Anybody ever experience a moaning sound coming from underneath or behind the rear seat? I can't pinpoint it exactly. It sounds like a person who is suffering in pain. The sound goes in and out (i.e., it cycles between silence and moaning -about 20 times per minute)

I've taken it to the dealer but they don't know what it is. They say it may be a clogged fuel filter. I don't want to spend money on it if it's not going to fix it.

Thanks for any help.

Gerardo
(Audi enthusiast)