Discussion
king sSo I am wondering if anyone on here might be able to give me some thoughts on the brakes on my R. The squeal. And when I say they squeal I mean they really squeal. Now I know that a little noise from them while braking isn't unusual but in my case it's the whole time, brakes on or off (though it does stop when you brake moderately hard to hard). And it is properly loud. Porsche took off the pads and discs and cleaned and roughed them up and I was then careful to bed them in again but the noise has come back as bad or worse. When they are stone cold they usually are quiet and when I turn a little letter noise tends to stop - it's coming from both o/s brakes I think. Any ideas? Pads and discs have plenty life left and are genuine Porsche.
andy.yeow said:
Having a full detail to remove swirls in the paint and ceramic coat alloys, its towards the 2k mark but I feel worth it where I live as not so easy to clean here
WOW...that is serious chunk of money to lay out for a polish and wax.I must admit I'am a bit old fashioned when it comes to car cleaning I stick to the carnauba wax based products they have worked perfectly well for decades same for the polishes.
Please post some pics when your car has been done.
PaulD86 said:
So I am wondering if anyone on here might be able to give me some thoughts on the brakes on my R. The squeal. And when I say they squeal I mean they really squeal. Now I know that a little noise from them while braking isn't unusual but in my case it's the whole time, brakes on or off (though it does stop when you brake moderately hard to hard). And it is properly loud. Porsche took off the pads and discs and cleaned and roughed them up and I was then careful to bed them in again but the noise has come back as bad or worse. When they are stone cold they usually are quiet and when I turn a little letter noise tends to stop - it's coming from both o/s brakes I think. Any ideas? Pads and discs have plenty life left and are genuine Porsche.
Probably need stripped, cleaned, discs and pads deglazed.PaulD86 said:
So I am wondering if anyone on here might be able to give me some thoughts on the brakes on my R. The squeal. And when I say they squeal I mean they really squeal. Now I know that a little noise from them while braking isn't unusual but in my case it's the whole time, brakes on or off (though it does stop when you brake moderately hard to hard). And it is properly loud. Porsche took off the pads and discs and cleaned and roughed them up and I was then careful to bed them in again but the noise has come back as bad or worse. When they are stone cold they usually are quiet and when I turn a little letter noise tends to stop - it's coming from both o/s brakes I think. Any ideas? Pads and discs have plenty life left and are genuine Porsche.
If they squeal when they are off it could be a stone jammed between a disc and the backing plate. However if they took off all the discs and pads the stone would have dropped out.At a guess I'd say that the metal backing plate that fits into the caliper has come unstuck from the back of the pad. I had this and it was properly horrendous. The OPC couldn't find anything wrong 
Take the pads out and check that there is a metal plate with a couple of 'pins' stuck to the back of them. If not, there's your issue
Take the pads out and check that there is a metal plate with a couple of 'pins' stuck to the back of them. If not, there's your issue
worldwidewebs said:
At a guess I'd say that the metal backing plate that fits into the caliper has come unstuck from the back of the pad. I had this and it was properly horrendous. The OPC couldn't find anything wrong
Take the pads out and check that there is a metal plate with a couple of 'pins' stuck to the back of them. If not, there's your issue
I'll have a look thanks. If money wasn't currently a little tight I'd have just changed them all in the 1st place even though they aren't at thay stage of wear.Take the pads out and check that there is a metal plate with a couple of 'pins' stuck to the back of them. If not, there's your issue
On the Italian tune up side, I was on a road trip last week with my mate in his F-Type and after a week of Scotlands finest roads I can safely say the Italian tune up didn't fix it! haha
The brakes on my R squeal when cold too but hats because I'm running RS29 pads.
Personally I don't care that they squeak, just reminds me I've got proper pads in there.
You can chamfer the leading edges of the pads to reduce the resonance and squeal.
Are your pads OEM or aftermarket?
Personally I don't care that they squeak, just reminds me I've got proper pads in there.
