Brake Disk Corrosion

gordonium · 11-08-2008, 23:23

All

I have notices specs of what looks like rust specs on all four brake discs.
This is a 55 plate, with 29k on the clock and was mentioned at the last service two months ago, but not as in needing any work done yet.

After driving for a few miles and braking etc this disappears.

I am due for its first MOT end of this month, and am wondering if this could be a failure?
personally, this seems quite unusual for a 3 yr old car with average mileage.

was too dark to add photos, but will add if this helps.

dont suppose there anything i can do under warranty? i got three weeks left in that!

Thanks

Gordon

Conshine · 11-08-2008, 23:33

The discs will show specs of rust on them if you leave them for a while or after rain as the metal disc is ecposed to the elements and it just starts to rust.

Nothing to worry about, my fabia does it on a 4 discs if you leave it and it's gone when you drive after a few presses of the pedal.

I have just had all 4 discs replaced too so I wouldn't worry, don't think it's a failure.

So long at they are not pitted you should be fine.

cjb · 12-08-2008, 08:30

Discs always rust- like Conshine says, they are steel, so there's no way they won't.

As long as they aren't worn, scored, pitted, or the pads aren't contacting the full width because of a stuck caliper, they are fine.

Bodge · 12-08-2008, 08:43

you should have seen mine the other day after i used 'wonder wheels' on the rims! Rusterama!

It's perfectly normal, and will always happen. Zero concern.

ap0gee · 12-08-2008, 08:45

Quote:

Originally Posted by cjb

Discs always rust- like Conshine says, they are steel, so there's no way they won't.

As long as they aren't worn, scored, pitted, or the pads aren't contacting the full width because of a stuck caliper, they are fine.

They're actually cast iron, but other than that, a big

on all the above

gordonium · 12-08-2008, 20:31

will find out tomrow!! thanks guys, if they say something, i will set you all on them!!

Lummox · 12-08-2008, 20:47

Quote:

Originally Posted by ap0gee

They're actually cast iron, but other than that, a big

on all the above

Unless they are ceramic (as your being picky)

mark_sargeant19 · 12-08-2008, 20:49

mine go a lovely tango orange colour about 30mins after washing, not fussed tho

KenONeill · 13-08-2008, 12:21

Quote:

Originally Posted by Lummox

Unless they are ceramic (as your being picky)

If we're going to get picky

There's also carbon matrix discs, and the difference between "cast iron" and "steel" is normally the percentage of carbon in the alloy.

anewman · 13-08-2008, 12:31

My car hasn't been used for a few months - you ought to see my brake discs

Banana-Man · 13-08-2008, 19:23

Feel with your fingers if they are pitted - that's the type of corrosion they will fail MOT. Left standing the brakes always rust, this is normal and will go nice and shiney when you use the car.

Don't Worry!!!

vRSLen · 13-08-2008, 20:17

Just drive the bl00dy thing

jamesmckelvie · 13-08-2008, 20:21

why do they fail the mot if they are pitted slightly?

Banana-Man · 13-08-2008, 20:59

If they are pitted there firstly is a much less surface area for the pads to stop them. The surfaces are uneven and the brakes could fade rapidly. Worst of all if the disc are pitted this could lead to the rust fracturing the disc and then you could end up in a wooden overcoat.

It's normally rears get pitted.

cookie-859 · 11-09-2008, 17:42

My 53 Octavia failed its first MOT because of pitted discs!! Haven't had that sort of trouble with any of my previous cars [Not Skodas!]

11-08-2008, 23:23	#1
gordonium Briskodian Join Date: May 2007 Location: Glasgow Posts: 79 Members Car: Thanks: 7 Thanked 1 Time in 1 Post	Brake Disk Corrosion All I have notices specs of what looks like rust specs on all four brake discs. This is a 55 plate, with 29k on the clock and was mentioned at the last service two months ago, but not as in needing any work done yet. After driving for a few miles and braking etc this disappears. I am due for its first MOT end of this month, and am wondering if this could be a failure? personally, this seems quite unusual for a 3 yr old car with average mileage. was too dark to add photos, but will add if this helps. dont suppose there anything i can do under warranty? i got three weeks left in that! Thanks Gordon

11-08-2008, 23:33	#2
Conshine Ho Ho Ho Join Date: Feb 2007 Location: Ashford, Kent Posts: 1,904 Members Car: Silver Fabia vRS Thanks: 102 Thanked 56 Times in 56 Posts	Re: bRAKE DISC CORROSION The discs will show specs of rust on them if you leave them for a while or after rain as the metal disc is ecposed to the elements and it just starts to rust. Nothing to worry about, my fabia does it on a 4 discs if you leave it and it's gone when you drive after a few presses of the pedal. I have just had all 4 discs replaced too so I wouldn't worry, don't think it's a failure. So long at they are not pitted you should be fine. __________________ Ben

12-08-2008, 08:30	#3
cjb Briskodian Join Date: Sep 2006 Location: Walsall Posts: 1,755 Members Car: Leon TDI DSG or Lupo 16v Sport Thanks: 110 Thanked 114 Times in 110 Posts	Re: bRAKE DISC CORROSION Discs always rust- like Conshine says, they are steel, so there's no way they won't. As long as they aren't worn, scored, pitted, or the pads aren't contacting the full width because of a stuck caliper, they are fine. __________________ -- Chris ---------------------------------------------------- The Devil may care, but I don't mind.

