Brake Squeal Explained
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- เผยแพร่เมื่อ 30 ก.ย. 2024
- Brake squealing or squeaking is rarely a sign of trouble. Porsche engineers explain why there is a propensity for brake squeal. Though this is typical of high performance brakes, our superior engineering strives to minimize unwanted brake noise.
Combined fuel consumption in accordance with EU 6: 911 Carrera 4S: 8,9-7,9 l/100 km; CO2 emissions: 204-180 g/km - ยานยนต์และพาหนะ
Hahaha look at Porsche being passive aggressive
Otherwise it would come out as, "You whiny, effete, pampered customers, we didn't design it wrong; you simply don't understand the underlying physics and engineering."
jeebus2121 hahahaha so true, i died xD
Saying “stupid fucks read up on physics” would have been too short
LOL... "passive aggressive"... not quite.
Which is hilarious because if they simply used better brakes they wouldn't squeal. I wouldn't need an informative video if porsche make cars without squealing brakes.
mine bothered me so much, I had my brakes removed entirely.
best of luck to you
Good idea
Haha yeah brakes are for cowards, who needs them anyway
they only slow you down anyway
How did you leave this comment?
I can sum it up in one sentence: powerful brakes squeal, deal with it.
Sean Xu only really good brakes and really shitty brakes squeal 😂 most just don't understand
Sean Xu But why do I get ear raped by the squeal of bus brakes
O my bad I assumed only buses with shitty brakes squealed, these new double deckers around me are perfectly silent...
Lmao thanks for enlightening me.
This is my 4th 911. my new 2019 is the only one that has had this problem. My friend has the same car and no brake noise. So Porsches answer the brakes are so good they squeal is BS.
This is basically Porsche saying "Stop being bunch of sissies" to the customers and cars are still mechanical and sounds are part of it and dont listen to your Tesla owner friends or neighbors (especially if live in San Francisco)who think this is a problem.
No this is Porsche saying 'deal with it' because we can't fix it.
Not just that..if there was a way Porsche would have already cleared it because ..well they are Porche.!
Lol you trigger the Tesla fan girls 😏
Teslas don't use the brakes as normar cars, they tend to recover the energy while braking with the electric motors, also because there is no ICE the noise insulation is needed to be quite intense because others sounds tend to be more noticeable
The many reasons I left San Fran, Snowflake central
Very nice video. But for those with short attention spans, you can go with the simpler explanation: because racecar
Jason Wingate lovely
1:16 TRIGGERD
Matonias HAHA lol xD
ACCEPTED
Matonias I
Matonias
ACCEPTED
You got me 😆
You can have quiet brakes that suck. Or you can have noisy brakes that perform. Pick one.
Michael Tran I’ll choose no brakes
I Choose the ones that Do have Both !!! ! !!! or if there aren't, than i make ones !!! ! !!! But, ... it lasts a few years of building such ones now :-/ And if it work 4 some time, than i change the pads, and it squeals again . 6 Diferent manufacturers , and they still start 2 squeal at new pads ... :-/
there is no science behind carbon-ceramics being better on streets from non-carbon-ceramics, not at stopping distance
Or or or breaks that work and don’t sound like need new breaks and scare people around u.
How make a quiet brakes with good performance instead?
This was awful with working at BMW. The daddy money kids would drop $90,000 on an M car and they were in every Saturday with a “brake noise issue”. They INSIST on getting the “cool yellow ceramic brakes” but ignored us every time to would reiterate these are not going to be what you want
Happens at work - people complain that their big 'm' breaks sweal all the time service or sick of telling them its just due to size of breaks nothing can be done unless you get smaller breaks.
I'm one of them not daddy money though that shit is annoy not able to have windows down
Jamar Walter brake squeal doesn't mean u can't put ur windows down, they're not connected or anything lmao
Even worse are the parents who get X5 Ms to haul their kids around. WHY.
@@koolteskip Im that parent lol 😂
I like how they spent thousands of dollars making a four minute video just to say "It's normal."
If Porsche's anything like Land Rover (I work at LR dealership), we have a mass amount of customers "complain" that their expensive premium cars should not have brake squeal. And for some stupid reason, we replace them for free under warranty. So spending a few thousand on this video, just so their staff can shove it in the stupid customer's face every time they complain... worth it.
I used to work at an Audi dealer so on all the S or RS floor or near the building models I would write with a window marker
"performance
brakes squeal
we will NOT
replace them
with other brakes"
if any one ame in asking about brakes id point to the windows
When guys come in with their Subaru STI complaining about their Brembo brakes squealing = "it normal". Should of bought a WRX instead. Every manufacturer I'm sure deals with this topic on performance cars - nice job Porsche for putting this together.
