That looks incredible, how much of a ball ache is it to remove the wheel? I am always worried that my airbag will go off.
Denso
First time I've done an Audi one but the airbag release is pretty much the same idea as the BMWs. Only difference is you release it from the back of the wheel rather than the sides. The airbag is held in place with a spring clip that runs along the insider face of the wheel and holds the airbag in at two points. You turn the wheel one way to get access to a hole on the back of the wheel and you then stick a screw driver in and give it a wiggle. That releases on side of the airbag, then you do the same again, turning the wheel the other way. After that you just let the airbag rest in place whilst you disconnect the negative terminal of the battery in the boot.
Now you just release two electrical connectors behind the airbag to disconnect it,. Set it aside and then undo a single star-bolt before pulling the wheel off.
Couple of torx screws inside to release the trim and it all comes off in a oner. Much easier than the M4/M5/M6 that I've done before.
Very difficult to set an airbag off to be honest. You'd need to be very ham-fisted I reckon.