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Dennis C

PDK slipping

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I've begun to notice that my PDK appears to slip or hesitate sometimes, most notably when I accelerate from a standstill. The engine revs, but it takes a second to engage and get moving. Has anyone else experienced this?  Is there a TSB, or perhaps a software update for PDK that could help with this issue?  The car is a 2014 TTS. 

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I do not see a TSB for that.

The PDK just like many other sub-systems with controls has diagnostics and I would suggest getting someone with a PIWIS or at least Durametric look for any transmission fault codes. The report any faults back here.

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Thanks Loren. I've got a service appointment next week. I'll report back after the appointment. 

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My Turbo S was serviced last week at my local dealer for this issue. According to the dealer, there are no faults in my system.  There are no TSBs, as mentioned above. The behavior my car exhibits is normal. The dealer said that this is not an uncommon concern. PDK is technically an automated manual transmission, as opposed to an automatic transmission with a torque converter. As a result, there will always be a little bit of slip as the clutches engage from a dead stop. He did say that the transmission learns and adapts to the driving style of the driver, so maybe I've babied the car a little too much. I may try starting quickly for a few weeks and see if anything changes.

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Yes Dennis, my car will do the same thing unless you put it in launch control. There is always a slight hesitation from a dead stop. Unfortunately the car is geared so tall that driving it like a 911 should be driven will put you in jail. But, never leave the car in default mode. As soon as you start up put in sport mode or drive it manually. The default mode is silliness to keep the mileage numbers down and runs the engine way below where it is happy. 

What I have learned with my TT S is that there is such a thing as a car being too powerful. In many ways my 2006 manual C4S is more fun to drive. I am considering going for a 992 GTS if it comes with a manual. 

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As it is simply an electronically clutched manual transmission, although already slipping they do take a moment to finish engaging. You can run the transmission relearn function and it will remeasure and calibrate the clutch plates. I’m using the Cobb Tuner and am running PDK maps that disables creep so the trans doesn’t engage at all until you touch the gas. It will roll with brake off but I’ll take that over the clutch always slipping (wearing) when at a stop.

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