ALL FOUR TYRES FAILING
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MBWorld Fanatic!
Joined: Mar 2008
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From: 1 hours drive north of Sydney Australia
2007 W204 220CDI Classic Sedan
ALL FOUR TYRES FAILING
This is a technical forum so have posted here too.
All four ( front & rear ) of my Bridgestone Turanza ER300 205/55/16 have developed deep cracks down to the wire .
The cracks are about 10mm 15mm long & only on the inner shoulder of the tyre.
The number of cracks on each tyre varies from 2 to 3 at this stage & they are 3 to 5 mm deep.
They actually look like damage ie cuts but I cannot believe that this is the case as they all have occured on the inner shoulder. It appears to me that the rubber in this area is opening up under the stresses of cornering.
The rear tyres had nearly worn down to the wear strips ( 34,000km) but the fronts have 2.75 mm of tread above the wear strips to go ( 45,000km.).
I would be be grateful to know whether anyone else has experienced this & would welcome any comment as to why it would happen .
A certain South African ! ( thank you) recommended Mitchelin Primacy HP for country roads . They receive good writeups regarding wear & performance .Seems I will be purchasing them next week.
All four ( front & rear ) of my Bridgestone Turanza ER300 205/55/16 have developed deep cracks down to the wire .
The cracks are about 10mm 15mm long & only on the inner shoulder of the tyre.
The number of cracks on each tyre varies from 2 to 3 at this stage & they are 3 to 5 mm deep.
They actually look like damage ie cuts but I cannot believe that this is the case as they all have occured on the inner shoulder. It appears to me that the rubber in this area is opening up under the stresses of cornering.
The rear tyres had nearly worn down to the wear strips ( 34,000km) but the fronts have 2.75 mm of tread above the wear strips to go ( 45,000km.).
I would be be grateful to know whether anyone else has experienced this & would welcome any comment as to why it would happen .
A certain South African ! ( thank you) recommended Mitchelin Primacy HP for country roads . They receive good writeups regarding wear & performance .Seems I will be purchasing them next week.
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From: USA
Marsaydees
Take pics of your tires.
Sounds like an alignment issue. If the inner part of the tire is worn down as much as you say then I suspect your car has way too much negative camber. Is your car lowered? Be sure to get an alignment with your next set of tires.
Sounds like an alignment issue. If the inner part of the tire is worn down as much as you say then I suspect your car has way too much negative camber. Is your car lowered? Be sure to get an alignment with your next set of tires.
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Joined: Jun 2008
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Sounds like a rubber compounding problem to me. A version of graining. I would ask Bridgestone to comment.
Presume the cracks run radially?
Presume the cracks run radially?
Thread Starter
MBWorld Fanatic!
Joined: Mar 2008
Posts: 3,714
Likes: 56
From: 1 hours drive north of Sydney Australia
2007 W204 220CDI Classic Sedan
Thank you Dingleberry & Glyn,
The car has had no modifications & is driven sedately.
I would say the cracks run more radially than not.
A few attached pictures tell a thousand words !.
I would expect the worn out rear to be a bit rough around the edges but the fronts should have enough rubber in that area to hold things together.
I have not rotated the tyres purposefully so to understand how the car wears tyres & therefore make the best of rotations in the future. Irish ?
Thank you for your help.
The car has had no modifications & is driven sedately.
I would say the cracks run more radially than not.
A few attached pictures tell a thousand words !.
I would expect the worn out rear to be a bit rough around the edges but the fronts should have enough rubber in that area to hold things together.
I have not rotated the tyres purposefully so to understand how the car wears tyres & therefore make the best of rotations in the future. Irish ?
Thank you for your help.
Super Member
Joined: Aug 2009
Posts: 983
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From: USA
Marsaydees
Wow, those tires are are crap. Can you find the date of manufacturing on them? Those look like 8 year old dry rotted tires to me. Your camber doesn't look too bad, I would still get an alignment with your new tires.
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Joined: Jun 2008
Posts: 19,942
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Hmm! - not good. I would ask Bridgestone. They make pretty good tyres. It could be a burst minor delamination or non homogenous rubber mix. That is not graining.
With your non staggered setup rotate corner to corner to change rolling direction every 10,000Km.
With your non staggered setup rotate corner to corner to change rolling direction every 10,000Km.
