Delighted with my Z4. Used to have a MX5 mk2.5. All went well until today. Doing some DIY to the front of the house with Z4 keys in my pocket. Neighbour knocked on my door later on to check if I meant to have the roof down on the Z4 as it was tipping it down with rain. I gather if you accidently press the right combination of buttons on the key the roof will open.......and you may / may not be aware that it’s happened. Why? Why? Why? does a Z4 need a remote roof down function. Can it be disabled?