WIRING HARNESS IN ENGINE COMPARTMENT HAS CRACKED, DRY ROTTEN, AND MISSING INSULATION. THIS IS CAUSED BY POOR MATERIALS USED IN PRODUCTION. IT COULD BE A SIGNIFICANT SAFETY HAZARD AND CAUSE A FIRE. *JB
1995 Mercedes Benz E320
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 1995 Mercedes Benz E320 do not stand out strongly from the model-year median of 42.5.
About this comparison →How this year compares
Owner complaints by model year
Compare all E320 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
79 reports with mileage · 17 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Electrical System. Review the 89 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Engine And Engine Cooling. Review the 8 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Fuel System, Gasoline. Review the 5 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
Electrical System complaints
89 reportsTHE ENGINE WIRING HARNESS AND EA/CC/ISC(PART M16/1,ELECTRONIC ACCELERATOR/CRUISE CONTROL/IDLE SPEED CONTROL) WIRING INSULATION HAS BADLY DETERIORATED ON MY 1995 E320 CABRIOLET DUE TO HEAT FATIGUE FROM POOR MANUFACTURING. THIS CAR HAS 92000 MILES. THE DECAY HAS REACHED THE POINT OF LEAVING BARE EXPOSED WIRE WITHIN THE HARNESS. …
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THE ENGINE WIRING HARNESS AND EA/CC/ISC(PART M16/1,ELECTRONIC ACCELERATOR/CRUISE CONTROL/IDLE SPEED CONTROL) WIRING INSULATION HAS BADLY DETERIORATED ON MY 1995 E320 CABRIOLET DUE TO HEAT FATIGUE FROM POOR MANUFACTURING. THIS CAR HAS 92000 MILES. THE DECAY HAS REACHED THE POINT OF LEAVING BARE EXPOSED WIRE WITHIN THE HARNESS. THESE WIRES MAKE CONTACT CAUSING THE ENGINE TO STALL, SURGE AND SET MISC. ENGINE CODES. IT IS JUST A MATTER OF TIME UNTIL...WHO KNOWS. THIS IS A KNOWN PROBLEM TO OWNERS OF THESE VEHICLES AS EVIDENCED BY CONVERSATION THREADS ON SEVERAL WELL REGARDED FORUMS. THE GENERAL UNDERSTANDING IS THAT MERCEDES WAS ATTEMPTING TO CREATE ECO-FRIENDLY WIRE INSULATION THAT WOULD DEGRADE IN THE LANDFILL. IT WAS A GREAT IDEA, BUT HAS FAILED MISERABLY. IN MY OPINION SOMEONE IS GOING TO BE SERIOUSLY INJURED IF THIS PROBLEM IS NOT RESOLVED WITH A RECALL. NOW. THIS IS NOT BY ANY STRETCH OF THE IMAGINATION A PART THAT IS PRONE TO FAILURE. MY FEELING IS THAT BY WAITING IT OUT MERCEDES IS HOPING THESE CARS WILL JUST GO AWAY. IF YOU WOULD LIKE I CAN PROVIDE DIGITAL IMAGES OF THE HARNESS CLEARLY SHOWING THE DECAY. QUITE FRANKLY IT IS OUTRAGEOUS. I ALSO DO HAVE A BAD HARNESS THAT I KEPT. I HESITATE TO SEND IT AS I MAY BE FORCED TO TRY AND RECONDITION IT SOMEHOW. THE COST OF A NEW HARNESS IS RIDICULOUS NOT TO MENTION I WOULD END UP WITH A HARNESS THAT WILL DO THE SAME THING UNLESS THEY HAVE CHANGED THERE WAYS FOR THIS PART! HERE ARE THE FORUMS I MENTIONED ABOVE. HTTP://WWW.MERCEDESSHOP.COM/SHOPFORUM HTTP://WWW.BENZWORLD.ORG/FORUMS HTTP://FORUMS.MBWORLD.ORG/FORUM. I CAN NOT BELIEVE THAT A COMPANY KNOWN FOR A HIGH QUALITY LONG LASTING PRODUCT WOULD DUCK OUT OF THEIR RESPONSIBILITY IN THIS ISSUE. *NM
MY 1995 MERCEDES WAGON E320 HAS ONLY 42K MILES ON IT BUT ALL THE WIRES AKA THE ENGINE HARNESS ARE CRUMBLING TO THE TOUCH. ALL THE WIRE INSULATION HAS DETERIORATED BECAUSE OF THE USE OF BIO-GRADABLE PLASTIC. THE DEALER WANTS ME TO PAY $1500 FOR THE ENGINE HARNESS. HOW CAN SUCH A MAJOR PART BE SO POORLY MADE AND UNRELIABLE. TH…
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MY 1995 MERCEDES WAGON E320 HAS ONLY 42K MILES ON IT BUT ALL THE WIRES AKA THE ENGINE HARNESS ARE CRUMBLING TO THE TOUCH. ALL THE WIRE INSULATION HAS DETERIORATED BECAUSE OF THE USE OF BIO-GRADABLE PLASTIC. THE DEALER WANTS ME TO PAY $1500 FOR THE ENGINE HARNESS. HOW CAN SUCH A MAJOR PART BE SO POORLY MADE AND UNRELIABLE. THIS IS A MAJOR SAFETY ISSUE FOR MY FAMILY. *JB
DISINTEGRATION OF INSULATION ON ENGINE WIRING HARNESS.
