Gio

JFP - thanks for the feedback. My worries look to be valid then. The Porsche was able to re-create the problem on my car. They found the gearbox fluid low and so they replenished it. Also, they upgraded the software for the PDK. Now they are telling me that they test drove it 4 separate times in one day and checked the fluids onces it cooled. Everything is back to normal. They are just waiting to compare their computer diagnostics with a Porsche location in Atlanta to to see if replacing the PDK is warranted or if they will return the car back to me. I informed Porsche that my own research online found similar separate incidents with the dealership performing their due diligence with the diagnostics and software upgrades only to eventually default to replacing the PDK unit. They acknowledged the statement and that was that. Hopefully I will get my car back in the morning. However, it looks like I will continue to be a guinea pig moving forward. By the way they did suggest I get an extended warranty to alleviate my concern about future issues with the PDK. I guess it is much cheaper than the alternative.

I have a 2009 Cayman S with the PDK unit. The car has 9k miles on it and is garaged kept. I use this car on the weekends to go from house to restaurant or no more that 15 miles one way. I have a second car I use for work, etc. I "baby" this car and have not gone past 75 mph for anything. Launched it once with the sales guy when the time came for a Demo on the Launch Control feature. Sunday afternoon I took it out for a short ride. Only a few blocks from the house the car began to experience problems. The RPMs would go up and up with the car not going above 20 mph. I watched the gears shifting up through to the 4th gear. The RPMs would not go down at all even when it would shift up in gears unless I let off on the accelerator. Finally, I would let up on the accelerator and the car would stay in 4th gear as it slowed down (without me applying the brakes). I would then attempt to accelerate with only the RPMs going up and without the car picking up any new momentum forward. Eventually the PDK would kick in and shift into gear and lurch forward. This happened multiple times while I tried to get the vehicle back home into the garage. I tried to shift the car back into park and see if this fixed the problem. It did not. The "Check Engine at workshop" light came on throughout all of this. I brought the vehicle to the dealership and they are having discussions with Porsche about a fix. They are talking about possibly reloading software or upgrading it. However, indications on the technician findings are leaning toward replacing the entire PDK unit. They are having further discussions today with Porsche whether or not to go ahead and replace the PDK unit altogether. I have found a few items out on discussion boards on this very subject with the PDK unit. Most of these cars are from 2009 or 2010. The fix is to replace the unit and ship the old to Porsche for forensic analysis. However, I am concerned about the future. Although Porsche is willing to provide a fix to address my problem by replacing the PDK with a new one, I feel it is a temporary band-aid. What guarantees do I have the new unit will not experience the same problem and worse it occurs after my warranty is expired. This to me is unacceptable and reason for concern. Has anyone experienced this issue and how many more of us out there are having similar problems? What is Porsche going to do to stop this similar and on-going issues with their PDKs? Frankly, nothing short of a re-design or revised version of the old PDK is good enough in my opinion. Your thoughts and input, please?