Bizarre RR Velar tyre issue
Discussion
Can anyone explain this head scratcher.
This is for a friend but he's had 2 blow outs, one on each rear tyre, on his new (3yr old) Velar. Both at high speed on a motorway (not sure if the suspension adjusts at high speed).
Both times there is a rumbling sound for an hour or more at over 50mph. Obviously he stopped during this time and inspected it thoroughly but could see anything strange. No warning light on the dash at this time.
Then all of a sudden, bang, it goes and the tyre warning light appears.
I can't see anything rubbing in the arch. I can't see normal springs (guess these don't have them?).
Take a look at the pictures and see if you can come up with any ideas please.
This is for a friend but he's had 2 blow outs, one on each rear tyre, on his new (3yr old) Velar. Both at high speed on a motorway (not sure if the suspension adjusts at high speed).
Both times there is a rumbling sound for an hour or more at over 50mph. Obviously he stopped during this time and inspected it thoroughly but could see anything strange. No warning light on the dash at this time.
Then all of a sudden, bang, it goes and the tyre warning light appears.
I can't see anything rubbing in the arch. I can't see normal springs (guess these don't have them?).
Take a look at the pictures and see if you can come up with any ideas please.
I wonder if the tyre carcass has been previously damaged, causing localised bulging in the centre; that might explain the rumbling sound and the high wear in the worn patch. Judging by the micro cracking and the wear in the rest of the tyre they were past their best.
When he replaces them he'll just need to inspect them more often, to hopefully catch this kind of issue before they fail.
When he replaces them he'll just need to inspect them more often, to hopefully catch this kind of issue before they fail.
That tyre has had a previous puncture repair, you can just about see the plug directly in line with the cut in the central groove (or what's left of it). That would indicate that the carcass was flexing a bit more there, hence the higher wear rate in that spot, and put it under a bit more stress.
jhonn said:
I wonder if the tyre carcass has been previously damaged.
That's the way it looks to me. I wonder whether the previous owner did some serious off-roading over sharp rocks, perhaps with the tyre pressure reduced for better grip? Or possibly that centre wear is gross over-inflation? Who knows.
Either way, if that was my car and both rears had blown I'd definitely be taking the fronts off to have a look inside their carcasses. Might even just replace the lot for peace of mind.
That tyre has a MASSIVE flat spot.
Watch this from 6.30 or 10.20 https://youtu.be/mkHCYUxDFxY?feature=shared
Watch this from 6.30 or 10.20 https://youtu.be/mkHCYUxDFxY?feature=shared
Edited by gmasterfunk on Sunday 31st March 14:23
Torquey said:
Different rims, but both rear.
Rims don't look oval and no noticeable damage to them at all.
It won't be ovality if it's different rims.Rims don't look oval and no noticeable damage to them at all.
L322 FFRR suspension drops at 100mph+, so this one might do as well.
If there is no rubbing in the wheel arch, the suspension dropping won't be the cause.
As virtually everyone has said above the tyres (if both looked the same) have sustained significant damage in the past and have quite simply failed.
I recently bought a motorhome which had cheap sh!t tyres, with the natural thought to factor in the price to change them.
When I got it home I checked tyre pressures & found all were low, so pumped them to the correct pressures for the vehicle & noticed that all then looked like they were filled with spuds rather than air there were so many lumps.
These were correctly rated tyres for the task & were all under 1 year old, they all got changed the next day.
ETA.
When you get new tyres fitted, specifically ask for the wheels to be checked for bends etc as there could very likely be underlying issues with the wheel.
I recently bought a motorhome which had cheap sh!t tyres, with the natural thought to factor in the price to change them.
When I got it home I checked tyre pressures & found all were low, so pumped them to the correct pressures for the vehicle & noticed that all then looked like they were filled with spuds rather than air there were so many lumps.
These were correctly rated tyres for the task & were all under 1 year old, they all got changed the next day.
ETA.
When you get new tyres fitted, specifically ask for the wheels to be checked for bends etc as there could very likely be underlying issues with the wheel.
Edited by E-bmw on Monday 1st April 12:06
Panamax said:
That's the way it looks to me.
I wonder whether the previous owner did some serious off-roading over sharp rocks, perhaps with the tyre pressure reduced for better grip? Or possibly that centre wear is gross over-inflation? Who knows.
Either way, if that was my car and both rears had blown I'd definitely be taking the fronts off to have a look inside their carcasses. Might even just replace the lot for peace of mind.
Another vote here for previously damaged carcass. Abused off-road, or second hand, recovered from accident damaged scrapped car, take your pick. What make are they?I wonder whether the previous owner did some serious off-roading over sharp rocks, perhaps with the tyre pressure reduced for better grip? Or possibly that centre wear is gross over-inflation? Who knows.
Either way, if that was my car and both rears had blown I'd definitely be taking the fronts off to have a look inside their carcasses. Might even just replace the lot for peace of mind.
edit.
A victim of the loathsome idiotic Tyre Extinguishers, and driven flat?Edited by 5s Alive on Monday 1st April 18:36
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