Brake pads and area swept

[robwright]

Sometimes it's the only remedy for lots of things Oli! It is soothing my pain now after having suffered an evening of street dance and ballet at the Theatre Royal in Nottingham with my beloved daughter tonight. Is it just me but dancing?? I mean what's the point? These things I can say as my baby girl is now safely tucked up in bed []

 

[peanut2]

Oli ...
do you lie awake at night worrying about this kinda stuff ? []..............sheesh ...and I thought I was the obsessive one around here [][]

 

[peanut2]

ORIGINAL: Diver944

ORIGINAL: robwright

The discs don't look as though they are that far off a change anyway.

New ones are 28mm thick and you are allowed 1mm wear each side (hence 26mm), that crusty lip looks more than a mm to me.

My local tester was telling me that the MOT rules have changed recently and a tester cannot fail a cars brake discs no matter what thickness they are, even if they are paper thin and rusty . provided the braking efficiency is satisfactory it will pass . How about that !

 

[robwright]

I agree with this as far as MOT goes as otherwise what standard do they have? The answer would be none. Would they have a chart to disply the minimum disk thickness for every variant of every car. I don't think so. I think the 1mm wear is also a tad over the top even if that is what is quoted in the book. I believe a good amount of common sense is what is needed. If you don't know yourself when the discs need changing then hopefully any good MOT tester and I stress good would tell you.

 

[Diver944]

The latest MOT rules do seem a little bit hit and miss with regard to brakes, but it's always been true that just because a car has a valid MOT does not mean it's safe.

I'm probably over zealous with brakes now after my complete brake failure at 70mph a few years ago, I feared for my life at the time and then for the £7k repair bill out of my wallet afterwards [&o]

Never ever scrimp on brakes is my new mantra! Saying all that, I don't think Olis unswept area is a big issue as long as his disks aren't paper thin

 

[DavidL]

ORIGINAL: peanut2


My local tester was telling me that the MOT rules have changed recently and a tester cannot fail a cars brake discs no matter what thickness they are, even if they are paper thin and rusty . provided the braking efficiency is satisfactory it will pass . How about that !

Seems correct. I looked in horror at the rear discs on my old rangie when I took the winters off. They were shocking although I can't say I'd had any issues stopping and its a big beast.
So I sent it up to be serviced and MOTed with a new set of discs and pads. I assumed it would be done before the MOT but it wasn't. MOT duely passed with a comment to the effect that they work fine - although this was a tapley as its 4x4 - but were a little crusty!
New ones on now and I can't really feel much difference.

 

[Mike_Pollock]

Rears do nothing anyway[]

 

[peanut2]

ORIGINAL: robwright

I agree with this as far as MOT goes as otherwise what standard do they have?  The answer would be none.  Would they have a chart to disply the minimum disk thickness for every variant of every car.  I don't think so.  I think the 1mm wear is also a tad over the top even if that is what is quoted in the book.  I believe a good amount of common sense is what is needed.  If you don't know yourself when the discs need changing then hopefully any good MOT tester and I stress good would tell you.

it all sounds a bit vague now regarding brake discs ? Apparently they cannot fail discs on thickness or rust or cracks etc only give advisories but surely if the disc was in a dangerous condition they should be able to fail it even if the braking efficiency was satisfactory.

The examiner said the new rules were to stop the common practice of unscruplous garages from failing discs willy nilly in order to get the work[]

 

[PSH]

ORIGINAL: peanut2

The examiner said the new rules were to stop the common practice of unscruplous garages from failing discs willy nilly in order to get the work

Now I can understand the reasoning behind that statement but surely a cracked disc should be an automatic fail, after all there needs to be some common sense used when giving a car the ok for another 12 months on the road?

Pete

 

[peanut2]

ORIGINAL: PSH

ORIGINAL: peanut2

The examiner said the new rules were to stop the common practice of unscruplous garages from failing discs willy nilly in order to get the work

Now I can understand the reasoning behind that statement but surely a cracked disc should be an automatic fail, after all there needs to be some common sense used when giving a car the ok for another 12 months on the road?

Pete

agreed Pete but these days most legislation is crackers...vague and ambiguous. I'm sure there must be some sensible interpretation permitted by examiners of the MOT policy and guidlines.... hopefully[]