Re: Extrange door post-locking sound
That's totally true. However I went to the official service yesterday and they told me the same: it's just a "feature". The explanation was that the sound is related to the mechanism to stop the motors moving the locks in all five doors (including the boot).
I feel more confident now, I think I did not notice it before cause I was always listening to the radio.
P.D: When I was saying it sounded like a shot, I meant an air-compressed rifle shot, not that one from your previous post ;-)