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Unknown 'Squeal'

Posted: Sat Dec 05, 2015 4:00 pm
by Shakeystevo
Afternoon all.

Over the last few weeks I've been having terrible squealing from the front drivers side wheel area...

It was happening the vast majority of the time when driving at low speeds <30mph - it also seems to stop when I broke. Hence I decided to upgrade the front disks and pads thinking it would solve the problem (it was on my list to do anyway).

I spent this morning swapping them over - spending more time cleaning and making sure all brake dust etc was brushed off (wire brushed). Copper grease used also when re-fitting. Even bought some air duster cans to blast out everything.

Went out for a few miles to test all was fine for the first few miles but the squeal is still there... albeit less than before but still enough to be annoying as @&%$!! :cry:

Starting to think it could be something else (suspension??) but the squeal still stops when I brake.

Anybody have any ideas? or what else I should strip out to clean?

Cheers
Shakey

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Re: Unknown 'Squeal'

Posted: Sat Dec 05, 2015 4:03 pm
by Shakeystevo
Also managed to pull out one of the wires for the brake pad warning (on the car not pad) - can VCDS turn off the dash warning?

Re: Unknown 'Squeal'

Posted: Sat Dec 05, 2015 4:38 pm
by Cuprabob
Are you sure it's coming from the the front?

I had exactly as you describe and it was a binding rear caliper.

Re: Unknown 'Squeal'

Posted: Sat Dec 05, 2015 4:39 pm
by Shakeystevo
I thought the same. Had my buddy sat in the back with the windows down haha - we still think it's front.

Going to clean the rears tomorrow anyway


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Re: Unknown 'Squeal'

Posted: Sun Dec 06, 2015 12:32 am
by blower
I notice in your picture that the retaining spring clip is missing - I assume you just hadn't put it back on when you took the pic?

Btw you shouldn't use any grease on the area where the pad end guide pieces slide in and out on the caliper - it should be cleaned and lightly sanded if necessary but don't grease it as the brake dust and crap will stick to the grease and will gum up the area.

Re: Unknown 'Squeal'

Posted: Sun Dec 06, 2015 7:26 am
by Shakeystevo
Thanks blower. Yeah spring clip on, just hadn't refitted at that point.

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Re: Unknown 'Squeal'

Posted: Sun Dec 06, 2015 10:44 am
by tommy
Shakeystevo wrote:Afternoon all.

Over the last few weeks I've been having terrible squealing from the front drivers side wheel area...

It was happening the vast majority of the time when driving at low speeds <30mph - it also seems to stop when I broke. Hence I decided to upgrade the front disks and pads thinking it would solve the problem (it was on my list to do anyway).

I spent this morning swapping them over - spending more time cleaning and making sure all brake dust etc was brushed off (wire brushed). Copper grease used also when re-fitting. Even bought some air duster cans to blast out everything.

Went out for a few miles to test all was fine for the first few miles but the squeal is still there... albeit less than before but still enough to be annoying as @&%$!! :cry:

Starting to think it could be something else (suspension??) but the squeal still stops when I brake.

Anybody have any ideas? or what else I should strip out to clean?

Cheers
Shakey

Image
I had the same squealing noise when manovering in car park + driving at low speeds. Once the cars been driven for a while, the noise disappeared. Since then I changed the rear brakes and the noise is gone completely. Hope you get it sorted mate.

Re: Unknown 'Squeal'

Posted: Sun Dec 06, 2015 11:02 am
by Shakeystevo
Cheers Tommy. That's next on my list lol. I'll give it a few more miles and see what it does.

The notes that came with the pads/discs don't help much... For the bedding in process just says avoid heavy and emergency braking for 300 miles lol


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Re: Unknown 'Squeal'

Posted: Sun Dec 06, 2015 11:44 am
by tommy
Shakeystevo wrote:Cheers Tommy. That's next on my list lol. I'll give it a few more miles and see what it does.

The notes that came with the pads/discs don't help much... For the bedding in process just says avoid heavy and emergency braking for 300 miles lol

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Yer the instruction is rubbish. I had to look up online. http://ebcbrakes.com/articles/how-to-be ... driving-2/

I hate any strange noise. So hope u get yours sorted. Especially when the noise is only intermittent... def worth checking your rear. As I said mine didn't cause any problem when it's been driven for a while. It's only in the first 5-10mins of driving :grumpy:

Re: Unknown 'Squeal'

Posted: Mon Dec 07, 2015 10:44 am
by chelspeed
Have you done the 300 mile bedding in process? Looking at your discs which look like brand new I'd think not. Don't do anything rash until the marks on the new disc face shows full width contact with the pads.

When you have and if it still squeals then go somewhere wide and quiet. Get it up to a decent speed (59.9mph...), check the mirror and brake really hard down to virtually stopped, repeat a few times. That sometimes deglazes the pads (particularly with your grooved discs) and gives the pads a fresh surface to brake with. Simple and free so worth a try.

Re: Unknown 'Squeal'

Posted: Mon Dec 07, 2015 11:00 am
by Cuprabob
chelspeed wrote:Have you done the 300 mile bedding in process? Looking at your discs which look like brand new I'd think not. Don't do anything rash until the marks on the new disc face shows full width contact with the pads.

When you have and if it still squeals then go somewhere wide and quiet. Get it up to a decent speed (59.9mph...), check the mirror and brake really hard down to virtually stopped, repeat a few times. That sometimes deglazes the pads (particularly with your grooved discs) and gives the pads a fresh surface to brake with. Simple and free so worth a try.
He is not gettimg squealing while braking but the opposite, the squeal disappears while braking. He also had the squealing prior to changing the discs and pads.

Re: Unknown 'Squeal'

Posted: Mon Dec 07, 2015 1:55 pm
by Shakeystevo
As cuprabob says :)

Only fitted Sat so haven't reached 300 miles yet lol

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Re: Unknown 'Squeal'

Posted: Mon Dec 07, 2015 11:27 pm
by sciroccorich
I had a similar issue every time I turned left at slow speeds. It sounded brake disc related and stopped if I touched the brakes while turning

It sounded like it was coming from the front but after changing the rear pads (which were low), the noise immediately stopped.........result!

Re: Unknown 'Squeal'

Posted: Tue Dec 08, 2015 8:15 am
by Shakeystevo
Thanks for all the replies guys.

Convincing myself it is the rear... The squeal is still about albeit less however the pitch and tone is the same...

Given I've swapped the front I would have thought, if it was still in the front, the tone and pitch would be different. .. If that makes sense lol


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Re: Unknown 'Squeal'

Posted: Tue Dec 08, 2015 10:07 am
by Cuprabob
Easy to confirm if it's the rear. Next time you hear the squeal give the handbrake a gentle pull to see if the noise disappears.

In my case, when I had it, the brake that was binding was hotter than the other one.

Re: Unknown 'Squeal'

Posted: Tue Dec 08, 2015 10:17 am
by Shakeystevo
Good call! Never thought of that. I'll give it a go later today :)

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