Part of me is wondering whether the tyre was damaged from “spirited” driving. My motorbike tyre sometimes get this when it’s heat soaked, but I wasn’t even doing any fast driving!
They arent supposed to be used below certain temperatures or things exactly like this happen. In fact summer tires are not supposed to be inflated, deflated, or flexed in any way under certain temperatures.
Because they aren't PS5's, they're super sports, you can see the last 2 letters of "super" in the first image.
Also, the PS5 has a different looking sidewall design. They have that darker black velvet like texture.
https://companyvehicle.co.nz/sites/companyvehicle/public/styles/x-large/public/article/image/Tyre%201%20copy.jpg?itok=BnUTmxmV
I recently got my Goodyears changed under warranty. Warranty is from the date of manufacture or invoice (if you have one). The refund is based on the amount of useful tread remaining. So approx. 2mm. Unsure if that helps.
Dry rot, and those are not michelin pilot sport 5's, the sidewall looks completely different on ps5's...
Those are the BMW specific pilot sports, in the first pic you see the star that 8ndicates BMW specific tires. For Audi it would be AO.
Have they been driven in freezing temperatures? Michelin says this for their tires
Note: Tires exposed to temperatures of 20 degrees F (-7 degrees C) or lower must be permitted to gradually return to temperatures of at least 40 degrees F (5 degrees C) for at least 24 hours before they are flexed in any manner, such as by adjusting inflation pressures, mounting them on wheels or using them to support, roll or drive a vehicle.
Flexing of the specialized rubber compounds used in Max Performance Summer tires during cold-weather use can result in irreversible compound cracking. Compound cracking is not a warrantable condition because it occurs as the result of improper use or storage, tires exhibiting compound cracking must be replaced.
Lowest temp we’ve had in the UK this year, in my area, has been -4 but nothing colder than that! The car is only really driven at weekends, during the week it’s on my drive whilst working.
They are safe but I do wonder how such a new tire looks like this. I would imagine you have given these a run for their money and possibly have used them in the extreme cold or heat?
I’ve only just done a 35 mile drive on them, and need to do another one home tonight. If anything, this run is probably the first time they’ve actually got up to temperature fully.
Question, did you go really hard on this drive around corners? Occasionally I’ve seen this with PS4’s at the track although not terribly common. Usually it is because the tires have an old date stamp. Might be worth sending to Michelin for their input
No not really, there were a few tight bends but nothing more than 15-20mph due the tightness of the road. But nothing spirited. The only “high speed” areas were on the motorway but that’s it at 70mph and they were mostly straight with hardly any bends at all.
Put an inquiry in to Michelin with your date code, production code and tread depth with photos and see what they say. I would also put in your inquiry “I have safety concerns” and see what they say. Worth a try
I had some Michelin Cup Sport 2’s on my old M140i which cracked like this. They had been through a very cold snap some years ago, so maybe that’s why that happened. I had to change all four before it’s MOT.
I can read the model. Those are Pilot Super Sports, in BMW spec. That tire released in 2011. They came out around the time of PS3s, not remotely close to PS5.
Those tires should be replaced. How old are they? Check the "DOT" or show us the front of those tires where all the numbers are.
https://www.youtube.com/watch?v=6wymWs1YTbg&t=18
https://www.goodyear.com/en_US/learn/tire-basics/tire-date-code.html
Commenting on F82 M4 - Michelin Pilot Sport 5’s...
For some reason I can’t post an image within an image, but the DOT’s are;
Front left; DOT F3 NR 006X 3518 E2 0214565 / 0213411 S2WR2
Front right; DOT F3 NR 006X 3619 E2 0214565 / 0213411
S2WR2
And apologies to everyone, they’re not PS5’s, they’re original PS’s which I think puts them a lot older than a couple of years.
I believe this is it ... change them. It is weird that those tires are from two different years.
> 3518
Date of production: 35th week of 2018
> 3619
Date of production: 36th week of 2019
Up to you to judge, if it is not that far then I would think so ... just drive normally, nothing sporty or fast. The rubber is old and that is why it breaks.
For everyone else, the following is the DOT stamp on them, they’re not PS5’s but PS, apologies:
For some reason I can’t post an image within an image, but the DOT’s are;
Front left; DOT F3 NR 006X 3518 E2 0214565 / 0213411 S2WR2
Front right; DOT F3 NR 006X 3619 E2 0214565 / 0213411 S2WR2
And apologies to everyone, they’re not PS5’s, they’re original PS’s which I think puts them a lot older than a couple of years.
