Notices
Macan 2014-Current
Sponsored by:
Sponsored by: HBI Auto

Auto on/off feature question

Old Dec 27, 2021 | 02:31 PM
  #1  
wbferran's Avatar
wbferran
Thread Starter
Rennlist Member
 
Joined: Aug 2021
Posts: 148
Likes: 24
Default Auto on/off feature question

I just started using this option to see how I liked it. I understand that there are many things that need to be correct before it will actually work. Most of my recent trips have been city miles. In general I would say it only rarely turns off the engine at stoplights.

to me, it seems most of the parameters have been met for auto off, but the engine continues to run and I will get the “yellow A”, indicating one or more requirements for auto off have not been met. It definitely has worked, but in the last few days it hasn’t worked one time. It’s not a big deal, but I was curious if I was missing something? Thx
Reply
Old Dec 27, 2021 | 03:21 PM
  #2  
Kitc2246's Avatar
Kitc2246
Drifting
5 Year Member
 
Joined: Apr 2018
Posts: 2,021
Likes: 647
From: Mechanicsburg pa
Default

State of battery charge is the number one reason Start-Stop does not work. How old is your battery? It not working could be a sign your battery is aging out and/or your drivers are not long enough to get a full charge. Check your manual, but some features like Sport turn off Start-Stop. If you have a CTEK or other battery maintainer give the battery a full charge and see if it works.

Reply
Old Dec 27, 2021 | 04:24 PM
  #3  
wbferran's Avatar
wbferran
Thread Starter
Rennlist Member
 
Joined: Aug 2021
Posts: 148
Likes: 24
Default

Originally Posted by Kitc2246
State of battery charge is the number one reason Start-Stop does not work. How old is your battery? It not working could be a sign your battery is aging out and/or your drivers are not long enough to get a full charge. Check your manual, but some features like Sport turn off Start-Stop. If you have a CTEK or other battery maintainer give the battery a full charge and see if it works.

thx. That might be it. Lots of short trips around town recently. Very little longer highway drives to fully charge the battery, and some colder temps.
Reply
Old Dec 28, 2021 | 09:12 AM
  #4  
Petza914's Avatar
Petza914
RL Community Team
Rennlist Member
15 Year Member
 
Joined: Oct 2007
Posts: 28,595
Likes: 8,386
From: Clemson, SC
Default

The first button I press is the one to defeat the silly auto start/stop feature in any car I get into that has it. Carmakers had to implemwnt them for emissions reasons, but it's one of the dumbest things they've ever added. They're easy to confuse, prematurely wear the starters out, and can be deadly in an emergency. Even in the cars where you can't defeat it, using just enough brake pedal pressure to hold the car in place can keep the stop feature from engaging. Sport mode usually keeps them from engaging as well.
Reply
Old Dec 28, 2021 | 01:28 PM
  #5  
wbferran's Avatar
wbferran
Thread Starter
Rennlist Member
 
Joined: Aug 2021
Posts: 148
Likes: 24
Default

Originally Posted by Petza914
The first button I press is the one to defeat the silly auto start/stop feature in any car I get into that has it. Carmakers had to implemwnt them for emissions reasons, but it's one of the dumbest things they've ever added. They're easy to confuse, prematurely wear the starters out, and can be deadly in an emergency. Even in the cars where you can't defeat it, using just enough brake pedal pressure to hold the car in place can keep the stop feature from engaging. Sport mode usually keeps them from engaging as well.
I don’t disagree with that. I’m just curious about how things work, as well as when those things don’t work as advertised.
Reply
Old Dec 28, 2021 | 08:29 PM
  #6  
///Bruce's Avatar
///Bruce
Burning Brakes
5 Year Member
 
Joined: Sep 2018
Posts: 804
Likes: 215
Default

I hate that feature! I do! It's turned off and stays off in my '18 model.
Reply
Old Dec 29, 2021 | 09:30 AM
  #7  
pitt911's Avatar
pitt911
Drifting
10 Year Member
 
Joined: Jun 2014
Posts: 3,105
Likes: 1,456
From: some where nice
Default

I hate that feature too, even in my 488 , the damn thing shuts off occasionally , as I don't drive the car frequently so I always forget to push the button.
Reply
Old Dec 29, 2021 | 10:54 AM
  #8  
Pavegeno928's Avatar
Pavegeno928
Rennlist Member
15 Year Member
 
Joined: Sep 2006
Posts: 2,122
Likes: 571
From: Alabama
Default

On my '19S, when not in Sport or Sport Plus modes (which automatically deactivates A/SS, I have set the mode switch on the steering wheel for the "Individual" setting to include A/SS off. When I roll to a stop, I flick the dial CCW once to defeat A/SS because I'm not a fan. I turn it back on once rolling. It's easier than pressing the button on the center console.

