Total Complaints
19 filings
MERCEDES-BENZ E320 · model year
19 NHTSA complaints, 3 crash reports for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 1994MERCEDES-BENZE320 carries 19 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 3 crashes, 1 fire, 2 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
Component-level analysis is where model-year complaints become actionable: the top complaint category for the 1994 E320 is electrical system with 7 filings, followed by vehicle speed control (3) and engine (2). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability.
NHTSA currently has 15 investigation files overlapping the 1994 E320. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.
Total Complaints
19 filings
Crashes Reported
3 reports
Source
NHTSA ODI
Federal complaints database
At or below the fleet median complaint volume.
| Component | Count |
|---|---|
| ELECTRICAL SYSTEM | 7 |
| VEHICLE SPEED CONTROL | 3 |
| ENGINE | 2 |
| FUEL/PROPULSION SYSTEM | 2 |
| ENGINE AND ENGINE COOLING | 1 |
| POWER TRAIN | 1 |
| SEATS | 1 |
| WHEELS | 1 |
| EQUIPMENT:MECHANICAL:ACCESSORY SCISSOR/SCREW/BOTTLE JACK/LIFT | 1 |
TL* THE CONTACT OWNS A 1994 MERCEDES-BENZ E320. WHILE REMOVING THE REAR DRIVER SIDE WHEEL, THE VEHICLE'S FACTORY EQUIPPED JACK FAILED. AS A RESULT, THE VEHICLE FELL ON THE CONTACT. THE CONTACT SUSTAINED INJURIES TO THE COLLAR BONE THAT REQUIRED MEDICAL ATTENTION. THE VEHICLE WAS NOT TAKEN TO A DEALER OR AN INDEPENDENT MECHANIC FOR DIAGNOSTIC TESTING. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 100,000. THE VIN WAS NOT AVAILABLE.
Mileage: 100,000
TL* THE CONTACT OWNS A 1994 MERCEDES-BENZ E320. WHILE REMOVING THE REAR DRIVER SIDE WHEEL, THE VEHICLE'S FACTORY EQUIPPED JACK FAILED. AS A RESULT, THE VEHICLE FELL ON THE CONTACT. THE CONTACT SUSTAINED INJURIES TO THE COLLAR BONE THAT REQUIRED MEDICAL ATTENTION. THE VEHICLE WAS NOT TAKEN TO A DEALER OR AN INDEPENDENT MECHANIC FOR DIAGNOSTIC TESTING. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 100,000. THE VIN WAS NOT AVAILABLE.
Mileage: 100,000
CAR WAS NOT STARTING BROUGHT TO MERCEDES DEALER REPLACED A SENSOR AND THE MECHANIC AND ADVISOR SHOWED ME THE WIRE HARNESS TOLD ME I SHOULD CHANGE IT IT IS BRITTLE AND I WILL HAVE FUTURE PROBLEMS I ONLY HAVE 60,000 MILES ON THIS VECHICLE
CAR WAS NOT STARTING BROUGHT TO MERCEDES DEALER REPLACED A SENSOR AND THE MECHANIC AND ADVISOR SHOWED ME THE WIRE HARNESS TOLD ME I SHOULD CHANGE IT IT IS BRITTLE AND I WILL HAVE FUTURE PROBLEMS I ONLY HAVE 60,000 MILES ON THIS VECHICLE
CAR WAS NOT STARTING BROUGHT TO MERCEDES DEALER REPLACED A SENSOR AND THE MECHANIC AND ADVISOR SHOWED ME THE WIRE HARNESS TOLD ME I SHOULD CHANGE IT IT IS BRITTLE AND I WILL HAVE FUTURE PROBLEMS I ONLY HAVE 60,000 MILES ON THIS VECHICLE
I SMELL GASOLINE INSIDE MY 1994 E320 WHEN I'M DRIVING, JUST STARTED SMELLING IT ON 3/20/15. NEVER BEFORE THIS DATE. *TR
Mileage: 131,000
TL* THE CONTACT OWNS A 1994 MERCEDES BENZ E320. THE CONTACT STATED THAT THE ENTIRE INSTRUMENT PANEL FAILED. NONE OF INDICATORS ON THE PANEL FUNCTIONED EXCLUDING THE CLOCK. ADDITIONALLY, THE CONTACT STATED THAT THE VEHICLE FAILED TO RESTART AFTER BEING DRIVEN. THE VEHICLE WAS TOWED TO THE CONTACTS RESIDENCE. THE VEHICLE WAS NOT TAKEN TO THE DEALER FOR A DIAGNOSTIC TESTING. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VIN WAS NOT AVAILABLE. THE APPROXIMATE FAILURE MILEAGE WAS 150,000.
