From what I have read on Briskoda the cornering function can be enabled using a VAG COM so I guess that the hardware must actually be there.
In terms of their use I don't really see any advantage to them. I've stopped even noticing whether they come on or not. If you were somewhere where it was pitch black or maybe in very heavy fog they might have a use. I've used them in fog at home (around 20-30m vis) and the extra illumination on the drivers side is noticeable but not really useful and on the passengers side I can't see any difference.
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