Tyres

Faults and Technical chat for the Volkswagen T-Roc
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Deleted user 925
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Re: Tyres

Post by Deleted user 925 » Wed Apr 14, 2021 11:03 pm

Hawkeye wrote:
Sat Sep 07, 2019 10:44 pm
So week 7 in 2018. That they are showing cracks in the treads is totally and utterly unacceptable. Do send off those pictures to the manufacturer and ask for their feedback, will be interesting to hear what they say and what they propose to resolve the issue.
Reviving an old post!

Sat on this a while but sent a couple of emails to bridgestone UK, here is their response.
The tyres are obviously worse than the original post particularly the front right.

Bridgestone reply
Thank you for the detailed close up photographs of the Bridgestone tyres fitted to your car.

Concerning the ‘cracking’ in the tyre shoulder grooves; this we have seen many times in the past (across many products, and most brands) where the top layer of surface rubber begins to oxidise and appears perished. We refer to this as ‘crazing’, as ‘cracking’ generally relates to splitting after force or trauma during operation.

The visible surface rubber crazing on your tyres is very minor and will pose no detriment to the vehicles safety of tyres performance.

It is worth noting that as part of tyre manufacturers’ compliance to environmental responsibility legislation, there are increased restrictions on the materials used in tyre construction.

‘Crazing’ can also be caused by other factors:
• Extended exposure to sunlight. (UV light dries out the anti-aging oils in the rubber which give a tyre it’s tackiness and elasticity).
• The application of ‘Tyre Dressing’. - Used by dealer forecourts and carwash companies mainly to make the sidewalls/shoulders of the tyres look ‘more black’. These can be quite strong and some are even mildly corrosive if used consistently over time.
• Poor pressure maintenance during the tyre’s life. This causes over flexing in the tyre casing eventually causing tyres to prematurely age.
• Exposure to contaminates. - Petrol, anti-freeze, motor oil, tyre ‘dressing’ (used on the sidewalls to appear more “black”).
• Regular, but short frequent trips in the vehicle (lack of use), where the tyres are heating up, then cooling down over a short period of time. (essentially preventing the aforementioned oils from percolating/migrating throughout the tyre fully). We add anti-aging oils into the rubber compound, however for these oils to be released the tyres need to get to an operating temperature. If the tyres are not used regularly then the releasing agents in the anti-aging oils are unable to percolate through the casing and ensure the tyre stays subtle.

The upside to this phenomenon is that ‘crazing’ only affects the top cap layer of rubber, so is only cosmetic in nature. - This type of appearance does not have any effect on the tyres handling or performance, and based on the appearance in the image provided we would advise that these tyres are ok to continue running. However as with any appearance-based condition reported in the market, we always advise to monitor the tyres regularly.

Please note that we take safety very seriously and we would never recommend you to continue using tyres that we thought were unsafe to use.
In their current conditions the tyres will not cause any detriment to the tyres serviceability or affect the cars dynamic performance abilities. If the tyres are well serviced and the correct tyre pressure is maintained the tyres will continue to provide an excellent service life.

We hope this info has helped, please let us know if there is any more info you require on this subject to assist with your enquiry.

Regards

******

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September 2018 1.5 tsi R-line manual,
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Impala
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Re: Tyres

Post by Impala » Thu Apr 15, 2021 6:09 pm

It might attract some strange looks, or worse, but it would be worth having a look at other cars' tyres when walking around a car park or even a dealer forecourt.

While you have to take Bridgestone at their word, I really think that 'crazing' is excessive rather than typical.
1.5 TSI DSG R-Line MY19 Indium Grey, rear view camera, park assist.
Ordered 22/06/18
Built w/c 25/03/19 :(
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Deleted user 925
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Re: Tyres

Post by Deleted user 925 » Thu Apr 15, 2021 7:48 pm

Impala wrote:
Thu Apr 15, 2021 6:09 pm
While you have to take Bridgestone at their word, I really think that 'crazing' is excessive rather than typical.
"Exactly"

I'm being brushed aside with bull shit & I bet you it's the same script they give to every similar case 🤷‍♂️

Those tyres would definitely fail the annual MOT in Northern Ireland, it's government run and strict.

It's peoples lives they're actually putting at risk. 🤔
September 2018 1.5 tsi R-line manual,
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twist
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Re: Tyres

Post by twist » Fri Apr 16, 2021 9:35 am

Deleted user 925 wrote:
Thu Apr 15, 2021 7:48 pm
Impala wrote:
Thu Apr 15, 2021 6:09 pm
While you have to take Bridgestone at their word, I really think that 'crazing' is excessive rather than typical.
"Exactly"

I'm being brushed aside with bull shit & I bet you it's the same script they give to every similar case 🤷‍♂️

Those tyres would definitely fail the annual MOT in Northern Ireland, it's government run and strict.

It's peoples lives they're actually putting at risk. 🤔
When I get into situations like this I tend to publicly shame them on Twitter. Post a couple of pictures of the tyres to their feed by tagging their official UK account, state the tyres age and ask if this is really normal as has been told to you by a Bridgestone representative. Make sure you mention that it seems like a safety issue and wonder if it affects all Bridgestone tyres. You want the post to make people consider their tyre choice unless the company do something about it.

You tend to find they quickly try to save face and offer a better solution than they do through private communication, specially with something regarding safety. Unless they’re DHL who didn’t give a shit that the delivery guy keeps coming to my door with his mask under his chin like a tosser.

I only do this sort of thing when I feel I’m being cheated or unfairly treated - which, unfortunately, is most of the time these days.
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Deleted user 925
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Re: Tyres

Post by Deleted user 925 » Fri Apr 16, 2021 12:26 pm

twist wrote:
Fri Apr 16, 2021 9:35 am

When I get into situations like this I tend to publicly shame them on Twitter.
I'm not into social media and not sure if I would go down that route anyway, although you are correct.

I'll probably just change them coming up to its first MOT along with the front brake discs and pads and that's another story 🤷‍♂️
September 2018 1.5 tsi R-line manual,
revena blue,
black roof,
towbar.

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