Car: 05 CTT
Mileage: about to hit 70K

Yesterday, driving home from work, I was at lights and turned right, accelerating very moderately. I felt vibration coming out of bottom of car, felt kind of under the center console, middle of car.
Thought nothing of it.
Later, driving to gym, accelerated and felt thuding noise from same area (acceleration was faster this time). Seems to do this every time I accelerate.
Later yet, driving back, I tried and it seemed not to be doing that under similar acceleration, however, due to having to do an errand, drove again, and tried to duplicate.
This time, it was doing it under lesser acceleration.
Today, on the way to work, same, starts happening under smaller acceleration and i can feel it.


Have a lot of questions, but will start with:

1. what do you think it is?
2. can the car be still driven in such condition if not accelerating harder? I am talking a week or two?
3. what is the risk of getting stranded if not fixed immediately?

Will ask other questions after responses, so that I do not taint the thread with my views.


Thanks.

 

Have you had the Cardan shafts replaced before? Seem pretty common.

 

Bought the car preowned and history did not have cardan shaft replacement. So I am pretty positive, the shaft is original.

 

OK. I went under the car. Crawled under it and pressed the shaft near the joint and support. I see play of at least an inch - when pressing up or sideways. What do you recommend now?

- what is cheapest place to get shaft from?
- any shafts that are more durable?
- what will I need to replace - assume the shaft, the joint support and the flex disc? Can you confirm?
- anything special about rplacement? Should be fine with raising suspension and turn the wrench?


Thanks

 

That's definitely the cardan shaft. You can get the support bearing from us and have a driveline shop install it (not a DIY), you can also get a new shaft (new ones include the support bearing) and replace it yourself. We offer an aftermarket Cardan Shaft that costs a few hundred less than OEM. I'd recommend the installation tool, 00072196800, to ensure that it's installed straight. If it's not, it can wear out the new bearing pretty fast.

 

Thanks for your help. I actually already pulled the trigger on a shaft with the support bearing. Thanks for the offer though. Have a great day.

 

whats the word on having to replace flex disc? I ve been told they generally do not go bad, but some places guarantee shafts only with replacement of flex discs.
So anyone can advise on this?

 

I have not seen one go bad on a Cayenne. On other vehicles, it can be a pretty common failure. If the warranty on the shaft you bought specifies that you need a new flex disc, I would replace it, since they're not that expensive, and it's only be 3 additional bolts to remove it.

 

OK, all done and I managed to do a DIY for this job too. Hope it helps the nex person.
CLICK HERE