dhirm5

From your description it sounds like lugging - you’re in too high a gear at low rpm.

Tobeit

I know what lugging is but this is just normal cruising below 3000RPM and in auto-mode with PDK. Same when cruising at higher speeds but same RPM on Highway and let the PDK decide what gear it wants to be in.

zachr

I suspect this is because in Normal mode, the PDK is not very aggressive with keeping the clutch engaged. If you're teetering on the brink of holding the right amount of torque to drive at a medium speed, the sensation you're describing is the clutch remaining engaged while the engine transitions from powering forward to engine braking. In normal mode, the clutch is used more actively to dull the effects of engine braking for a more comfortable ride. In sport and sport plus, the clutch remains fully engaged and the transition between power and engine braking is less subtle.

Tobeit

That sounds very plausible. Would you expect that also happen when accelerating moderately in sport mode not just cruising at low RPM?

ipse dixit

Have you ever driven a PDK? In any generation of 911’s?

If you have, have you driven another 992 911 PDK? And does it do the same thing?

Tobeit

I only have experience with 992's. I did test drive a few before buying the one I have now. But to be honest, during test drive I was not paying too much attention to what happens at cruising RPM or slow acceleration. So, can't tell but certainly don't recall any of it.

detansinn

I would even add dual clutch car to that question list. A PDK is not going to be as smooth and buttery as a torque converter transmission -- it's got some character.

yrralis1

PDK is not an automatic transmission. It is an auto manual transmission. In normal mode Porsche tames is down the shift points and aggressiveness of the map. In other models like the Panamera or Macan the entire drive is more tame. However the 911 is aimed at sport and performance. With that in mind sport mode will be more aggressive and thus a little more choppy than normal. Most of the abruptness is felt in that lower gear downshift and that is because it retains the eagerness for “Sport” mode. Sport plus will be equally as choppy if not more but maintain the higher revs longer aiming for the most aggressive map. It simply takes a little adjusting. Comparing to other 911 before it the The 997 was so choppy that I had to shift in manual mode. Then I 91 the two was the smoothest of the three even in sport mode but I need to be a little more prepped for sport. Now that I have the 992 I think they got it just right. Even got normal mode just right. In the past normal mode was beyond boring. Give it time and you will find yourself adapting and you will also find the car computer learning your style.

Tobeit

Thanks a lot. Yeah, I don't have much to compare with in terms of PDK. Maybe I am also not clear what I describe. I don't mind a little choppiness when shifting and acceleration - entirely fine and I expect that. But what I observe is if I simply cruise - constant speed at constant RPM - in sport mode < 2800 the entire car wobbles/vibrates a little constantly. I can even see my passenger seat back vibrating a little. Like I said before, feels like driving over a cobblestone street but not as bad. Its not the tires or alignment as its not there at same speed in normal mode, no steering vibration or steering pull....just "car wobble". Is that what you experience as well or would expect?

breny4104

I am trying to recall... don't the engine mount characteristics change in sport/sport plus mode? Another thought is that maybe the car is chomping at the bit (so to speak) in sport model - like "I'm ready to roll put on the power."

Tobeit

Dynamic engine mounts certainly come to my mind but did not want to speculate. It's certainly feels it wants to go and I hold it back ;-) ..therefore I mostly recognize it when cruising with my wife on board. :-)

99-911

I second that thought.
possibly PADM are about to go, they are supposed to stiffen up in sport mode while maintaining the appropriate dampening but apparently they are not which you feel as a wobble.
I hope your car is CPO so they will be covered under warranty.

Malakas

Have the same issue was told is the pdk "virtual gears", when you're low rpm with small throttle inputs it sometimes hesitates / slips. Hate it

Ray K.

I don't think this issue is related to PDK as I have something similar in my 7MT car. I notice it round 2800 RPM during low/partial throttle acceleration. I assumed this was engine related, not transmission. I notice mostly when I'm in 1st and 2nd gears in traffic. I haven't put much effort into paying attention to drive mode (engine mount characteristics) or how warm the engine etc. I thought I read in another post that someone experienced or was expecting to experience this hiccup being fixed with their engine tune.