broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
User status: Offline
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have been having a bit of vibration on my brakes for a while, not warped disc vibs.... worse.... havent had the time or money to get it fixed for a while, had new discs but was waiting to get new pads first.... anyway today i put new discs and pads on the car, removed the old black diamond disc's and green stuff pads to find th efull extent of what was causing the vibration, i knew it was not good but this disc is shocking IMO....
images of inside of the disc:
outer face of the disc
thats the drivers side disc, the passenger side was fine, all the pads wer worn the same way..... whats caused this!?
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Jas
Member
Registered: 13th Oct 04
Location: Mid Wales
User status: Offline
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bling bling 
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Rileysport
Member
Registered: 18th Jun 04
Location: West Yorkshire
User status: Offline
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looks like defective disc material... or its got very very hot at some point then cooled rapdidly... should see the pads that just came off mine  i'd say about 0.5 mm of material left if that 
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dna23
Member
Registered: 1st Nov 04
Location: Northamptonshire
User status: Offline
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maybe i won't have them lmfao
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N90ATH
Member
Registered: 10th Sep 03
Location: Boreham, Essex
User status: Offline
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oh dear looks like metal to metal rubbing, did the pads have any meat left on them?
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
User status: Offline
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surely if it had got hot it would have damaged both sides of the disc.... not just one side of one disc
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City
Member
Registered: 30th Dec 03
Location: Wakefield Drives: Red GSi
User status: Offline
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i had same, one of my calipers was knackered - changed it and it was fine after
does you car pull to one side while you put the brakes on?
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
User status: Offline
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the pads had loads left on them, least 6mm...
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
User status: Offline
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no brakes feel fine. stops well no pulling.... when the brakes are cool they work fantastic, when it gets hot it just vibrates like buggery, calipers are pretty new anyway.... they are as old as the pads i took out!
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
User status: Offline
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quote:
Originally posted by dna23
maybe i won't have them lmfao
sure....
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City
Member
Registered: 30th Dec 03
Location: Wakefield Drives: Red GSi
User status: Offline
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quote:
Originally posted by broster
the pads had loads left on them, least 6mm...
mine was same sticky caliper, when i pressed brakes car pulled to one side also disc was warped, new caliper sorted it
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Rileysport
Member
Registered: 18th Jun 04
Location: West Yorkshire
User status: Offline
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quote:
Originally posted by broster
surely if it had got hot it would have damaged both sides of the disc.... not just one side of one disc
funny you should say that.... i lit up the discs on my old rover and it was only the inner side of the discs that were knackered 
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City
Member
Registered: 30th Dec 03
Location: Wakefield Drives: Red GSi
User status: Offline
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quote:
Originally posted by broster
no brakes feel fine. stops well no pulling.... when the brakes are cool they work fantastic, when it gets hot it just vibrates like buggery, calipers are pretty new anyway.... they are as old as the pads i took out!
dunno then matey?
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
User status: Offline
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see how long these new discs last then.... lol!
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mwg
Member
Registered: 19th Feb 04
Location: South Lakes
User status: Offline
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Looks similar to the brake discs I took off my car a couple of months ago. Haven't got a pic of the discs but heres a pic of the old pad next to the new pad
Thats O.E. spec 2.0 16v pads
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
User status: Offline
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my pads i took out look the same as your new ones lol
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TNM
Member
Registered: 5th Apr 04
Location: Nottingham Drives: VW Tiguan
User status: Offline
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i have a disk i took off mine a few weeks ago with a massive crack in it 
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ed
Member
Registered: 10th Sep 03
User status: Offline
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quote:
Originally posted by SRi-Co
looks like defective disc material... or its got very very hot at some point then cooled rapdidly... should see the pads that just came off mine i'd say about 0.5 mm of material left if that
No way
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
User status: Offline
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i was thinking dont discs get hot and cold rapidl anyway lol!
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ed
Member
Registered: 10th Sep 03
User status: Offline
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Top tip of the day... Use GM disks!
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
User status: Offline
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they look poo tho........
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ed
Member
Registered: 10th Sep 03
User status: Offline
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And this looks good?
Anyways, I didn't think you tuning guys were into stuff looking good? I thought it was all about performance 
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mwg
Member
Registered: 19th Feb 04
Location: South Lakes
User status: Offline
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The actual pad material was non existant  if you hadn't guessed allready
doesn't make a grinding noise anymore funnily enough 
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
User status: Offline
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ed, yes it looks hardcore! lol!
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Siberia
Member
Registered: 9th Oct 03
Location: Leprechaun Land Drives : Zafira GSI
User status: Offline
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combination of heavy brakeing and the car being sat up for a while i would think....
[Edited on 20-10-2005 by Siberia]
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