31 of the
44 complaints filed about the Mercedes Benz 400E
are about the electrical system —
70% of everything owners reported.
The worst model year for it is 1992.
PARKED THE VEHICLE AND PLACED IT IN PARK THEN TURNED IGNITION OFF. BURNING SMELL COMING FROM VEHICLE THEN SMOKE STARTED GOING IN THROUGH VENTS AND SEEMED LIKED IT WAS COMING FROM UNDER THE CAR. THE ELECTRICAL WIRING HARNESS IS CREATING MASS AND THE CAR NEARLY WENT UP IN FLAMES. THE FIRE DEPARTMENT ARRIVED AND WERENT ABLE TO PUT OUT THE SMOKE AS THE SOURCE OF IT WAS NOT IMMEDIATLY DETERMINED. I AM NOT LOOKING AT THOUSANDS OF DOLLARS IN REPAIRS.
NHTSA complaint #10851497 — an unverified report by a vehicle owner.
WIRING CAUGHT FIRE DUE TO FAULTY WIRING HARNESS INSULATION, WHICH IS WELL DOCUMENTED. YET, MERCEDES REFUSES TO RESOLVE/RECALL THIS ISSUE. WIRING HARNESS NEEDS TO BE REPLACED.
NHTSA complaint #10618874 — an unverified report by a vehicle owner.
THE CHECK ENGINE LIGHT CAME ON AND BEFORE I COULD PULL OVER THERE WAS SMOKE COMING FROM UNDER THE HOOD. WHEN I OPENED THE HOOD THE AIR CLEANER ASSEMBLY WAS MELTED THROUGH AND SOME FLAME WAS STILL GLOWING IN THE DRIVER SIDE AIR FILTER. THE UPPER ENGINE WIRING HARNESS WAS CHARRED ALONG THE DRIVER SIDE AND THE CONNECTOR TO THE CAM ACTUATOR HAD DISINTEGRATED. AFTER GETTING THE CAR TOWED HOME I FOLLOWED THE HARNESS BACK TO THE AMP CONNECTOR AND ALL OF THE INSULATION ON THE WIRES HAD COMPLETELY DEGRADED TO A POWDER. I ALSO CHECKED THE WIRES ON THE MAF SENSOR AND THE THROTTLE BODY AND FOUND THE SAME CONDITION. THIS IS A MANUFACTURING ISSUE: SUBSTANDARD WIRING INSULATION ON ALL WIRING IN THE ENGINE COMPARTMENT.
NHTSA complaint #10604618 — an unverified report by a vehicle owner.
FAULTY WIRING IN ENGINE HARNESS RESULTED IN LOSS OF POWER AT SPEED ON A MAJOR INTERSTATE, LUCKILY AT THE TIME I WAS ABLE TO GET OFF THE ROAD SAFELY. IT WAS DETERMINED THAT THE CAR'S CHARGING SYSTEM HAD BEEN SHORTED OUT. STILL WAITING ON OTHER SYSTEM TESTS. THIS IS A KNOWN PROBLEM WITH CERTAIN MERCEDES. WHY ISN'T ANYTHING BEING DONE ABOUT THIS?
NHTSA complaint #10484072 — an unverified report by a vehicle owner.
I OWN A 1993 400E MERCEDES. RECENTLY IT HAS HAD MAJOR DIFFICULTY TURNING OVER. I TOOK IT TO MY LOCAL MERCEDES BENZ REPAIR SHOP. THEY TOLD ME IT THE ENGINE HARNESS HAS GONE BAD AND NEEDS TO BE REPLACED COMPLETELY. EVIDENTLY THIS IS A VERY COMMON PROBLEM WITH THIS VEHICLE AS MERCEDES USED SUB-STANDARD MATERIALS WHEN BUILDING THE WIRING HARNESS. THIS CAUSES MAJOR SAFETY ISSUES AND I BELIEVE MERCEDES SHOULD BE FORCED TO BEGIN RECALLING THESE VEHICLES.
NHTSA complaint #10310130 — an unverified report by a vehicle owner.
WIRING HARNESS ON MERCEDES BENZ 400E FAILED AND ENTERED A LOW POWER BACKUP MODE ON THE HIGHWAY FAR AWAY FROM OUR RESIDENCE. WIRING HARNESS IS CHARRED AND HARNESS SHORTED OUT ON ENGINE.
NHTSA complaint #10257260 — an unverified report by a vehicle owner.
1992 MERCEDES BENZ 400E. I AM CONCERNED ABOUT THE SAFETY OF THE WIRING HARNESS ON THIS VEHICLE. INSULATION ON WIRES IS CRACKING AND PEELING OFF EXPOSING WIRES TO OTHER WIRES AND THE ENGINE. I AM CONCERNED ABOUT THIS CAUSING A FIRE. I AM AWARE THAT THIS IS COMMON TO THIS MODEL BECAUSE OF THE COMPOSITION OF THE INSULATION MATERIAL. I DO NOT WANT INJURY TO MYSELF OR OTHERS WHILE DRIVING THIS AUTOMOBILE.
NHTSA complaint #10247345 — an unverified report by a vehicle owner.
THE ENGINE / FUEL INJECTION WIRING HARNESS OF MY 1992 MERCEDES-BENZ 400E (145,000 MILES), HAS CRACKED INSULATION THROUGHOUT AND IS BEGINNING TO SHORT OUT WITH THE RISK OF CAUSING DANGEROUS ENGINE MALFUNCTION AND EVEN FIRE INSIDE MY ENGINE COMPARTMENT.
