There are 2 owner-reported fuel system complaints for the 2015 BMW M3in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
Fuel tank top weld has failed, and is actively leaking fuel. This is likely to cause ignition of the vehicle during use and poses a threat to the lives of passengers and other drivers on the road as well as emissions failure. The failed weld was confirmed by independent Bmw technician. This part is a known failure point, and emission extended warrantee has been established for identical cars of the given make/model/year. The car has limited miles, no structural or cosmetic damage causing this failure. The car is not drivable as it poses a threat to safety.
Gas tank has a significant leak. This allows for the opportunity to ignite the car putting all persons lives in danger, and effects emissions. Problem has been confirmed by independent Indy shop technician
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 26, 2026