V8V Brake Squeak

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Discussion

GR1FF1F

Original Poster:

523 posts

239 months

Thursday 5th July 2007
quotequote all
Am being told by dealership that my Vantage brakes are prone to squeak as they need to be kept warm by hard braking before it will stop. This can be an issue as there is not always the opportunity to slam on the anchors without someone hitting you up the A55 or criticisng you in some verbal or other manner.

Basically the squeak happens all the time at low speed and has become an embarrassment in traffic or car parks. I've insisted and it's booked back in to have the pads checked, but wondered if others have had this problem. I'm pretty sure I've had DB9's and Vantages pull up in my vicinity and not heard the sound of a dental drill in action, but then again maybe they've just been driving hard and making full use of the ABS.

stanwan

1,898 posts

231 months

Thursday 5th July 2007
quotequote all
Mine do this too. A spell of aggressive braking can cure it easliy. Alternatively, I left foot brake to heat them up...

I think the aim is to get them to a decent pad temperature to deposit some material onto the discs.

magarnett

135 posts

271 months

Thursday 5th July 2007
quotequote all
Mine ok so far, but not done many miles yet

Mark

bogie

16,561 posts

277 months

Thursday 5th July 2007
quotequote all
the pads on the V8 are a differenet compound - they are Pagids...they squeak like this on all cars...theres nothing wrong with them, I have the same on my Elise

you need to bed them in properly from new - a few stops from 30mph, then 70mph and hold the pedal for a few secs hard...that will sort it out

if you just potter around town for a few weeks you may find it comes back as the pads glaze...so a few hard stops will cure it

they are great pads and very fade resistant on track smile

..there will be no dealer "fix" as theres nothing wrong with them...you could change to something less aggressive I guess

edit to add some links - these are for the race pads...the OEM fitment on the V8 are black compound RS4-2-2s I think, but you get the drift wink

http://www.braketechnology.com/brakepadbedding.htm...

http://www.pagidusa.com/bedding_in_procedure.htm

Edited by bogie on Thursday 5th July 19:08

Murph7355

38,614 posts

261 months

Thursday 5th July 2007
quotequote all
Bedding in as mentioned is a good idea.

Mine still do it a very small amount now just before reaching standstill, but some good use of the brakes sorts it.

The brakes on these cars are very good IMO.

GetCarter

29,543 posts

284 months

Thursday 5th July 2007
quotequote all
/\ What they said. Mine started squeeking, so I gave 'em a good seeing to at speed a few months back and they've been fine ever since.

andy355

1,343 posts

243 months

Thursday 5th July 2007
quotequote all
ive had squeaky brakes on all my sports cars... annoying, even if you do work them hard to erase it, it soon comes back again. its not the noise you want people to hear as you stop at the traffic lights!

GR1FF1F

Original Poster:

523 posts

239 months

Friday 6th July 2007
quotequote all
bogie said:
you need to bed them in properly from new - a few stops from 30mph, then 70mph and hold the pedal for a few secs hard...that will sort it out
Thanks for all the advice chaps. I'll go out tonight and find somewhere to do the stops. I take it the 30mph ones I need to completely stop, then the 70's I just need to brake hard from say 70 down to 40 ?

Sounds like fun

sjwb

550 posts

213 months

Friday 6th July 2007
quotequote all
Bedding the brakes in???? Why?
Your brakes are fully bedded in at the factory, as part of the vehicle shakedown process. Each car off the production line goes through this.
It is more likely that glazing is the issue and can be remedied as described.

bogie

16,561 posts

277 months

Friday 6th July 2007
quotequote all
you just need to find a clear stretch of road, get up to 30mph, brake gently a couple of times to a standstill, then do the same from 50mph, then a couple more from 70mph, then do a couple of emergency stops say from 50mph..that should clean them up

so do a few stops to get some heat into them, then some proper stops...sorted

tuscaneer

7,834 posts

230 months

Friday 6th July 2007
quotequote all
are you into the whole wet tyre look? the reason i ask is that i always had a can of that spray on stuff at hand to keep tyre walls super glossy and always had bad squeaky brakes.someone told me to stop using sprays as the stuff would invariably get all over the disks and pads and cause the noise.got tyre gel instead and the problem receeded after about a week(this was on a chimera by the way)not had any problems with the 4 or 5 cars since.that said i have had my v8 new since march and have now covered about16oo miles and every now and again notice slow speed squeak like everyone else here.its so infrequent however it hasnt troubled me unduly

ColB2

72 posts

222 months

Friday 6th July 2007
quotequote all
Mine had been squealing in the same manner for over a year. Problem reported at 2 days old and through to the current mileage of 5000 ish, despite the dealer trying to manually deglaze on several occasions to the factory instructions. Driving habits previously did nothing to change the situation. I did notice however the squeal went in damp weather driving, or after car washing. There is now a factory warranty fix which is a shim that is installed to alter the resonance frequency. Mine modified at no cost 6 weeks ago and been ok so far....fingers crossed.

bogie

16,561 posts

277 months

Friday 6th July 2007
quotequote all
forgot to mention...aftermarket Pagids usually come with anti squeal buffer pads....could be called a "shim" i guess...basically some material that goes behind the pad when you fit them..I wonder if AM havnt been fitting them?

GetCarter

29,543 posts

284 months

Friday 6th July 2007
quotequote all
ColB2 said:
There is now a factory warranty fix
Ah... the famous factory fix (easy when you know how - just ask one of the technicians what he does) smile


Edited by GetCarter on Friday 6th July 18:40

ColB2

72 posts

222 months

Friday 6th July 2007
quotequote all
The factory Technical customer services told me what the fix was, I then had to tell the dealer, the factory gave authorisation to the dealer then the dealer did the fix...just took a year to get that far!

Murph7355

38,614 posts

261 months

Friday 6th July 2007
quotequote all
You always used to get anti-squeal shims in a set of brake pads....nowt new.

But if you use the brakes hard regularly, I don't think they're 100% necessary.

GR1FF1F

Original Poster:

523 posts

239 months

Saturday 7th July 2007
quotequote all
Well mine went in today for work on Monday. They said they'd shamfer the pads and rebed them but didn't mention the fix described above. Maybe I'll mention it if they have no luck reducing the squeal.

GR1FF1F

Original Poster:

523 posts

239 months

Wednesday 11th July 2007
quotequote all
Delivered back to me yesterday. Today's drive a joy - no squeak - hurrah !

steveyg

9 posts

218 months

Friday 13th July 2007
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17 months later dealer stopped sqweaky brakes! can go to town quietly now!said they fitted something to the discs !

JohnG1

3,485 posts

210 months

Friday 19th October 2007
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[I know this is a very old topic but I only got a Vantage a while ago and the squeaking is driving me up the wall]

So, I can go to the dealer and ask for this factory fit shim thing and then bobs yer uncle? A trip to Cambridge awaits, may try and see if there is a GT2 next door...