BRAKE (irritating sound)

[rt4ouredz]

Hi all

driving '05 E90
after changing brand new OEM rotors, brake pad, sensor (both front & back).
but i did not bleed the hose.
the irritating sound still there, dunno how to explain how is sound like.
when brake and release brake also have the "crock" sound.
the whole braking feel is NOT smooth at all!!!
should i go back to the workshop?
any kind soul can help?

additional, i realise when i brake and slow down my ride, i heard so empty "howling" sound, issit from the type or wheel bearing or any related?
using 19" breyton with CSC3

 

[kenntona]

Re: BRAKE (irritating sound)

should i go back to the workshop? any kind soul can help?

Could be poor bedding. Drive for a week or two and the noises should be gone.

Else, SOP answer - drive back to the workshop and diagnose.

 

[Red_Bean_Bun]

Re: BRAKE (irritating sound)

Did you bed in your brake pads ?

 

[tomace]

Re: BRAKE (irritating sound)

Did yur ws mech skim e edges of e brake pads, apply grease behind e pads during replacement?

Go back n let them know.cheers..

 

[rt4ouredz]

Re: BRAKE (irritating sound)

seriously they didnt!!!!

 

[wt_know]

Re: BRAKE (irritating sound)

i just changed my rear oem brake pad too but still using old rotors. so far so good. no sound whatsoever
i'm not sure whether workshop bed the pad.
do they drive + jam brake several times or use tool to bed the pad?
is it a must for workshop (sop) to bed in the pad or just install and drive 1 week+ ... the pad is bed in "naturally"

 

[pengful]

Re: BRAKE (irritating sound)

Hi all

driving '05 E90
after changing brand new OEM rotors, brake pad, sensor (both front & back).
but i did not bleed the hose.
the irritating sound still there, dunno how to explain how is sound like.
when brake and release brake also have the "crock" sound.
the whole braking feel is NOT smooth at all!!!
should i go back to the workshop?
any kind soul can help?

additional, i realise when i brake and slow down my ride, i heard so empty "howling" sound, issit from the type or wheel bearing or any related?
using 19" breyton with CSC3

Take it back and get the mech to drive it to hear for themselves. It is either they used the wrong brakes pads or they did not install correctly. I also just had my rear rotors and pads replaced and had none of what you described.

 

[rt4ouredz]

Re: BRAKE (irritating sound)

pengful can share where u did it?
I went back they tell me its normal...
wtf...

 

[nhc]

Re: BRAKE (irritating sound)

Hi all

driving '05 E90
after changing brand new OEM rotors, brake pad, sensor (both front & back).
but i did not bleed the hose.
the irritating sound still there, dunno how to explain how is sound like.
when brake and release brake also have the "crock" sound.
the whole braking feel is NOT smooth at all!!!
should i go back to the workshop?
any kind soul can help?

additional, i realise when i brake and slow down my ride, i heard so empty "howling" sound, issit from the type or wheel bearing or any related?
using 19" breyton with CSC3

You mentioned OEM Brakes . Did the workshop put on TRW brake pads for you ? If its TRW, its gotta be the crappiest brakes around. It squeaks/squeals almost immediately after putting on .

 

[REND]

Re: BRAKE (irritating sound)

Hi all

driving '05 E90
after changing brand new OEM rotors, brake pad, sensor (both front & back).
but i did not bleed the hose.
the irritating sound still there, dunno how to explain how is sound like.
when brake and release brake also have the "crock" sound.
the whole braking feel is NOT smooth at all!!!
should i go back to the workshop?
any kind soul can help?

additional, i realise when i brake and slow down my ride, i heard so empty "howling" sound, issit from the type or wheel bearing or any related?
using 19" breyton with CSC3

Bro i had the same problem recently and problem is with the rotor which the ws skimmed it for me and after that, it went on smooth without the howling sound anymore.

 

[kenntona]

Re: BRAKE (irritating sound)

Bro i had the same problem recently and problem is with the rotor which the ws skimmed it for me and after that, it went on smooth without the howling sound anymore.

NEW rotors need to be skimmed ? Which workshop?

 

[REND]

Re: BRAKE (irritating sound)

NEW rotors need to be skimmed ? Which workshop?

I asked the same question too bro and was said some times it happens. Sent to one of the ws at euros for skimming as not ws has skimming svcs

 

[kenntona]

Re: BRAKE (irritating sound)

I asked the same question too bro and was said some times it happens. Sent to one of the ws at euros for skimming as not ws has skimming svcs

Nonsense. You do a proper bed-in on the new rotors, then over time you will realise if you need them to be skimmed.

