Brand New Ms3 With Brake Noise!

[TRUEREDMS3]

New Mazda owner here. Picked up my MS3 yesterday and noticed a strange noise coming from what seems to be one side of the front of the car.

When making a left turn into a gas station with my foot on the brake and turning the wheel I will sometimes hear a groaning or humming type noise from upfront somewhere. It doesn't sound like a metal on metal noise, just a loud type noise that sounds just like low pitched microphone feedback now that I think about it.

I tested the car yesterday and it only happens when turning slow 90 degree angles with my foot on the brake. Every other type of driving is great.

Any ideas?

 

[javanc]

New Mazda owner here. Picked up my MS3 yesterday and noticed a strange noise coming from what seems to be one side of the front of the car.

When making a left turn into a gas station with my foot on the brake and turning the wheel I will sometimes hear a groaning or humming type noise from upfront somewhere. It doesn't sound like a metal on metal noise, just a loud type noise that sounds just like low pitched microphone feedback now that I think about it.

I tested the car yesterday and it only happens when turning slow 90 degree angles with my foot on the brake. Every other type of driving is great.

Any ideas?

welcome to the forums. I will tell you my car does it, as well as my wifes 05 3i sedan. I believe it has something to do with the mounting of the front calipers. Creates a resonance but its not something to be alarmed about. I have a clunk when im going really slow like backing out of my parking spot, happens each time i apply the brake at low speeds. Ill let everyone know what it was when i get it looked at.

 

[fourthmeal]

heard some groaning from my 53 mile new MS3 too. You know what I think it is? The differential in the front transaxle! It is a high tech limited slip type, so it will protest in making huge differential speeds between the front tires (which we want to prevent.)

Noticed it while doing a U turn with the windows down. At first I was freaked, then I realized it sounded just like the limited slip on my Supra. Check it out, and listen real close. You said it happens at high turn angles, where the differential is working the hardest (well, other then when it works to prevent one-wheeled burnouts...lol), and it happens when you are decelerating, which is when the diff is unloaded.

I'm declaring this noise Diff noise. Tell me what you think.