1994 MERCEDES BENZ C280 Engine Problems

I JUST BOUGHT THIS W202 94' C280 WITH 150K IN THE SPRING TIME WHICH SURPRISINGLY RAN FINE WITH NO ISSUES, CONSIDERING SOME OF THE LOOM ON THE ELECTRICAL WIRES GOING TO THE CONNECTORS AND SENSORS IS ENTIRELY DISINTEGRATED AND INSULATION IS BREAKING APART LEAVING BARE COPPER WIRES NEAR EACH OTHER OR NEAR METAL BRACKETS. NOW ENTERING THE WINTER TIME WITH INCREASED MOISTURE AND RAIN IT SEEMS TO BE AFFECTING THE VEHICLE MORE SUCH AS CAUSING UNWANTED OPERATION OF COMPONENTS AT FREEWAY SPEEDS LIKE THE EGR WHICH IS ONE OF THE AFFECTED COMPONENTS ON THE DEGRADING LOOM, JUST AS THE SAI AND THE ALTERNATOR POWER WIRES. THE SAI NO LONGER WORKS TO WARM UP MY CAR QUICKER AND THEREFORE THERE IS AN INCREASE OF EMISSIONS AT STARTUP. SOMETIMES THE CAR CHARGING SYSTEM FUNCTIONS VERY POORLY TO WHERE THE BATTERY IS NEARLY DISCHARGED AND EVERYTHING BARELY WORKS, OTHER DAYS WORKS FINE. MOST...

TL* THE CONTACT OWNS A 1994 MERCEDES-BENZ C280. WHILE THE VEHICLE WAS IDLING IN THE DRIVEWAY, SMOKE APPEARED UNDER THE HOOD. THE CONTACT NOTICED THAT THE WIRES AND INSTALLATION WERE ON FIRE UNDER THE HOOD. THE CONTACT EXTINGUISHED THE FIRE. THE VEHICLE WAS TAKEN TO THE DEALER WHERE A NEW WIRING HARNESS WAS INSTALLED AND A FEW SENSORS WERE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 165,000.

ENGINE BEGAN TO MAKE A "BUZZSAW" GRINDING SOUND THAT WAS NOT INITIALLY NOTICED WHILE DRIVING ALONG ON AN 85 MILE INTERSTATE HIGHWAY TRIP. WHILE TRAVELING AT 60 MPH ON A 6 LANE HIGHWAY, ALL THE DASHBOARD LIGHTING BEGAN TO DIM AND MALFUNCTION, THE ELECTRICAL SYSTEM THEN COMPLETELY FAILED AND SHUT DOWN CAUSING THE ENGINE TO STALL OUT, STEERING AND BRAKE FUNCTION BECAME SIGNIFICANTLY DEGRADED DUE TO ENGINE FAILURE (INCLUDING COMPLETE STOPPAGE OF THE WINDSHIELD WIPERS DURING A HEAVY RAIN DOWNPOUR) SAFELY EXITED ROADWAY BY MANEUVERING AROUND TRAFFIC AND COASTING TO ROAD SIDE SHOULDER AT WHICH POINT SMOKE STARTED POURING OUT FROM UNDER HOOD AND FILLING THE PASSENGER COMPARTMENT. CAR WAS SUBSEQUENTLY TOWED TO A MERCEDES DEALERSHIP WHERE THEY IDENTIFIED THE CAUSE OF THE FAILURE AND FIRE AS A SEVERELY DEGRADED ENGINE WIRING HARNESS. THE HARNESS WIRING INSULATION WAS FOUND TO BE BRITTLE, CRACKING AND FALLING APART, LEAVING INDIVIDUAL BARE COPPER...

THE CAR BEGAN TO SLOW DOWN UNCONTROLLABLY. THE CAR SHOOK AND DIED. I WAS ON I-75 IN ATLANTA, GA. THE SHOP SAID THAT IT WAS DUE TO A FAULTY ENGINE WIRING HARNESS, SOMETHING THAT MERCEDES IS AWARE OF. I WAS ALMOST KILLED. *TR