There are 1 owner-reported tires & wheels complaints for the 2021 MINI Cooperin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
Tire model is: Hankook Ventus S1 Evo Z 225/35R18 87Y. Failure started when vehicle turned the "CHECK TIRE PRESSURE" alert on while driving. Pressure started to drop from 32 lbs to 16 lbs in about 15 minutes. Worth to note: no pot hole or any other object was hit during the day of the incident; or even previous days. After stopping, I noticed that the failure occurred in the inner face of the tire. Inner face was pretty degraded and inner treads were visible. A 15 inch long breakage line was visible. Car has 18k miles on it. When comparing the tire that failed to the rest, its degradation was much higher.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 25, 2026