It’s what’s expected from high-performance brakes

Squeaky brakes are never fun to listen to, but apparently, Porsche is also tired of hearing its customers complain. Porsche produced a detailed, four-minute video explaining how and why brake squeal occurs in large-diameter, high-performance brakes. The German automaker goes on to assure its customers that the noise is completely normal and not an indication of malfunction. Of course, Porsche will gladly have technicians inspect the brakes at a customer’s request.

As the video describes, brake squeal happens as the brake rotor undergoes tiny but rapid vibrations under braking. The action makes the large rotor act like a speaker, amplifying the vibrations into an audible sound. Due to the minuscule inconsistencies with each braking application and the environment in which they occur brake noise isn’t something that is easily engineered away.

Vehicles with smaller, normal-performance rotors have a less likely chance of developing brake squeal under average conditions. Customers buying high-end sports cars with prices varying between $50,000 to $190,000 typically demand perfection. Hopefully, thanks to the video, Porsche customers will understand their squeaky brakes are working perfectly fine, even if they don’t sound so great.

Check out the video above for an in-depth, animated look into the science behind brake squeal.

References

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