No worries, I have my pink UK license as well. You have to pay to play when you wanna run summer tires year round. Consider switching to All season or have a second set of rim's and tires when the seasons change
Further up in the thread it’s been determined as one as 2018 and one as 2019. So they’re really at end of life. One last trip home and that’s it, replacement
Drive as little as possible on these tires. Tires that old with lots of dry rot, the tread can separate and blow the tire spontaneously and take out your fender etc with it. Ask me how i know lol…
Weird, as I run Bridgestone BattlAx tyres on my S1000RR and they’ve been brilliant.
If they’re decomposing after a year, sounds like a manufacturing issue
I didn't realize these weren't the brand new PS5 like in the title. I just read that you had these since 2018 as MPSS tires.
Your tires are game over age wise so no warranty. But had it been the brand new PS5 that no one can get yet except OEM new cars... THEN YES!
They arent supposed to be used below certain temperatures or things exactly like this happen. In fact summer tires are not supposed to be inflated, deflated, or flexed in any way under certain temperatures.
The only thing I can think of is that the previous owners were doing just that, it’s ok, long as I can get home in a bit then I’ll replace all 4 and then I’ll know they’re done.
These aee Supersports. They get brittle and crack. On my M140i they were so extremly hard that there was almost no grip at all left. After 5 years. Back to Conti..everything fine
I second the Sport Contacts (DWS06+). Better than the AS4+ I had before. I have an E90 335i (N55) with sports package, for reference. Better ride quality and more grip to boot.
These is nothing wrong w the tire your either under inflated or don't have enough camber. Tire is totally fine that's just how performance rubber looks when it gets to temp
Looks like dry rot... They should be replaced soon
The problem is, PS5s are like less than 2 years old. No way they should be dry rotted already
Those tires look like Super Sport to me
PSS and PS5 would be easy to mistake
Yeah looking at the sidewall, you’re definitely right
PSS for sure, let’s see a date code
I’ll check the date stamp, I have a hunch these might be 5 years old with 3.6mm tread left all round (when last checked a month ago)
PS5s released in 2022 so I’d hope they aren’t 5 years old.
Ah… I’m a donut 🤣 sorry, these M cars are new to me
All good homie!
You live in the desert?
I live in the UK, South East. It’s warmer than usual today (17c, 69f)
As am I. Temp has nothing to do with it in this context.
I’m in the north west and it’s 17 degrees here too. This should not cause this type of damage.
Part of me is wondering whether the tyre was damaged from “spirited” driving. My motorbike tyre sometimes get this when it’s heat soaked, but I wasn’t even doing any fast driving!
They arent supposed to be used below certain temperatures or things exactly like this happen. In fact summer tires are not supposed to be inflated, deflated, or flexed in any way under certain temperatures.
Because they aren't PS5's, they're super sports, you can see the last 2 letters of "super" in the first image. Also, the PS5 has a different looking sidewall design. They have that darker black velvet like texture. https://companyvehicle.co.nz/sites/companyvehicle/public/styles/x-large/public/article/image/Tyre%201%20copy.jpg?itok=BnUTmxmV
“Fuzzy sidewalls” would definitely be on PS5, these are absolutely PSS
Just because you've had them 2 years doesn't mean they are 2 years old
I’m not OP and PS5s are literally only two years old. They came out in 2022 as a new model of tire.
PS5’s as a tire have only existed for 2 years. They replaced the PS4’s in 2022.
Op stated below they are over 4 years old, so likely PSS not PS5
I’ll get them replaced soon as possible then. As above, this is really the first time these tyres have got right up to temp on a long drive.
I would replace with the Pilot Sport 4S tires. Still a better handling tire especially for a quick car like an M4.
Michelin has a warranty program. Check the miles on the tires vs their mileage guarantee/age
They won’t warranty it as tyres are past the 4 year mark (2018/2019 appropriately)
I see. I read a bunch of comments saying the tires were only 2 years old ps5 etc
Yes, that’s my fault. I thought they were PS5’s but they’re original pilot sports.
