Yeah, and it is an unusual pump/assist setup, I think electro-hydraulic?
Ive noticed, in several cars, that if you are stationary at lights, and you turn the wheel maybe 20-30 degrees and hold it, so that there’s a bit of compression in the rubber and steering system, there’s a periodic twitch of the wheel. Quite peculiar. Never seems to happen underway, but not something ive experienced in any other vehicle.
so it could be a new pump, an uprated pump, or a slightly different setup of pump/assist. Or option d, all of above, or e, none of above… gotta love idle speculation!