Noise from disks NOT SQUEAK!

[AshRS3sportback]

I’ve noticed a noise coming from the front brakes when driving.

Very similar to the sound you get when your disks are maybe a little rusty after a wash. After a few dabs of the break the rust goes.... no more noise.

I have a feeling it’s the black metal shrouds behind the disks making a slight vibration, as soon as I apply the brakes it stops. When rolling without braking I can hear it! Not loud, but it’s there.

Any ideas or anyone else experienced this. PFL car

 

[D0C]

My guards were definitely catching. I'd hear thing occasional twang, like sheet metal catching. A few times it has got stuck and sounds so bad you instantly pull over. Audi insist all is fine. Hasn't happened for a while though.

 

[AshRS3sportback]

I got home and took a wheel of to investigate,
Can’t see anything out of place, just tapping the guards sounds like a tunning fork so perhaps I’m just hearing the vibration from those.

Either that or my pads are seized ha

 

[Hal Adams]

You might have a pad rubbing on the disc. Bear in mind that in their released state, pads are free to move between piston and disc.

I think if the stone guards were touching the discs, it would be noticeable - my penny to your pound a small stone has become lodged between the guard and disc. This can be a pretty awful noise, but not as bad as a stone lodging between caliper and wheel...