Throttle surging when braking in first!
Racer
Joined: Jan 2014
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Likes: 81
Safety Car
Joined: Aug 2012
Posts: 3,960
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Time to quit reading your copy of Stephen King's Christine and go back to reading that happy little tale called, "Superiority Through Supercharging or How I Learned to Love the Boost".
Tech Contributor
Joined: Jan 2006
Posts: 4,761
Likes: 240
From: Saint Louis MO
St. Jude Donor '14-'15
It's funny that somebody else was thinking that - that was my basis on the continued jokes. While we're at it, we can start talking about the electronic emergency brake that may turn against you! 
God I hope nobody looks at this threads and takes it seriously..... I get this feeling that at least one person will now be afraid to drive their car until the demons are exorcised.
I picked up a copy of "So You Swore You Weren't Going To Mod Your Car, But Instead Turned It Into A Monster, Dummy". Long title, and yet strangly not part of the 'Dummies' series. I wish they had a copy of "Quit While You're Ahead for Dummies", but I spent all my money on a cam install, methanol, tires, wheels, aero kit.... Somebody get me an intervention going before it's too late! 
God I hope nobody looks at this threads and takes it seriously..... I get this feeling that at least one person will now be afraid to drive their car until the demons are exorcised.
Racer
Joined: Jan 2014
Posts: 318
Likes: 81
It's funny that somebody else was thinking that - that was my basis on the continued jokes. While we're at it, we can start talking about the electronic emergency brake that may turn against you!
God I hope nobody looks at this threads and takes it seriously..... I get this feeling that at least one person will now be afraid to drive their car until the demons are exorcised.
I picked up a copy of "So You Swore You Weren't Going To Mod Your Car, But Instead Turned It Into A Monster, Dummy". Long title, and yet strangly not part of the 'Dummies' series. I wish they had a copy of "Quit While You're Ahead for Dummies", but I spent all my money on a cam install, methanol, tires, wheels, aero kit.... Somebody get me an intervention going before it's too late!
God I hope nobody looks at this threads and takes it seriously..... I get this feeling that at least one person will now be afraid to drive their car until the demons are exorcised.
I picked up a copy of "So You Swore You Weren't Going To Mod Your Car, But Instead Turned It Into A Monster, Dummy". Long title, and yet strangly not part of the 'Dummies' series. I wish they had a copy of "Quit While You're Ahead for Dummies", but I spent all my money on a cam install, methanol, tires, wheels, aero kit.... Somebody get me an intervention going before it's too late!
Safety Car
Joined: Aug 2012
Posts: 3,960
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In fact I would be very happy with one that would just wash itself.
Thread Starter
Team Owner
Joined: Apr 2013
Posts: 26,243
Likes: 4,362
From: Chirper Island
Wow, I ask a question, and go away for a day, and look what happens! I guess I should have named her Christine instead of Boudicca. 
Thanks, kp and TopBeer for your help, and thanks to the rest for the entertainment. I'ts been raining all day, so I wasn't able to try and see if it did it again and see exactly what it's doing, but I will as soon as conditions allow. It didn't really seem dangerous per se, as I was able to keep it from going any further than where I intended to stop, because my foot was already on the brake.
I'll post back after I test it a few more times.
Thanks, kp and TopBeer for your help, and thanks to the rest for the entertainment. I'ts been raining all day, so I wasn't able to try and see if it did it again and see exactly what it's doing, but I will as soon as conditions allow. It didn't really seem dangerous per se, as I was able to keep it from going any further than where I intended to stop, because my foot was already on the brake.
I'll post back after I test it a few more times.
Tech Contributor
Joined: Jan 2006
Posts: 4,761
Likes: 240
From: Saint Louis MO
St. Jude Donor '14-'15
Wow, I ask a question, and go away for a day, and look what happens! I guess I should have named her Christine instead of Boudicca.
Thanks, kp and TopBeer for your help, and thanks to the rest for the entertainment. I'ts been raining all day, so I wasn't able to try and see if it did it again and see exactly what it's doing, but I will as soon as conditions allow. It didn't really seem dangerous per se, as I was able to keep it from going any further than where I intended to stop, because my foot was already on the brake.
I'll post back after I test it a few more times.
Thanks, kp and TopBeer for your help, and thanks to the rest for the entertainment. I'ts been raining all day, so I wasn't able to try and see if it did it again and see exactly what it's doing, but I will as soon as conditions allow. It didn't really seem dangerous per se, as I was able to keep it from going any further than where I intended to stop, because my foot was already on the brake.
I'll post back after I test it a few more times.
In all seriousness, I hope your problem is resolved without issue.
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Safety Car
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From: Chesapeake VA
Tech Contributor
Joined: Jan 2006
Posts: 4,761
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From: Saint Louis MO
St. Jude Donor '14-'15
22 Hypersonic Grey HTC
Joined: Mar 2014
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From: Austin Texas
I'm reading this thread about automatics and shifting so I'll ask this here - When I'm driving my A6, non-Z51, in "M" using paddle shifters, if I forget that I'm shifting when I come to a stop, the gears shift down on their own but never go to "1"st gear. Can someone explain why it doesn't go down to first gear on its own? Thanks in advance.
Melting Slicks
Joined: May 2001
Posts: 2,596
Likes: 120
From: East Tennessee
I'm reading this thread about automatics and shifting so I'll ask this here - When I'm driving my A6, non-Z51, in "M" using paddle shifters, if I forget that I'm shifting when I come to a stop, the gears shift down on their own but never go to "1"st gear. Can someone explain why it doesn't go down to first gear on its own? Thanks in advance.
