Transfer case
#466
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Guys, can this be a transfer case?
I just recently piked up a post-fix 2015 CD with 16K miles for 47K (MSRP 77K). After driving it for awhile I noted quite jerky shifting pattern under moderate or fast acceleration between 1-2 and 2-3 gears. The rest of gears shift flawlessly. It doesn't matter if the car is cold or fully warmed up. I scheduled an appointment with a Porsche dealer, but before you I go there I wanted to check with you if that's an unusual behavior. We also have 2015 X5 35D with ZF transmission and it shift flawlessly under any circumstances. I expected the same for CD and wasn't even thinking something can be wrong on a 16K mile car.
I just recently piked up a post-fix 2015 CD with 16K miles for 47K (MSRP 77K). After driving it for awhile I noted quite jerky shifting pattern under moderate or fast acceleration between 1-2 and 2-3 gears. The rest of gears shift flawlessly. It doesn't matter if the car is cold or fully warmed up. I scheduled an appointment with a Porsche dealer, but before you I go there I wanted to check with you if that's an unusual behavior. We also have 2015 X5 35D with ZF transmission and it shift flawlessly under any circumstances. I expected the same for CD and wasn't even thinking something can be wrong on a 16K mile car.
#467
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Guys, can this be a transfer case?
I just recently piked up a post-fix 2015 CD with 16K miles for 47K (MSRP 77K). After driving it for awhile I noted quite jerky shifting pattern under moderate or fast acceleration between 1-2 and 2-3 gears. The rest of gears shift flawlessly. It doesn't matter if the car is cold or fully warmed up. I scheduled an appointment with a Porsche dealer, but before you I go there I wanted to check with you if that's an unusual behavior. We also have 2015 X5 35D with ZF transmission and it shift flawlessly under any circumstances. I expected the same for CD and wasn't even thinking something can be wrong on a 16K mile car.
I just recently piked up a post-fix 2015 CD with 16K miles for 47K (MSRP 77K). After driving it for awhile I noted quite jerky shifting pattern under moderate or fast acceleration between 1-2 and 2-3 gears. The rest of gears shift flawlessly. It doesn't matter if the car is cold or fully warmed up. I scheduled an appointment with a Porsche dealer, but before you I go there I wanted to check with you if that's an unusual behavior. We also have 2015 X5 35D with ZF transmission and it shift flawlessly under any circumstances. I expected the same for CD and wasn't even thinking something can be wrong on a 16K mile car.
#468
Racer
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https://rennlist.com/forums/cayenne-...l#post15039192
https://www.6speedonline.com/forums/...ml#post4709163
#469
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No. There have been confirmed CD transfer case failures before - even reported in this thread:
https://rennlist.com/forums/cayenne-...l#post15039192
https://www.6speedonline.com/forums/...ml#post4709163
https://rennlist.com/forums/cayenne-...l#post15039192
https://www.6speedonline.com/forums/...ml#post4709163
#472
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![](https://cimg9.ibsrv.net/gimg/rennlist.com-vbulletin/2000x1042/20180621_061242_865fa75d44d0f3cbb934c88da2737ceb5307024c.jpg)
Here is a copy of my 2014 CD invoice, the part installed now is 958-341-020-CX. I looked up the part and it replaces 958-341-020-AX and 958-341-020-BX. Nothing about a vent kit.
#474
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Just got an email from Andrew at AWD.tech
More transfer case parts has arrived and will be available for shipping soon.
We have also discussed what kind of programming of the control unit is needed after the rebuild.(as discussed above)
Here is his reply:
So the way I understand this is that we only need to have the Transfer Case control unit reset. I presume this is the same as has been earlier discussed to start a new learning process if it has been behaving bad ![Smilie](https://rennlist.com/forums/images/smilies/smile.gif)
I guess this is one of the features of the IcarScan?!
More transfer case parts has arrived and will be available for shipping soon.
We have also discussed what kind of programming of the control unit is needed after the rebuild.(as discussed above)
Here is his reply:
It's just reset procedure. The ECU should measure all values by itself, but it's able to do this correct only after its memory will be cleared due firmware update.
