Emailed my dealer today to ask about the BW 42 rumour for the climate screen. Got a reply within an hour or two. My car has dropped back another week to BW 35 now. Not great but almost feels like good news given that I added the climate screen last month.
As the factory is shut for 4 weeks thru' July/August don't see that there is any chance of it moving forward from there. Hopefully it won't slip back any further, so I guess I should get mid to late September delivery.