Sorted - found this on eBay, condition is described as new and it’s a big saving over the usual retail price (AUTODOC selling same Valeo one for £390). Seller made an offer of £266 which I accepted. They have one more available, might be useful for someone especially at this price. If the BMW specialist says it’s no good then worst case I’ll return under the 30 day policy. Reputable seller so should be ok.
https://www.ebay.co.uk/itm/135159713122?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=pJ2ARmirS8S&sssrc=4429486&ssuid=ufhkxma9syu&var=&widget_ver=artemis&media=COPY
Next lowest I could find was a LUK one on eBay with discount code for around £360.
