Tyre cut... what would you do?

Tengocity · 04-13-2017, 10:06 AM

As per pic there is a substantial cut to the tyre, but in the deepest part of the tread.

BMW dealer flagged it today at a service, said there was a cord damaged and made me sign a disclaimer that I knew it "wasn't roadworthy" !

I took it to tyre place to see what they'd suggest. They said that whilst deep it's not affected the tyre's structural integrity as when any nail goes through a tyre there's always cords damaged and they can be repaired without issue, especially centrally places ones.

They didn't see any point in a puncture repair as it's not actually punctured and they said there was still significant tread at the bottom of the hole and in effect was no deeper than the bottom of the channels anyway.

Anyway, curious as to what others think!

Tengocity · 04-13-2017, 10:07 AM

Pics this time hopefully

Isow · 04-13-2017, 10:08 AM

You know what others think.
When it comes to safety,why take the risk.
Replace the tyre.

Tengocity · 04-13-2017, 10:23 AM

Because I've got other things to do with my time and money if it's unnecessary!

bimmer456 · 04-13-2017, 10:26 AM

It's worth it to get the tire warranty when you get new tires through BMW so if they deem it not road worthy they will replace it for free.

Hartside · 04-13-2017, 10:32 AM

If it doesn't go beneath the tread block I would leave it. Looks like a screw has been embedded sideways.

Tengocity · 04-13-2017, 10:40 AM

Quote:

Originally Posted by Hartside

If it doesn't go beneath the tread block I would leave it. Looks like a screw has been embedded sideways.

The local tyre place was adamant that it didn't. I think if it wasn't 6mm+ when it happened then might be a different story though.

DougMcL · 04-13-2017, 11:09 AM

Your dealer is just being daft. Looks absolutely fine to me.

teaston · 04-13-2017, 11:14 AM

Absolutely fine for normal or even spirited road use imo.

If taking the car on track or high speed on autobahn then possibly a different matter. I would want absolutely perfect tyres to do 150mph personally.

HighlandPete · 04-13-2017, 11:17 AM

Quote:

Originally Posted by DougMcL

Your dealer is just being daft. Looks absolutely fine to me.

But we can't see the full damage, from Terry's pictures.

Seems the tyre shop is not disputing the depth and cord damage mentioned by the dealer. If it is structurally damaged, there is doubt to its soundness!

Tengocity · 04-13-2017, 11:23 AM

Quote:

Originally Posted by HighlandPete

Quote:

Originally Posted by DougMcL

Your dealer is just being daft. Looks absolutely fine to me.

But we can't see the full damage, from Terry's pictures.

Seems the tyre shop is not disputing the depth and cord damage mentioned by the dealer. If it is structurally damaged, there is doubt to its soundness!

No, they poked around and could see one damaged cord. But then he pointed out that any time they remove a nail and repair a puncture they always see a few damaged cords as well.

Isow · 04-13-2017, 11:39 AM

Any doubt, replace the tyre.
Sorry.

Tengocity · 04-13-2017, 11:49 AM

Quote:

Originally Posted by Isow

Any doubt, replace the tyre.
Sorry.

I'm afraid that level of blanket risk aversion, rather than balanced consideration or risk/benefit is not the way I approach life.

If you give me a reasoned technical appraisal of why you think that then I'm all ears.

DougMcL · 04-13-2017, 11:52 AM

Quote:

Originally Posted by Tengocity

I'm afraid that level of blanket risk aversion, rather than balanced consideration or risk/benefit is not the way I approach life.

If you give me a reasoned technical appraisal of why you think that then I'm all ears.

Agree with your approach. If I were concerned, I would have the tyre removed and mushroom patched.

geordiepaul · 04-13-2017, 11:53 AM

Fill it with some superglue and be done with it.

Tengocity · 04-13-2017, 12:00 PM

Quote:

Originally Posted by geordiepaul

Fill it with some superglue and be done with it.

