For Porsche to have created this film about why the brakes squeal in their cars, will it have received a high number of complaints from its customers? Nothing less than excellence and perfection is expected from Porsche, so the symptom of squealing brakes may imply that there are more serious problems with the sayings.
But from what Porsche reveals in the film, there's no need to be afraid. Squealing brakes very rarely indicate problems. The German brand has been recognized for many decades for the excellence of its braking systems, not only for their power, but also for their ability to resist fatigue. But this does not prevent the hissing from occurring.
Why do the brakes squeal then?
From what the brand mentions in the film, differences in the variation in the wear of the inserts is one of the main reasons for the annoying screeching to appear. Even small vibrations that may arise are amplified by the brake disc, resulting in the high pitched sound we all know.
In the case of Porsche, where most of its models come equipped with high-performance braking systems, made up of large discs and pads, this makes it difficult to apply the same pressure over the entire pad surface, especially at low speeds, which in turn increases the odds of such screeching.
Difficulty in uniforming braking pressure leads to vibrations, which can lead to screeching
But the sound is perfectly normal, according to Porsche, not indicating any malfunction in the braking system.
We leave for the film the more technical considerations about why the brakes squeak and, having been made by Porsche, the brand's very positive speech about itself is understandable. However, it doesn't invalidate solid arguments about why the sizzle and, hopefully, it has a calming effect on the brand's customers.