Newby here - so hope this is in the right place.
Played with the car today (2007 300c 3.5 V6) and had occasion to turn key to "ign" without starting...(have always gone straight to "start") - and heard a noise from the throttle body. It is like a "flap flap flap" - or "three clunks" noise. I removed the ducting and it is the noise of the butterfly valve opening and closing in a prescribed pattern very rapidly about three times - and it does it every time the key is turned on.
I've never noticed it before - so not sure if I've just never heard it - or if it has just started.
Is this normal? Or is there a problem? Car seems to run fine.
If someone could try theirs - or just knows - would be a relief to know!!!