Metallic Squeal
Thread Starter
6th Gear
Joined: Nov 2021
Posts: 6
Likes: 0
Metallic Squeal
Does anyone else get a metallic sounding squeal when driving around with the brakes not being applied? The sound is very similar to brake squeal, but it happens when the brakes are not applied. The squeal is short in duration (maybe .2 of a second), is not very loud, and is pretty consistent (but you need to really listen for it, e.g., windows down, stereo off, AC off or low, etc.). I have been assuming that it is brake dust, but wanted to see if anyone else has been experiencing this problem. Car is a Z51 with OEM bake pads. I pointed out to the service department when getting my first oil change, but they said they were unable to replicate the noise.
Would appreciate any insight anyone has. TIA!
Would appreciate any insight anyone has. TIA!
Melting Slicks
Joined: Jul 2002
Posts: 2,223
Likes: 556
From: Tallahassee fl
Based on your post history you are tuned in to sounds (I am as well). Betting you are just more in tune to it than most everyone else and it's something normalization no one else hears
Pro
Joined: Feb 2018
Posts: 611
Likes: 415
From: Texas
I think it is more likely he has something between one of his brake pads and rotor. I would take it to a different dealer or a brake shop to get it looked at by someone else.
Instructor
Joined: Aug 2021
Posts: 119
Likes: 150
From: Dallas, TX
When does it happen? Where does it sound like it's coming from?
I had a squeak coming from the engine area that is gone after a muffler replacement today: Squeek from the engine area
I had a squeak coming from the engine area that is gone after a muffler replacement today: Squeek from the engine area
Racer
Joined: Mar 2023
Posts: 264
Likes: 233
From: Cape Vincent, NY
This is actually not uncommon. Human hearing goes up to 20khz or so and then as you get older that limit goes down to 15-17kHz. I few years ago I was riding with my dad in his truck and he had brake squeal like crazy but he could not hear it because the frequency was too high. My wife could not hear it either but I could hear it clearly. Brake squeal can be low or high freq with the high freq stuff between 14-18khz depending on the amount of contact and material. Its very possible you are hearing that and others can't. If you are not on the brakes it is probably something else other than the brakes but I would check pad clearances with the brakes off and also check the parking brake pad clearances and also check for foreign objects. One tell tale sign is striped wear on a rotor that the other rotors do not show..
Another item that can squeal like this in high frequency is wheel bearings. Doubtful you have a bad one but it is possible. I had this on my previous R8.
Another item that can squeal like this in high frequency is wheel bearings. Doubtful you have a bad one but it is possible. I had this on my previous R8.
Racer
Joined: Nov 2020
Posts: 353
Likes: 312
From: Rochester, MN
There is a TSB on brake squeal on the C8 where the dealer can install anti-squeak grease on the pads. Mine were noisy when backing up and the grease helped a lot. Not sure if this is the issue for you here, but worth looking into.
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