Got a 56 plate ST2, drove it today, came home and parked it up. Went out to it about 3hrs later, got in and I could hear a funny noise behind the dashboard. It's a bit hard to describe but sounded like a gurgling/flapping sound? Did it for a few seconds, stopped for another few seconds, then did it again. It stopped when I turned the ignition on.
I've heard the climate control flaps reset themselves about 10 mins after switching the engine off, they make a quiet whirring sound, but it definately wasn't that.
Any ideas as to what it could have been?