Sidewall hernia... cause?

[sapindy]

I have had 3 tires on the same wheel (passenger rear) develop bubbles on the inboard (vehicle) side.
What could cause this?
Rear Alignment?
mounting damage?
I have seen no wear irregularities and have rotated the wheel so i do not think it is caused by the rim.
Any help in diagnosing this will be appreciated
thx

[samger2]

I know you're going to say "I've not hit anything"...but that's what causes bubbles in the sidewall. Smacking a curb, hitting a pothole...something causes impact on the side of the tire which causes it to bubble.

It's no different than a blood blister on your hand...doesn't appear out of nowhere...it happens because you smack the area hard enough.

That's pretty much the only way tires develop the bubbles. I'm assuming this is a low profile tire? They're much more common with the low profile tires...there's very little sidewall to absorb any kind of impact...such as a pothole in the road...therefore the impact causes the damage.

[sapindy]

I hear you ... in fact it is a low profile tire ...
but I am not ready to drink your kool-aid
After the first time I was told the pothole-curb explanation...
so i paid attention to where i was driving and what i contacted...
after the second time i moved the tire/wheel assembly to the left side ...
and now i am checking here ....
if it was on the ouside sidewall or the front wheel i might be picking up the glass ...
but inner rear means that i am consistently smacking a pretty sheltered spot and not smacking any of the more exposed areas.
it would be like hitting the inside lower part of your index finger with a hammer instead of your thumb...

so i am looking for an alternate cause...

[e36AWM3]

samger2
I know you're going to say "I've not hit anything"...but that's what causes bubbles in the sidewall. Smacking a curb, hitting a pothole...something causes impact on the side of the tire which causes it to bubble.

It's no different than a blood blister on your hand...doesn't appear out of nowhere...it happens because you smack the area hard enough.

That's pretty much the only way tires develop the bubbles. I'm assuming this is a low profile tire? They're much more common with the low profile tires...there's very little sidewall to absorb any kind of impact...such as a pothole in the road...therefore the impact causes the damage.

I'm gonna agree with samger2 on this one. I work at a shop and the only time I've seen bubbles in the sidewall of a tire, it has been caused by impact damage. If this is occurring on your '08 535 I'm not surprised one bit. That car is equipped with runflat tires, if I'm not mistaken. The sidewalls on runflats are VERY stiff and it doesn't take much to make the sidewall delaminate from the tire, causing a bubble. Take it for what's worth. You may not have hit anything that hard but it doesn't take much, especially with runflats.

[easymoney]

I know you're going to say "I've not hit anything"...but that's what causes bubbles in the sidewall. Smacking a curb, hitting a pothole...something causes impact on the side of the tire which causes it to bubble.

It's no different than a blood blister on your hand...doesn't appear out of nowhere...it happens because you smack the area hard enough.

That's pretty much the only way tires develop the bubbles. I'm assuming this is a low profile tire? They're much more common with the low profile tires...there's very little sidewall to absorb any kind of impact...such as a pothole in the road...therefore the impact causes the damage.

Look no further but that's the cause of your inquiry and nothing else!

[mryakan]

If you don't want to take the opinion of these experienced gentlemen, then let me quote Kramer with a slight modification "Why don't you just tell me what reason you want to hear"?
Seriously dude, they are not lying to you.

[95DaytonaM3Gal]

If you don't want to take the opinion of these experienced gentlemen, then let me quote Kramer with a slight modification "Why don't you just tell me what reason you want to hear"?
Seriously dude, they are not lying to you.

hahaha +1 sorry to hear, that sucks. I've done it before on brand new not even a week old tires. Its not fun at all. But i will admit, it was late and i smacked a huge pot hole hard core so i guess thats what i get for being tired!

[sapindy]

I will submit to the consensus ...
but i remain skeptical ...
it was not on my 5 ... but on my 323 vert... albeit with LPTs