Mileage: 15,000
RECENTLY BOUGHT CAR. WIRING HARNESS HAD ALREADY BEEN REPLACED, BUT COMPUTER HAS NOT ACTED CORRECTLY SINCE THE WIRING SHORTED OUT DUE TO FAULTY INSULATION. THROWING FAULTS AND NO IDLE. SURGES FORWARD OR BACKWARDS ON ITS OWN. WHILE BACKING IT OUT OF GARAGE, IT SURGED BACKWARDS SO FAST THE BRAKES WOULD NOT HOLD. HIT TRACTOR PARKED IN DRIVEWAY BEFORE GETTING IT STOPPED. BROKE REAR BUMPER COVER. I HAVE OLDER VEHICLES (1974 CHEVY) (1990 CHEVY PICKUP) WITH ABSOLUTELY NO WIRING PROBLEMS. NOW I HAVE A REALLY NICE 1994 E320 THAT IS JUNK BECAUSE I CAN'T AFFORD THE $12 - $1500 TO REPAIR IT. I CAN NOT DRIVE IT UNTIL I CAN HAVE IT REPAIRED. GOOD THING I WASN'T IN TRAFFIC BEHIND A COP WHEN IT DECIDED TO SURGE FORWARD ON IT'S OWN, OR I WOULD BE WRITING THIS FROM INSIDE A JAIL CELL. *TR
Mileage: 167,000
RECENTLY BOUGHT CAR. WIRING HARNESS HAD ALREADY BEEN REPLACED, BUT COMPUTER HAS NOT ACTED CORRECTLY SINCE THE WIRING SHORTED OUT DUE TO FAULTY INSULATION. THROWING FAULTS AND NO IDLE. SURGES FORWARD OR BACKWARDS ON ITS OWN. WHILE BACKING IT OUT OF GARAGE, IT SURGED BACKWARDS SO FAST THE BRAKES WOULD NOT HOLD. HIT TRACTOR PARKED IN DRIVEWAY BEFORE GETTING IT STOPPED. BROKE REAR BUMPER COVER. I HAVE OLDER VEHICLES (1974 CHEVY) (1990 CHEVY PICKUP) WITH ABSOLUTELY NO WIRING PROBLEMS. NOW I HAVE A REALLY NICE 1994 E320 THAT IS JUNK BECAUSE I CAN'T AFFORD THE $12 - $1500 TO REPAIR IT. I CAN NOT DRIVE IT UNTIL I CAN HAVE IT REPAIRED. GOOD THING I WASN'T IN TRAFFIC BEHIND A COP WHEN IT DECIDED TO SURGE FORWARD ON IT'S OWN, OR I WOULD BE WRITING THIS FROM INSIDE A JAIL CELL. *TR
Mileage: 167,000
RECENTLY BOUGHT CAR. WIRING HARNESS HAD ALREADY BEEN REPLACED, BUT COMPUTER HAS NOT ACTED CORRECTLY SINCE THE WIRING SHORTED OUT DUE TO FAULTY INSULATION. THROWING FAULTS AND NO IDLE. SURGES FORWARD OR BACKWARDS ON ITS OWN. WHILE BACKING IT OUT OF GARAGE, IT SURGED BACKWARDS SO FAST THE BRAKES WOULD NOT HOLD. HIT TRACTOR PARKED IN DRIVEWAY BEFORE GETTING IT STOPPED. BROKE REAR BUMPER COVER. I HAVE OLDER VEHICLES (1974 CHEVY) (1990 CHEVY PICKUP) WITH ABSOLUTELY NO WIRING PROBLEMS. NOW I HAVE A REALLY NICE 1994 E320 THAT IS JUNK BECAUSE I CAN'T AFFORD THE $12 - $1500 TO REPAIR IT. I CAN NOT DRIVE IT UNTIL I CAN HAVE IT REPAIRED. GOOD THING I WASN'T IN TRAFFIC BEHIND A COP WHEN IT DECIDED TO SURGE FORWARD ON IT'S OWN, OR I WOULD BE WRITING THIS FROM INSIDE A JAIL CELL. *TR
Mileage: 167,000
