2012 Cayenne Rear Rattle

[JBSport01]

I have a 2012 Cayenne Base with 17,500 miles.  I bought it new and drive it infrequently.  I just started noticing a faint rattle from the passenger rear end.  It happens at low speeds and sounds like it might be coming from the exhaust (although the exhaust is not lose and the heat shields are all fine).  Has anyone had an issue with a baffle in the muffler breaking? If it's not the exhaust, it is probably some suspension component.  Are there any rubber bushings that need lubrication in the rear suspension?  I have the stock spring suspension.  Any experiences or advice would be appreciated.

 

[RobertDenali]

Yes, it is probably the baffles. The diaphragms wear out and then rattle as they get worse.

 

My GTS had the same problem and unfortunately those are located inside the rear muffler. So $3k later just for a new muffler not including labor and problem fixed! I bought mine as a CPO with this issue. I had porsche remove the CPO warranty.

 

I “fixed” mine by plugging off the vacuum lines for the vacuum cans using bmw vacuum plugs. It cost me $12 total.

 

Now I have sport exhaust all the time and I am very happy with the sound. I plan on putting a tubi exhaust on in the near future...