Our 2018 has a knock from the LHS (nearside). I was hoping it was the drop links and replaced them (as cheap) myself but the knock is still there. I believe its the top mount. I found (after changing the drop links *sigh*), with ours you can only replicate it if someone is sat in the passenger seat when you push down on the front. Bonnet up, push on inner wing edge or the front hard to get it bouncing (I have to get a good bounce on it to knock). If you bounce it without someone in the passenger seat, no knock noise. The knock coming from the top of the strut. Might be worth trying to see if you can replicate it that way (careful when pushing hard you dont bend/dent anything!).