2016 Cayenne auto start/stop: ARRRRRRRGH!!!!
01-19-2018, 01:43 AM
#64
Pro
I think I'm going to take a crack at the memory module. Sounds great. That said, I found a different hack with one drawback. If you're towing a trailer stop/start is turned off. So, I believe that plugging in the trailer light module will defeat it. The downsides are: 1) having the plug there all the time, and 2) you lose LCA when I really don't want to lose.
01-15-2019, 11:39 PM
#66
I've been driving a 2018 Macan the past few days as a loaner and found by accident that the state of the auto stop/start button seems to be saved as part of the key-based memory settings on the driver's door.
For example, if I turn OFF the auto stop/start and then set the memory for the current key, it remains off the next time I return to the car and start it up. Then if I turn ON the auto stop/start (go back to the default) and set the memory again, it will be in the default state the next time I turn on the car. Anyone else notice this?
Will try this on my Cayenne when I get it back from the dealer.
For example, if I turn OFF the auto stop/start and then set the memory for the current key, it remains off the next time I return to the car and start it up. Then if I turn ON the auto stop/start (go back to the default) and set the memory again, it will be in the default state the next time I turn on the car. Anyone else notice this?
Will try this on my Cayenne when I get it back from the dealer.
01-16-2019, 12:30 AM
#67
Pro
Noticed the same thing with a loaner Macan and was quite frustrated. Our Cayenne .2s don't work that way unfortunately.
I bought a memory module and chickened out about half-way through and put things back together. even something simple like getting the shifter apart was really tough to do without breaking the plastic insert (which I did). Just a word of caution for folks. I may get brave enough to take another run at it later.
I bought a memory module and chickened out about half-way through and put things back together. even something simple like getting the shifter apart was really tough to do without breaking the plastic insert (which I did). Just a word of caution for folks. I may get brave enough to take another run at it later.
01-16-2019, 08:40 AM
#68
Rennlist Member
Noticed the same thing with a loaner Macan and was quite frustrated. Our Cayenne .2s don't work that way unfortunately.
I bought a memory module and chickened out about half-way through and put things back together. even something simple like getting the shifter apart was really tough to do without breaking the plastic insert (which I did). Just a word of caution for folks. I may get brave enough to take another run at it later.
I bought a memory module and chickened out about half-way through and put things back together. even something simple like getting the shifter apart was really tough to do without breaking the plastic insert (which I did). Just a word of caution for folks. I may get brave enough to take another run at it later.
The key to removing any of the parts that are held into place with clips or friction-fit connections is knowing where those points are, and the push/pull direction necessary.
01-16-2019, 10:14 AM
#69
Three Wheelin'
At 2 to 3 km/hr you cannot move the steering wheel enough to restart the engine. If I could muscle it my wife certainly cannot. This is just bad design, it should not shut down until a complete stop.
There is no driver error, the surging occurs before my foot ever gets to the gas pedal. I suspect the service manager is right, it's the AC coming on. Again, bad programming.
There is never any shut down at speeds above 4km/hr.
Of course putting it in sport will negate the Auto SS, but so will turning it off.
Love the vehicle, but expected better programming from Porsche. I have a 2013 C2S and a 1989 964, so I really appreciate their engineering, but they aren't perfect. They really should reprogram their Auto SS. But I don't expect they will.
There is no driver error, the surging occurs before my foot ever gets to the gas pedal. I suspect the service manager is right, it's the AC coming on. Again, bad programming.
There is never any shut down at speeds above 4km/hr.
Of course putting it in sport will negate the Auto SS, but so will turning it off.
Love the vehicle, but expected better programming from Porsche. I have a 2013 C2S and a 1989 964, so I really appreciate their engineering, but they aren't perfect. They really should reprogram their Auto SS. But I don't expect they will.
Yours must have something wrong with it, that sounds dangerous as all get out!
01-16-2019, 12:05 PM
#70
Rennlist Member
It was as of the 2017 model year onward that it defaults (in the US market) to automatically re-enabling the auto stop/start feature. Prior years that have the feature would save the setting to the key. Not for 2017+
01-16-2019, 12:13 PM
#71
Noticed the same thing with a loaner Macan and was quite frustrated. Our Cayenne .2s don't work that way unfortunately.
I bought a memory module and chickened out about half-way through and put things back together. even something simple like getting the shifter apart was really tough to do without breaking the plastic insert (which I did). Just a word of caution for folks. I may get brave enough to take another run at it later.
I bought a memory module and chickened out about half-way through and put things back together. even something simple like getting the shifter apart was really tough to do without breaking the plastic insert (which I did). Just a word of caution for folks. I may get brave enough to take another run at it later.
01-16-2019, 12:22 PM
#72
Rennlist Member
They're different vehicles and have different control systems. The 911 and Cayenne use one type of control bus (LIN) for this, the Macan apparently use something different. Thus it was apparently pretty easy to adapt the 911 module for use in a Cayenne, but not as simple for the Macan.
As to why the feature and key storage changed, that's likely a result of fuel efficiency requirements. Defaulting it to automatic makes it less likely drivers will disable it, and thus improve fuel consumption. That an '18 Macan still tracks it via key likely means someone didn't get the memo to cripple that for a US market vehicle.
As to why the feature and key storage changed, that's likely a result of fuel efficiency requirements. Defaulting it to automatic makes it less likely drivers will disable it, and thus improve fuel consumption. That an '18 Macan still tracks it via key likely means someone didn't get the memo to cripple that for a US market vehicle.
01-16-2019, 12:37 PM
#73
Racer
They totally changed the start/stop with the 958.2 which I think is 2016. I’ve had it reflashed to solve other issues but that has not changed the stop/start. I have checked out the Audi Q7 and it doesn’t behave this way. There are other engineering design issues such as starting the engine after start/stop but not programming it so the AC compressor can’t kick in at the same time and have the car lurch forward. Scary too, but that’s for another day.
01-16-2019, 03:44 PM
#74
They totally changed the start/stop with the 958.2 which I think is 2016. I’ve had it reflashed to solve other issues but that has not changed the stop/start. I have checked out the Audi Q7 and it doesn’t behave this way. There are other engineering design issues such as starting the engine after start/stop but not programming it so the AC compressor can’t kick in at the same time and have the car lurch forward. Scary too, but that’s for another day.
They changed it since 958.2 2015 model..super annoying feature which you have to turn off every time