Why, because the PDK with A/SS on and in normal mode will "Sail" when going down hills or incline. You will see the RPMs drop to idle thus saving gas. It will perfectly re-engage when the speed barely drops.
Reply
Rennlist Stories

The Best Porsche Posts for Porsche Enthusiasts

story-0

9 Vehicles Porsche Helped Engineer that Aren't Porsches

 Verdad Gallardo
story-1

9 Features and Characteristics That Only Porsche People Understand

 Verdad Gallardo
story-2

I've Written 500 Rennlist Articles: Here's How Porsche Has Changed Along the Way

 Joe Kucinski
story-3

10 Most Unnecessary Porsches Ever Built (And Why We Love Them)

 Verdad Gallardo
story-4

Porsche 911 GT3 S/C vs 718 Spyder RS: 10 Categories, One Winner

 Joe Kucinski
story-5

This Builder Is Turning Heads With Its Slantnose 911 Creation

 Verdad Gallardo
story-6

Porsche 911 GT3 Artisan Edition Pays Homage to Japanese Culture

 Verdad Gallardo
story-7

Porsche Reveals Coupe Variant of the Electric Cayenne With a Fresh Look

 Verdad Gallardo
story-8

10 Porsche Colors That Have More Personality Than Most People

 Verdad Gallardo
story-9

Guntherwerks' Final Speedster Creation Is the Ultimate Porsche Restomod

 Verdad Gallardo
Old Dec 30, 2021 | 03:02 PM
  #9  
wbferran's Avatar
wbferran
Thread Starter
Rennlist Member
 
Joined: Aug 2021
Posts: 148
Likes: 24
Default

Originally Posted by Pavegeno928
On my '19S, when not in Sport or Sport Plus modes (which automatically deactivates A/SS, I have set the mode switch on the steering wheel for the "Individual" setting to include A/SS off. When I roll to a stop, I flick the dial CCW once to defeat A/SS because I'm not a fan. I turn it back on once rolling. It's easier than pressing the button on the center console.

Why, because the PDK with A/SS on and in normal mode will "Sail" when going down hills or incline. You will see the RPMs drop to idle thus saving gas. It will perfectly re-engage when the speed barely drops.
i haven’t seen the sail feature yet. Perhaps since auto on/off doesn’t seem to work much, the sail feature also isn’t working? I’ll have to see if my 2017 has this “individual” setting.
Reply
Old Dec 30, 2021 | 04:21 PM
  #10  
Pavegeno928's Avatar
Pavegeno928
Rennlist Member
15 Year Member
 
Joined: Sep 2006
Posts: 2,122
Likes: 571
From: Alabama
Default

Originally Posted by wbferran
i haven’t seen the sail feature yet. Perhaps since auto on/off doesn’t seem to work much, the sail feature also isn’t working? I’ll have to see if my 2017 has this “individual” setting.
Even if the battery or other conditions aren’t met to turn the engine off at a stop light, the sail feature won’t be affected. All you need is to be in Normal mode with A/SS on (light on the button is off). Cruise control or ACC can be on or off. Once you go down a hill, the engine will sail until you put your foot back on the gas or if cruise control wants to keep you at selected speed. It’s pretty neat!

Last edited by Pavegeno928; Dec 30, 2021 at 04:24 PM.
Reply
Old Dec 30, 2021 | 05:06 PM
  #11  
TikiLou's Avatar
TikiLou
Burning Brakes
5 Year Member
 
Joined: Jul 2018
Posts: 840
Likes: 390
From: Chicagoland
Default

Originally Posted by Pavegeno928
Even if the battery or other conditions aren’t met to turn the engine off at a stop light, the sail feature won’t be affected. All you need is to be in Normal mode with A/SS on (light on the button is off). Cruise control or ACC can be on or off. Once you go down a hill, the engine will sail until you put your foot back on the gas or if cruise control wants to keep you at selected speed. It’s pretty neat!
Living in the Chicago area, I have to ask...what are these "hills" you speak of?

(wish I was kidding)
Reply
Old Jan 1, 2022 | 02:15 PM
  #12  
wbferran's Avatar
wbferran
Thread Starter
Rennlist Member
 
Joined: Aug 2021
Posts: 148
Likes: 24
Default

Originally Posted by Pavegeno928
Even if the battery or other conditions aren’t met to turn the engine off at a stop light, the sail feature won’t be affected. All you need is to be in Normal mode with A/SS on (light on the button is off). Cruise control or ACC can be on or off. Once you go down a hill, the engine will sail until you put your foot back on the gas or if cruise control wants to keep you at selected speed. It’s pretty neat!
so is it the same as if you shift the car into neutral going downhill? There is no speed control correct? You kinda get what you get? I have played with it a bit. How exactly do you know if it’s working? Thx
Reply
Old Jan 1, 2022 | 02:35 PM
  #13  
Pavegeno928's Avatar
Pavegeno928
Rennlist Member
15 Year Member
 
Joined: Sep 2006
Posts: 2,122
Likes: 571
From: Alabama
Default

Originally Posted by wbferran
so is it the same as if you shift the car into neutral going downhill? There is no speed control correct? You kinda get what you get? I have played with it a bit. How exactly do you know if it’s working? Thx
No. If you have cruise control set, if it gains speed, it will re-engage a gear to use transmission drag to slow down. If you start leveling off and the speed decreases, it automatically re-engages a gear and maintains speed. That's how you know it is working. Pretty nifty.