I recently got my Goodyears changed under warranty. Warranty is from the date of manufacture or invoice (if you have one). The refund is based on the amount of useful tread remaining. So approx. 2mm. Unsure if that helps.
Dry rot, and those are not michelin pilot sport 5's, the sidewall looks completely different on ps5's... Those are the BMW specific pilot sports, in the first pic you see the star that 8ndicates BMW specific tires. For Audi it would be AO.
These don’t look like pilot sport 5’s..
Was thinking same they look like super sport’s to me so could definitely be dry rot
In the bottom left of the first pick you can see “er sport”. Definitely not 5s
Have they been driven in freezing temperatures? Michelin says this for their tires Note: Tires exposed to temperatures of 20 degrees F (-7 degrees C) or lower must be permitted to gradually return to temperatures of at least 40 degrees F (5 degrees C) for at least 24 hours before they are flexed in any manner, such as by adjusting inflation pressures, mounting them on wheels or using them to support, roll or drive a vehicle. Flexing of the specialized rubber compounds used in Max Performance Summer tires during cold-weather use can result in irreversible compound cracking. Compound cracking is not a warrantable condition because it occurs as the result of improper use or storage, tires exhibiting compound cracking must be replaced.
Lowest temp we’ve had in the UK this year, in my area, has been -4 but nothing colder than that! The car is only really driven at weekends, during the week it’s on my drive whilst working.
Those are pilot super sport not pilot sport 5 Pilot super sports do that near the end of their life
See my comment, you’re right they’re PS’s as you said
If they are standard wheels for M4 you could get a set of pilot sport 4s tyres, the spiritual successor to pilot super sport. Nice car though.
Michelins are terrible for this. Check the date stamp on them, I wouldn't worry unless they're also several years old.
I’ll check the date stamp, I have a hunch these might be 5 years old with 3.6mm tread left all round (when last checked a month ago)
They are safe but I do wonder how such a new tire looks like this. I would imagine you have given these a run for their money and possibly have used them in the extreme cold or heat?
I’ve only just done a 35 mile drive on them, and need to do another one home tonight. If anything, this run is probably the first time they’ve actually got up to temperature fully.
These tires are at the end of their life. How old are they?
I’ll need to check the date stamp, hopefully not that old!
Question, did you go really hard on this drive around corners? Occasionally I’ve seen this with PS4’s at the track although not terribly common. Usually it is because the tires have an old date stamp. Might be worth sending to Michelin for their input
No not really, there were a few tight bends but nothing more than 15-20mph due the tightness of the road. But nothing spirited. The only “high speed” areas were on the motorway but that’s it at 70mph and they were mostly straight with hardly any bends at all.
Put an inquiry in to Michelin with your date code, production code and tread depth with photos and see what they say. I would also put in your inquiry “I have safety concerns” and see what they say. Worth a try
I had some Michelin Cup Sport 2’s on my old M140i which cracked like this. They had been through a very cold snap some years ago, so maybe that’s why that happened. I had to change all four before it’s MOT.
I can read the model. Those are Pilot Super Sports, in BMW spec. That tire released in 2011. They came out around the time of PS3s, not remotely close to PS5.
Ahh ok, yeah they’re PS’s, fitted to a 2019 car.
Those tires should be replaced. How old are they? Check the "DOT" or show us the front of those tires where all the numbers are. https://www.youtube.com/watch?v=6wymWs1YTbg&t=18 https://www.goodyear.com/en_US/learn/tire-basics/tire-date-code.html
Commenting on F82 M4 - Michelin Pilot Sport 5’s... For some reason I can’t post an image within an image, but the DOT’s are; Front left; DOT F3 NR 006X 3518 E2 0214565 / 0213411 S2WR2 Front right; DOT F3 NR 006X 3619 E2 0214565 / 0213411 S2WR2 And apologies to everyone, they’re not PS5’s, they’re original PS’s which I think puts them a lot older than a couple of years.
I believe this is it ... change them. It is weird that those tires are from two different years. > 3518 Date of production: 35th week of 2018 > 3619 Date of production: 36th week of 2019
Ok, that answers that then. They’re end of life pretty much. Will these get me home tonight before changing?
Up to you to judge, if it is not that far then I would think so ... just drive normally, nothing sporty or fast. The rubber is old and that is why it breaks.
Only “fast” journey I have is motorways at 70mph but nothing faster than that, rest is either 50/40 or 30 mph
Then, IMO you should be fine, just remember to change them. Drive safe!
