Notices
Panamera The 4-dour coupe by Porsche

Auto start stop not always working?

 
  #1  
Old 11-01-2013, 07:23 PM
Registered User
Thread Starter
Join Date: Sep 2013
Posts: 111
Rep Power: 10
timelinex will become famous soon enough
Auto start stop not always working?

This is driving me crazy. I can almost never get the auto start/stop to work for me.

I know that the button needs to be pressed (light off), the electrical load needs to be low and the car needs to be warmed up.

Even when the car is warmed up (213 degrees oil temperate is what mine seems to baseline), all the electronics turned off (sound, AC, headlights etc..), I still get the A with a cross through it symbol that specifies that the auto stop will not happen at this stop.

A couple days ago when I tried it however, it all worked. This was with headlights and a weak amount of AC on! When I brought it into the dealer, obviously it all worked.

I really won't be using this feature, but my factory warranty runs out in a couple months so I want to make sure everything is in working order!
 
  #2  
Old 11-01-2013, 10:05 PM
MIA997TTBeast's Avatar
Registered User
Join Date: May 2010
Location: Miami
Posts: 513
Rep Power: 31
MIA997TTBeast will become famous soon enoughMIA997TTBeast will become famous soon enough
It depends in a few factors, believe it or not the seatbelt has to be locked, outside temp (has to be cool) and a few others that escape me, have to align for the feature to work.
 
  #3  
Old 11-02-2013, 11:14 AM
Registered User
Thread Starter
Join Date: Sep 2013
Posts: 111
Rep Power: 10
timelinex will become famous soon enough
Originally Posted by MIA997TTBeast View Post
It depends in a few factors, believe it or not the seatbelt has to be locked, outside temp (has to be cool) and a few others that escape me, have to align for the feature to work.
The "outside temp has to be cool" catches my eye. I'm in Phoenix, AZ so its MOSTLY been 70+ here. It could be possible that the times it worked it was lower though.

I know I have tested it when its like 72 outside. Could this be the reason??
 
  #4  
Old 11-02-2013, 05:07 PM
mto's Avatar
mto
mto is offline
Registered User
Join Date: Sep 2008
Location: Left Coast
Posts: 747
Rep Power: 41
mto will become famous soon enoughmto will become famous soon enough
Happens to me with my Cayenne. Sometimes when I get a non branded gasoline, it does not work. Haven't spoken to dealer about it, yet. Very odd.

Do know when battery is not fully charged, it does not shut off either, which is normal.

Don't think is temperature related.
 
  #5  
Old 11-02-2013, 05:18 PM
Registered User
Thread Starter
Join Date: Sep 2013
Posts: 111
Rep Power: 10
timelinex will become famous soon enough
Well today at the beginning of my drive it worked and it was 80 degrees outside, so its not temperature. Interestingly, later it did not work again!

Whats the battery supposed to be at? When I look at the battery voltage through the dash screen, I think it was at 14.4V.

As for gasoline, I fill up with nothing buy 91 at shell.
 
  #6  
Old 11-02-2013, 08:44 PM
MIA997TTBeast's Avatar
Registered User
Join Date: May 2010
Location: Miami
Posts: 513
Rep Power: 31
MIA997TTBeast will become famous soon enoughMIA997TTBeast will become famous soon enough
Off of the Owners Manual, I hope this helps.

Auto Start Stop Function:

The engine stops automatically when the vehicle is
stopped, e.g. at traffic lights or in a traffic jam.
The Auto Start Stop function thus helps to
save fuel.
The ignition stays on even when the engine
switches off automatically. All safety functions
are still available.
Stopping the engine
The Auto Start Stop function stops the engine
as soon as the vehicle stops moving.
1. Use the footbrake to hold the vehicle in place.
2. Keep the footbrake pressed.
or
Move PDK selector lever to position P.
Preconditions for stopping the engine
– Engine compartment lid closed.
– Driver detected: driver’s seat belt fastened and
driver’s door closed.
– PDK selector lever in position D, N or P or
transmission range 1 or 2 selected manually.
– Engine, transmission and battery are at
operating temperature.
– Vehicle was driven at a speed of more than
approx. 1 mph (2 km/h) for at least
1.5 seconds since the engine last stopped
automatically.
Starting the engine
The Auto Start Stop function starts the engine:
f In PDK selector-lever position D, N or manually
selected transmission range 1 or 2:
Release the footbrake.
or
Press the accelerator.
or
f Move PDK selector lever to position R.
You can drive off normally.
Note
The engine will start automatically in certain
situations, e.g. if the vehicle starts rolling, if air
conditioning causes reduced comfort, or if the
brake booster vacuum is reduced.
Starting the engine manually after leaving
the vehicle
If the driver’s seat belt is unbuckled or the driver’s
door is opened after the engine was stopped
automatically, the engine will not start
automatically.
Furthermore, if the brake is released, the engine
has to be started manually.
The message “Please start engine manually”
will appear on the multi-function display in the
instrument panel.
f Please see the chapter “OVERVIEW OF
WARNING MESSAGES” on page 152.
Exceptions for the Auto Start Stop
function
The Auto Start Stop function is not available in the
following situations, for example:
– When Sport mode is activated.
– When PSM is off.
– In Maneuvering mode.
– When AC MAX mode is activated.
– When the “Windshield defrost” function is
active.
– While adjusting the chassis level.
– When the rear fog light is on.
The Auto Start Stop function is available with
limited functionality in the following situations,
for example:
– If the air conditioning or passenger
compartment heating is operated at a high
setting or if the defrost function is run for long
time periods.
– If the battery charging condition is low.
– On upward or downward slopes.
– During internal vehicle test procedures,
e.g. automatic engine checks.
Note
If one of these situations arises after the engine
has stopped automatically, the engine can be
restarted automatically.
 