Most likely in manual its really not supposed to shift on its own, but it does so you dont lug the engine. Just like why it wont manually upshift into 5th when going 20mph. If you want it to shift into 1st automatically put it in D
Safety Car
Joined: Aug 2012
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My guess is that it has no problem starting in second AND if you forget to upshift then second in the A6 will take you well above the legal speed limit before you hit the rev limiter. If it shifted automatically to first there is a little better chance of a rear-end collision if you are accelerating up to normal road speed, as is the person behind you, and you suddenly stop accelerating at around 47 MPH when it hits the limiter in first. But this is just a guess.
Race Director
Joined: Aug 2000
Posts: 17,992
Likes: 280
It doesnt accelerate, dont recall anyone saying the car accelerating on its own is OK..
It just holds the speed when it downshifts so you see the rpm jump up, the car isnt accelerating any faster. It appears that even though you have it 1st in manual mode it may be in 2nd until you slow down enough where it does shift into 1st then it rev matches.
If it does accelerate without your foot on the throttle that would be a problem, since it only does it in track mode my assumption would be the car is rev matching so if you are going into a corner it doesnt engine brake and throw the car off balance if you downshift.
It just holds the speed when it downshifts so you see the rpm jump up, the car isnt accelerating any faster. It appears that even though you have it 1st in manual mode it may be in 2nd until you slow down enough where it does shift into 1st then it rev matches.
If it does accelerate without your foot on the throttle that would be a problem, since it only does it in track mode my assumption would be the car is rev matching so if you are going into a corner it doesnt engine brake and throw the car off balance if you downshift.
Does that sound like what your car is doing?
Racer
Joined: Jul 2010
Posts: 344
Likes: 60
From: Houston Texas
I'm reading this thread about automatics and shifting so I'll ask this here - When I'm driving my A6, non-Z51, in "M" using paddle shifters, if I forget that I'm shifting when I come to a stop, the gears shift down on their own but never go to "1"st gear. Can someone explain why it doesn't go down to first gear on its own? Thanks in advance.
22 Hypersonic Grey HTC
Joined: Mar 2014
Posts: 506
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From: Austin Texas
You will always have to manually shift it into 1st on your own. The CTS-v's and ZL1's do this as well and have been this way for a few years. They design the drive trains for the average driver and emissions standards so it will start in 2nd every time unless you force a 1st start. The first time you start your car and take off it will start off in 1st but each time after that it will start in 2nd as you continue driving.
Tech Contributor
Joined: Oct 1999
Posts: 41,058
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From: Charlotte, NC (formerly Endicott, NY)
A6 Z51. I have 6000 miles on her (since I bought her in March), but have never played around in Tr before this. Most of the miles have been in Sport Mode, in M, which I have been enjoying tremendously.
Today, I thought I should check it out. I put her in M with the mode in Track. I got to the end of the driveway (1/8 mi. long) while still in first, just being gentle and seeing what would be different, both in the acceleration, and steering (and it was just my driveway). I got to the end of the drive, and braked. Well, the car surged, and it's a good thing my foot was already on the brake. I turned onto the street, and put her in 2nd, no problem, and braked to a stop with no issue. I put it back in first and accelerated to the end of the street and stopped while still in first, and it surged again.
I put it back in Sport and did not have any issues. Disconcerting, to say the least!
Has anyone else encountered this?
Today, I thought I should check it out. I put her in M with the mode in Track. I got to the end of the driveway (1/8 mi. long) while still in first, just being gentle and seeing what would be different, both in the acceleration, and steering (and it was just my driveway). I got to the end of the drive, and braked. Well, the car surged, and it's a good thing my foot was already on the brake. I turned onto the street, and put her in 2nd, no problem, and braked to a stop with no issue. I put it back in first and accelerated to the end of the street and stopped while still in first, and it surged again.
I put it back in Sport and did not have any issues. Disconcerting, to say the least!
Has anyone else encountered this?
However, it isn't dangerous. The brakes on any car made in the world are far superior to the power output of any engine and all you have to do is push the brake pedal to stop. That is the thing all of the Toyota Drivers and Audi Drivers before them didn't do. They didn't use their brakes. If you don't believe that just think; How far does it take for your car to go from 0 to 60 mph and then how far does it take for your car to go from 60 to 0. Brakes win every time.
Bill
Thread Starter
Team Owner
Joined: Apr 2013
Posts: 26,243
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From: Chirper Island
Thank you Bill. I have tried several times this week to replicate it, but have not had it do it beyond the first two times. My foot was already on the brake so it didn't seem dangerous, just caught me off guard, because I wasn't expecting it. It's not like I drive around in Track mode anyway--usually in Sport mode, and it's never done this in any mode but Track.
Racer
Joined: Jan 2014
Posts: 318
Likes: 81
Ok, happened to me again this week! Here is exactly what happened... I was in Sport mode and manually shifting down as I was coming to a stop light and the performance shift active warning came in the screen. I know this time it had nothing to do with me simultaneously hitting the accelerator and gas because the as it rev matched and I had pulled my foot up off either control. The rpm's shot up beyond the rev match and erratically went from 2000 rpm to 4000 then to 5000 then back to 4000 as I started to apply the brake and I shifted the car to neutral and the RPM's immediately dropped. Had someone in the car with me and the guy never asked what "I" did to make it do this... he said the car was a reincarnation of Christine. He said he was scared of the car and asked me to drop him off and that a car that powerful doing that is going to kill someone and he didn't want to be in the car when it decided to take over on its own.