![Smilie](https://rennlist.com/forums/images/smilies/smile.gif)
I guess this is one of the features of the IcarScan?!
#475
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I have a 2016 Cayenne S with 40,000 miles. I started feeling what I can only describe as little 'clicks' or bumps in the pedal in 2nd gear around 1-2k RPM, every single time from a stop. I called the dealer and she immediately said "sounds like the transfer case" and she put me in for service.
Then I did a search and thanks to rennlist found this thread. They were very up front when I scheduled service, she literally said based on my description she was going to order the part and then let me know later today when it will be there so I dont have the car in their shop for too long. I will continue reading this thread to make sure I ask them to check any other issues you guys have brought up.
Thanks
Then I did a search and thanks to rennlist found this thread. They were very up front when I scheduled service, she literally said based on my description she was going to order the part and then let me know later today when it will be there so I dont have the car in their shop for too long. I will continue reading this thread to make sure I ask them to check any other issues you guys have brought up.
Thanks
#476
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Just got an email from Andrew at AWD.tech
More transfer case parts has arrived and will be available for shipping soon.
We have also discussed what kind of programming of the control unit is needed after the rebuild.(as discussed above)
Here is his reply:
So the way I understand this is that we only need to have the Transfer Case control unit reset. I presume this is the same as has been earlier discussed to start a new learning process if it has been behaving bad![Smilie](https://rennlist.com/forums/images/smilies/smile.gif)
I guess this is one of the features of the IcarScan?!
More transfer case parts has arrived and will be available for shipping soon.
We have also discussed what kind of programming of the control unit is needed after the rebuild.(as discussed above)
Here is his reply:
So the way I understand this is that we only need to have the Transfer Case control unit reset. I presume this is the same as has been earlier discussed to start a new learning process if it has been behaving bad
![Smilie](https://rennlist.com/forums/images/smilies/smile.gif)
I guess this is one of the features of the IcarScan?!
#477
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I haven't tried to reset it since I'm not switching my transfer case - and who knows what gremlins might be woken up if I did. I'm surprised the battery did anything at all - all modern vehicles from the past 10-15 years have used NVRAM to hold the learned settings. Disconnecting the battery should have no effect on it.. but who knows?...
#478
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I haven't tried to reset it since I'm not switching my transfer case - and who knows what gremlins might be woken up if I did. I'm surprised the battery did anything at all - all modern vehicles from the past 10-15 years have used NVRAM to hold the learned settings. Disconnecting the battery should have no effect on it.. but who knows?...
#479
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I haven't tried to reset it since I'm not switching my transfer case - and who knows what gremlins might be woken up if I did.
The local Porsche dealership will remove the Transfer case for me at the same time they do a "European AH-08". I will rebuild it while its up on the lift. I got a 2 day window.
I asked about the reset when reinstalling the TC and he said its a simple reset from the DME. He said, every time oil is changed, a reset should be done. The car will then recalibrate itself for the "new" TC.
So obviously it doesnt matter of it is new friction plates or oil in the TC. You have to give it a hint to re-learn.
Maybe we should add this to our TC flushing procedure!?
#480
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The local Porsche dealership will remove the Transfer case for me at the same time they do a "European AH-08". I will rebuild it while its up on the lift. I got a 2 day window.
I asked about the reset when reinstalling the TC and he said its a simple reset from the DME. He said, every time oil is changed, a reset should be done. The car will then recalibrate itself for the "new" TC.
So obviously it doesnt matter of it is new friction plates or oil in the TC. You have to give it a hint to re-learn.
Maybe we should add this to our TC flushing procedure!?
I asked about the reset when reinstalling the TC and he said its a simple reset from the DME. He said, every time oil is changed, a reset should be done. The car will then recalibrate itself for the "new" TC.
So obviously it doesnt matter of it is new friction plates or oil in the TC. You have to give it a hint to re-learn.
Maybe we should add this to our TC flushing procedure!?