PDK slipping on redline shifts
03-27-2017, 08:19 AM
#1
7th Gear
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PDK slipping on redline shifts
Has anyone seen/heard of any issues with the PDK trans in Panamera Turbo vehicles?
My car is a 2010 with a GIAC tune, dyno
.
The issue occurs from a stand-still where the clutches seem to slip for a while before the car starts to actually move. This is annoying, but somewhat manageable.
The bigger issue happens during redline, full-throttle shifts. For example, floored out in 2nd gear (sport plus mode) around 6000-6100rpm the car stops pulling until the shift to 3rd around 6600, and then the acceleration comes on hard again. The total time from the drop of acceleration at 6100 until your back hits the seat again is about a half second or better.
It feels like the clutches are letting go at 6100, making the shift feel horribly slow/sluggish.
Any idea if this could simply be a worn clutch pack? Does anyone know the progression of the 7-speed PDK as the Panamera got older?
My car is a 2010 with a GIAC tune, dyno
The issue occurs from a stand-still where the clutches seem to slip for a while before the car starts to actually move. This is annoying, but somewhat manageable.
The bigger issue happens during redline, full-throttle shifts. For example, floored out in 2nd gear (sport plus mode) around 6000-6100rpm the car stops pulling until the shift to 3rd around 6600, and then the acceleration comes on hard again. The total time from the drop of acceleration at 6100 until your back hits the seat again is about a half second or better.
It feels like the clutches are letting go at 6100, making the shift feel horribly slow/sluggish.
Any idea if this could simply be a worn clutch pack? Does anyone know the progression of the 7-speed PDK as the Panamera got older?
03-27-2017, 08:37 AM
#2
I don't know the specifics but I know the PDK got better in later years. Same with overall reliability. Subscribe to hear the facts though.
05-09-2020, 02:08 PM
#4
Rennlist Member
FVD Brombacher has a PDK ECU tune that prevents this. For them, it showed up when they added a lot of power and torque to test vehicles. So, they engineered upgraded settings for the PDK computer. Getting it requires you to send the PDK computer unit to FVD for the programming upgrade. About $1500 if I recall correcrly.
05-27-2020, 04:05 PM
#5
Fairly well known problem with PDKs that have high torque motors -- most common on tuned turbo cars. Cobb has a 'high torque' tune for the PDK to address this specific issue. Based on Scott's comment, looks like FVD has something similar, likewise http://htg-tuning.com has a full blown TCU that works with PDK.
DJM
DJM