There are 1 owner-reported engine complaints for the 2005 Mercedes-Benz S-Classin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
ENGINE ALMOST STARTED ON FIRE AFTER OIL STARTED POURING OUT OF OIL COOLER. HAD CAR TOWED TO GARAGE WHERE THEY DIAGNOSED THE LEAKING OIL COOLER. ONE PROBLEM AFTER ANOTHER WITH THIS CAR. *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