In sport mode, just before coming to a stop the car abrupty stops or is jerky most of the time instead of the smooth stop in normal mode. The sport plus is even worse but I do not intend to use it in city driving. Is it the nature of the beast? Interesting if I have the sport mode in manual it does not stop abruptly.

 

Yep this is the way it is....try this....do not drag the brake like it a normal slow street style of stop....wait and brake later, harder all the way to a stop and you will not notice this jerky into 1st gear when in sport or sport plus mode.

For slow suburbian street driving just use normal mode

 

Nice, threshold braking on the street!

 

Yes, its a feature.

Apparently to encourage manual shifting.

 

Yep Mdrums is right . I just prefer to either drive it in manual or normal auto.

 

Unfortunately, that is completely normal -- although I still wish Porsche would fix it. As mentioned, you can play trial and error with the brakes or switch to manual mode. Maybe we should file a petition...

 

+1
I mean who downshifts into 1st

 

Bingo -- I think the downshift to first with the brakes applied is ridiculous . Why not place "neutral" in its place until the brake is released to go to 1st ?

 

Ahh, not quite threashold...sporty braking....If you know threshold, really know threshold on this car and I'm sure you do...I'd say about 45% braking smooths out the jerk to 1st gear. Also manual shifting the PDK smoths this to 1st jerk out.

 

OK 45% on this car is threshold on almost all other cars

 

My PDK has the same behavior. I took it back to my dealership and test drove another PDK with a salesman and it did the same jolt with the same force described here. As a consequence I sent my salesman an email and he is forwarding to the technical contact of PNA. For those of us seeing this issue maybe you can send emails as well to PNA?

 

If you brake slowly to a stop in Sport/Sport Plus it will downshift and eventually engage 1st and yes you'll feel a jolt. However if you brake with more energy it won't jolt. Slowly, it engages a 1st to a stop when a 2nd would still do. It has to do with stall decisions and such. No big deal. In the conditions when that occurs, slow stopping traffic, one should be in Normal anyway, never Sport Plus.

 

Too hard for me to find the right balance. Almost not worth it from my experience so far. Mine seems to always jerk unless immediately following some very aggressive driving or unless I really slam on the brakes (the two may be related). That kind of defeats the purpose anyway -- jerk from transmission vs. jerk from slamming the brakes. Either way I'm snapping my neck or the passenger's.

My beef is that it shouldn't be happening in Sport auto mode. It seems to me there is a use case when you are driving in a more spirited fashion but come upon a single stop light. You don't want to switch to manual mode, slam the brakes, or hop over to Normal mode just for the single light. Coming to a comfortable stop (exactly what happens in manual mode) should not require training.

 

Ok...this is just getting ridiculous....

I read on these forums a bunch of contradictory posts where people say they want a pure and fast sports car and how with the older cars they felt more part of the car feeling every raw part of the car and road...then in the next post they complain about scraping the front underside, rough ride, tire noise, smells, child seats, rear seats and a slight iddy bitty jerk when PDK is in auto sport/sport plus mode in stop and go traffic that causes them to jerk their wifey poo's neck and spill their grande mocha latte frapachino on the macadamia nut Crusted wood interior trim......GEEESH!

 

You mean we can't have everything?