I did actually wonder about that! I've got some glue for repairing trainers that I thought might be worth trying.

Drek · 04-13-2017, 12:09 PM

You know what dealers are like, err on the side of litigation always. Me? I'd go with your tyre dealer but for peace of mind might ask them to patch it up if they can. Funnily enough, I had my car serviced today as well and they spotted a bulge in the OSF tyre, no disclaimer to sign though.

PX3 · 04-13-2017, 12:10 PM

I assume it's a Runflat, if so I wouldn't worry about it!

Tengocity · 04-13-2017, 12:37 PM

Quote:

Originally Posted by PX3

I assume it's a Runflat, if so I wouldn't worry about it!

Nope, it's a Pilot Super Sport.

When the rears need changed I'm looking to move to PS4S though, so really don't want to be buying another MPSS unnecessarily.

Tengocity · 04-13-2017, 12:38 PM

Quote:

Originally Posted by Drek

You know what dealers are like, err on the side of litigation always. Me? I'd go with your tyre dealer but for peace of mind might ask them to patch it up if they can. Funnily enough, I had my car serviced today as well and they spotted a bulge in the OSF tyre, no disclaimer to sign though.

I'd be more worried by a bulge, as to me that sounds structural.

Tengocity · 04-13-2017, 12:42 PM

Quote:

Originally Posted by Drek

You know what dealers are like

What made me chuckle is that when I went to pick it up he had to mention that it's "lowered, has non-standard brakes, and modified exhaust system".... but asked as if it was a question and was I aware of this!

"Yes, now it's so much better" was my reply.

Soul_Glo · 04-13-2017, 12:45 PM

I wouldn't worry about it. Don't use super glue as it can harden and puncture the tyre again. There are some rubber glues out there but probably bot suitable for car tyres. You can patch it in case though.

