My car makes all sorts of noises, and my E39 was no different (the CD player especially went crazy with all sorts of random sounds on shutdown).
On a few occasions I've stayed in my car for a few minutes after shutting it off to wait on someone and it goes through a little symphony of humming/clicking sounds from all parts of the car. I hear the water pump come on and shut off, then I hear a few noises from the back of the car. There's also a slight "whirring" sound coming through the HVAC, which I assume is the system shutting down.
And of course the CD player has to sing me the song of its people.
2008 E90 335i // Black Everything // photos
COBB tuned / QTP e-cutouts / Helix FMIC / cp-e DCI / AWE BOVs / Black M6 wheels + Toyo Proxes
(and yes, I am a girl)