THE INSULATION THAT PROTECTS THE WIRES IN THE ENGINE WIRING HARNESS OF 1995 MERCEDES E320 VEHICLES DETERIORATES AND CAUSES THE WIRES TO SHORT. THIS ELECTRICAL SHORT MAY RESULT IN UNEXPECTED ENGINE STALLING, THUS CREATING A HAZARDOUS CONDITION. THE ENGINE WIRING HARNESS MUST BE REPLACED. THIS CONDITION EXISTS IN ALL 1995 E320 …
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THE INSULATION THAT PROTECTS THE WIRES IN THE ENGINE WIRING HARNESS OF 1995 MERCEDES E320 VEHICLES DETERIORATES AND CAUSES THE WIRES TO SHORT. THIS ELECTRICAL SHORT MAY RESULT IN UNEXPECTED ENGINE STALLING, THUS CREATING A HAZARDOUS CONDITION. THE ENGINE WIRING HARNESS MUST BE REPLACED. THIS CONDITION EXISTS IN ALL 1995 E320 VEHICLES SOLD IN THE UNITED STATES. THE CONDITION EXISTS IN OTHER YEARS AND MODELS BY MERCEDES, HOWEVER I DO NOT HAVE SPECIFIC INFORMATION CONCERNING THE AFFECTED YEARS AND MODELS. *NM
WHEN I HAD MY 60,000 MILE SERVICE I WAS TOLD THE THE WIRING HARNESS WAS DEFECTIVE AND NEEDED TO BE REPLACED TO THE TUNE OF ABOUT 1500.00 DOLLARS. MERCEDES WOULD NOT PAY ANY PART OF THIS REPAIR EVEN THOUGHT THE DEALER INDICATED THAT IT WAS A OBVIOUS DESIGN PROBLEM IN THE WIRING HARNESS OF THE E320 SERIES AND HAD BEEN FIXED IN LA…
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WHEN I HAD MY 60,000 MILE SERVICE I WAS TOLD THE THE WIRING HARNESS WAS DEFECTIVE AND NEEDED TO BE REPLACED TO THE TUNE OF ABOUT 1500.00 DOLLARS. MERCEDES WOULD NOT PAY ANY PART OF THIS REPAIR EVEN THOUGHT THE DEALER INDICATED THAT IT WAS A OBVIOUS DESIGN PROBLEM IN THE WIRING HARNESS OF THE E320 SERIES AND HAD BEEN FIXED IN LATER MODELS. MY PROBLEM WAS THAT THE HARNESS WIRES LEADING TO THE SPARK PLUGS HAS HARDENED AND THE INSULATION HAS FLAKED OFF OF THE WIRES. GOD ONLY KNOWS WHERE THE HARNESS HAS HARDENED ELSEWHERE AND WHAT POTENTIAL PROBLEMS COULD OCCUR WHEN THE VEHICLE IS BEING DRIVEN. I THINK THAT SINCE IT HAS BEEN OMITTED AS A DEFECT AND IS NOW CAUSING SAFETY AND RELIABILITY PROBLEMS THAT THE MANUFACTURE SHOULD STEP UP AND REPAIR THE PROBLEMS. *AK
FAILURE OF AIR CONDITIONER, WINDSHIELD WIPER FLUID, RADIO ANTENNA, AND OIL LEAK. *LA THE A/C FAILED CONTINUOUSLY SINCE PURCHASED, THE FRONT WINDOWS HAD BROKEN MOTORS THE WATER PUMP BLEW, OIL LEAKED INTO THE COOLING SYSTEM AND WAS REPLACED(WATER PUMP AND HEAD GASKET WAS REPLACED), TWO ENGINE MOUNTS COLLAPSED, DRIVER'S DOOR RA…