Big performance brakes have been prone to this sort of noise for DECADES now. It's not normally a problem if you use them hard from time to time but too many posers sitting in traffic don't get the concept and get annoyed that their 'expensive personal image enhancement object' makes noise and they can't hear their incoming text messages. ;-) Try three hard stops from 70-80 mph (on a clear road obviously) and see if they don't quiet down for a while. Get some heat into the rotors and clear off some of that pad material you've built up while posing in traffic. Once they cool down spray them down to clean the excess brake dust. In many cases that brake noise is merely a cry for help... your Porsche has become bored with your Buick-like driving traits.
Savage commentary. Salute.
Amen
Or not a poser, they should maybe say as they are selling you a car. Oh every time you use your brakes it will do this. My other 4 911 did not do this. My Ducati does not do this.
@@benweiss7636 High performance brakes squeal when they are not being used as they should, which is hard braking. Period. This is well known since disc brakes' first beginnings in motorsport that goes all the way back to the early 50s. Any buyer capable and presumably enthusiastic enough to buy a Porsche or any other supercar that doesn't get this is straight up ignorant. The 911 user driving with carboceramics doing casual driving while complaining about brake squeal is indeed a poser that will never understand you need to drive and break hard in order to create proper heat so brakes can function properly.
Not only that, Porsche is one of the few manufacturers that doesn't rely on third parties when it comes to braking technology, it's all made in house, which allow them to improve tremendously in relatively short time. Take the brakes from a 997 GT3 and a 991 GT3 and compare. Miles apart. Sorry sir, you are still a poser.
Doesn't work, re-done the full bed-in procedure with 50 stops, it quiet down for like half a day and then back to being 30 yr old night bus at 4am in your neighborhood. They should not sell this as a street car without a fat red disclaimer you get x % chance yours will be the one that squeal, badly.
I love all the footage of older Porsche models used in this video, especially that black 991.1 C4S and the beautifully sounding CGT.
"older" haha....
i liked the air cooled classics :) they even did a huge shot of them
I agree, Zac!! The CGT has no equal when it comes to the sound of the exhaust! (although the Lexus LFA is pretty close...)
Not to denigrate your other videos but this is, to me, the best video this channel has ever had.
Yeah, there's something about this video that makes it really special, whether that's the cinematography, voice over or the explanation that's so quintessentially Porsche.
Thank you for explaining brake squeal. It's one thing I get constantly asked to fix for people, but they are the same people who think that a car enthusiast is a mechanic.
Had the sequel at first on my GTS, went away after a hard drive, never came back.
We are Porsche. We make some of purest fastest sports cars in the world. We have a team of highly paid engineers that have been trying for decades to remove break squeal. It's never going to happen.. Well never say never. How about this when we solve it you'll be the first to know. In closing it's your state of mind. The squealing is a feature of high performance. True petrol heads know this and love the sound almost as much as they love the sounds of our engine . Drive this for a few more years and you'll come to miss this sound when we go fully electric. Porsche.... There is no substitute.
unless you'd like a nice quiet asbestos and to sit in a convertible in stop and go traffic exposing yourself to brake dust?
'3:35 delivering uncompromised safety...' *shows a Carrera GT*
Marlin Jojo he died because they did 90mph on 10 year old expired performance tires. Ive used expired tires before, its like driving on a skating rink and the tires are hard and brittle
thats funny actually funny best paul walker joke ive seen yet
I love the explanation now i can point folks to this video while stopping at a redlight.... oy
I'd grown used to the annoying sound of brake squeak from the large front rotors on my MB C450 AMG, which the MB dealer examined and found to be good. I remember driving a Ferrari 430 Scuderia at Exotics Racing, and hearing the same squeak. Then just the other day, an Audi R8 pulled up beside me, and exhibited the same squeak. After seeing this video, I now consider myself to be proudly driving a car with large (and powerful) front rotors. Thanks, Porsche.
Listen Porche, if that is your real name, to make it on this youtube thing you need inflamatory titles ,absurd thumbnails, and a parteon account for all the donations. ( yes I am joking put down the pitch forks)
1:15 Very nice resonance frequency test setup with automatic modal hammer and an older laser vibrometer 👍
Using a similiar (newer) setup for acoustic material testing and measuring natural frequency of components in end of line tests.
