2012 Mercedes-Benz S-Class Engine
Owner-reported problems and safety issues filed with NHTSA. Review common failures, severity levels, and complaint trends over time.
Complaint Timeline
Chronological view of owner reports
ENGINE HAS OIL LEAK SIMILAR TO MANY 2011-2012 DIESEL MODEL.
THERE IS AN PLASTIC PLUG IN THE OIL SYSTEM THAT LEAKS OIL FROM THE ENGINE ON TO THE EXHAUST MANIFOLD. THIS WAS REPORTED BECAUSE OF INCREASED OIL CONSUMPTION, VAPOR IN THE ENGINE SPACE AND A SMELL OF BURNED OIL. THE PLASTIC PLUG IS KNOWN TO LEAK AND MERCEDES DOES NOTHING ABOUT THIS DURING WARRANTY AND INSTEAD WAITS UNTIL THE VEHICULAR IS OUT OF WARRANTY CAUSING AN INCREASED TIME FOR A FIRE POTENTIAL. THIS CAR IS DRIVEN ON CITY STREETS AND HIGHWAYS WITH THIS FIRE POTENTIAL.
Trend Over Time
Complaints by year
Other Issues
Common problems reported
Quick Summary
The 2012 Mercedes-Benz S-Class has 2 Engine complaints on file. Review the timeline above for detailed owner experiences.