We were discussing this feature today at Berry Motor Group!
My V60 seems to have moisture probably in carpet, windows fog with heater on so A/C is needed all the time.
Now, the discussion was wether mine has the moisture sensor that runs the interior fan even when car turned off so to get rid of moisture.
The lads say yours has it.
We are not sure if mine does and it's failed.
So , that's an option , or , what you mentioned.