 

[REND]

Re: BRAKE (irritating sound)

Bro me newbie to this leh so since it work after skimming then take it as its the rotor lol

 

[seanskye]

Re: BRAKE (irritating sound)

Bro me newbie to this leh so since it work after skimming then take it as its the rotor lol

This is what they do to your rotors. Usually for the (old) rotors with surfaces that are slightly uneven.

[video=youtube;LlvH03IBHb0]http://www.youtube.com/watch?v=LlvH03IBHb0[/video]

 

[Francio]

Re: BRAKE (irritating sound)

Bro, brake noise due to OEM.. Brake pad size unmatched, even you apply tick grease on in between brake pad and caliper it'll just temporary soften the noise,, it very irritating on my previous E90 as well... Ended up I gave up and send to Munich to replaced original parts and problem solved. I swear will never bring my ride to outside workshop ever again! Because most of them will tell u ' Boss cheap n saving $ is like that 1 la' !!!! Save not much and yet created uncomforted myself !!

As for the noise most likely wheel bearing worm, bring to Munich to get it check, they are very professional and I would said Fast, Accurate, reasonable price n superb customer car!! What else better then 1 year warranty on workmanship 2 years Warranty on Parts???

 

[jinooi]

Re: BRAKE (irritating sound)

You mentioned OEM Brakes . Did the workshop put on TRW brake pads for you ? If its TRW, its gotta be the crappiest brakes around. It squeaks/squeals almost immediately after putting on .

all brakes will have to be properly bedded-in, regardless whether you change the pads or the rotors. otherwise they will squeal.

for more information, pls read http://www.bmw-sg.com/forums/suspension-brake-tyres-rims-section/33263-squealing-brakes-such.html

Bro i had the same problem recently and problem is with the rotor which the ws skimmed it for me and after that, it went on smooth without the howling sound anymore.

congratulations! you have effectively reduced the thickness of your rotor, i.e. shortened its lifespan.

I asked the same question too bro and was said some times it happens. Sent to one of the ws at euros for skimming as not ws has skimming svcs

asked who? your workshop mechanic? should stop going to whichever workshop that is...

a lot of information is archived in this forum, posted by other members who will probably have encountered the same issues. all you have to do is search for it.

or you can send a PM to any of the Lau Jiao here and they will be more than glad to help (provided you buy them kopi after that).

Bro me newbie to this leh so since it work after skimming then take it as its the rotor lol

don't know - ask, and make sure you ask the right people.

but at least make an effort to find out on your own first.

 

[jinooi]

Re: BRAKE (irritating sound)

1. brake noise is not due to OEM parts. it can be a multitude of reasons, but most oftern due to brakes not properly bedded-in. pls see my previous post above.

2. the fact that your previous workshop is incompetent does not mean MA is good. i'm very glad you found MA good. to each his own.

3. a little knowledge is dangerous. i'm impressed at how you can arrive at the conclusion that the wheel bearings are worn, just from reading this thread.

4. are you from MA? really hard-sell leh...

Bro, brake noise due to OEM.. Brake pad size unmatched, even you apply tick grease on in between brake pad and caliper it'll just temporary soften the noise,, it very irritating on my previous E90 as well... Ended up I gave up and send to Munich to replaced original parts and problem solved. I swear will never bring my ride to outside workshop ever again! Because most of them will tell u ' Boss cheap n saving $ is like that 1 la' !!!! Save not much and yet created uncomforted myself !!

As for the noise most likely wheel bearing worm, bring to Munich to get it check, they are very professional and I would said Fast, Accurate, reasonable price n superb customer car!! What else better then 1 year warranty on workmanship 2 years Warranty on Parts???

 

[REND]

Re: BRAKE (irritating sound)

This is what they do to your rotors. Usually for the (old) rotors with surfaces that are slightly uneven.

[video=youtube;LlvH03IBHb0]http://www.youtube.com/watch?v=LlvH03IBHb0[/video]

Thanks bro for the info.

 

[REND]

Re: BRAKE (irritating sound)

all brakes will have to be properly bedded-in, regardless whether you change the pads or the rotors. otherwise they will squeal.

for more information, pls read http://www.bmw-sg.com/forums/suspension-brake-tyres-rims-section/33263-squealing-brakes-such.html



congratulations! you have effectively reduced the thickness of your rotor, i.e. shortened its lifespan.



asked who? your workshop mechanic? should stop going to whichever workshop that is...

a lot of information is archived in this forum, posted by other members who will probably have encountered the same issues. all you have to do is search for it.

or you can send a PM to any of the Lau Jiao here and they will be more than glad to help (provided you buy them kopi after that).



don't know - ask, and make sure you ask the right people.

but at least make an effort to find out on your own first.

yup. i have stopped going to the ws.