I made an mp3 file with the sound heard when right next to the rear left (driver's view) wheel. It is a helicopter noise! that isn't heard when right next to rear right wheel...

Just go this marvel some days ago and not sure if this is normal or not.

Please listen to the mp3 file (zipped) and advise accordingly (BTW: 997 S / 2006 / 30K km's).

Rgds