The little switches on BMW electric handbrakes have proven to be a bit delicate and as I have received a few second hand BMW's these are quite often damaged. Fortunately the switch out for a new cover is quite easy and cheap for a non genuine copy. See the links below
Affiliate Links:
Pre 2014 Handbrake switch:
Post 2014 handbrake switch:
Trim Removal tool Set:
Torx Screw driver set:
Torx Sockets: Great for every BMW owner.
Hook Pick set for removing plugs, plus other Great tools to have on hand:
4pce hook tool set, to remove wire connectors:
Stanley Basic Tool Kit 65 piece
Stanley Basic Tool Kit 210 piece
Thanks for watching this Mark's reviews and Tutorials video. Mark is not a trained mechanic. Just a car guy that loves to drive and work on cars. What I do here may not work on your car and I am not intending to give professional advice for you to work on your car. But if you do know a bit about cars then hopefully watching these videos will help you to sort out what is going on with your car. Mark is not liable or responsible for any damage you do or things that happen to your car or yourself.
Cars are complex and dangerous things and not only can you be hurt working on them but you can also do serious and expensive damage to your car.
Cars should be worked on by qualified people, don't over reach.