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-   Cayenne 955-957 2003-2010 (https://rennlist.com/forums/cayenne-955-957-2003-2010-77/)
-   -   Slow transmision response? (https://rennlist.com/forums/cayenne-955-957-2003-2010/678030-slow-transmision-response.html)

Mike in CA 01-31-2012 02:20 PM

Slow transmision response?
 
Here's the scenario: my '11 CS is in sport mode and I go full throttle to get around another car, accelerate out of a turn, just enjoy the rush, whatever. I've now gone though a gear or two and I let up on the accelerator. Instead of immediately backing off into a higher gear and letting the revs drop, the sport algorithm decides that it still wants to be in an aggressive mode keeping me in the lower gear and the revs high. Sometimes it can take 2 or 3 seconds for the transmission to decide to "relax" and upshift and it holds on to the lower gear long enough that I feel the need to upshift manually. To me this response seems slower than it should be and makes me wonder if a software upgrade or other adjustment is required. Has anyone else experienced this?

Tex94 01-31-2012 02:28 PM

+1, same experience on my V6. I frequently manually shift it up to the next gear to compensate.

dochusar 01-31-2012 02:52 PM

Same experience in the base 6. Guess it is the new 8 speed tranny.

GTS Jay 01-31-2012 05:01 PM

My 08 GTS behaves the same way as well so I don't think it's a 958 thing...

jumper5836 01-31-2012 05:07 PM

That why we need manual. Auto transmissions will never be able to predict what you want to do.

Mike in CA 01-31-2012 05:32 PM


Originally Posted by GTS Jay (Post 9235199)
My 08 GTS behaves the same way as well so I don't think it's a 958 thing...

That's some consolation, I guess.... ;)



Originally Posted by jumper5836 (Post 9235220)
That why we need manual. Auto transmissions will never be able to predict what you want to do.

Won't argue that point in general, but will say that the PDK in my Carrera is much quicker to respond than the Tip in the Cayenne. It's also invariably in the right gear for a given situation. The fact that PDK is so good may be part of the reason why the few shortcomings of the Tip are so obvious and annoying to me.

EnigmaWmn 01-31-2012 05:53 PM

Yup, 955 did it as well, and so does this one. I'm just consoling you some more, Mike :D

Mike in CA 01-31-2012 07:22 PM


Originally Posted by EnigmaWmn (Post 9235378)
Yup, 955 did it as well, and so does this one. I'm just consoling you some more, Mike :D

'pree-cee-ate-it, Pops......:)

Norsk 01-31-2012 07:28 PM

Mine behaves the same way, but I don't understand why a downshift using the steering wheel controls will only hold for a bit before an automatic upshift, but a downshift using the gearshift (console) will hold forever...

One would assume they would function alike. Perplexing p!g.

Mike in CA 01-31-2012 07:35 PM


Originally Posted by Norsk (Post 9235633)
Mine behaves the same way, but I don't understand why a downshift using the steering wheel controls will only hold for a bit before an automatic upshift, but a downshift using the gearshift (console) will hold forever...

One would assume they would function alike. Perplexing p!g.

Never noticed that, be right back I'll have to go try it......

Edit 5 minutes later: Answer occured to me as I settled into the driver's seat. The steering paddles execute a temporary override while the main console gearshift is still in D, so after a few seconds the tranny reverts to Drive mode. But in order to downshift with the console lever you have to actually flick it left into Manual position which is why it won't upshift again on it's own.

mcbit 01-31-2012 10:42 PM


Originally Posted by Norsk (Post 9235633)
Mine behaves the same way, but I don't understand why a downshift using the steering wheel controls will only hold for a bit before an automatic upshift, but a downshift using the gearshift (console) will hold forever...

One would assume they would function alike. Perplexing p!g.

With gear shift in automatic a manual shift on the tip is valid for 7 seconds before reverting to auto mode. A shift on the gear shift lever means you are in manual mode where it will remain until you shift it back into auto.

GTS Jay 02-01-2012 11:27 AM

Yes - this is actually "the feature" that is in question here. Given the way our P!Gs shift on their own this feature is actually our only saving grace as it allows a quick, temporary down/up shift when you want it...

w00tPORSCHE 02-02-2012 10:18 PM

Never noticed this Mike. Perhaps a little calibration needed for the software. Will test it out when I drive mine this weekend and see if I can duplicate this on mine.

w00tPORSCHE 02-06-2012 11:54 PM

Your transmission issue is not unique to you. Add me to that list too. Exact response felt by me during an extended spirited drive at various speeds.

Mike in CA 02-07-2012 12:34 PM


Originally Posted by w00tPORSCHE (Post 9253567)
Your transmission issue is not unique to you. Add me to that list too. Exact response felt by me during an extended spirited drive at various speeds.

Thanks, Amar!


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