Why are my.....

[XFIVIN]

...brakes on my X5 makes noise when applying pressure? Any advise that can cure this would mostly be appreciated!

Regards

 

[tool fan]

What kind of noise, Squealing, whirring, whomp whomping. Could be a thousand things.

 

[Tom]

Also what year is your X5? I do believe brakes are covered under warranty.

 

[XFIVIN]

What kind of noise, Squealing, whirring, whomp whomping. Could be a thousand things.

Squealing noise.

 

[XFIVIN]

Also what year is your X5? I do believe brakes are covered under warranty.

My X5 is year 2001.

 

[epj3]

Squealing noise.

Probably just very dusty because they are stock pads! That could cause quite a bit of squealing.

 

[Militant-Grunt]

Its the pads.

In the ML I have sub competition pads, they squeel when they warm up to extreme temps.
Porterfield is a pretty good brand, they squeeled for the first two weeks, then when they set in they we're silent.

My brakes crunch sometimes, I have no idea why.

 

[epj3]

What is a "competition" pad? Do you mean track pads, or is it a brand?

 

[nadroj]

What is a "competition" pad? Do you mean track pads, or is it a brand?

lol track pads on an suv, they are probably just sport pads

 

[epj3]

lol track pads on an suv, they are probably just sport pads

Probably, because if he had track pads while racing and beating all those ferrari's and corvette's in the middle of the city, he would never be able to stop with cold brakes when the old woman ahead is crossing the street.

 

[Kirby]

Have they been serviced recently? If, so the tech may not have cleaned the caliper surfaces and used anti-squeal lube on them. When done correctly, the anti-squeal lube usually solves the problem.

 

[///M SPEED]

Have they been serviced recently? If, so the tech may not have cleaned the caliper surfaces and used anti-squeal lube on them. When done correctly, the anti-squeal lube usually solves the problem.

Good call Kirby, this is what I would look into if the brakes have been serviced recently. If they have not you may want to check the "pads" themselves checked out no matter the brand or type....

 

[epj3]

Kirby, what anti-squeal do you use? The orange stuff in the little bottle?

 

[Kirby]

I use GUNK.

 

[Militant-Grunt]

Probably, because if he had track pads while racing and beating all those ferrari's and corvette's in the middle of the city, he would never be able to stop with cold brakes when the old woman ahead is crossing the street.

lol asshole, they're "semi competition R4-S brake pads." Basically low dust emission and higher temperature ranges on the pads..

http://www.porterfield-brakes.com/

 

[epj3]

lol asshole, they're "semi competition R4-S brake pads." Basically low dust emission and higher temperature ranges on the pads..

http://www.porterfield-brakes.com/

Alright, but "competitoin pads" is a made up term.

 

[XFIVIN]

Have they been serviced recently? If, so the tech may not have cleaned the caliper surfaces and used anti-squeal lube on them. When done correctly, the anti-squeal lube usually solves the problem.

Thanks for the info...I'll get em checked out.

 

[jrt67ss350]

It's been my experience that most cars don't need the anti-squeal gunk if the calipers are sufficiently cleaned and the new pads have the appropriate original type shims attached (if applicable) before reassembly. Most cars don't come from the factory with the anti-squeal gunk applied to the back of the pads. The second most important factor is that the pads must be properly broken in.

I'm speaking from personal experience here as I used to run my own little kind of "business" in college servicing people's brakes.

 

[ThatOneGuy]

http://www.zeckhausen.com/bedding_in_brakes.htm

You're welcome.

 

[epj3]

"ThatOneGuy" has a great link. Used those to bed in the pads on my M3 and they rock.