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127K views 245 replies 106 participants last post by  staffj111  
#1 ·
Tried searching, but haven't found much.

As the title says my break squeal every time I break, does anyone have the same issue? Any recommendations?

Thanks in advance,
Andrey
 
#9 ·
#3 ·
Porsche brakes are known to squeal at cold temperatures. You have to get them up to operating temp before it goes away. Its the one disadvantage to having high performance brakes.

If they squeal ALL the time, even after braking getting off the expressway or other high speed road. You may need to re-bed the brakes in by completing a series of increasing speed hard stops with a few minutes in between to let them cool.
 
#6 ·
The majority of brake squealing is caused by harmonics occurring at the metal-to-metal contact points on the brake calipers. Examples include:

- Where the caliper pistons contact with the back of the brake pad
- Where retaining pins and spring clips contact each other, or the caliper
- The slide on a floating caliper
- Where the caliper bolts onto the spindle

The fix is generally to disassemble the caliper (but leaving the pistons intact); clean the metal-to-metal contact points to remove any rust; apply a thin film of high temperature anti-seize at all metal-to-metal contact points; and reassemble.

In rare cases, the surface of the rotor and/or the pads have become glazed, and switching pads & sanding the rotor face will help.....but again this is not common. Sometimes, changing to a different brake pad compound will also help, by moving the vibration frequency out of the harmonic zone.

Often, the biggest challenge to fixing squealing brakes is finding a mechanic that understands these fine points, and is willing to take the time to do the work properly. If your dealership can't seem to correct the problem, start looking around for a good independent Porsche shop.

Like that other thread said recently....It pays to have a "friend" in the business. :)
 
#8 ·
I too had this problem, and after a quick phone call to me SA, he told me the fix.

The solution is to do some hard braking...nothing crazy like going from 100-0, but just brake hard and sharp over the course of a few days and your squeal should disappear. Took me about 4 days of doing this about 5 times per day for the squeal to stop.
 
#10 ·
I too have periodic squealing. I noticed it occurs during the first 5 minutes of driving with gradual braking and then subsequently goes away. If I brake hard the squeal goes away. I started hearing it at 500 miles.
 
#11 ·
Add me to the list. I get an occasional squeal under light braking, just before coming to a stop.


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#12 ·
Add me to the list as well.

It's actually my biggest gripe with the car so far (2015 turbo) and is taking the enjoyment out of the car for me. I ordered a 2016 macan turbo and hoping it squeals less and that the first one was just worse than it should be.

There is no squeal in the first 5 to 10 minutes of driving no matter how I use the brakes. After the intial 10 minutes of driving the brakes start to squeal only when using the brakes lightly and at lower speeds (coming to a stop at a light etc). When braking hard it doesn't happen but I don't feel I should have to change my driving style and slam my brakes just so I don't get an embarassing squeal from my $100k+ turbo (canadian moneys).

I have tried bedding the brakes and perhaps need to do it a few more times. First time I tried this the squealing went away for a day then came back the next day. I understand these are high performance brakes and all but I see cars with high performance brakes every day not squealing. I had a 2014 cayman before this and not once in 6 months of soft or hard braking did it have any squeaks or squeals. Add to this the leaky rear nozzle and an unusual rattle from the exhaust (or undercarriage) and I am starting to question if I just got unlucky. Crossing my fingers that my 2016 has less issues.
 
#15 ·
It's actually my biggest gripe with the car so far (2015 turbo) and is taking the enjoyment out of the car for me.
Chronic break squealing is unacceptable. Take it in for warranty service. If your dealer cannot remedy it, go to another dealer. If there is no other dealer in your area, kick it up the Porsche chain of command.

You are quite correct that it has nothing to do with high performance brakes. In the areas I frequently commute, high performance cars with high performance brakes are a dime a dozen.....and like you, I never hear their brakes squeal.

Hope you get a quick resolution to all the items on your punch list. Good luck!

PS: I see that was your first post. Welcome to the group! Any pictures or details about your build you're willing to share would be welcome in our Introduction or Picture sub-forums.
 
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#14 ·
Had the squeal on my merc. It goes away after some use.
Drying the brakes hard after it rained helped.

Also, read in the macan manual that one should let the brakes cool before engaging the handbrake.
 
#16 ·
Oh God, is this another defect in the workmanship of Porsche with this particular model? I've yet to order, but reading this kind of stuff really frightens me. SoCalS5 is correct. Chronic brake squealing is unacceptable. It's a defect. The only justification for brake squeal is when the pads are severely worn, but that shouldn't happen for thousands of miles of hard driving and braking.
 
#17 ·
It's not a defect. These are large brakes with performance characteristics . That means that the pads and rotors rub together creating friction to the stop the car . This operate best when heated up (like on a racetrack). These cars can be tracked and this is normal equipment . However on an average day of 30 MPH city driving it might just squeal . Consider it as Porsches way of proclaiming its mighty stopping power much like a race exhaust announces that a car has some roaring potential.
 
#22 ·
by the way, (a bit off topic)

Here is what she looks like. I grabbed her off the lot until the one I really want comes in. This one is on springs with PASM for those wondering. SB wasn't even on my list but I do admit that it's a nicer color than I thought it would be and it looks very different depending on the lighting. My 2016 will be in carrera white though, with SD in black gloss, AS, etc...
 

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#24 ·
I've always welcomed a tiny bit of brake squeaks on my cars! If symmetrical it's a good sign everything is working well. You can hear the change as pedal pressure is applied and released and indicates the brake pistons or sliding surfaces are not sticking.


I'd only be worried if I heard squeaks with no brake pressure or excessive squeaks. As these cars are presumably undisturbed and on the first set of OEM pads by far the most likely culprit is the pad to disk surface and a good bed in procedure as suggested here might be enough to abrade or burn off the contamination?
 
#26 ·
K-A I agree with you on that, but I did have the first year Q3 in Canada here and it was absolutely perfect, mechanically and rattle/squeak/noise free. Very different car ofcourse, nowhere near the performance but easily the best bang for the buck in the crossover category. Audi did an amazing job with the engine and it felt just as quick off the line as a macan which is amazing considering the engine numbers (obviously slower to 60). Anyways, not to get too off topic but stuff like a leaky nozzle from a brand like porsche is not acceptable and should never be regardless of how many other major issues some other brand is having, it seems minor but it also shows a lack of quality control on a very basic level. Just my opinion, otherwise I love the car and brand. I hold porsche in high regard and I know many others do so I (and others) have a higher standard when it comes to stuff like this.
 
#27 ·
Took mine in today and did a ride along with the shop foreman. He agreed that the squeal was too much to be considered normal. He will be ordering new parts to replace the brakes under warranty at 8,700 miles. Will update once the work is done.


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#28 ·
Mine squealed for the first 2 weeks or so, and then it just quieted down, AND I have never done any bedding or braking hard or whatever. Just plain granny braking, and now 3 months later still good.

On the same note, I do notice less brake dust after the squealing has abated.....still a lot, but less
 
#30 · (Edited)
#31 ·
:eek: I found that if you Never use the brakes, there's no squeal.
 
#33 ·
Darn, when they were fixing my turbo vacuum leak they should've just put in the 3.6L.
 
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#34 ·
The only thing I get from Porsche is mailbox full of invitation for events I have no interest whatsoever, like Porsche classic cars tour, winter tire replacement program and other useless stuff...

PCNA know how to threat the customers.
 
#36 ·
Porsche of the Main Line in Pennsylvania.