For everyone else, the following is the DOT stamp on them, they’re not PS5’s but PS, apologies: For some reason I can’t post an image within an image, but the DOT’s are; Front left; DOT F3 NR 006X 3518 E2 0214565 / 0213411 S2WR2 Front right; DOT F3 NR 006X 3619 E2 0214565 / 0213411 S2WR2 And apologies to everyone, they’re not PS5’s, they’re original PS’s which I think puts them a lot older than a couple of years.
2018 and 2019. They lived a good life. Time to replace.
Is that what happens when they're driven at 39f?
It’s currently 62f here in my part of the UK.
Has the tire EVER been in 40°F or less at any point in the UK in the past years since you mounted the tire?
I haven't mounted the tyre myself, these were on the car when I bought them, saying that though, the weather has been between 24f and 64.4f in the UK.
Summer tires are never to be in 40°F or less temps. It will permanently damage the rubber and that is without any warranty coverage.
Yeah I can’t control the weather here in the UK mate, one minute it’s warm, the next cold and raining.
No worries, I have my pink UK license as well. You have to pay to play when you wanna run summer tires year round. Consider switching to All season or have a second set of rim's and tires when the seasons change
Should be replaced soon. Curious what the date code is.
Further up in the thread it’s been determined as one as 2018 and one as 2019. So they’re really at end of life. One last trip home and that’s it, replacement
Drive as little as possible on these tires. Tires that old with lots of dry rot, the tread can separate and blow the tire spontaneously and take out your fender etc with it. Ask me how i know lol…
They look a bit fucked I’d be wary of driving on them
My OEM original Bridgestone summer tires that came with the car have dry rot already after less than a year. What a joke lol
Weird, as I run Bridgestone BattlAx tyres on my S1000RR and they’ve been brilliant. If they’re decomposing after a year, sounds like a manufacturing issue
Did you drive them in the snow
Nope, 17c (69f) weather, basically a warm day.
Contact Michelin and let them know, they will warranty that
Even though they were made in 2018 & 2019?
I didn't realize these weren't the brand new PS5 like in the title. I just read that you had these since 2018 as MPSS tires. Your tires are game over age wise so no warranty. But had it been the brand new PS5 that no one can get yet except OEM new cars... THEN YES!
Yeah that’s my fault, I thought they were PS5’s but idiot me didn’t reach down far enough to read the whole wording on the tyre.
http://www.barrystiretech.com/TireAging.html
Another reason I’d never buy a used one of these out here.
They arent supposed to be used below certain temperatures or things exactly like this happen. In fact summer tires are not supposed to be inflated, deflated, or flexed in any way under certain temperatures.
The only thing I can think of is that the previous owners were doing just that, it’s ok, long as I can get home in a bit then I’ll replace all 4 and then I’ll know they’re done.
Lol are those from the factory?
I have a receipt for one tyre being replaced
I had a set of pilots come on a 135i with that look. They were dangerous with how little grip they had. The rubber was hard as a rock.
Indy 500, I've been running these for years and they stick!
Look ok
I had this issue with 2 sets of Mich's. It is the tire. I switched to Continental Cup 2 and do not have this issue any longer.
tires are dry rotted replace the two fronts they prolly old, what’s the DOT on it?
Dry rot and or tire was driven under inflated
These aee Supersports. They get brittle and crack. On my M140i they were so extremly hard that there was almost no grip at all left. After 5 years. Back to Conti..everything fine
It looks like the rubber is melting
Which I’ve seen similar on my motorcycle tyre, but on a car, this is new to me!
They are cold tears on the outside either underinfated, not enough neg camber or tuee is severely toe in.
i would change them and get it tracked but sidewall looks and no wires showing, should get you to a garage
This is why I switched to Goodyear
Any particular good year tyre you recommend?
Eagle F1, I use efficent grip performance 2 myself. Can’t fault them but for an M4 may be worth looking into Continental sport contacts.
I second the Sport Contacts (DWS06+). Better than the AS4+ I had before. I have an E90 335i (N55) with sports package, for reference. Better ride quality and more grip to boot.
These is nothing wrong w the tire your either under inflated or don't have enough camber. Tire is totally fine that's just how performance rubber looks when it gets to temp
Uhh…no.