So I've had my X MR for almost a month now. It only has ~1500 miles and has not been driven hard yet (!!!!). Well about 2 weeks ago I started to hear my brakes squeak when coming to a stop. Now it dosn't squeak all the way, only on that last foot or 2 before stopping. This is also on either hard braking or very light braking, dosn't matter; speed also didn't matter. Also the squeak is not just a little minor squeak, its a full blown screech that can be clearly heard inside the car with audio/windows up.

Now I know everyone here is going to say to take it to the stealership. But the issue is that it dosn't happen all the time.

Happens:
90%-when its cold out
Dosn't happen if its cold and the brakes are wet (wtf???)
50%- on the first couple of stops once the car is started
Dosn't happen as loud if I didn't use the E-brake to park
Rarelly happens when its hot

Now is it just a known fact that the breaks will squeak when cold?? I haven't had any problems with the brakes beign wet and it being cold so I don't get it. I live in West Tx were there is a lot of dust, could it be some dust stuck in there??? (Sadly I have to park the car outside)

Any insight or remarks are appreciated!

 

Everyone gets it, you're not alone.

You *might* take it to a dealer, but they'll likely tell you the same thing.

 

yeah mines does it too and it seems like it's coming from rear. I am going to change them all and see what happens

 

it's been covered before,
here, here, and here.

Also,recommendations made here

Long story short, that's how it is with the OEM pads. There are plenty of pads out there that will peform at or above the OEM ones with less dust and less noise
And, unlike some other people I've seen on here, I won't be a a$$, but I did find all of the linked threads by searching for "brake" within this forum

 

Yep mine always squeeked. After some hard driving in Chicago they went from squeeling to Screaching! Plenty of pad life but the heat killed the organic material in them and they started getting REALLY noisy. Toll booth people were cringing. I went to a Satisfied GS5 pad which is their aggressive street/mild track pad. Awesome pads. Stop like stock when cold, bite hard when warmed up and have withstood plenty of abuse from me that would have completely killed the stock pads. For guys that aren't as rough as I am they cn use a GS6 pad and be completely fine. NO squeeling ever and even solved the brake dust problem! Outstanding!

 

Damn didn't try searching b4 posting. I'm a newb lol.

About those GS5 pads. Will they fit the Brembo's on the X MR?? Same for GS6 pads, will they fit??

 

the brakes on the front of the X are the same as on the VIII and IX. They are "1001" brake pads, so GS5/GS6 1001 pads will work on the X.

 

Those sound like a good candidate for what I'm looking for. Where'd you pick them up at and how much? Thanks.


No worries, I try to be as helpful as I can (on most days )

 

I did talk to my dealer (while he was doing the first oil change), he said its really because of sports brakes. Thats how the rotors and calipers sound when braking lightly, it's 'high performance' etc etc.
I've heard that on other sports cars aswell though, Lexus IS etc.

 

In a seance the dealer is right. Most cars have a standard caged caliper which has a damper in it because there are only pistons on one side. EVOs have a fixed Brembo caliper which has no dampers.

The squeaking you are hearing is the pads itself vibrating as it makes contact with the rotor and the vibration is resonating though the caliper and making the noise.

There are many factors that make this vibration occur, a cretin amount of brake pressure, the pad material, poor fitment of the pad, etc...

There are many pads that have special anti-noise shims to help eliminate this vibration but its never a guarantee because every car is different. and ever rotor surface is different as well.

If you think of it as vibration it can help you determine what you need to do to get rid of it. If your rotor is grooved and shinny then you can assume that the rotor surface is not uniform and the pads have glazed over. This will make the it harder for the pad to dig into the rotor to apply friction so it will "skip" across the surface and you have vibration. You can try sanding your rotors and pads with some 120g sand paper to give the pad a fresh surface to dig into. If your rotors are really bad then having them turned or replacing them would be the next option. If you replace your rotors or have them turned make sure to look at your pads, if there are uneven ware marks have the pad cut flat or replace it. If you install an uneven pad the pad will ware the rotor unevenly and you will have the same marks in your new or turned set as you did in your old ones.

If you rotor looks fine and its still making noise look at the caliper and make sure its secure, also check to make sure the pad is fitting snug inside the caliper. If it is loose then the play in the caliper will promot the pad to jump around in the caliper body and make noise. Some pad makers use a laser to cut out their backing plates and thats the best way but some just press the shape out and sometime the backing plate can be a little to small or instead of a flat edge on the side it looks more like a pinch to the pad isn't seating into the caliper proporly. You can grind the sides of the pad flat to help it fit better but not to much or it will be to loose in the caliper body.

You can also dampen the place where the pad contacts the caliper with anti-squeal goo and this will help get rid of the play in the pad. Make sure to put it on the sides of the pad where is runs inside the caliper because that is where most of the vribration will come from. You can also use an anti noise shim which unlike the thin metal tab found on the stock pads it is a larger thicker piece with a teflon coating on both sides to help the pad basically stick that pad to the caliper piston and eliminate play.

There are many pads out there that will squeak no matter what you do. But there are also others that should squeak but don't for years and its all based on the these factors. Every car is different so you need to look at it that way, look at your own brakes to determin whats making this vribration because what might squeak on your car might not squeak on another.

 

I have the Hawk HPS pads (they suck)... they make A LOT OF NOISE!!!!!!! A LOT!!!

 

Yeah I know those those pads are really hit or miss it seems in the Evo crowd and I think it has something to do with the backing plates. I have seen some that look laser cut so they are the right size and their edges are flat and clean, then others I have seen looked pressed and they are pinched on the sides so they look a little smaller and they have points on the side so they don't sit in the caliper correctly. I don't know if they have 2 suppliers for those pads but I believe the ones that love their pads get the laser cut pads and those that get the noisy pads are those that get the pressed pads.

There is so much demand for the HPS pads that it wouldn't surprise me if they had 2 suppliers to fill the demand.

 

Try TH Motorsports. They are a vendor on here. Good guys. They are in Chicago area if you guys are local.

As for the Hawk pads, I have never had good luck with them. At least their street compounds. Their race compounds are good if a bit hard on the rotors.

 

yeah my evo did that with the stock pads and rotors and they said its noramal but anyway i was getting pissed at the noise so i changed my rotors and pad and its fine now

 

Hi Guys !
I have a good question for all of you.

As you know, the car has a super-all wheel drive control. It's a intelligent control car. The car will control brakes, during hard braking (ABS) or turning fast (only the side you are turning in this case).

BUT, if you change the pad's brakes, it'll change the way its going to brake. If you have high performance brake, I guess it will brake more than it's supposed to. Don't you think the car may lose good ABS braking because it brakes too hard (on snow, dust) and may over turn during fast cornering ???

I'm looking for low dust pads but I don't trust it very well.

What is your experience about it ?