Lately in Ohio its been getting ind of chilly at night, and I've been noticing some unusual noise first thing in the morning. When backing out or turning I hear and feel a slight groaning under my left foot, but after a few minutes it goes away. I had the same thing last year in the colder months but wrote it off as an issue with my broken cv axles and ruined control arms. Well now those have all been replaced and it is still doing this.

04 2.7 A6 S-Line

 

More description is needed my friend.
What's the sound, sound like?
Where do you feel it's coming from? Engine?
When does it happen? As you turn? On all cold starts?
If its a suspension issues I don't think it would go away after a while.

 

It sounds kind of like a really soft clunk/groan not really sure how to describe it, because its not a whine, wail, or heavy clunk like broken staibalizer bars or struts. It comes from underneath my left foot on the driver's side footwell. And it only happens with the first turn or two and only when it is colder (i.e under 60 or so).

 

Could be something power steering related. Ever had the fluid changed?

 

Yup, had the fluid replaced when one of my lines blew.