I have a 2008 turbo. Anytime the gas is below about 1/2 tank, the sound of liquid sloshing about is quite loud in the cabin. The sound emanates from below the left rear seat. It is loud enough that new passengers always ask about it. It is most audible in slow, stop and go traffic.
Is this a unique issue with my Cayenne or is this common?
Is this a unique issue with my Cayenne or is this common?