RevJim99

Just want to say thanks to all who have replied. Based on these replies, and some other postings I found from a few years back, I have a better understanding of the "hesitation" in the vehicle. I guess knowing that a bit better, what I would say is that it seems like during that "hesitation" time, the engine is jerky/hiccuping. It's not just that it is running smoothly but does not gear down and accelerate as quickly as I would expect - there definately is a rough feeling to it, which is kind of similar when you are trying to start a manual vehicle in 3rd or 4th gear (not that drastic, I don't feel like I'm going to stall or anything). A choppiness to it. Anyway as I mentioned to DennisC I'm a long way from home at the moment but this is really helpful. It's good to get a wide range of inputs/experiences to have ideas of things that should be looked at when I get and I appreciate very much everyones time to give their thoughts. And a little reassuring that no ones first thought is that my tranny is going to fall out..... Thanks again RevJim

Dennis Unfortunately I'm 4000 miles from home in the Yemen desert at the moment. I'll ask my wife to take a look, where would she find the build date? Is it stamped on the drivers door? I only drove with PSM off in the city, not at high speeds, so I don't know how many gears I might get through eventually. There is a mechanic near me that does work on german autos - is the coils something they could likely look at or would they need the PMIS or whatever it is called that likely only the dealer has? Is this kind of work something I should definately go to the dealer for? Anyone have any ideas what kind of costs I would be looking at to have them replaced? Probably obvious questions to some of you, but like I said this is the first vehicle I've owned that I really have much interest in learning about. Thanks for any information you can advise

wvicary - thanks for your response. Can you advise, what gear is your vehicle usually in when you are travelling at 50-60 km/h?

Good Day everyone, I've recently become the proud owner of a 2004 Cayenne S and I'm a little concerned with how it is performing at medium speeds. When driving at around 60 km/h in the city, with PSM on, it gradually shifts up to D5. Then if I want to punch it up a little to say 75km/h, it feels "jerky" for a few seconds, almost like it is flooding itself or something. Eventually it will shift down and accelerate OK. The local dealer checked it out and said no issues, but I'm not sure they actually took it on the road, most likely hooked up to their computer. They did report a couple of "soft" backfires detected by their system that they indicated might be bad gas (they said it is a fussy vehicle for gas?) or might be my coils, I'm going to try a different brand of gas for a while to see how that goes. I'd only driven it a very little bit before taking it to the dealer (had to get a headlight replaced) so I accepted that when I picked it up, but having driven it more now it just doesnt feel right that it should be jerky/shuddering like this. Is it normal that it would be in D5 at these speeds? Dealer said that was for fuel economy, it goes to the gear to minimize fuel consumption. It goes just fine off the line, and at higher speeds (where the D5 seems like a more sensible gear to be in) it is fine if you want to knock it up a 10-20 km/h. Have driven a little with PSM off and don't have the same issue, but does seem to rev a good deal higher before switching gears. I've read references here and there to a software flash or something to correct an initial issue, though I can't believe that was not done in the past. Does anyone have any ideas and/or can you advise if my gearing makes sense / matches their experience? I'm not much of a gearhead (this is the first truly nice vehicle I've ever owned) so sorry I can't describe it better but maybe this strikes a chord with someone..... Thanks for any tips or advice.