My mother's convertible, (not a MINI) switches from auto climate to normal aircon if the roof is lowered. Would guess the MINI would be the same.
You do have plenty of time until May (don't worry, it won't be as bad as you think it is) to read the manual, and you'll want to do it before you take delivery of your new Mini, because you'll be so busy motoring around once you've got her, you won't have time to read the manual. I am, of course, speaking from personal experience. Since taking delivery of my MCC in November, this is the second time I've perused through these forums.flibmeister said:Thanks for the all the replies!
In particular the link to the manual-- I should have time to have it memorized before the car arrives.....