CAR WAS IDLING AT A STOP SIGN, I NOTICED WHITE SMOKE AND THOUGHT IT WAS EXHAUST FROM THE CARS IN FRONT OF AND BEHIND ME. I SUDDENLY BECAME ENGULFED IN SMOKE AND SAW IT SPEWING FROM THE FRONT OF MY CAR. AS I REACHED TO TURN OFF MY ENGINE, FLAMES SOARED FROM UNDER THE HOOD OF MY CAR, HIGHER THAN I COULD SEE, FROM SITTING INSIDE. I IMMEDIATELY GOT OUT OF THE CAR AND RAN AWAY FROM IT, AS I HAD A FULL TANK OF GAS AND WAS AFRAID OF AN EXPLOSION. FROM A SAFE DISTANCE I COULD SEE THE FLAMES COMING FROM UNDER THE THE ENGINE AND SHOOTING ABOUT 15 FEET INTO THE AIR FROM MAINLY THE DRIVER SIDE OF THE HOOD. THE FIRE DEPARTMENT ARRIVED AND TOOK A CHAINSAW TO THE HOOD. WHEN THEY OPENED THE HOOD THE ENGINE WAS A MELTED MASS OF METAL. UPON 'GOOGLING" MERCEDES ENGINE FIRES, I HAVE FOUND THAT THEY ARE A HAZARD IN S600'S DUE TO OIL LEAKS. THERE WERE PICTURES OF SOME OF THOSE FIRES ON U-TUBE AND LOTS OF COMPLAINTS ON DIFFERENT FORUMS. I HAVE SINCE BEEN TOLD BY MERCEDES MECHANICS THAT THERE WAS A BIG DESIGN FLAW IN THE ENGINES OF THESE CARS IN REGARDS TO OIL LEAKS. LOTS OF FIRES AS A RESULT. IF YOU HAVE AN OIL LEAK, THEY HAVE TO PULL THE ENGINE TO GET AT IT TO FIX IT. I KNOW FIRST HAND, I HAD ONE AND IT WAS A $ 9,500 CHARGE FOR THAT OIL LEAK!!!! *JS