Last edited by MIA997TTBeast; 11-02-2013 at 08:50 PM.
  #7  
Old 11-03-2013, 01:29 PM
Registered User
Thread Starter
Join Date: Sep 2013
Posts: 111
Rep Power: 10
timelinex will become famous soon enough
I've read that before, however it seems like none of those conditions apply and its still not working! Oh well I suppose.
 
  #8  
Old 11-03-2013, 03:23 PM
MIA997TTBeast's Avatar
Registered User
Join Date: May 2010
Location: Miami
Posts: 513
Rep Power: 31
MIA997TTBeast will become famous soon enoughMIA997TTBeast will become famous soon enough
Originally Posted by timelinex View Post
I've read that before, however it seems like none of those conditions apply and its still not working! Oh well I suppose.

I remember that the only way it would work for me, was when it was cool outside or I had the AC off, I will give it a try again and report back.
 
  #9  
Old 11-03-2013, 03:50 PM
mto's Avatar
mto
mto is offline
Registered User
Join Date: Sep 2008
Location: Left Coast
Posts: 747
Rep Power: 41
mto will become famous soon enoughmto will become famous soon enough
Originally Posted by timelinex View Post
I've read that before, however it seems like none of those conditions apply and its still not working! Oh well I suppose.
If you doing short driving, it will not work as battery is not fully charge.
 
  #10  
Old 11-03-2013, 07:20 PM
Registered User
Thread Starter
Join Date: Sep 2013
Posts: 111
Rep Power: 10
timelinex will become famous soon enough
Originally Posted by mto View Post
If you doing short driving, it will not work as battery is not fully charge.
Ooo ok, so this might be it. Most my drives are relatively short (less than 20 minutes). What charge on the battery would I be looking for to know its fully charged? Like I said, last time I looked when it wasnt working, I think it was 14.4V
 
  #11  
Old 11-03-2013, 09:11 PM
Registered User
Join Date: Oct 2013
Location: Las Vegas
Posts: 21
Rep Power: 0
zackster is on a distinguished road
When i bought mine I was worried as well, it happens to me all the time, I did ask the dealer, they said if there is no light on in the dash indicating something is wrong then it is working. It is always temperamental as the on-board computer is computing for all the ideal condition for it to work. Sometime it works great sometimes it goes missing for days. So when it works I'm just happy, when it doesn't ...oh well!!! Doesn't mean it is faulty or not working. These are sophisticated machines with complex computers on board.
 
  #12  
Old 11-09-2013, 04:08 PM
Registered User
Thread Starter
Join Date: Sep 2013
Posts: 111
Rep Power: 10
timelinex will become famous soon enough
Well I finally proved to the dealership that something was wrong. I took them for a test drive and showed them that all the qualifications were met and it still wasn't working. So this time they actually did some testing and digging and saw that every time it wouldn't turn on because of low voltage. Even though the battery voltage in the car showed as good. They charged the battery and it was good to go. They said because the last owner rarely drove the car, the battery must have drained a bit and that these cars do a bad job or recharging.

So if yours isn't working, don't take no for an answer, make them check the codes of why! There is absolutely no "mystery" to it. After they fixed it, if I'm buckled in and the car has been on a COUPLE minutes it works. Even with the AC on, headlights on, music on etc.. It just works EVERY time I stop.
 
  #13  
Old 11-09-2013, 04:29 PM
mto's Avatar
mto
mto is offline
Registered User
Join Date: Sep 2008
Location: Left Coast
Posts: 747
Rep Power: 41
mto will become famous soon enoughmto will become famous soon enough
Thanks for update. I thought it was the battery not being fully charged as it was same for mine.
 
  #14  
Old 11-09-2013, 08:15 PM
Registered User
Join Date: Oct 2013
Location: Las Vegas
Posts: 21
Rep Power: 0
zackster is on a distinguished road
Originally Posted by timelinex View Post
Well I finally proved to the dealership that something was wrong. I took them for a test drive and showed them that all the qualifications were met and it still wasn't working. So this time they actually did some testing and digging and saw that every time it wouldn't turn on because of low voltage. Even though the battery voltage in the car showed as good. They charged the battery and it was good to go. They said because the last owner rarely drove the car, the battery must have drained a bit and that these cars do a bad job or recharging.

So if yours isn't working, don't take no for an answer, make them check the codes of why! There is absolutely no "mystery" to it. After they fixed it, if I'm buckled in and the car has been on a COUPLE minutes it works. Even with the AC on, headlights on, music on etc.. It just works EVERY time I stop.
Thanks for the update, I'm going to have mine checked as well!!!!
 
  #15  
Old 11-10-2013, 05:55 PM
Registered User
Thread Starter
Join Date: Sep 2013
Posts: 111
Rep Power: 10
timelinex will become famous soon enough
Well it stopped working again... Now it looks like my running volts is around 14.2 instead of the 14.4 that I would see earlier.

I hope they don't try to blame this on the battery, which is warrantied. the battery hasn't shown to give any problem like with starting the car.

Seems like its the alternator isn't doing its job of charging the car while driving. I drive it everyday and not just for short trips, so it gets plenty of time.
 

Thread Tools
Search this Thread
Rate This Thread
Rate This Thread:
You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: Auto start stop not always working?


Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.