AFTER THE VEHICLE IS RESTORED, THE OWNER STARTED TO EXPERIENCE SIGNS OF ELECTRICAL MISHAP. AT FIRST, THE OVERVOLTAGE PROTECTION RELAY (OVP) SHORTED OUT AND THUS, THE CAR COULDN'T BE STARTED. AFTER REPLACING THE OVP, $100, THE CAR STARTED FINE AND ENDED UP BEING DRIVABLE BUT THE OWNER NOTICED A VERY SIGNIFICANT LOSS OF POWER. IT APPEARS THAT THERE IS MISFIRE, IN AT LEAST ONE OF THE CYLINDERS LEADING FROM THE ECU TO THE DISTRIBUTOR. OWNER STILL ENDED UP GOING TO A VIRGINIA STATE LICENSED INSPECTION AND EMISSION. WHERE IT FAILED INSPECTION BECAUSE OF MALFUNCTIONS IN THE BRAKE LIGHT, AS IT APPEARS THAT THE REVERSE LIGHT DOESN'T COME ON. THE AIR CONDITIONING SYSTEM WAS ALSO FAULTY AS IT WOULDN'T TURN ON. EVEN THOUGH THE OWNER FAILED INSPECTION, THE TECHNICIAN STILL PROCEEDED TO TEST THE EMISSIONS OF THE CAR. NEEDLESS TO SAY, THE EMISSIONS FAILED BECAUSE OF HC (HIGH CARBON) WHICH CAN BE ATTRIBUTED TO THE MISFIRING OF MULTIPLE CYLINDERS, WHICH IS THEN ASSOCIATED TO THE LACK OF POWER THE VEHIC
Mileage: 143,000
UNDER NORMAL DRIVING CONDITION ENGINE STARTED REVVING UP TO ABOUT 3500 RPM AS IF I PRESSED THE ACCELERATOR PEDAL. FREAKY EXPERIENCE BUT LUCKILY THE ROAD WASN'T TOO BUSY. I SLOWED DOWN TO THE SIDE OF THE ROAD (WAS DRIVING IN PORTLAND OREGON INNER CITY AREA) BY PRESSING THE BRAKES AND FLIPPING THE CAR INTO NEUTRAL BUT THE ENGINE KEPT REVVING UP AROUND 3000-4000RPM. WHEN I TURNED THE ENGINE OFF AND STARTED IT AGAIN, IT WASN'T SO BAD BUT THE ENGINE WAS STILL REVVING UP AND DOWN BY ITSELF BETWEEN ABOUT 750 AND 2000RPM. I ALSO NOTICED THAT THE CAR HAD GONE INTO - WHAT I LATER READ ON INTERNET TO BE CALLED - LIMP HOME MODE WHICH MADE IT VERY ANNOYING FOR ME TO DRIVE. RESEARCH ON INTERNET TELLS ME MY E320 WAGON WITH THE M104 ENGINE HAS A TYPE OF BIODEGRADABLE ENGINE WIRING HARNESS WHICH FALLS APART AND SHOULD BE REPLACED. I LOVE MY MERCEDES AND IT DRIVES BEAUTIFULLY, BUT THAT WIRING HARNESS PROBLEM MAKES IT A PROBLEMATIC CAR, AND DANGEROUS TOO. I AM NOT WILLING TO SPEND $1,500 ON A NEW HARNESS
Mileage: 162,000
DUE TO THE DEFECTIVE WIRING HARNESS KNOWN TO EXIST ON MANY MERCEDES BENZ VEHICLES MADE FROM 1990 ON, I HAVE THE EXCESSIVE EXPENSE OF REPAIRING AND REPLACING EXPENSIVE PARTS (THE ENGINE WIRING HARNESS) IN THIS VEHICLE THAT FAILED PREMATURELY DUE TO FAULTY WIRING INSULATION. THE WIRING INSULATION IS INEFFICIENT AND WAS CORRECTED ON LATER MODELS, BUT CONSIDERING THAT IT