The amazon one I bought was: (use parcel motel)

https://www.amazon.co.uk/Sengear-616...adlight+washer


And I ended up getting genuine painted headlight washer covers from this guy:

https://www.ebay.ie/itm/202131713621?ul_noapp=true

Only difference between the genuine bmw washers and the Amazon one was the colour of the rubber o-ring, works perfectly!