Braking Producing Buzzing Sound?

[318ti Coupe]

I'm getting this buzzing sound coming from the front-left side of the car [Note: My steering wheel is on the right hand side] either in the engine bay or the left wheel, whenever I brake and a slight vibration from the brake pedal.

Also, the brake light sensor is on but when I press the brake pedal all the way in, it turns off.

Does anyone know what it means?

[halobeamin]

i don't :(

[aceyx]

It means check your brake pad wear.

Pull the wheel off and turn the steering wheel to your right. You can visually inspect the pads through the caliper from there.

[318ti Coupe]

Ok thanks. But is the buzzing sound normal?

[aceyx]

The only way to figure it out is to take a look.