Whilst gently accelerating the revs are surging up and down by about 100rpm. It's most notable between 1.5K-2K rpm and in higher gears. It's like the clutch keeps slipping every second or it's thinking about disengaging to shift gear but then decides not to. I've also noticed the behaviour gently accelerating out of a bend or off a roundabout, feels like the back end is squirming in time with the rev fluctuations. It's a 2010 997TTS and still under warrantee thankfully. Here are a couple of videos showing the behaviour:
https://www.youtube.com/watch?v=nhoXhb1LHNI
https://www.youtube.com/watch?v=qCJMUYApG5c
Is this just normal behaviour for the PDK or something I should get the dealer to sort out? When I took it in to show them the tech agreed it was odd behaviour, but now I've left it with them they are saying they tried another identical car and it does the same thing so must be normal. (Or that car has the same issue!) I didn't notice the behaviour before it went in to them to have the temp sensor replaced a few weeks ago but hadn't used the car that much at that point so could have missed it.
https://www.youtube.com/watch?v=nhoXhb1LHNI
https://www.youtube.com/watch?v=qCJMUYApG5c
Is this just normal behaviour for the PDK or something I should get the dealer to sort out? When I took it in to show them the tech agreed it was odd behaviour, but now I've left it with them they are saying they tried another identical car and it does the same thing so must be normal. (Or that car has the same issue!) I didn't notice the behaviour before it went in to them to have the temp sensor replaced a few weeks ago but hadn't used the car that much at that point so could have missed it.