NHTSA complaint #10233679 — an unverified report by a vehicle owner.
1992 MERCEDES-BENZ 400E WIRING HARNESS MULTIPLE FAILURES. REPLACED ENGINE WIRING HARNESS SHORTLY AFTER I PURCHASED THIS CAR (USED) IN 2005 DUE TO DETERIORATION OF INSULATION FROM THE WIRES. I WAS TOLD AT THE TIME THAT THIS IS A COMMON PROBLEM WITH THIS ERA OF MB DUE TO SOME PLANNED OBSOLESCENCE OR TARGETED SELF-DESTRUCTION BY THE MANUFACTURER. TODAY I AM TOLD THAT I NEED TO REPLACE THE WIRING HARNESS LEADING TO THE STARTER MOTOR FOR THE EXACT SAME REASON. THESE ARE EXPENSIVE PARTS, ONLY AVAILABLE FROM THE MANUFACTURER AND REQUIRE EXTENSIVE LABOR TO REPLACE. THIS IS ABSOLUTELY A MANUFACTURER'S DEFECT AND SHOULD BE RESOLVED BY A COMPANY THAT CLEARLY ADVERTISES A "LONG-LIFE" PRODUCT.
NHTSA complaint #10230774 — an unverified report by a vehicle owner.
THE WIRING HARNESS ON MY 1992 400E HAS DISINTEGRATED, AS I'VE READ TO BE COMMON OF THE MERCEDES OF THE EARLY 1990'S. MY CAR SHUDDERS DRAMATICALLY WHEN IDLING, AND ALTERNATES BETWEEN PERIODS OF SLOW/NO ACCELERATION TO UNEXPECTED LURCHING FORWARD.
NHTSA complaint #10222346 — an unverified report by a vehicle owner.
1992 MERCEDES E 400 MAIN ENGINE WIRING HARNESS FAILURE. HARNESS FRIED DUE TO POOR WIRING INSULATION. I OWN TWO MERCEDES AND BOTH ARE FOR SALE. WILL NEVER BUY A CAR FROM MERCEDES EVER AGAIN. TOO MUCH MONEY AND TOO MANT PROBLEMS.
NHTSA complaint #10206299 — an unverified report by a vehicle owner.
TL*THE CONTACT OWNS A 1992 MERCEDES BENZ 400E. WHILE DRIVING 35 MPH THE VEHICLE SHUT OFF ON THE HIGHWAY. HE RESTARTED THE VEHICLE AND DEPRESSED THE ACCELERATOR PEDAL, CAUSING THE VEHICLE TO IDLE. THE DEALER STATED THAT THE VEHICLE NEEDED A NEW WIRING HARNESS, AND AN AIT TEMP SENSOR. THE DEALER STATED THAT THE BEARING HARNESS WAS DEFECTED AND METAL WAS VISIBLE. THE WIRES INSIDE WERE DETERIORATING. THE VEHICLE WAS TAKEN TO THE DEALER ON APRIL 6TH, 8TH, 9TH, AND 18TH, AND THE FAILURE REMAINED. THE CURRENT MILEAGE IS 132,000, AND FAILURE MILEAGE WAS 13,000.
NHTSA complaint #10188457 — an unverified report by a vehicle owner.
THE WIRE HARNESS IS CRACKED AND ROTTEN. THE MOTOR DOES NOT RUN RIGHT. IT STALLS AND CUTS OUT. THE MECHANIC SAYS TO JUST GIVE HIM $1000.00 FOR A TEMP. FIX DUE TO THE MATERIALS USED IN THE REPLACEMENT HARNESS.
NHTSA complaint #10178341 — an unverified report by a vehicle owner.
FAILED NEW JERSEY DMV INSPECTION CAUSED BY ENGINE RUNNING ABNORMALLY ROUGH AND LIT "CHECK ENGINE LIGHT" , FALSE LOW OIL PRESSURE SIGNAL, VARIOUS ELECTRICAL FUNCTIONS IN CAR EITHER INOPERABLE OR INTERMITTENTLY WORKING. CAUSE WAS DEFECTIVE WIRING HARNESS. DIAGNOSED AND REPAIRED BY SERVICE SHOP AT MERCEDES BENZ DEALER.
NHTSA complaint #10172386 — an unverified report by a vehicle owner.
THE ENGINE WIRING HARNESS IN MY 1992 MERCEDES 400E HAS DETERIORATED AND IS CAUSING SHORTS THROUGHOUT THE CAR. THE GAUGES DO NOT WORK AND THE THROTTLE BODY IS FAILING. I HAVE HAD THE CAR TOWED TWICE BECAUSE OF THIS AND THE REPAIR IS IN THE THOUSANDS OF DOLLARS. THIS SHOULD BE A RECALL AND REPLACED DUE TO THE SAFETY HAZARD. MY CAR STALLED IN THE MIDDLE OF THE ROAD.
NHTSA complaint #10167735 — an unverified report by a vehicle owner.
I WAS DRIVING 80 GOING ON HIGHWAY 696 WHEN THE CAR SUDDENLY DIED. I WAS IN THE LEFT LANE OF A 3 LANE FREEWAY. I HAD ENOUGH TIME TO GET ONTO THE RIGHT SIDE ALONG WITH A FEW ANGRY DRIVERS. IT APPEARS THE WIRE HARNESS WAS TOAST. IT SHORT CIRCUITED AND FRIED THE LH MODULE THAT CONTROLS THE ENGINE.
NHTSA complaint #10166483 — an unverified report by a vehicle owner.