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FAILURE OF AIR CONDITIONER, WINDSHIELD WIPER FLUID, RADIO ANTENNA, AND OIL LEAK. *LA THE A/C FAILED CONTINUOUSLY SINCE PURCHASED, THE FRONT WINDOWS HAD BROKEN MOTORS THE WATER PUMP BLEW, OIL LEAKED INTO THE COOLING SYSTEM AND WAS REPLACED(WATER PUMP AND HEAD GASKET WAS REPLACED), TWO ENGINE MOUNTS COLLAPSED, DRIVER'S DOOR RATTLED, ENGINE LIGHT STAYED ON, AND BOTH FRONT TIRES LOST AIR AND WERE FILLED EVERY TWO WEEKS(FIVE SETS OF TIRE). THE CONSUMER REQUESTED REIMBURSEMENT. *SC
I OWN A 1995 MERCEDES BENZ E320 WAGON. I HAVE OWNED THE CAR FOR SEVERAL MONTHS AND DECIDED TO CHANGE THE OIL. WHILE REACHING INTO THE ENGINE COMPLARTMENT, I FELT AN ELECTRICAL SHOCK FROM A WIRE BUNDLE NEAR THE OIL FILTER. I LOOKED AND SAW BARE WIRES EXPOSED WHERE THE INSULATION WAS MISSING. I HAVE SINCE FOUND OUT MANY OTHER OWNE…
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I OWN A 1995 MERCEDES BENZ E320 WAGON. I HAVE OWNED THE CAR FOR SEVERAL MONTHS AND DECIDED TO CHANGE THE OIL. WHILE REACHING INTO THE ENGINE COMPLARTMENT, I FELT AN ELECTRICAL SHOCK FROM A WIRE BUNDLE NEAR THE OIL FILTER. I LOOKED AND SAW BARE WIRES EXPOSED WHERE THE INSULATION WAS MISSING. I HAVE SINCE FOUND OUT MANY OTHER OWNERS OF SAME VEHICLE HAVE EXPERIENCED SIMILAR ISSUES WITH THE WIRING HARNESS. THIS SEEMS TO ME TO BE A VERY DANGEROUS AND VERY COMMON DEFECT WITH CERTAIN MODEL YEARS. THE REPAIR IS VERY COSTLY. WHY IS THERE NOT A RECALL ON THIS VERY COMMON AND HAZARDOUS ISSUE? IT IS AN OBVIOUS DESIGN FLAW.*AK
DISINTEGRATION OF THE ENGINE WIRING HARNESS CAUSING LOSS OF POWER WHILE DRIVING. *LA
I OWN A 1995 E320 SDN, I HAVE 87,000 MILES ON THE VEHICLE AND MERCEDES HAS PERFORMED ALL MAJOR SERVICE OF THE VEHICLE DURING THE TIME I HAVE OWNED THE CAR (4YRS). I WAS INFORMED THAT THE MAIN WIRE HARNESS IS FALLING APART AND IT WAS RECOMMENDED THAT IT BE REPLACED TO THE TUNE OF $1,200.00 PLUS. I HAVE WORKED ON CARS FOR MANY Y…
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I OWN A 1995 E320 SDN, I HAVE 87,000 MILES ON THE VEHICLE AND MERCEDES HAS PERFORMED ALL MAJOR SERVICE OF THE VEHICLE DURING THE TIME I HAVE OWNED THE CAR (4YRS). I WAS INFORMED THAT THE MAIN WIRE HARNESS IS FALLING APART AND IT WAS RECOMMENDED THAT IT BE REPLACED TO THE TUNE OF $1,200.00 PLUS. I HAVE WORKED ON CARS FOR MANY YEARS AS WELL AS RESTORING THEM AND HAVE NEVER RUN ACROSS A PROBLEM SUCH AS THIS. M.B. SHOULD STAND BEHIND THIS FAILURE AND INITIATE A RECALL.*AK
Official recalls
0No recalls in this snapshot.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.
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