Wheel bearings are under the greatest load when cornering; a wheel bearing that isn't too bad will first make noise only while turning, then, as it gets worse, it will make noise all the time.

As I mentioned earlier, jack it up and give it a spin. Then repeat with the other front wheel for comparison. A wheel bearing may clunk simply through being out of adjustment.

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I choose to be happy, even when the Mercedes is being awkward, lol