[SAZMan]

I have about 7000 miles on my 330i, tires are stock. Few weeks ago I noticed these blebs on the passenger side tires, worse in the back than the front. My car is a daily driver. Does anyone know what happened? Is this a warranty issue? Is my only option to get new tires? Any help is appreciated.

 

[Nick325xiT 5spd]

potholes. replace asap.

 

[SAZMan]

Thanks for the quick response. I've never seen this before, and I have been around potholes with other cars. Is it because of the quality of tires I have? Would better tires prevent this from happenening? Or maybe there is some other factor which I am unaware of?

 

[Nick325xiT 5spd]

Contis are famed for this.

 

[Pinecone]

Pot holes i smost likely, or High speed on hot sunny days can do this from overheating the tire carcass.

But those blebs are delaminations of the tire structure and are actually air bubbles in the tire. Replace ASAP, do NOT drive them at highway speeds. You are ricking a blow out.