4 windows
A little birdy told me the smaller rear windows on the E89 "coupé with a folding roof " were designed to drop to enable the driver to experience the joy of the exhaust note whilst the roof was still up and the main larger windows were closed; don't know if this is true or not but I can confirm that I just love being able to drop the small rear windows and listen to that growl day in and day out, with or without the front windows up/down or the roof on/off.
In fact I cant remember the last time I took the Zed out and didn't drop the small rear windows to listen to the Growl
MikeS; Had a small issue with my windows. As you know when you open the door on the E89, the window drops a couple of inches automatically, then when you close the door it closes the windows again automatically
Nice touch - however I have had the windows sporadically drop to say half open when you open the door, then not do it again for a few days, then do it.
I was just going to add this to the list of items for dealer to look at next time I visit service centre, but will now try the reset option (Thanks AlanJ) next time this happens.