I would like to hear from others what you think is the smarter choice for the auto start/stop button's use. More specifically, is it smarter to turn it off so that it doesn't stop & start so much, which could avoid an early starter replacement, or leave it on so that the PDK transmission can be allowed to disengage and coast, saving wear and tear on the even more expensive PDK?

 

I have no idea how it works as I always drive the car in sport plus manual mode.

 

Smart or not, I turn the stop/start OFF.

I have a manual tranny so if I want to coast I push in the clutch and/or put it in neutral.

 

Here in SC I've tried using it occasionally. It seems to work well with the exception of coping with the heat. It restarts the car quite often to keep the temp livable (routinely 90+ degree weather) when the car otherwise would be engine off. I too have been concerned with the stress on the battery, more so than PDK longevity.

 

I always do as well, not sure why you'd buy a 911 and drive it in normal mode enough to worry about these things.

 

You don't have to race the car or drive it hard to use sport plus, its about the feel for the road, throttle response along with the exhaust note change.

 

Exactly. I keep it in sport or sport+ even in stop and go traffic. I do that in every car I have, even my Raptor. Normal mode in today's cars is intentionally crippled to meet emissions regulations, and there's no way the manufacturers would ship the car from the factory with those settings as standard if they had a choice.

 

This!
Little Gator, Its interesting. There are Porsche owners and then there are, well "faddists". They are only interested in the car as if it were faddish clothing with a designer label, only to be discarded when the latest new thing arrives (or it gets a little soiled). They only differ from the millennial types who see cars as a transportation box with the added feature of being hip/fashionable at 70 mph. Rennlist and 6Speed is rife with the type. They talk about taking care of/servicing their cars but truth be told they've never taken care of anything in their hollow little lives. Some will be insulted and say "I don't have to take care of it or be that kind of an enthusiast to enjoy this marque" And, its true, but even the extremely wealthy more often than not see the value in being good stewards of their possessions.

 

the wifes Bimmer has the stop start as a default. no ill effect after 5 yrs on starter. my info is that they were designed for hundreds of thousands miles of life. as far as the Porsche goes I only use it on long trips. to each his own. i hope this responce doesn’t elicit any nasty responces.