I experienced the same situation. The times i experienced this noise was pulling in our driveway turning to the right and also hitting that "certain" type of bump in the road. I took it into our dealership and explained it to them. We took it for a spin and were able to duplicate it on that certain type of bump in the road. I ended up leaving it with them for the day and they found the problem to be in the Steering Column. They actually ordered a new Steering Column from the U.S. and replaced it. I was surprised to hear it was that because i always thought it was a strut or bearing or something related in the wheel well area. Anyways to sum it up the noise is gone and that seemed to be the problem.
It only had 4900 KMs on it. It's a 2008 AWD SEL (19 inch wheels).
Hope this helps.
