Octavia air escaping sound on engine turn-off

[Jalopy]

118TSI - Has anyone heard a whistling/air escaping intermittent sound for about a minute on turning off the car? I have had the car for a few months (bought used - it is a 2010 model) and never had the problem before. The car has gone through the dsg re-call and had the 60k service done recently. The only other change I can think of is using the air-con for the first time recently.

[Rubbadub]

I get a wheezing sound from a 132TSI for about a minute - maybe the same sound?

[zei20t]

when I turn my car off after a drive, the throttle resets - and I bet other motors do too; the cooling fans may still be on; the AC valves release and the refrigerant does its stuff - which what you may be hearing.