MOT Fail?

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Discussion

Knoxville2410

Original Poster:

292 posts

74 months

Friday 19th November 2021
quotequote all
Hi all,

Forgot I have an MOT booked in tomorrow morning and two tyres are questionable. Could do with waiting until pay day next week to change them, so just wondering if they will pass for tomorrow.

The first two are a front tyre, some edge wear and borderline touching the 1.6mm markers.





This is a rear tyre, almost touching the wear marker.



I know that they need changing, and they will be changed. So please no lectures...

Edited by Knoxville2410 on Friday 19th November 16:47

Tyre Smoke

23,018 posts

276 months

Friday 19th November 2021
quotequote all
Top one is a definite fail.

The wear markers are at 2mm I think. The limit is 1.6mm over 75% of the tread. BUT there must be visible tread on the remaining 25%.

I'd guess the second one is equally a fail.

Couple of part worn to get you through the test?

Knoxville2410

Original Poster:

292 posts

74 months

Friday 19th November 2021
quotequote all
Tyre Smoke said:
Top one is a definite fail.

The wear markers are at 2mm I think. The limit is 1.6mm over 75% of the tread. BUT there must be visible tread on the remaining 25%.

I'd guess the second one is equally a fail.

Couple of part worn to get you through the test?
That's really helpful, thanks.

I am going to have to try and get them done in the morning I think!

Mo28

907 posts

115 months

Friday 19th November 2021
quotequote all
Might also want to get the tracking checked out as well whilst you're at it.

Tyre Smoke

23,018 posts

276 months

Friday 19th November 2021
quotequote all
What's your spare like?

Bang that on the bald one and you might get it through.

And yes, get your tracking done. Otherwise the new tyres will look the same in a few hundred miles.

Knoxville2410

Original Poster:

292 posts

74 months

Friday 19th November 2021
quotequote all
Don't have a spare unfortunately (BMW).

Will look to get tracking sorted too. Seems to have gotten worse as it has always worn on outside edge, just not as quick as the entire tyre wearing down.

Thanks for the help!

Pica-Pica

15,220 posts

99 months

Friday 19th November 2021
quotequote all
Knoxville2410 said:
Tyre Smoke said:
Top one is a definite fail.

The wear markers are at 2mm I think. The limit is 1.6mm over 75% of the tread. BUT there must be visible tread on the remaining 25%.

I'd guess the second one is equally a fail.

Couple of part worn to get you through the test?
That's really helpful, thanks.

I am going to have to try and get them done in the morning I think!
As far as I am aware the TWIs are at 1.6mm the legal minimum tread depth. I would get prepared for a new tyre at 3mm, aquaplaning risk increase below 3mm.

Edited by Pica-Pica on Friday 19th November 17:35

njw1

2,471 posts

126 months

Friday 19th November 2021
quotequote all
I'd bet a large sum of money that there's nothing wrong with your tracking, all BMW's seem to have a habit of scrubbing the outer edge off the front tyres, I had mine four wheel aligned last year and it's still worn the front tyres like the pictures above.
Also, FWIW, I've had tyres worn on the edge like that pass an mot but with an advisory, depends how picky the tester is I suppose.

Little Pete

1,751 posts

109 months

Friday 19th November 2021
quotequote all
The 1.6mm minimum tread depth only applies to the centre 75% of the tread. The remaining 25% can be bald.

shakindog

512 posts

165 months

Friday 19th November 2021
quotequote all
The law is 1.6mm over central 3/4 and visible tread on the remaining 1/4. Which will be the shoulders
But weirdly can pass an mot bald on the outside or inner edge.
Could always pay ya money and take ya chance or wait till they are changed as will very much depend on the mot testers view

stevemcs

9,468 posts

108 months

Friday 19th November 2021
quotequote all
Trouble is if at any point they are below 1.6mm they will be an instant fail and be classed as a dangerous defect do not drive. I can understand why you want to wait until next payday but they haven't just worn like that and you would have know3-4 paydays ago that they were needed.

Little Pete

1,751 posts

109 months

Friday 19th November 2021
quotequote all
shakindog said:
The law is 1.6mm over central 3/4 and visible tread on the remaining 1/4. Which will be the shoulders
But weirdly can pass an mot bald on the outside or inner edge.
Could always pay ya money and take ya chance or wait till they are changed as will very much depend on the mot testers view
That’s not correct I’m afraid. There doesn’t have to be any visible tread on the remaining 25%, for a car at least. That’s why a tyre that is bald on the edge can pass.

Edited by Little Pete on Friday 19th November 21:27

stevieturbo

17,774 posts

262 months

Friday 19th November 2021
quotequote all
stevemcs said:
Trouble is if at any point they are below 1.6mm they will be an instant fail and be classed as a dangerous defect do not drive. I can understand why you want to wait until next payday but they haven't just worn like that and you would have know3-4 paydays ago that they were needed.
Clearly they should have been changed a long time ago !

Knoxville2410

Original Poster:

292 posts

74 months

Friday 19th November 2021
quotequote all
Thanks for the useful feedback.

Going to get a couple of tyres put on in the morning. With winter approaching it's not worth the risk either way, especially with a rwd BMW in the snow!

shakindog

512 posts

165 months

Friday 19th November 2021
quotequote all
Little Pete said:
shakindog said:
The law is 1.6mm over central 3/4 and visible tread on the remaining 1/4. Which will be the shoulders
But weirdly can pass an mot bald on the outside or inner edge.
Could always pay ya money and take ya chance or wait till they are changed as will very much depend on the mot testers view
That’s not correct I’m afraid. There doesn’t have to be any visible tread on the remaining 25%, for a car at least. That’s why a tyre that is bald on the edge can pass.

Edited by Little Pete on Friday 19th November 21:27
Are you 100% sure on that.
As i said above that is what the law states feel free to look it up. But as I did also say to pass an mot it can be bald on the edges. it’s one of the oddity’s of the law and mot’s.
I’ve had the discussion before with an mot tester and had it explained to me in words of one syllable 🤣
But I am always happy to be educated

Andyjc86

1,149 posts

164 months

Friday 19th November 2021
quotequote all
From the MOT manual:

The primary grooves of the tread pattern must be at least 1.6mm deep within the central three-quarters of the breadth of tread and around the entire outer circumference of the tyre (see diagram 1).

Either side of the central three-quarters of the tyre can be devoid of tread (‘bald’).

I would personally say the first tyre is a fail though. The bold bit isn’t contained to the edge. But, it’s all down to that particular testers opinion at that moment in time though.

Little Pete

1,751 posts

109 months

Friday 19th November 2021
quotequote all
shakindog said:
Little Pete said:
shakindog said:
The law is 1.6mm over central 3/4 and visible tread on the remaining 1/4. Which will be the shoulders
But weirdly can pass an mot bald on the outside or inner edge.
Could always pay ya money and take ya chance or wait till they are changed as will very much depend on the mot testers view
That’s not correct I’m afraid. There doesn’t have to be any visible tread on the remaining 25%, for a car at least. That’s why a tyre that is bald on the edge can pass.

Edited by Little Pete on Friday 19th November 21:27
Are you 100% sure on that.
As i said above that is what the law states feel free to look it up. But as I did also say to pass an mot it can be bald on the edges. it’s one of the oddity’s of the law and mot’s.
I’ve had the discussion before with an mot tester and had it explained to me in words of one syllable ??
But I am always happy to be educated
This is from the testers manual.

Some testers will guess rather than refer to the manual, it’s why we used to have refresher courses.