[churchwa]

When travelling at speed and then lightly braking I often get a loud noise coming from the front left.

https://photos.app.goo.gl/5FBgtipAZRerHuhT7

I showed it to the dealer and they said they won't touch it and BMW won't deal with noises from M car brakes.

Does it need a good bedding in, is that the issue?

[Ximian]

That's not even in the same ballpark of the braking noises that BMW won't deal with. Do not try to bedding in those pads.

Something isn't right there and whatever service advisor thought that was normal is clueless. It could be something as simple as a pebble in the pads, which is not covered under warranty. Take pictures of the both sides of your rotors to check for damage. If there is no sign of damage, take it to the dealership and don't give them any details outside of a "braking problem." The techs should figure out what's going on, no the SAs.

[jmr0311]

I get the exact same thing, only on front left side. Running CCB's for brakes on my M4.