19-2017, 04:24 AM
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Don't forget though that the ACC will not panic stop for you. I believe the manual states that it will apply up to 30% braking power. If you're coming up on something quickly a louder dinging noise will ring but it'll be on the driver to apply a panic stop.

ACC systems in new Audi vehicles (2017 or 2018) *will* panic stop, i.e. apply 100% of braking force, but my 2013 will not. That said, I use it on every single drive especially in heavy traffic to help prevent me from rear-ending someone should I be distracted by anything when someone ahead of me slows down.
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Old 04-19-2017, 06:12 AM
  #13  
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Originally Posted by Jayhawk94 View Post
Don't forget though that the ACC will not panic stop for you. I believe the manual states that it will apply up to 30% braking power. If you're coming up on something quickly a louder dinging noise will ring but it'll be on the driver to apply a panic stop.

ACC systems in new Audi vehicles (2017 or 2018) *will* panic stop, i.e. apply 100% of braking force, but my 2013 will not. That said, I use it on every single drive especially in heavy traffic to help prevent me from rear-ending someone should I be distracted by anything when someone ahead of me slows down.
Are you positive about the braking guard operation? I thought ACC has always had Presense Front which includes braking guard which was introduced in all Driver assist equipped models at least by 2012. In my 2013 A6, it will provide a visible warning, then an audible ding, then increasingly apply the brakes and try to fully stop if necessary. All of which can happen w/o driver intervention rather quickly if the ACC/Brake Guard detects a followed car suddenly stopping.

The new gen 2017+ Q7 MKII has additional warning/braking features for i.e. traffic jam assist, etc.
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Old 04-19-2017, 11:42 AM
  #14  
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I think he's right, here's what I have in my user manual:

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Old 04-19-2017, 01:22 PM
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Is there a Braking Guard section in the manual?
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Old 04-19-2017, 01:23 PM
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nope
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Old 04-19-2017, 01:50 PM
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Wow. I find it surprising that Audi's 2013 premier SUV did not include the full ACC/Presense/Braking guard features found in the 2011 (ROW)/2012 NAR A6/A7. And if The Q7's system wasn't updated to match until MY2017, even more surprising.
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Old 04-19-2017, 02:16 PM
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When I was researching ACC before my purchase; it seems like at the time it was introduced the Q7 was the only one that would take you down to a complete stop, where as other vehicles of the same era did not have that capability..

Sounds like at the same time they might of been using the A6/A7 to flush out the next generation's features.. IIRC They also got LTE MMI a year or two before everything else got em too.
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