Brake calliper failure

[NitroNJN]

Only 7 weeks ago my MX5 had a left hand passenger side front brake calliper failure
As a result I took it into my local garage where every brake disc and brake pad and offending calliper were changed.
The front right calliper was not changed though after I was assured by the garage that it was not unroadworthy
7 weeks later that unchanged calliper failed whilst I was on the M1, thankfully nothing bad happened- just scared me stoopid tho.
My quote from Mazda garage to replace f/r calliper and front discs & pads over £800 -
I spoke with the garage that carried out the work 7 weeks ago and they said ‘bad luck’ - what can I do ?

Shouldn’t brake callipers be changed fully like brake pads & discs are ? Shouldn’t that be made law ?

Edited by NitroNJN on Friday 24th March 08:48

[NitroNJN]

So why is is ‘good practice’ to change both discs and pads but not callipers?
New discs because brake callipers seized on motorway destroyed brake pad and scored brake disc badly

[NitroNJN]

E-bmw said:

So what would you do if you changed 3 tyres as 1 was OK & then the week later had a puncture, should changing all 4 tyres together be made law too?

What about just changing 3 spark plugs when 1 looked good, but then that one fails, shall we make changing 4 spark plugs the law too?

Is it the school holidays again?

Think the ‘school holiday’ remark is a little unkind - it was a question not an instruction and you should learn to read properly before spewing an answer that bares no relation in answer to the question

[NitroNJN]

NitroNJN said:

Think the ‘school holiday’ remark is a little unkind - it was a question not an instruction and you should learn to read properly before spewing an answer that bares no relation in answer to the question

a spark plug failing is hardly a fair comparison- and in regards to tyres - yeah I understand - just replaced 2 new tyres 4 days after being fitted with replacements due to potholes - funny that I am entitled to compensation from the council on that matter though!

Edited by NitroNJN on Friday 24th March 09:40

[NitroNJN]

Scrump said:

Replace pads with new discs as the old pads will have been worn to fit the old discs so may not have a face which is flush with the new discs.
Replace discs and pads on both sides of the car at the same time in order to give equal brake force left and right. Replacing just one side may lead to uneven breaking (which is undesirable).

The failure of calipers is different, they don’t wear in the same way as discs and pads, and the force applied comes from the hydraulics, so as long as the pistons are clean and the seals are intact then the force applied by a new one should be the same as the force applied by an old one. Despite that I would normally change both calipers at the same time if I had any doubts.

Thank you Scrump- common sense and thoughtful too- unlike some responses. I worked in the Armed Forces servicing jets and it was and I’m sure still is ‘good practice’ to change 2 identical and life saving mechanical parts when both have been on a vehicle for the same period of time - if one fails the other is very likely to go soon after