Corroded brake discs.

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Vipers

Original Poster:

32,883 posts

228 months

Saturday 22nd October 2016
quotequote all
Following some work on my car, Arnold Clark gave me a list of some work they identified as need looking at in the next few months.

Apart from a dim headlight replacement quoted at £37.50 which made me laugh, it said :-

Brake disc (rear) corroded, (didn't say one or two), £463.92.

So the disc is corroded, should I replace or not.




smile



lord trumpton

7,396 posts

126 months

Saturday 22nd October 2016
quotequote all
Vipers said:
Following some work on my car, Arnold Clark gave me a list of some work they identified as need looking at in the next few months.

Apart from a dim headlight replacement quoted at £37.50 which made me laugh, it said :-

Brake disc (rear) corroded, (didn't say one or two), £463.92.

So the disc is corroded, should I replace or not.




smile
Nah, take it for a good blast and do some heavy braking to clean them up.

It's usually the inner side of the rear discs that can get light surface corrosion.



gazza285

9,810 posts

208 months

Saturday 22nd October 2016
quotequote all
lord trumpton said:
It's usually the inner side of the rear discs that can get light surface corrosion.
Why is that then? Every time I brake both side of the discs are used the same...

castroses

247 posts

98 months

Saturday 22nd October 2016
quotequote all
gazza285 said:
lord trumpton said:
It's usually the inner side of the rear discs that can get light surface corrosion.
Why is that then? Every time I brake both side of the discs are used the same...
Because once you park up the outer sides are exposed to the wind and any moisture will be dried off whearas the inner sides are more sheltered by the hub assembly.....?
Perhaps?

Toaster Pilot

14,619 posts

158 months

Saturday 22nd October 2016
quotequote all
Depends how bad it is


Sheepshanks

32,757 posts

119 months

Saturday 22nd October 2016
quotequote all
lord trumpton said:
Nah, take it for a good blast and do some heavy braking to clean them up.
Some cars have very little braking force on the rears so discs look awful whatever you do - we have Honda Jazz's in the family and their terrible for it.

On all cars once a band of rust starts to spread across the face it won't clean up as the rust rubs away the pad and you end up with only a narrow shiny band. (ETA: as in the picture above).

Edited by Sheepshanks on Saturday 22 October 21:01

Momentofmadness

2,364 posts

241 months

Saturday 22nd October 2016
quotequote all
A wire brush works wonders too wink

Nick NE

117 posts

222 months

Saturday 22nd October 2016
quotequote all
Vipers said:
Brake disc (rear) corroded, (didn't say one or two), £463.92.
What car do you have? Three Range Rovers?

shake n bake

2,221 posts

207 months

Saturday 22nd October 2016
quotequote all
Can't fail an mot on unless they're cracked, wether you want to drive with reduced braking ability is your choice.

Parisien

622 posts

162 months

Saturday 22nd October 2016
quotequote all
Corroded and pitted, or just corroded, meaning some surface rust?

Pitted discs are a fail in N I, what about on the mainland?

P

lord trumpton

7,396 posts

126 months

Saturday 22nd October 2016
quotequote all
castroses said:
gazza285 said:
lord trumpton said:
It's usually the inner side of the rear discs that can get light surface corrosion.
Why is that then? Every time I brake both side of the discs are used the same...
Because once you park up the outer sides are exposed to the wind and any moisture will be dried off whereas the inner sides are more sheltered by the hub assembly.....?
Perhaps?
Yeah this and also the inner disc is close to the dust shield, again hampering any drying off and acting as a shelter for the moisture.

Toaster Pilot

14,619 posts

158 months

Saturday 22nd October 2016
quotequote all
Sheepshanks said:
Some cars have very little braking force on the rears so discs look awful whatever you do - we have Honda Jazz's in the family and their terrible for it.

On all cars once a band of rust starts to spread across the face it won't clean up as the rust rubs away the pad and you end up with only a narrow shiny band. (ETA: as in the picture above).

Edited by Sheepshanks on Saturday 22 October 21:01
That's a front disc too - I wondered why it was harder to stop recently smile

Vipers

Original Poster:

32,883 posts

228 months

Saturday 22nd October 2016
quotequote all
Nick NE said:
Vipers said:
Brake disc (rear) corroded, (didn't say one or two), £463.92.
What car do you have? Three Range Rovers?
????? Volvo S80, am I missing something.




smile

Justin S

3,641 posts

261 months

Saturday 22nd October 2016
quotequote all
£100 plus 30% off making £70 at ECP this weekend for discs ( a pair) and pads, means thats a shed load of labour to make it all new again. I would have a check see what they mean by corrosion first though.

gazza285

9,810 posts

208 months

Saturday 22nd October 2016
quotequote all
Vipers said:
????? Volvo S80, am I missing something.




smile
Indeed, just had a new caliper, two new disks, new pads and new handbrake shoes fitted on my V70 for £330. Same bits.

Nick NE

117 posts

222 months

Saturday 22nd October 2016
quotequote all
Vipers said:
????? Volvo S80, am I missing something.




smile
Without pricing the parts, I'd expect that work to cost a maximum of £125 at a good independent with decent quality bits and an hour's labour.

Perhaps a bit less if Justin's prices are correct above.

Arnold must be a very rich man if he can get away with those prices! wink



Edited by Nick NE on Saturday 22 October 23:06

williamp

19,256 posts

273 months

Saturday 22nd October 2016
quotequote all
I'll change them for £400. I wont even charge VAT. Aren't I a nice man??

Seriosuly, that is very expensive. I'd get undernetah with a torch and have a look. If they are bad then fair enough. But they dont need a main dealer to do them. If they just need an "Italian tune-up" then...

mcford

819 posts

174 months

Sunday 23rd October 2016
quotequote all
Vipers said:
Brake disc (rear) corroded, (didn't say one or two), £463.92.
It doesn't make any difference as to whether it is one or two, brake discs should alwats be replaced as an axle set along with the pads.

FN2TypeR

7,091 posts

93 months

Sunday 23rd October 2016
quotequote all
Vipers said:
Nick NE said:
Vipers said:
Brake disc (rear) corroded, (didn't say one or two), £463.92.
What car do you have? Three Range Rovers?
????? Volvo S80, am I missing something.




smile
Four hundred and sixty quid for a disc replacing on a Volvo S80? eek

Even if it were both - tell them to fk off.

Sheepshanks

32,757 posts

119 months

Sunday 23rd October 2016
quotequote all
I've no idea on Volvo S80 but on some cars changing the rear's is more awkward than the fronts.