[Horseman]

Hi, I am new to this forum and noticed your question.

I have exactly the same year and model and I had the same problem about 3 months ago. The good news is that after checking wheel bearings, shocks, etc. the solution was VERY simple.

In my case it was simply low power steering fluid level. No tricks involved in fixing it either - open the cap and check the level - if its low buy a bottle of the correct fluid from BMW (or another supplier) and top it up.

The noise disappeared immediately. Hope it works for you.