Hi there, Im running PBR mettalics on my front 740GL. Now i've been told the squeaky sound caused by the mettalic pads which did not occur with the 'semi mettalic' oem that i used before. So the question is, how can i distinguish between the 'normal' squeak caused by my mettalic pads, as opposed to the squeak caused by a worn out pad as a sign for replacement?
Frank Vancouver, BC
In my limited experience, worn out pads, ie. metal to metal, is more of a grinding shriek, rather than a squeak. A visual check is the best diagnosis though.
Stuart.
From a point at sea, to the circles of your mind, this is Frank:
If you don't mind me saying, that's a dumb question. Brakes are THE most important thing on your car. They should be serviced and checked regularly without exception.
Make a proper, regular service schedule, and even if you skip on everything else, make sure the brakes get checked. This way you will never need to find out what the sound of a worn out pad is.
As Mr. Hargrave says - You don't want to hear the sound of a worn out pad more than once. Believe me. If you do, it's definately not a "squeak" See Above.
Stuart.
From a point at sea, to the circles of your mind, this is Frank:
Agreed, but if you ever hear this sound (a metal on metal grinding noise when you apply the brakes) it is already too late.
No, I don't buy it. If your pads wear out between services then the servicing was not done properly. The suggestion that a car which has been maintained with a proper service interval could still have worn out brake pads makes an absurdity of the schedual.
Pads should be replaced before they get anywhere near the metal backing. As per your original post, this sound is not a 'warning' that the pads need replacing, it is a warning that you need to change your service technician.
If the servicing is carried out properly it simply isn't an issue.
You seem to assume that problems won't occur between services. I agree that regular service will reduce car problems , but it does not eliminate it completely. Someone should not assume that their car is running problem free just because they serviced it last week or last month. Drivers should know if there is a problem. Most of the questions on this NG asks "why is this happening, or "what is this noise", or "how can I fix.... "
People are just trying to learn more so they can understand their car better, and not get ripped by their technicians. Not everyone has a trustworthy technician (yet) unfortunately. If you had to take your car in for every little strange noise you hear, you may get taken for a ride by the autoshop.... "You need a new Johnson rod" (George Costanza)
To the original poster: Metal pads usually squeak.. high pitched... If you have no pad left.. it will be grinding.... like grrrrrr.. really rough sound. So the sounds are entirely different. You know it's a problem when other drivers are giving you funny looks :)
My 850's pads have always squealed like pigs at low speed / light pressure. I just got used to it.
To reply, please remove one letter from each side of "@" Spammers are vermin. Please kill them.
on my 240 when the brakes STOPPED squeeling was when I need to replace them. I got new brakes and they now squeel. Do note, non oem parts. Probably rinky dinky. Installed by a non Volvo mechanic. Any way to make it stop? I've heard it's the shimms between the caliper? and the pad?
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