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what are adaptive brake lights?

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Old 01-07-2014, 09:02 PM   #1
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Default what are adaptive brake lights?

And import CD 's? Can you get oil temp and turbo boost with vag com?
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Old 01-07-2014, 11:11 PM   #2
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When you brake normally, the back lights go on as normal; when you brake in an emergency, they blink several times per second to warn the cars behind.
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Old 01-08-2014, 11:42 AM   #3
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Is that the normal setting or do you have to program it?
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Old 01-08-2014, 11:55 AM   #4
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Quote:
Originally Posted by rickymp View Post
Is that the normal setting or do you have to program it?
You might have to buy a BMW, Mercedes-Benz or Volvo. I haven't heard of any Audi models that have them.
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Old 01-08-2014, 12:10 PM   #5
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Quote:
Originally Posted by rickymp View Post
Is that the normal setting or do you have to program it?
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Originally Posted by tenspeed View Post
You might have to buy a BMW, Mercedes-Benz or Volvo. I haven't heard of any Audi models that have them.
Actually, I believe you can add the emergency braking behavior with the VCDS Vag-Com:

Enable Adaptive brake lights
[46 - Comfort System] [Coding - 07] -> Long Coding Helper -> Byte 8
Bit 0 Emergency Brake Flashing via Turn Lights active - check box
Bit 1 Emergency Brake Flashing via Brake Lights active - check box

Click the image to open in full size.

I haven't tried either of the options but apparently others have had success.
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Old 01-08-2014, 12:22 PM   #6
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Actually, I believe you can add the emergency braking behavior with the VCDS Vag-Com:

I haven't tried either of the options but apparently others have had success.
Thank for the good info. I usually tap the brake pedal several times when I predict trouble ahead on the highway. I did it yesterday when traveling near the Rochester NY airport that is known for white outs from blowing snow and saw many brake lights ahead. A RIT student lost her life in a multi-car accident in the same area a few winters ago.
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Old 01-08-2014, 06:27 PM   #7
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Correct. Works as advertised, in 'panic stop' situations.
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Old 01-09-2014, 05:27 AM   #8
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it only activates if you do a hard braking so called emergency braking. its a neat feature that catches drivers eyes on the road.
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Old 01-09-2014, 11:29 AM   #9
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I have it enabled on mine, but never knew or been able to check if they actually work.
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Old 03-25-2014, 05:48 AM   #10
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Originally Posted by Grapeking View Post
Correct. Works as advertised, in 'panic stop' situations.
Does anyone know what triggers it? Is it -'ve G or brake pedal pressure or?

I enabled it but I have not seen it work, do I really have to stomp on the brakes?
I noticed a Smart car with them and they flashed Every time he braked even if it was a slight slowing.
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Old 03-25-2014, 06:05 AM   #11
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It probably uses an accelerometer. I'm certain you must be braking very aggressively to trigger it... near the verge of lock up.

If you ever watch Top Gear (UK), you can see many cars (all price ranges) have this feature. Maybe it's a European regulation? The cars typically flash lights at each corner of the car (think of our 4 way flashers).
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Old 03-25-2014, 09:30 AM   #12
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It probably uses an accelerometer. I'm certain you must be braking very aggressively to trigger it... near the verge of lock up.

If you ever watch Top Gear (UK), you can see many cars (all price ranges) have this feature. Maybe it's a European regulation? The cars typically flash lights at each corner of the car (think of our 4 way flashers).
The EU flashes only the brake lights at the rear including the CHMSL. 4 way flashers are always amber in the EU and therefore not indicative of braking.
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Old 03-25-2014, 09:52 AM   #13
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Quote:
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4 way flashers are always amber in the EU and therefore not indicative of braking.

Clarification:

I'm referring to the front amber lights that flash under heavy braking. They must be flashing in conjunction with the rear lights. I recall seeing these mainly on Asian cars they test. When viewed from the front, it looks like the 4 way flashers have been engaged while the car is under heavy braking.
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Old 03-25-2014, 10:02 AM   #14
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Is this going mainstream in the USA ?

http://www.motorweek.org/reviews/roa...2_porsche_911/

See video @ 1:42
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Old 03-25-2014, 10:09 AM   #15
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Well I had the opportunity to stop emergently the other day--I drove around a bend towards an intersection, and a driver in a Mazda 3 didn't see me coming, and tried to make a left turn in front of me. I hit the brakes hard, and ABS kicked in for a split second, and I was able to stop in time.


I had turned on the "hazard light w/ABS function" in VCDS a while ago but this was the first time I witnessed it in action.


The hazard lights came on, but unlike my Jetta, they stayed on until I switched them off with the hazard light switch.


Seems like a good idea to keep the hazards going, especially in my situation, where I was at a full stop and cars may have been coming around the bend, not expecting a car fully stopped in the road.
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Quote:

Look at the BCM - address 09

Byte 16

Bit 1 is for brake light flashing

Bit 2 is for turn signal flashing.


I have both activated, but have yet to see the turns flash.

Got to brake harder......
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Old 03-25-2014, 11:20 AM   #16
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Originally Posted by rickymp View Post
Can you get oil temp and turbo boost with vag com?
I've been enable to turn on the "lap timer" function on my '11 A4...that yields your oil temp readout.

This used to work for watching boost and other stuff. You'd have to download and try it:

http://www.ross-tech.com/vag-scope/index.html

Click the image to open in full size.
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Old 03-25-2014, 11:36 AM   #17
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I have never seen the front flashers come on under braking in EU so have others seen it especially in Asia?
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Old 03-25-2014, 11:42 AM   #18
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Originally Posted by uberwgn View Post
and
I VAGed Bit 1 but not 2 so will the Bit 2 make the front ones flash?

I have done a lot of research on VAG-COM but although you get the programming instructions, it is difficult to get info on what to expect if you change an option.
It is also difficult to learn what is available because of the different years, models and options. Obviously I started looking in the A6 forum but it turns out that the codes are common across numerous platforms etc..
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Old 03-25-2014, 11:55 AM   #19
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Originally Posted by DB22 View Post
I VAGed Bit 1 but not 2 so will the Bit 2 make the front ones flash?

I have done a lot of research on VAG-COM but although you get the programming instructions, it is difficult to get info on what to expect if you change an option.
It is also difficult to learn what is available because of the different years, models and options. Obviously I started looking in the A6 forum but it turns out that the codes are common across numerous platforms etc..
I haven't tinkered with that but I believe I set the adaptive brake lights on both our cars. I've never noticed them activating

Those notes I posted are for a VW Jetta.

yeah, I hear ya in terms of not comprehending fully what the outcome might be. That's why I tinker with much caution and have a full scan of my cars saved to a txt file before any tinkering begins
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Old 03-25-2014, 01:51 PM   #20
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Quote:
Originally Posted by tenspeed View Post
Thank for the good info. I usually tap the brake pedal several times when I predict trouble ahead on the highway. I did it yesterday when traveling near the Rochester NY airport that is known for white outs from blowing snow and saw many brake lights ahead. A RIT student lost her life in a multi-car accident in the same area a few winters ago.
Another safety measure is, with your low beams on, to hit the 'rear fog light' button. I've driven into rainstorms on the interstate where you can't see five feet in front of you. I'm always aware that someone could plow into me. That little bit of extra light will shine a bit further when your not blinking or hitting the brake lights.
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Old 03-25-2014, 01:51 PM
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