Brake disc corrosion? Audi A1
Brake disc corrosion? Audi A1
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Discussion

finlawler

Original Poster:

69 posts

98 months

Friday 10th August 2018
quotequote all
Hi

Please see photo.

My Audi A1 has recently been for an MOT and they have said that there is heavy brake disc corrosion that needs urgent work.

Would this class as heavy corrosion needing urgent work? Not had any issues with braking and it doesn’t look all that bad (IMO)

Any advice / opinions appreciated

Thanks


spookly

4,365 posts

117 months

Friday 10th August 2018
quotequote all
They don't look great to me either. What's the price of a set of discs for an A1? And they'd take even a ham fisted amateur only 1/2 hour to fit them yourself.

finlawler

Original Poster:

69 posts

98 months

Friday 10th August 2018
quotequote all
spookly said:
They don't look great to me either. What's the price of a set of discs for an A1? And they'd take even a ham fisted amateur only 1/2 hour to fit them yourself.
Not sure on the cost of the discs on their own. but I’ve been quoted £126 from a mechanics for 2 new discs and brake pads (2 discs with heavy corrosion came up on the MOT - the image is the one with most corrosion)

anonymous-user

76 months

Friday 10th August 2018
quotequote all
It looks like the corrosion has compromised the braking surface of the disc i.e. where the pad touches the disc so failing it is reasonable. If it were just on the narrow outer edge I would not think that reasonable.

finlawler

Original Poster:

69 posts

98 months

Friday 10th August 2018
quotequote all
gottans said:
It looks like the corrosion has compromised the braking surface of the disc i.e. where the pad touches the disc so failing it is reasonable. If it were just on the narrow outer edge I would not think that reasonable.
Hi mate,

It passed its MOT but the mechanic claimed the work needed to be done urgently (which is why I’m confused).

I just wanted to know if it’s necessary to get them replaced this week in the current state they’re in or if I could wait for a few weeks when it’s more convenient for me.

Ta

Jonny_

4,610 posts

229 months

Friday 10th August 2018
quotequote all
£126 for new discs and pads isn't bad at all. In fact, if that includes fitting, it's a bargain. Get them replaced, brakes are one area where you don't want to chance it. smile

finlawler

Original Poster:

69 posts

98 months

Friday 10th August 2018
quotequote all
Jonny_ said:
£126 for new discs and pads isn't bad at all. In fact, if that includes fitting, it's a bargain. Get them replaced, brakes are one area where you don't want to chance it. smile
Ta mate

The MOT centre quoted £220, looked online and found it almost half the price haha! Will get it sorted soon.

Toyoda

1,571 posts

122 months

Friday 10th August 2018
quotequote all
Are they the rears? Do you live on the coast? That looks canny bad for a not particularly old car.

M_A_S

1,441 posts

207 months

Friday 10th August 2018
quotequote all
The inner face is normally a lot worse than the outer. Of course if he thought they were that bad he should have had the courage of his convictions and failed them.

finlawler

Original Poster:

69 posts

98 months

Friday 10th August 2018
quotequote all
Toyoda said:
Are they the rears? Do you live on the coast? That looks canny bad for a not particularly old car.
Hi mate

MOT certificate reads front inner and rear inner heavy corrosion to brake disc. The image shows the rear. I live around 20 miles from the coast. It’s a 12 plate and MOT history shows no work done on brakes. Just not sure on what exactly I’m looking for - I haven’t noticed any difference in braking since I bought the car a year ago when it passed its MOT with no advisories linking to brakes.

finlawler

Original Poster:

69 posts

98 months

Friday 10th August 2018
quotequote all
M_A_S said:
The inner face is normally a lot worse than the outer. Of course if he thought they were that bad he should have had the courage of his convictions and failed them.
Ta mate

I will take to a local garage and get them to take a look and advise exactly what needs doing. Suprised it is wasn’t a fail considering they classed it has ‘urgent’ over the phone.

anonymous-user

76 months

Friday 10th August 2018
quotequote all
finlawler said:
gottans said:
It looks like the corrosion has compromised the braking surface of the disc i.e. where the pad touches the disc so failing it is reasonable. If it were just on the narrow outer edge I would not think that reasonable.
Hi mate,

It passed its MOT but the mechanic claimed the work needed to be done urgently (which is why I’m confused).

I just wanted to know if it’s necessary to get them replaced this week in the current state they’re in or if I could wait for a few weeks when it’s more convenient for me.

Ta
Then it seems they passed the brake efficiency test but are in poor condition, I would get them changed as I would not be happy to drive on them.

finlawler

Original Poster:

69 posts

98 months

Friday 10th August 2018
quotequote all
gottans said:
Then it seems they passed the brake efficiency test but are in poor condition, I would get them changed as I would not be happy to drive on them.
Cheers mate

Will get them checked over once again this weekend at a local garage so I know what needs doing and I will book in works for next week.

Toyoda

1,571 posts

122 months

Friday 10th August 2018
quotequote all
You mention front and rear. Which pair has the mechanic said need repairing urgently?

To be honest as the face of the disc is coming off in the one in the pic id not hang about in getting it repaired. But it may be worth getting all 4 done and a brake fluid change while you're at it.

As another poster said, the inner faces are usually worse, due to the moisture build up between it and the disc guard. They have to be in a much worse state to fail the mot but that's not to say they're in anywhere near ideal condition as it stands.

GreenV8S

30,997 posts

306 months

Friday 10th August 2018
quotequote all
Are those radial cracks on the braking surface? If they're as bad as they look from this side of the screen, I'd want to replace those discs. I'd also wonder why the brakes were overheating enough to cause those cracks.

Toyoda

1,571 posts

122 months

Friday 10th August 2018
quotequote all
Oh and if you take it to an independent, don't get the absolute cheapest parts fitted like euro car parts' Eicher. Pagid aren't much more and are worth the extra.

finlawler

Original Poster:

69 posts

98 months

Friday 10th August 2018
quotequote all
Toyoda said:
You mention front and rear. Which pair has the mechanic said need repairing urgently?

To be honest as the face of the disc is coming off in the one in the pic id not hang about in getting it repaired. But it may be worth getting all 4 done and a brake fluid change while you're at it.

As another poster said, the inner faces are usually worse, due to the moisture build up between it and the disc guard. They have to be in a much worse state to fail the mot but that's not to say they're in anywhere near ideal condition as it stands.
The mechanic said ‘the works need doing urgently’ didn’t specify which disc brake / s, so I going to presume both. Attached is the image of the front on the same side. I will take to a local garage this weekend and ask him to give me a run through of what exactly needs doing and when. Will probably get changed next week.

Toyoda

1,571 posts

122 months

Friday 10th August 2018
quotequote all
The front looks a lot healthier but the inner face may be worse so try and have a look under with a torch. Or find the little cut out in the disc guard and have a poke about.

finlawler

Original Poster:

69 posts

98 months

Friday 10th August 2018
quotequote all
Toyoda said:
The front looks a lot healthier but the inner face may be worse so try and have a look under with a torch. Or find the little cut out in the disc guard and have a poke about.
Will do mate, ta