RoadVitals

1992 Mercedes-Benz 400E Electrical Problems

Owner-reported complaints naming the electrical system, filed with NHTSA

Data refreshed

Electrical reportsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
17
Latest Jun 19, 2014
Share of all reportsThis category as a share of every owner report on file for this model year. One report can name more than one component, so the categories overlap.
89%
of 19 total
Crash or fire reportedReports in this category whose submitter recorded that a crash or a fire occurred. The reporter's own answer on the NHTSA form, not a verified finding.
2
Injuries or deaths reportedTotals the submitters entered on their own reports in this category. Not verified by NHTSA and not a casualty statistic.
0

What this page shows

Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories. Every record below is an owner-reported complaint about the 1992 Mercedes-Benz 400E submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 17 reports on file name it.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Owner reports naming electrical

Shown in the owner’s own words, exactly as filed

ElectricalPowertrain (other)
Filed Jun 19, 2014
Fire reported

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. *TR

NHTSA ID
10604618
Incident
May 26, 2014
Mileage
135,905 mi
Electrical
Filed Oct 31, 2008

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. *TR

NHTSA ID
10247345
Incident
Oct 28, 2008
Electrical
Filed Oct 13, 2008

MB WIRING HARNESS FAILURE 1992 400SE. *TR

NHTSA ID
10245281
Incident
Sep 27, 2008
Electrical
Filed Jul 9, 2008

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. *TR

NHTSA ID
10233679
Incident
Jul 9, 2007
Mileage
145,000 mi
Electrical
Filed Jun 18, 2008

I HAVE A MERCEDES BENZ 400E AND THE WIRING HARNESS EVENTUALLY WITHERED AND DETERIORATED DUE TO FAULTY MANUFACTURING. *TR

NHTSA ID
10231493
Incident
Jan 24, 2007
Electrical
Filed Jun 11, 2008

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. *TR

NHTSA ID
10230774
Incident
Jun 10, 2008
Mileage
135,000 mi
Electrical
Filed Mar 26, 2008

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. *TR

NHTSA ID
10222346
Incident
Mar 20, 2008
Mileage
95,000 mi
Electrical
Filed Oct 19, 2007
Crash reported

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 ID
10206299
Incident
Jun 10, 2007
Mileage
125,000 mi
Electrical
Filed Jun 25, 2007

AUTOMOBILE REPAIR SHOP SHOWED ME THE PROBLEM WITH THE WIRING HARNESS. THE WIRING HARNESS WIRES WERE FRIED AND BECAME BRITTLE.*AK

NHTSA ID
10194117
Incident
Aug 15, 2003
Mileage
165,000 mi
Electrical
Filed Apr 20, 2007

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.*AK

NHTSA ID
10188457
Incident
Apr 6, 2007
Mileage
13,000 mi
Electrical
Filed Sep 9, 2006

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. *JB

NHTSA ID
10167735
Incident
Jul 1, 2006
Mileage
100,000 mi
Electrical
Filed Aug 24, 2006

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. *JB

NHTSA ID
10166483
Incident
Aug 15, 2006
Mileage
162,000 mi
Electrical
Filed Apr 24, 2006

ENGINE WIRING HARNESS CRACKED, REPLACED AT COST OF $728 @ MILEAGE OF 86,226 ON 10/21/03. VEHICLE HAD BEEN PURCHASED AS MB STARMARK VEHICLE AT ~45,000 MILES. *NM

NHTSA ID
10156015
Incident
Oct 21, 2003
Mileage
86,226 mi
Electrical
Filed Mar 7, 2006

VEHICLE CHECKED AND FOUND THAT INSULATION ON ALL OF THE FUEL INJECTION WIRING, TEMPERATURE SENSOR AND FAN THERMAL SWITCH HARNESS DETERIORATED CAUSING WIRES TO RUB TOGETHER. CONSUMER DISCOVERED THAT HARNESS INSULATION IS MADE OF VERY POOR MATERIAL .THE INSULATION BREAKS VERY EASY AT THE TOUCH AND TURNS INTO DUST. THE WHOLE WIRE HARNESS IS IN THE SAME SITUATION. *JB

NHTSA ID
10152151
Incident
Mar 7, 2006
Electrical
Filed May 19, 2003

VEHICLE CHECKED AND FOUND THAT INSULATION ON ALL OF THE FUEL INJECTION WIRING ,TEMPERATURE SENSOR AND FAN THERMAL SWITCH HARNESS DETERIORATED CAUSING WIRES TO RUB TOGETHER. CONSUMER DISCOVERED THAT HARNESS INSULATION IS MADE OF VERY POOR MATERIAL .THE INSULATION BREAKS VERY EASY AT THE TOUCH AND TURNS INTO DUST. THE WHOLE WIRE HARNESS IS IN THE SAME SITUATION. *JB

NHTSA ID
10018929
Incident
May 15, 2003
Electrical
Filed Feb 4, 2003

MAIN ENGINE WIRING HARNESS IS CURRENTLY DETERIORATING CAUSING THE WIRES TO BE EXPOSED TO AN INTENSE AMOUNT OF HEAT.

NHTSA ID
10005286
Incident
Sep 12, 2002
Mileage
120,239 mi
Electrical
Filed Sep 30, 2002

CONSUMER STATES IN 08/02 EXPERIENCED PROBLEMS W/AIR CONDITIONING CUTTING OFF. VEHICLE CHECKED BY DLR WHO DIAGNOSED THAT INSULATION ON FUEL INJECTION WIRING HARNESS DETERIORATED CAUSING WIRES TO RUB TOGETHER. CONSUMER DISCOVERED THAT HARNESS INSULATION IS MADE OF BIO-DEGRADABLE MATERIAL RESULTING IN EARY DETERIORATION. NLM

NHTSA ID
8019881
Incident
Aug 1, 2002

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .