Squeaky noise upon lifting handbrake/footbrake

[yrh0413]

My apologies for my question... may sound lame to some of you

 

Ok recently I got my 1st car, a preowned VW Polo. 3 years of age clocked 50k km.

So far smooth ride no judder (pray hard every day!).

 

One thing I notice... there's always a squeaky sound at the rear suspensions when I lift my foot from the brake pedals. It is audible in and outside of the car. It also happens when my rear passengers exits the car. The previous owner just changed the brake pads at 50k km (50k servicing at VSC, including the usual oil change + change brake pads + change all tyres).

 

Nothing major so far just feel annoyed with the squeaks... sometimes when I drive without turning on the radio it does sounds like I am driving an old tilam. Could it be because of the new brake pads being too grippy, or could it be something else?

[Watwheels]

This kinda squeaks from the rear are usually the bushing on the trailing arms/links. I dunno what type of suspension arm polo is using. You may try lubricating the bush but I rather replace the worn part.

 

A good way to track the squeak is to get a friend to help "bounce" the car while you track down the squeak.

[yrh0413]

This kinda squeaks from the rear are usually the bushing on the trailing arms/links. I dunno what type of suspension arm polo is using. You may try lubricating the bush but I rather replace the worn part.

 

A good way to track the squeak is to get a friend to help "bounce" the car while you track down the squeak.

 

thanks bro, is this a critical issue (replacement of bushings) that needs immediate remediation or I can still live with it until my next service cycle?

 

Any idea if this will be an expensive trip to the service center? :(

[Kippei]

It could be the moving part of the brake caliper have not been lubed.

[Watwheels]

 

thanks bro, is this a critical issue (replacement of bushings) that needs immediate remediation or I can still live with it until my next service cycle?

 

Any idea if this will be an expensive trip to the service center? :(

 

Not critical. Since it's a wear and tear part it's cheaper to be done at outside workshops. Why let the service center charge you at a higher price? Warranty do not cover wear & tear parts.

[flashbang]

Might be some suspension issue? Since you mentioned that it happens when rear passengers get out.

[Inlinefour]

Bro might be from the rear handbrake drum

 

Get the WS to open up to check...could be rusty liao

[Canlee]

Sorry to hijack this post. I recently experienced brake squealing when I applied my brakes. It squeals when I starts to drive and disappears after few brakes at traffic. It can still be heard when braking at slow speeds or reversing.

 

How can I get rid of the squealing brakes? I changed the rear drum shoe pads and my front disc pads are still serviceable...

 

Any ideas from fellow drivers here. Thank you in advance!

[Wacko]

Sorry to hijack this post. I recently experienced brake squealing when I applied my brakes. It squeals when I starts to drive and disappears after few brakes at traffic. It can still be heard when braking at slow speeds or reversing.

 

How can I get rid of the squealing brakes? I changed the rear drum shoe pads and my front disc pads are still serviceable...

 

Any ideas from fellow drivers here. Thank you in advance!

is the sound coming from the front, or the rear? if it's the front, how many km old are the front pads?

[Canlee]

My guess is the front pads as I hear the loudest from the front left. The brake pads are at least 60K in mileage...

 

The thickness is still above the min required and the squeals are not from the replacement shims in the brake pads which squeals without braking...

 

My rotors surfaces are smooth... Damm irritating to drive for the first few kilometers..

[Kb27]

Squealing is most often due to high frequency vibration when brake caliper and pads comes into contact.

 

You need to check if the backing shim on the pad is still there.

 

And apply anti-seize on the back of the pads such as this:

http://www.amazon.com/gp/product/B0018PSASU/

 

thanks bro, is this a critical issue (replacement of bushings) that needs immediate remediation or I can still live with it until my next service cycle?

 

Any idea if this will be an expensive trip to the service center? :(

 

Suspension noise may be due to leaky shock absorbers.

If it's coming from the rear, just change the rear shocks.

 

If you want a better ride regardless, just change all 4.

[Canlee]

Just did a search on the backing shims for brake pads. Wow... I don't remember seeing this on my front brake pads, btw my brake pads are cheap and done in old school wokshop. I should be able to see it from the outside?

 

Question:

Can I install just the shims only for the brake pads?

If I install new brake pads, does it comes with backing shims?

How can I apply the grease? Only on the rear on the brakepads? (i.e. surface of brake pad facing outside of wheel)

 

Thanks and I learnt something new today. The workshop said its normal and to live with it...

[Kb27]

Just did a search on the backing shims for brake pads. Wow... I don't remember seeing this on my front brake pads, btw my brake pads are cheap and done in old school wokshop. I should be able to see it from the outside?

 

Question:

Can I install just the shims only for the brake pads?

If I install new brake pads, does it comes with backing shims?

How can I apply the grease? Only on the rear on the brakepads? (i.e. surface of brake pad facing outside of wheel)

 

Thanks and I learnt something new today. The workshop said its normal and to live with it...

 

Usually, the backing shims come with the pads. It's a metal piece that clips on the pad at the back.

 

 

You won't be able to see it until you remove the pads from the caliper.

 

Then apply anti-seize on the shim and reassemble.

[Canlee]

Roger that!

 

I looked at my service manual and it seems that I need to torque the brake caliper nuts and wheel nuts..

I used to hand tightened the wheel nuts with spare tire tool... Scared I over torque them myself

 

Will go to another workshop to get my brakes pad greased or changed to new pads with shims.

 

 

[yrh0413]

An update on my end: I called VSC and spoke to the technician who changed my brake pads. He recommend I drive in and let him check.

 

Thanks for the advises from our bros here, I tried to put some pressure on all 4 sides of the car but cannot replicate the squeaky sound. Need to find time to drop by VSC for them to check.

 

[Wacko]

My guess is the front pads as I hear the loudest from the front left. The brake pads are at least 60K in mileage...

 

The thickness is still above the min required and the squeals are not from the replacement shims in the brake pads which squeals without braking...

 

My rotors surfaces are smooth... Damm irritating to drive for the first few kilometers..

the front brake pads are 60k km old and you don't want to change them? I am guessing you have already hit the mechanical wear indicator built into the pad, which is the cause of the squealing.

[Canlee]

Well, 60K km translates into 6 normal servicing I do not brake hard as a F1 driver and I do check the minimum thickness of the brake pads left against service manual.

 

The wear indicators on brake pads will squeal even if you do not step on the brakes and it will continue squealing even while driving... Mine situation is that the squealing disappears after few KMs, hence I ruled that out.

[Wacko]

Well, 60K km translates into 6 normal servicing I do not brake hard as a F1 driver and I do check the minimum thickness of the brake pads left against service manual.

 

The wear indicators on brake pads will squeal even if you do not step on the brakes and it will continue squealing even while driving... Mine situation is that the squealing disappears after few KMs, hence I ruled that out.

my first hand experiences of hitting the physical wear indicator is otherwise. there is definitely no squealing when brakes are not activated (how is this even logically possible otherwise?), and the squealing can go away after the first few brakes. hitting the wear indicator does not mean there is little/no pad material left, it's up to the manufacturer how "deep" they built the indicator into the pad. and break wear pattern is not solely dependent on your driving style, other factors like how much start/stop driving, weight of the car, type of pad material, etc, all contribute too.