IS A POOR DESIGN ON MERCEDES PART, I BELIEVE THAT THE CONSUMER SHOULD NOT BE HELD RESPONSIBLE FOR THE WIRING ISSUE. THESE CARS DO JUSTIFY THEIR PRICE IF MAINTAINED PROPERLY, AND MY VEHICLE IS OLDER AND ASIDE FROM THE WIRING HARNESS, IS IN GOOD RUNNING ORDER; YET ME, AS A CUSTOMER WHO PAYS THE PRICE TO MAINTAIN MY VEHICLE, I DO NOT FEEL THAT IT IS JUSTIFIED THAT MERCEDES ORIGINALLY INCLUDED IN THE VEHICLE PRICE THE COST OF A SUPPOSED QUALITY WIRING HARNESS, YET WHEN IT FAILS DUE TO A DESIGN FLAW, THE CONSUMER PAYS THE PRICE TO HAVE IT REPLACED WITH WHAT SHOULD HAVE ORIGINALLY BEEN INSTALLED. IT IS UNDERSTANDABLE THAT IN
Mileage: 174,000
DUE TO THE DEFECTIVE WIRING HARNESS KNOWN TO EXIST ON MANY MERCEDES BENZ VEHICLES MADE FROM 1990 ON, I HAVE THE EXCESSIVE EXPENSE OF REPAIRING AND REPLACING EXPENSIVE PARTS (THE ENGINE WIRING HARNESS) IN THIS VEHICLE THAT FAILED PREMATURELY DUE TO FAULTY WIRING INSULATION. THE WIRING INSULATION IS INEFFICIENT AND WAS CORRECTED ON LATER MODELS, BUT CONSIDERING THAT IT IS A POOR DESIGN ON MERCEDES PART, I BELIEVE THAT THE CONSUMER SHOULD NOT BE HELD RESPONSIBLE FOR THE WIRING ISSUE. THESE CARS DO JUSTIFY THEIR PRICE IF MAINTAINED PROPERLY, AND MY VEHICLE IS OLDER AND ASIDE FROM THE WIRING HARNESS, IS IN GOOD RUNNING ORDER; YET ME, AS A CUSTOMER WHO PAYS THE PRICE TO MAINTAIN MY VEHICLE, I DO NOT FEEL THAT IT IS JUSTIFIED THAT MERCEDES ORIGINALLY INCLUDED IN THE VEHICLE PRICE THE COST OF A SUPPOSED QUALITY WIRING HARNESS, YET WHEN IT FAILS DUE TO A DESIGN FLAW, THE CONSUMER PAYS THE PRICE TO HAVE IT REPLACED WITH WHAT SHOULD HAVE ORIGINALLY BEEN INSTALLED. IT IS UNDERSTANDABLE THAT IN
Mileage: 174,000
DUE TO THE DEFECTIVE WIRING HARNESS KNOWN TO EXIST ON MANY MERCEDES BENZ VEHICLES MADE FROM 1990 ON, I HAVE THE EXCESSIVE EXPENSE OF REPAIRING AND REPLACING EXPENSIVE PARTS (THE ENGINE WIRING HARNESS) IN THIS VEHICLE THAT FAILED PREMATURELY DUE TO FAULTY WIRING INSULATION. THE WIRING INSULATION IS INEFFICIENT AND WAS CORRECTED ON LATER MODELS, BUT CONSIDERING THAT IT IS A POOR DESIGN ON MERCEDES PART, I BELIEVE THAT THE CONSUMER SHOULD NOT BE HELD RESPONSIBLE FOR THE WIRING ISSUE. THESE CARS DO JUSTIFY THEIR PRICE IF MAINTAINED PROPERLY, AND MY VEHICLE IS OLDER AND ASIDE FROM THE WIRING HARNESS, IS IN GOOD RUNNING ORDER; YET ME, AS A CUSTOMER WHO PAYS THE PRICE TO MAINTAIN MY VEHICLE, I DO NOT FEEL THAT IT IS JUSTIFIED THAT MERCEDES ORIGINALLY INCLUDED IN THE VEHICLE PRICE THE COST OF A SUPPOSED QUALITY WIRING HARNESS, YET WHEN IT FAILS DUE TO A DESIGN FLAW, THE CONSUMER PAYS THE PRICE TO HAVE IT REPLACED WITH WHAT SHOULD HAVE ORIGINALLY BEEN INSTALLED. IT IS UNDERSTANDABLE THAT IN
