Man, you are a real biker.
You know that book thing, that came free with your motorcycle? No? OK, you are looking for a book, with a picture of a motorbike on the front, that looks pretty much like this:
Your book will have a different picture on the front but don’t worry or get too intrigued, at least you’ll now know what you are looking for. If you can’t find it or really are not sure what it is you are looking for, pop alone get to your local ‘official’ BMW dealership. There is one in Battersea, which (as you seem to live in London) may well be convenient. Who knows, you may even meet some likeminds when you are there; wouldn’t that be great?
Anyway, it’s crammed full of all sorts of useful and helpful stuff, including how to turn your bike off. As the book is published by BMW (they are the people who made your motorcycle) it’s about as ‘official’ as you can get. This is what it says:
Switching off ignition
Requirement Radio-operated key is within range.
There are
two ways of deactivating the ignition.
Version 1:
Briefly press button 1.
Light is switched off. Handlebars (steering lock) are not locked.
Version 2:
Turn the handlebars all the way to left.
Press and hold down button 1. Light is switched off.
The steering lock engages.
PS Button 1, is shown in a picture in the book. It’s the button you used to turn your keyless motorbike on with.
Helpfully, it’s marked ‘On’ and ‘Off’. The thing that looks like a padlock, is the steering lock. Its operation is also described in the book.
PPS The kill switch is, as its name might imply, an emergency method of killing the engine. Not every stop is an emergency. If you find that it is, then maybe motorcycling really is not for you.
You can also stop / kill the engine by coming to a halt in gear and flicking the side stand down. This is not ‘official’ as it’s not in the book.