"You're not holding your Porsche correctly." -Steve Jobs
Porsche : brake squeal is unequivocal standard
Steve jobs : you’re using it wrong
Porsche introducing the worlds first high performance squeal.
"You just have to force the squeal as a standard on all platforms, the client will just have to learn to like it"
Agreed......... THERE IS NO SUBSTITUTE !
underrated video :|
Proof that just because you have the means to obtain something it doesn't mean you understand the thing OR use the thing for what it was designed.....
Hands down, the best technical video out by a manufacturer.
Indeed, there is no substitute. I will lead a life with no car till that Porsche piggy bank hits that required amount to own one.
lets keep the likes at 911
3:13
RIP
The LEGEND
thanks for that. i replayed that part like 20 times
I love the way it has been explained!! Just amazing! 👌
When your overpriced status symbol squeals like a delivery truck...Porsche...
Porsche not only make great cars but good videos too!!
Brake squeal doesn’t belong on SUVs that travel in urban areas and around people. My Macan squeals terribly. This is awful for people’s ears, especially kids. How can I get the brakes to stop squealing?? I have tried many hard stops from 70-20 mph.
Well when people pay premium for a product they tend to expect near perfection. Brake squeals tend to be associated with cheap or faulty so when it occurs in a such a luxurious vehicle, concerns are definitely raised hence the complains
Love my Cayman GT4 brake squeal 😎
That's true but when driving around town there is no need to abuse the brakes and reduce the pads lifetime just because
All true mine are steel rotors though , the car is a beast after the engine is completely broken in which I felt after 3500-4000 miles, Do you have COBB tuning ?
How do you get it neutral? It comes built from Poland in the neutral settings (middle hole on front and rear sway bars). Got the Cobb, but wasn't noticeable until I put the IPD and Fabspeed race headers and custom Cobb tune from Fabspeed
Thank you for explaining this. I had squeal after a front rotor change on my Boxster GTS.
My other Porsches don't have squeal noise except the new 2018 Cayman S. It is very annoying especially when it is cold. Awful!!
"We are incapable of getting rid of that squeal no matter what we do"
So it was easier to make a video about it instead
They're German, It's what they do.
"......Without compromising its performance"
Yeah, obviously. Bad construction ... :-(
Germans: how can we be wrong, we are German?
Just enjoy your car and ignore that squealing from the brakes. You have performance brakes for a reason.
Imagine having a Porsche that screams beautiful at 9000 RPM and being upset because his powerful brake squeals...
PORSCHE JUST BE HONEST AND SAAAAY - WE TECHNOLOGICALLY CANT FIX THE SQUEAL! Buttering customers up! Smh
I look fwd to driving but not the squeals…EEEeeek😬
Call Exxon Mobil, they can formulate a heat-resistant polymer adhesive go on the back of the pad to cushion it from the caliper pistons for your American customers. Mercedes solved it by MAKING THEM squeal but at a frequency that humans cant hear.
EVERY high performance brake I have ever used squeaked some, especially at low speed when they were cold
This is the classic "it's not a bug, it's a feature" 🤣 i guess they don't want to spend millions doing brake recalls and warranty for squealing
This video summed up:
You bought the fastest car, it can stop the fastest. Stop-go traffic noise reduction was the wrong end of the compromise scale for this car, so you have to live with your choices.
Summary Summed up:
Because Racecar
I have three Porsche. I just fucking love this brand. Their performance, profession, passionate, etc. I want work for Porsche so bad!
Some people are bewildered why they would make this video. It's quite simple. Porsche makes an amazing product. People think that the product is flawed due to the noise when it is totally normal. If a mechanic or someone else in the dealership informs them, customers might believe that they do not want to replace the faulty brakes. When Porsche puts out a video, it tends to make things better. Plus, they don't want to tie up dealerships into fixing a problem that does not exist. Real-world and funny example: My girlfriend rode in my brand new GTS and said "for all the money you spent on this car, you'd think they'd make it quieter". Unreal. Lol. Not my girlfriend anymore :)
Sorry buddy but brakes from almost every other brand do not squeal until you get to the track cars. That’s like saying only Porsche makes decent brakes. Not true.
My cayenne squeaks a ton...but I live in Florida so I'd imagine that has something to do with it. They still have stellar performance though
Wow!! I'm really starting to believe in Porsche. Maybe I will own one some day.
I hope to make the Mission E my first Porsche.
You won't regret it!
Starting? So up until now you didn't believe in them?