Mileage: 174,000
STARTED THE CAR AT WORK AND IT WAS RUNNING ROUGH HAD NO ACCELERATION. WENT INTO LIMP HOME MODE AND I WAS ABLE TO GET HOME. MY HUSBAND IS A MECHANIC AND FOUND THE WIRING HARNESS WAS DETERIORATING, FLAKING AND FALLING APART EXPOSING ALL THE WIRES. THE CAR WOULD NO LONG EVEN START. I CALLED MERCEDES TO SEE IF THEY WOULD HELP WITH THE COST OF THE PART REPLACEMENT. THEY DENIED ANY PROBLEM WITH THE PRODUCT AND WOULD NOT ASSIST IN ANY REPAIR. I LOGGED A COMPLAINT WITH THEM UNDER MY NAME AND HAVE TRIED MANY TIMES TO GET ASSISTANCE WITH THE REPAIR. THE CAR IS STILL SITTING IN MY DRIVEWAY AS THE REPLACEMENT HARNESS IS OVER A $1000. *TR
STARTED THE CAR AT WORK AND IT WAS RUNNING ROUGH HAD NO ACCELERATION. WENT INTO LIMP HOME MODE AND I WAS ABLE TO GET HOME. MY HUSBAND IS A MECHANIC AND FOUND THE WIRING HARNESS WAS DETERIORATING, FLAKING AND FALLING APART EXPOSING ALL THE WIRES. THE CAR WOULD NO LONG EVEN START. I CALLED MERCEDES TO SEE IF THEY WOULD HELP WITH THE COST OF THE PART REPLACEMENT. THEY DENIED ANY PROBLEM WITH THE PRODUCT AND WOULD NOT ASSIST IN ANY REPAIR. I LOGGED A COMPLAINT WITH THEM UNDER MY NAME AND HAVE TRIED MANY TIMES TO GET ASSISTANCE WITH THE REPAIR. THE CAR IS STILL SITTING IN MY DRIVEWAY AS THE REPLACEMENT HARNESS IS OVER A $1000. *TR
TL* THE CONTACT OWNS A 1994 MERCEDES BENZ E-320 CONVERTIBLE. THE CONTACT STATED THAT AFTER TAKING THE VEHICLE FOR REGULAR MAINTENANCE, SHE WAS NOTIFIED THAT THE ENGINE WIRING HARNESS WAS EXPOSED. THE MECHANIC ADVISED THAT THE WIRING HARNESS BE REPLACED SINCE IT WAS DETERIORATING AND COULD CAUSE A FIRE. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE WHO DID NOT OFFER ANY ASSISTANCE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND THE CURRENT MILEAGE WAS 150,508.
Mileage: 150,508
ENGINE WIRING HARNESS IS DETERIORATING AND WIRES ARE EXPOSED. THIS IS A MERCEDES BENZ MANUFACTURING PROBLEM AND THEY WILL NOT TAKE RESPONSIBILITY FOR A RECALL. THIS PROBLEM CAN CASE INJURY AND DEATH. MY CAR WILL NOT PASS INSPECTION BECAUSE OF THIS. *TR
Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Read our methodology — how this data is sourced, computed, and verified.