CAR HAS BEEN A GOOD RUNNING CAR FRO SEVERAL THOUSAND MILES, HOWEVER TODAY IT STARTED, WHAT SEEM TO BE A MISFIRE. I CHECKED THE SPARK PLUGS, WIRES, IGNITERS AND THEY WERE ALL IN GOOD CONDITION SINCE THEY HAVE BEEN REPLACED RECENTLY. AS I WAS DRIVING THE CAR AT 35 MILES AN HOUR THE CAR SUDDENLY JERKED AND SMOKE FILED THE INSIDE AND WOULD NOT ACCELERATE ON A BUSY CROSS ROAD, SO INSTANT PANIC SET IN, BECAUSE OF THE LOSS OF VISION AND UNABLE TO BREATH FROM THE FUMES. I SUFFER FROM MIGRAINES AND HAD TO GO TO THE DOCTOR FOR A CHECK UP BECAUSE MY HEALTH HAS NOT BEEN THE SAME SINCE. AS DAYLIGHT CAME I FINALLY HAD A CHANCE TO LOOK AT THE DAMAGE AND IT WAS THE DEFECTIVE WIRING HARNESS THAT HAS BEEN INSTALLED ON CERTAIN YEARS OF MERCEDES BENZ, PER THE VAST AMOUNT OF INFORMATION REGARDING THE ISSUE AND HOW I AM NOW WRITING ABOUT IT. THE CAR HAS BEEN A GOOD RUNNING CAR, BUT MERCEDES BENZ SHOULD OWN UP TO THE PROBLEM. *TR