Mike, I must say I didn't. About 20 year's ago I test drove a 911 black on black it was gorgeous!!! I think my love relationship is somehow returning. I'm thinking GT3 black on black manual.
Oh these cars have come a long way in 20 years. Much more refined and civil enough daily driving, not to mention crazy performance. And your thinkin a blacked out GT3 with a manual trans? You lookin for a boyfriend?? lol
This explains why EVERY video of the Aston Martin Vulcan I see it is screaming when people are driving it. This was a much needed video! Really helped me understand :)
I keep the noise down by putting brake grease on the contacting surfaces on the rear of the pads, and I spray some wd-40 to the face of the rotors. It keeps the noise significantly down.
You're welcome. 👍🏻
I came here from a mercedes video about their c63 amg, they said brake squeal was a featured characteristic of their car
Please don't get rid of this squeal, it must remain an important part of the racing or driving experience of a Porsche car !
The cars sounds like shit with this sound. Same with new bmws
THERE IS NO SUBSTITUTE!
the best or nithing, bmw
Actually there are plenty of substitutes.
Doesnt the material comprising the brake pads cause squealing too?
Ceramic pads are notorious for squealing and I assume Porsche is using ceramic pads on their high performance cars.
Simple. Don't drive something that's a borderline racecar and complain about brake noise.
Porsche is an SUV manufacturer primarily. They are definitely not race cars, or even sports cars.
Bs. I have a new Macan Turbo and it sounds like a semi truck. I’m trading the sob because I can’t stand the high screeching sound. The dealer has acknowledged the issue and worked on it twice and still sounds terrible. And don’t give the “performance ceramic” Excuse. I have a garage full of exotics with bigger breaks and they don’t sound like this.
Seriously, I’m about to ditch mine for the same reason. I’m so sick of blasting pedestrians with this nails on a chalkboard squealing sound.
@@cadriver2570 u know what the dealer did was they had a letter sent to me from the engineering department in Germany. First of all it was a standard letter that they send everyone with this compliant. Second it was a total bs that the sound is normal. I told them this is not my first high performance car intact their own 911 turbos don’t make this sound. Still after repeated attempts to correct it they said there is nothing more they can do. I sold mine after 10 months and bought a Jaguar I-Pace which performs even a little better than the Macau turbo with torque-vectoring and 512 lbs of instant torque.
@@bakhteria Wow, that is total BS. The Macan stops in about 10 feet earlier than an M40i. I would gladly trade 10 feet to not burn out my eardrums. I have also not heard this from any of their Taycans.
I-Pace is a smart move. Super quiet, better powertrain, costs virtually nothing to charge compared to gas. I test drove one a while back and it was a lot of fun. Has yours been generally problem-free?
@@cadriver2570 so far so good. Apple play is hit and miss. But that may b more in apple’s part than the car. But love the off line take off.
Of course this ad is by Porsche North America because Americans are the only people who would whine about this without looking up why it might be happening
another yurpy who has the benefit of the metric system to cancel out brake squeal.
So Europeans are fine with this nails on a chalkboard noise pollution?
Great explanation, however, most of the brake squeal can be resolved by blasting away any accumulated brake dust generated by the pads, with pressurized water. Happens to me all the time.
My used 90s honda i bought brakes dont squeal
A benefit of my age is that some brake squeal is outside of what I can hear...but it drives my kids crazy. #dadfun
LPT: Use Gasoline to reduce brake squeals and have smoother braking!
Porsche didn't say anything about putting grease on the back of the pads. If you are doing that, stop.
More videos like this, please.
Squeal in Porsche speak is a 'Noise Event' hahaha.
THANK. YOU.! If only I can show this to customers at the Land Rover dealer I work at. Your high performance Brembo brakes are SUPPOSE to squeal!!
He makes squeeky breaks sooo cool
Best brakes in the world (in mamy test Those are the best)
People complain about squeeeking
I never image the day in wich a German company make excuses instead of fixing the problem. I never hear an Aston Martin, Lamborghini or Ferrari make those noise. So... 🙄
Because racecar. Love u Porsche.
Brake squeal off your P-car is a sign of life :)
Hey Porsche, here is a amateur photograher and i was just wondering where can i find some really heavy used brake disks. For a long time I had this idear in my mind to take a macro picture of some really heavily used brakes disk. I wand a picture that express the amazing force cause by braking. Wish you all the best!
