[Steve48]

Hi all, just passed 3k miles in my 2018 Cayman S that I bought a few months ago. Just loving the car, what a blast to drive. Recently, I have noticed a slight brake squeal at low speeds, that I can only hear with the windows down. I checked the brakes, and as you would expect with just 3k miles and no track driving the brake pads and rotors look new. I called my service advisor and he said this is very normal for "race inspired brakes", and all they need is a few very hard stops to stop the squeal. Admittedly, I am very easy on the brakes and per the above have not tracked it yet. Normal or should I go get it checked out?

 

[MLJJ]

Just about the same situation as you. Mine talk to me every once in a while, mostly when coming to a slow stop. I think it is a function of the pad and rotor composition. I don't worry about it and haven't had it checked.

 

[dreamer]

Evidently it’s a common occurrence. Mine happens when I’ve been driving a bit longer than normal and it’s humid outside.

 

[ArchiProf]

Porsche made a video addressing brake squeal.

From the video "Brake squeal occurs when the energy of motion is converted into heat, in minute vibrations, which then dissipate throughout the brake system. This noise is often mistaken for a malfunction; however, that is rarely the case. Brake squeal is a result of a condition called stick-slip, [that causes] microscopic vibrations that create noise to be broadcast by the brake rotor which acts as a speaker. Necessity dictates that the Porsche brake system be designed with large rotors and pads. Due to the larger pad surfaces, pad pressure distribution can vary when the brakes are applied at low speeds, increasing the propensity for brake squeal."

 

[718Niko]

Mine does more of a "DONG" noise audible from the inside, when I release the breaks, sometimes.