There are 1 owner-reported body & structure complaints for the 2009 Mercury Marinerin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
THE UNDER BELLY OF MY VEHICLE IS ALL RUSTED. *TR
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