12-08-2008, 08:43	#4
Bodge Briskodian Join Date: Sep 2007 Location: England Posts: 879 Members Car: '02 Octavia RS Thanks: 118 Thanked 73 Times in 69 Posts	Re: bRAKE DISC CORROSION you should have seen mine the other day after i used 'wonder wheels' on the rims! Rusterama! It's perfectly normal, and will always happen. Zero concern. __________________ Diamond Silver '02 Octavia vRS hatch

12-08-2008, 20:31	#6
gordonium Briskodian Join Date: May 2007 Location: Glasgow Posts: 79 Members Car: Thanks: 7 Thanked 1 Time in 1 Post	Re: Brake Disk Corrosion will find out tomrow!! thanks guys, if they say something, i will set you all on them!!

12-08-2008, 20:49	#8
mark_sargeant19 Briskodian Join Date: Feb 2008 Posts: 205 Members Car: 2001 Black Magic Octy VRS Thanks: 4 Thanked 3 Times in 2 Posts	Re: Brake Disk Corrosion mine go a lovely tango orange colour about 30mins after washing, not fussed tho __________________ 2001 Black Magic Octy Vrs Ebay CAI Forge SPLRT DV Jetex 200CEL Sports cat Hayward and Scott turbo back exhaust Sprayed grill LCR Splitter DIY Darkened Headlights ** Full sound system

13-08-2008, 12:31	#10
anewman Briskodian Join Date: Jan 2007 Location: Leeds Posts: 2,977 Members Car: 1994 Skoda Favorit GLXIe Estate Images: 1 Thanks: 1,120 Thanked 262 Times in 236 Posts	Re: Brake Disk Corrosion My car hasn't been used for a few months - you ought to see my brake discs __________________ 94 Favorit GLXIe Estate Briskoda "Banger" social group

13-08-2008, 19:23	#11
Banana-Man Briskodian Join Date: Jul 2008 Location: Portsmouth Posts: 79 Members Car: Octavia RS Thanks: 0 Thanked 6 Times in 4 Posts	Re: Brake Disk Corrosion Feel with your fingers if they are pitted - that's the type of corrosion they will fail MOT. Left standing the brakes always rust, this is normal and will go nice and shiney when you use the car. Don't Worry!!! __________________ WOW GUYS!!!! look at all my 5 fantastic mods: Green valve caps on each wheel

13-08-2008, 20:17	#12
vRSLen Briskodian Join Date: Jan 2006 Location: West Yorkshire Posts: 5,423 Members Car: MK11 Octavia vRS Thanks: 169 Thanked 198 Times in 143 Posts	Re: Brake Disk Corrosion Just drive the bl00dy thing __________________ Current car: Black MKII Octavia vRS Combi Previous: Black MKI Octavia vRS Combi Black Fabia Elegance 100 BHP

13-08-2008, 20:21	#13
jamesmckelvie Briskodian Join Date: Oct 2006 Posts: 636 Members Car: Thanks: 41 Thanked 18 Times in 18 Posts	Re: Brake Disk Corrosion why do they fail the mot if they are pitted slightly? __________________ 1.9 TDI Elegance - Cappuccino Beige Plenty enough power and torque for the economy offered

13-08-2008, 20:59	#14
Banana-Man Briskodian Join Date: Jul 2008 Location: Portsmouth Posts: 79 Members Car: Octavia RS Thanks: 0 Thanked 6 Times in 4 Posts	Re: Brake Disk Corrosion If they are pitted there firstly is a much less surface area for the pads to stop them. The surfaces are uneven and the brakes could fade rapidly. Worst of all if the disc are pitted this could lead to the rust fracturing the disc and then you could end up in a wooden overcoat. It's normally rears get pitted. __________________ WOW GUYS!!!! look at all my 5 fantastic mods: Green valve caps on each wheel

11-09-2008, 17:42	#15
cookie-859 Briskodian Join Date: Apr 2008 Posts: 22 Members Car: Thanks: 2 Thanked 0 Times in 0 Posts	Re: Brake Disk Corrosion My 53 Octavia failed its first MOT because of pitted discs!! Haven't had that sort of trouble with any of my previous cars [Not Skodas!]

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