horstle

Has anyone experience with engine vibrations between 2000-2300rpm (mine is a Turbo S MY 06), gearlever at P. the vibrations cause the whole car to vibrate slightly. If the engine is cold vibrations are not noticeable. engine itself runs great, has full power.

Engine mounts? Transmission? Torque converter? any ideas?

thanks in advance for help

I heard the same answer from my dealer when I showed the problem, juddering at 1400rpm up to high speed. Answer 8 of 10 are doing that. However, I asked some other mechanics and all replied that juddering/shaking etc is NOT common or usual and always a sign of out-of-centre parts.

key problem is juddering periodically and stronger in high speed range between 230-270km/h.

Did you try when the gear-selector lever on Park mode if the car is still juddering between 1400 - 2300rpm? if yes, it´s something withe engine, torque converter or gearbox.

the height adjustment of the co-driver seat broke - according to Porsche they have to change the seat mount incl seat shaft etc - costs are 900,- EUR. The car is 3 1/2 yrs old, Porsche show zero goodwill on fixing their costs.

Has anyone ideas how to repair and get spare parts

thanks in advance

Have the engine/transmission mounts been inspected? A collapsed mount can cause excessive drive line angles or resonance through the chassis.

I've no idea how one checks the cardan shaft for optical errors... is that a fancy way of saying they looked at it but couldn't see anything wrong?? How many miles on the vehicles?

I was in at the PD last week, they looked with a small mirror if anything wrong with the engine mounts. I assume they looked at all other mounts which are visible - again optical check.

The car has 92000 km approx 55k miles.

In a german forum a broken torque converter (out of centre) or torque converter bridge ?! was mentioned.

Any ideas, porsche´s intelligence has NO idea.

I have a Cayenne Turbo S MY06, the car while standing vibrates (lever in P) slightly between 2000-2300 rpm. When driving the whole car starts little shaking ( I did in 6th gear, lever to M) at around 1500rpm (not periodically) and only when accelerating all the way up top speed. At around 230 - 270 km/h the shaking is clearly notable and coming in shorter intervalls like every two seconds for two seconds. When I stop pushing the throttle the vibrations stop.

The Porsche dealer changed the coils and the tranny valve box. Before changing the car got shaken hardly because of harsh downshifts from 6 to 4 or 5 to 3. PD checked the cardan shift for optical errors, nothing visible. Porsche has no explanations except 8 of 10 Cayenne start shaking... my mileage is 92000km or around 55k miles.

I looked through the forums but could not find adequate answer for my problems. Does anyone have the same experience or can help me?!

Thanks

HO

Every case is different, but driveshaft problems are unlikely. Im aware of one Cayenne TT owner who had both front axles replaced, the steering rack, the cardan shaft, and a brand new set of tires sent to Tire Rack to be heat cycled, trued and balanced, none of which fixed his slight shimmy.

as you can read below driveshaft problems are very likely - beside others with that car

my guess as to how many would be few. my take on vehicle problems and those the people that are on the forums is that they (we) are very detail oriented and aware people who notice even the slightest issues. i am not saying there is not a problem with the Cayenne, i am saying that there are thousands of Cayennes on the road and if you read this forum, there may be a total of 10-20 people with issues. PCNA will never consider this a big problem with so few people complaining. IMHO By the way, i am seriously considering the purchase of a Cayenne, i currently drive a 997S, but every time i drive a Cayenne i love it. and no i have never noticed the vibration thing, but i will be sure to pay more attention from now on.

I have a lot of troubles with my CTS, but what I never expected is that Porsche does not care at all about well known problems. Even if they appear only at few cars - a brand like porsche should fix immediately without letting they customers discussing in a forum. Second, most porsche drivers do not complain as they were told fairy tales from the dealers why and what is broken, and pay without teking a second opinion or looking into some blogs

There is a known issue for hard shifting from 5-4 or 5-3. Pay attention to which gears you're in when you feel it. If this is your problem you'll need a new valve body in the transmission. They're not cheap.

I changed both the valve chest and the coils - is it possible that the mount of the cardan shaft or some bearing broke?

regards