You can chamfer the leading edges of the pads to reduce the resonance and squeal.
Are your pads OEM or aftermarket?
frayz said:
The brakes on my R squeal when cold too but hats because I'm running RS29 pads.
Personally I don't care that they squeak, just reminds me I've got proper pads in there.
You can chamfer the leading edges of the pads to reduce the resonance and squeal.
Are your pads OEM or aftermarket?
Pads are Porsche - as I'm keeping it in warranty everything is standard. A bit of squeal while braking I could deal with, a very loud squeal the whole time that only stops when you brake is less amusing. It's really quite properly loud.Personally I don't care that they squeak, just reminds me I've got proper pads in there.
You can chamfer the leading edges of the pads to reduce the resonance and squeal.
Are your pads OEM or aftermarket?
PaulD86 said:
frayz said:
The brakes on my R squeal when cold too but hats because I'm running RS29 pads.
Personally I don't care that they squeak, just reminds me I've got proper pads in there.
You can chamfer the leading edges of the pads to reduce the resonance and squeal.
Are your pads OEM or aftermarket?
Pads are Porsche - as I'm keeping it in warranty everything is standard. A bit of squeal while braking I could deal with, a very loud squeal the whole time that only stops when you brake is less amusing. It's really quite properly loud.Personally I don't care that they squeak, just reminds me I've got proper pads in there.
You can chamfer the leading edges of the pads to reduce the resonance and squeal.
Are your pads OEM or aftermarket?
ETA - to check for a binding handbrake shoe, let off the handbrake, put the car in neutral and see if you can push it backwards and forwards.
Edited by boxsey on Monday 10th October 15:55
PaulD86 said:
Pads are Porsche - as I'm keeping it in warranty everything is standard. A bit of squeal while braking I could deal with, a very loud squeal the whole time that only stops when you brake is less amusing. It's really quite properly loud.
Somethings not right then mate, since Porsche stripped and cleaned up the brakes take it back and let them fix it after all they are the top men allegedly.Just a little thing about OPC's and brakes, for any of the services they won't strip and clean the brakes they check them over without taking the wheels off, oh and I've caught them not bleeding the inside pistons on all four wheels as they need to take the wheels off to do this which eats into their time...pretty shoddy service for the thick end of £1200 don't you think.
Thanks for the replies. There is a little bit of 'drag' on the brakes - i.e. on a very gentle incline with the handbrake off the car will stat still where my Mondeo would start to roll. But it isn't massive and if I open the door and shove with my foot it moves easy enough.
The car is in for a service in a month so I will ask them to check the points raised.
Regarding trapped stones, I've had a good look and poke with various tools and can't see anything and as I said the brakes were off at Porsche so if it was that I'd have thought it would have been spotted or fallen out. I am wondering if when they rebleed the brakes at the service that may get something to sit differently and fix the problem but maybe that's wishful thinking.
Are the handbrake springs mentioned easy to see/check?
The car is in for a service in a month so I will ask them to check the points raised.
Regarding trapped stones, I've had a good look and poke with various tools and can't see anything and as I said the brakes were off at Porsche so if it was that I'd have thought it would have been spotted or fallen out. I am wondering if when they rebleed the brakes at the service that may get something to sit differently and fix the problem but maybe that's wishful thinking.
Are the handbrake springs mentioned easy to see/check?
PaulD86 said:
Are the handbrake springs mentioned easy to see/check?
To get to the retaining springs and handbrake shoes you need to remove the rear discs (which means removing the pads and the calipers). The shoes and springs are then inside the hub. So if the techs removed the discs, it would be completely obvious if a shoe was binding due to a broken spring. I think myself and Klippie are suspecting that while the techs say they took the brakes off, they probably didn't do much more than take out the pads and then 'clean' the discs while they were still on the car, because taking off each disc is a relatively long job.It would be worthwhile jacking up each corner and turning each wheel by hand. At least that way you could identify which wheel(s) is making the squealing and then ask them to properly investigate the problem.
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