I have read on other fora that you can pull both paddle shifters back to switch to neutral, but that doesn't work on my '19 S PDK.
Reply
Old Jan 1, 2022 | 03:00 PM
  #14  
wbferran's Avatar
wbferran
Thread Starter
Rennlist Member
 
Joined: Aug 2021
Posts: 148
Likes: 24
Default

Originally Posted by Pavegeno928
No. If you have cruise control set, if it gains speed, it will re-engage a gear to use transmission drag to slow down. If you start leveling off and the speed decreases, it automatically re-engages a gear and maintains speed. That's how you know it is working. Pretty nifty.

I have read on other fora that you can pull both paddle shifters back to switch to neutral, but that doesn't work on my '19 S PDK.
thx. If that’s the case, I’m pretty sure my sail feature isn’t working
Reply
Old Jan 1, 2022 | 03:02 PM
  #15  
Pavegeno928's Avatar
Pavegeno928
Rennlist Member
15 Year Member
 
Joined: Sep 2006
Posts: 2,122
Likes: 571
From: Alabama
Default

Originally Posted by wbferran
thx. If that’s the case, I’m pretty sure my sail feature isn’t working
You have to be in Normal mode, not SPORT/SPORT PLUS and can't have A/SS manually turned off (red light on)
Reply

Thread Tools
Search this Thread

All times are GMT -3. The time now is 05:59 PM.

story-0
9 Vehicles Porsche Helped Engineer that Aren't Porsches

Slideshow: Long before engineering consulting became trendy, Porsche was quietly helping other automakers build everything from supercars to economy hatchbacks.

By Verdad Gallardo | 2026-05-15 12:44:44


VIEW MORE
story-1
9 Features and Characteristics That Only Porsche People Understand

Slideshow: Some brands build cars. Porsche builds traditions, obsessions, and a few habits that stopped making sense decades ago but somehow became part of the charm.

By Verdad Gallardo | 2026-05-13 18:46:13


VIEW MORE
story-2
I've Written 500 Rennlist Articles: Here's How Porsche Has Changed Along the Way

Slideshow: Six years and 500 Rennlist articles later, these are the biggest changes at Porsche.

By Joe Kucinski | 2026-05-11 09:52:55


VIEW MORE
story-3
10 Most Unnecessary Porsches Ever Built (And Why We Love Them)

Slideshow: Some Porsches exist for very specific reasons-others feel like they were built just to see if anyone would notice.

By Verdad Gallardo | 2026-05-06 18:00:32


VIEW MORE
story-4
Porsche 911 GT3 S/C vs 718 Spyder RS: 10 Categories, One Winner

Slideshow: Choosing between the 911 GT3 S/C and 718 Spyder RS in 10 key categories to determine one surprising winner.

By Joe Kucinski | 2026-05-05 12:51:46


VIEW MORE
story-5
This Builder Is Turning Heads With Its Slantnose 911 Creation

Slideshow: A small Polish tuner has reimagined the Porsche 911 Slantnose for the modern era, blending 1980s nostalgia with widebody tuning culture and serious performance upgrades.

By Verdad Gallardo | 2026-05-01 10:49:43


VIEW MORE
story-6
Porsche 911 GT3 Artisan Edition Pays Homage to Japanese Culture

Slideshow: Porsche has created a Japan-only 911 GT3 Artisan Edition that blends track-ready hardware with design cues inspired by traditional Japanese craftsmanship.

By Verdad Gallardo | 2026-04-28 19:37:40


VIEW MORE
story-7
Porsche Reveals Coupe Variant of the Electric Cayenne With a Fresh Look

Slideshow: Porsche's latest electric Cayenne Coupe blends dramatic styling with supercar acceleration, turning the brand's midsize SUV into a 1,139-horsepower flagship.

By Verdad Gallardo | 2026-04-27 19:39:30


VIEW MORE
story-8
10 Porsche Colors That Have More Personality Than Most People

Slideshow: Porsche's wildest paint colors aren't just shades-they're full-blown personalities on four wheels.

By Verdad Gallardo | 2026-04-27 19:38:13


VIEW MORE
story-9
Guntherwerks' Final Speedster Creation Is the Ultimate Porsche Restomod

Slideshow: The last of the Speedsters doesn't just close a chapter, it makes quite the bold, air-cooled statement.

By Verdad Gallardo | 2026-04-22 17:55:04


VIEW MORE