There are 1 owner-reported fuel system complaints for the 2003 Mercedes-Benz S-Classin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
BAD GAS FROM SUNOCO GAS STATIONS. NEW GAS BLEND. 6 MERCEDES BENZ SERVICED FOR ALL 4 OXYGEN SENSOR BURNED OUT IN BOSTON MA. *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