Any dealer or workshop....?
i tried some time ago, i have to try harder :) thx
Maybe a racing team or dealerships. Dumpster dive behind a ferrari service shop lol
I’m sorry but I can buy a Ford Focus and they don’t Squeal. My Macan Turbo does and am told by Porsche Sutton Coldfield that all you can do is live with it. Not really acceptable is it, you spend £100’000 on a car and the brakes squeal, your not told that when your buying it, they must just be hoping it doesn’t.
High end Porsche sports car use Brembo brakes with Brembo pads similar to that of there sp compound in the aftermarket world that have there formula of sinter material in them to be able to achieve high friction durability and high operational temp limit sinter means there metallic material in the pads so you basically have metal composite pads scraping with cast iron metal rotor squeaking is inevitable my GR Supra for example when I change to mx72+ pads they squeak abit more and dust a little brown there semi metallic pads but they sure bite hard and super fade resistant.
That's NONSENSE. it's your defect !! All other prestigious cars have ZERO noise 🙄 😒
hummmm, ford, chevy, lexus, infiniti, corvette, never ever squeaked...not buying it...
Maybe in the future install a noise canceller to be put in near the brake ..
Racing brake....
If u cant stand with porsche, buy tesla... porsche for the real car enthusiast
As a ford and Holden owner I'm used to this
This is why I love porsche they look good and perfom amazing
You should put more those squeeking sounds in video, and less commercial i am telling you story, bla bla bla.
What does it mean when you hear a slight brembo brake squeak when turning right, and not braking?
And yet I feel that, as an engineer, I could figure this out, especially with a budget the size Porsche affords.
This was filmed at PECATL!
They got so annoyed they had to make a video about it
Some squealing is invariable.....Pans to footage of a older women looking a bit scared/excited. More than capable.....Pans to a black man..... Hey porsche are you playing a bit of subliminal messaging stereotyping in your video? :)
Every used vehicle I have ever owned has had squeaky brakes. It's now usually a remembrance of my life long poverty level. Kind of like, "Don't ever expect not to have squeaky brakes in any car you will ever own".
I just bought my newest, most expensive car ever-$2016 for $16.2K....BRAKES SQUEAK!!!
They bring Porsche Brake Design Engineer to talk about outsourced Brembo Carbon Ceramic breaks
1:47 The Engineer: "We try to avoid brake squeal at any time, this is quite clear. This is our engineering goal"
bro, you're failing at your own goal
What a load of nonsense. Not that what they said isn't true, because it is when there truly is "No Compromise" performance, but the average brake system shouldn't squeal, even if we're talking about a 911 Turbo. The average buyer of their cars is dentist who'll never track his car or use his brake system to it fullest potentiality and Porsche knows this. They have no car in production that is truly "No Compromise" in terms of performance. They're just trying avoid warranty claims.
Bahaha pure PR vid. See most are wemen in this vid?
If your breaks squeal its because your'e not driving hard enough and therefore not breaking hard enough to wear off pad build up. These breaks are not made for driving conservatively. When your'e blasting down the autobahn at 295km/h and have to break hard because some idiot changed lanes without looking, trust me you will be very happy you have beefy Porsche breaks.
Yeahhh, adding a flat piece of metal doesn't do anything. I'm guessing their engineers probably haven't tried different geometric pieces other than a flat one. I hit my flat piece of metal on my Mustang breaks with a hammer to disrupt the low resonating frequency. But I live in Texas and heat and humidity are the factor here. Also, Porche owners usually are entitled pricks and I can definitely see why they would complain on something as simple as this. But hey, what do I know. I'm just a senior in MFGE lol
Basically the worst solution to address whining Porsche customers about brake squeal was to create a video like this. If you are not a trained mechanic and hear strange noises coming from there, don't hesitate: go and have it checked with your dealer or a trained mechanic. Even if you are a Porsche customer (especially if you are a Porsche customer)! How can an average Snob Joe differentiate between innocent vibrations and say a loose brake caliper? Nohow!
To those Porsche owners like me, stop complaining! Even my Lamborghini Murcielago is making noise.
My daughters white pscb porsche cayenne brakes squeal without even being applied.
Porsche: "Mr. movie maker, here is 700 hours of footage and sixty three dollars. Make a film about brake squeal." *4000 jump-cuts later*
"The g-force generated release of maximum tourqe" ... I think what you are trying to say is - wheelspin.
I see that Porsche's customer base is losing a lot of their high-performance drivers. It's simple, high-performance brakes have a tendency to make noise every so often. Any braking system that is absolutely quiet is most likely not going to perform under the most rigorous conditions.
Please make a video explaining why there is a sound coming out of the exhaust pipes. Can you get rid of the vroom vroom noise?