Brake Noise

[Davidcliff]

Hi
My car had new discs and new pads all round from a BMW dealer 1200 miles ago.
I think they all make a noise, heard at low speed or when creeping about slowly and quietly down country lanes .
They make a noise all the time not when on the pedal. There is just a constant low level noise almost like a low level ring from the discs.

I took it back to BMW dealer and guess what , they all do that sir perfectly normal pad on disk noise. They did inspect the car but they are not helpful far from interested .

So , do they all do that ?

Thanks

[warmasice]

Doesn't sound normal. Shouldn't hear that kind of noise when you're in the car.

[Ewazix]

If they are new'ish and not bedded in right they might have glazed which can cause groaning or 'scratchy/squeal', it might be worth giving them a hot bed-in procedure which is recommended by many of the big name friction manufactures.

https://ebcbrakes.com/articles/bedding-in/

[Busterboo]

Good post, Ewazix. Very good.

[mr wilks]

Id jack the car & roll each wheel individually , that should highlight if one has a sticking caliper or something catching / rubbing

[Davidcliff]

Had all four wheels off today checked all mechanism and all suspension components , rear Cv's and all brake components , all wheel bearings good all disc are new all pads are new, all sliding well in carriers and all greased where necessary.
In fact all the wheels make a little noise when turning and I would say it is normal pad to disc noise .

But at 30mph there is just a slightly ring and its spoiling the ride for me a bit now . I have not had this before on 35 years of motoring and 35 years of fixing my own cars so mystery to me right now . There is just brake noise but not effected by touching the pedal ?

Its got me stuck for now