I guys, I have driven this volvo s90 for the past 6 months. When I bought it, the tires looked new (only 13k km on it).

Since then, I have driven around another 15k on it, so it is around 28k km now. During my time driving it I noticed the front two tyres have some crazy and unusual wear. The thread on the wheels look like its peeling off, and it happens all around the tyre, not just a particular spot. So from new looking, it now looks like the photos attached.

However the back two tyres still look like new and does not show much wear. So its clear it only affects the front tyres.

Anyone can explain why and is it still safe to use?

Tire was manufactured on week 40, year 2018. Pilot Sport 4 255/40/r19 100w.

The volvo s90 can accelerate quite fast and I floored the car a few times (5 times), could it be the acceleration is too fast for the wheels and hence the extreme wear??

Hoping for some advice on what I need to do, and how to avoid it in the future, thank you!




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Remanufactured tires?

1. Very old tyre. Check the manufacturing date.
2. Retread? Cos retreads will have this kind of peeling off problem. But usually they are used for buses and lorries...

Or do you drive thru say factory or construction areas with corrosive ground liquids?

Nope. The only wear I can think of is driving fast with sudden acceleration. The car does 0-100 in 5.5secs and I floored it a few times.

This surely places a hugh demand on the tyres .
Having said that , I suspect it could be tyre tread peeling off problem .... which is a form of manufacturing defects .
Besides, Michelin typically warranties for 6 years .
You may have a case against Michelin .

This post has been edited by zeng: Jan 1 2021, 09:22 PM

ah...the infamous chipping problem... ps3, ps3 st, ps4 all got this problem when driven/corner hard... can kena also if just turn wheel without car moving...this creates tear in the rubber...yours looks quite bad actually...

Is it really so infamous? I also think maybe its true also that the ps range has this issue. Wonder PS 4 S also suffer from similar fate?

Anyway will try to claim warranty and see how.

Yes, it's the main issue with PS3/4 when driven aggressively quite often. I drove mine until even worse than yours and until almost bald too. Still ok to drive but you just observe from time to time. As the tires get older and less than 50% tread level, the chipping will get worsen. If the chunks are big enough like some on yours then it might reduce the cornering grip so just be aware. I don't think you can claim warranty though coz too high mileage already. Most people won't experience that also because they don't drive aggressive enough to encounter it.

This post has been edited by 6UE5T: Jan 3 2021, 12:25 PM

Ouch , that's rather unfortunate for TS .

Any explanation for this tread peeling problem phenomenon in terms of Materials or Manufacturing ? Something wrong with Michelin rubber/silica material ?

This post has been edited by zeng: Jan 3 2021, 09:49 PM

Don't know, I am not a tire engineer. Not sure also if PS3/4 made in other countries also have the same issue coz we only get the Thai made PS3/4 here. Last time I used F1D5 made in China also had the same chipping issue. These 3 had the most chipping of all tires I had tried before. The rest had much less or minimal only.

Seems ps3,4,some conti common issues eh? I kena at 8k km,claim warranty

This is not issue, for them it is the nature of premium tires. Coz in order to get comfort and better braking distance your rubber compound need to be soft, then softer material will be easier to chip wear off. If you dont want to see this condition, just buy those cheap budget tires from Indonesia or Thailand where the rubber compound is harder and you will know the disadvantage (which is opposite of what premium tires does).

But the breakages is abnormal, it chips off by chunks

week 40 2018, its about time to change them

I have used from Michelin, Bridgestone, Pirelli, Continental & even Yokohama tires also same. Ask tires shop, luckily is my best friend he told me treads are made to wistand the harse road condition if still within safety limit just use it unless got serious crack on the side wall or inner treads (long deep cracks). The rubber only chips off on the edge and not whole tire piece drop off and below still got so many layers (do you know how thick is the treads?!?) before consider dangerous to drive.

If you never been in track/gymkana racing, those chip off are nothing and mostly driven until tread near finish (reach safety level) and change. FYI, in order the tire to be in dangerous or burst usually is either over or under air pressure, tread wear finish until can see the metal mesh (that is the most dangerous limit) as metal mesh will heat up and melt the rubber and burst (u can see tires got a lot of sparks, flames and smoke before it burst). To drive until this extream limit, you need a lot of balls to drive the tires without treads (really botak)

This post has been edited by littlefire: May 7 2024, 10:34 AM

Ya been changing tyres yearly,and multiple brands mostly the hankooks, whack tyres hard with soft compiunds n for 25yrs+ usage never faced this kind before

my ps3 chipping because corner hard... the tearing is more horizontal / shallow surface layer

a lot of folks... the tearing is more vertical into the thread... imho this type of chipping is because turning steering wheel when car is stationary normally during parking... this twisting of the contact patch to change tyre direction causes the tearing...

don't turn the steering if the car is not moving should reduce/eliminate this type of tearing

Premium tires wont be able to eliminate, need to live with it. Either way will still chip or tear off due to soft rubber compound.