04-13-2017, 10:06 AM	#1
Tengocity General 8567 Rep 19,982 Posts Drives: 911, Cayenne Turbo, Disco 4 Join Date: Sep 2013 Location: Crieff, Perthshire, Scotland iTrader: (0)	Tyre cut... what would you do? As per pic there is a substantial cut to the tyre, but in the deepest part of the tread. BMW dealer flagged it today at a service, said there was a cord damaged and made me sign a disclaimer that I knew it "wasn't roadworthy" ! I took it to tyre place to see what they'd suggest. They said that whilst deep it's not affected the tyre's structural integrity as when any nail goes through a tyre there's always cords damaged and they can be repaired without issue, especially centrally places ones. They didn't see any point in a puncture repair as it's not actually punctured and they said there was still significant tread at the bottom of the hole and in effect was no deeper than the bottom of the channels anyway. Anyway, curious as to what others think! __________________ Current: Porsche 911 991 C4S, Porsche Cayenne Turbo, Land Rover Discovery 4. Gone...G01 X3 M40i, Cayman S 987, F31 340i, Cayman GT4, F82 M4 CP, Lotus Exige V6, G20 330e, F30 330e, Boxster S 987, F31 335d, Mini Cooper SD, E89 Z4, E90 330d 320d, E60 520d, E46 330d 320d, MX5s, E30 325i
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04-13-2017, 10:07 AM	#2
Tengocity General 8567 Rep 19,982 Posts Drives: 911, Cayenne Turbo, Disco 4 Join Date: Sep 2013 Location: Crieff, Perthshire, Scotland iTrader: (0)	Pics this time hopefully Attached Images __________________ Current: Porsche 911 991 C4S, Porsche Cayenne Turbo, Land Rover Discovery 4. Gone...G01 X3 M40i, Cayman S 987, F31 340i, Cayman GT4, F82 M4 CP, Lotus Exige V6, G20 330e, F30 330e, Boxster S 987, F31 335d, Mini Cooper SD, E89 Z4, E90 330d 320d, E60 520d, E46 330d 320d, MX5s, E30 325i
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04-13-2017, 10:08 AM	#3
Isow Major 319 Rep 1,030 Posts Drives: G20 330i MSport Join Date: Nov 2012 Location: Manchester UK iTrader: (0)	You know what others think. When it comes to safety,why take the risk. Replace the tyre.
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04-13-2017, 10:23 AM	#4
Tengocity General 8567 Rep 19,982 Posts Drives: 911, Cayenne Turbo, Disco 4 Join Date: Sep 2013 Location: Crieff, Perthshire, Scotland iTrader: (0)	Because I've got other things to do with my time and money if it's unnecessary! __________________ Current: Porsche 911 991 C4S, Porsche Cayenne Turbo, Land Rover Discovery 4. Gone...G01 X3 M40i, Cayman S 987, F31 340i, Cayman GT4, F82 M4 CP, Lotus Exige V6, G20 330e, F30 330e, Boxster S 987, F31 335d, Mini Cooper SD, E89 Z4, E90 330d 320d, E60 520d, E46 330d 320d, MX5s, E30 325i
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04-13-2017, 10:26 AM	#5
bimmer456 Major General 2966 Rep 6,003 Posts Drives: 340i Join Date: Nov 2016 Location: Pasadena, CA iTrader: (0)	It's worth it to get the tire warranty when you get new tires through BMW so if they deem it not road worthy they will replace it for free.
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04-13-2017, 10:32 AM	#6
Hartside Lieutenant 270 Rep 422 Posts Drives: 128ti Join Date: May 2014 Location: Northumberland iTrader: (0)	If it doesn't go beneath the tread block I would leave it. Looks like a screw has been embedded sideways.
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04-13-2017, 11:09 AM	#8
DougMcL Major 787 Rep 1,101 Posts Drives: BMW i4 40e, Honda Jazz Hybrid Join Date: Aug 2015 Location: Porto iTrader: (0)	Your dealer is just being daft. Looks absolutely fine to me.
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04-13-2017, 11:14 AM	#9
teaston Banned 10995 Rep 32,881 Posts Drives: X3 M40d Join Date: May 2012 Location: The High Seas iTrader: (1)	Absolutely fine for normal or even spirited road use imo. If taking the car on track or high speed on autobahn then possibly a different matter. I would want absolutely perfect tyres to do 150mph personally.
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04-13-2017, 11:39 AM	#12
Isow Major 319 Rep 1,030 Posts Drives: G20 330i MSport Join Date: Nov 2012 Location: Manchester UK iTrader: (0)	Any doubt, replace the tyre. Sorry.
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04-13-2017, 11:53 AM	#15
geordiepaul F31 330d M Performanced up. 109 Rep 464 Posts Drives: F31 330d Join Date: Sep 2014 Location: United Kingdom iTrader: (0)	Fill it with some superglue and be done with it.
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04-13-2017, 12:09 PM	#17
Drek Major 579 Rep 1,215 Posts Drives: Ferrari F430 F1 Join Date: Jan 2015 Location: West Berkshire iTrader: (0)	You know what dealers are like, err on the side of litigation always. Me? I'd go with your tyre dealer but for peace of mind might ask them to patch it up if they can. Funnily enough, I had my car serviced today as well and they spotted a bulge in the OSF tyre, no disclaimer to sign though. __________________ Ferrari F430 Spider F1 RRS Autobiography 2CV6 Special www.bmwland.org.uk
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04-13-2017, 12:10 PM	#18
PX3 Lieutenant 140 Rep 594 Posts Drives: X3 / F32 Join Date: Sep 2013 Location: South East iTrader: (0)	I assume it's a Runflat, if so I wouldn't worry about it!
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04-13-2017, 12:45 PM	#22
Soul_Glo Major General 13347 Rep 7,484 Posts Drives: G20 Join Date: May 2013 Location: Manhattan, NYC iTrader: (1)	I wouldn't worry about it. Don't use super glue as it can harden and puncture the tyre again. There are some rubber glues out there but probably bot suitable for car tyres. You can patch it in case though.
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