Total Complaints
9 filings
MERCEDES-BENZ E CLASS · model year
9 NHTSA complaints for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 1993MERCEDES-BENZE CLASS carries 9 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 2 fires, 0 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 1993 E CLASS is electrical system:wiring:front underhood with 2 filings, followed by electrical system:wiring (2) and electrical system (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 1993 E CLASS. 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
9 filings
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
At or below the fleet median complaint volume.
| Component | Count |
|---|---|
| ELECTRICAL SYSTEM:WIRING:FRONT UNDERHOOD | 2 |
| ELECTRICAL SYSTEM:WIRING | 2 |
| ELECTRICAL SYSTEM | 2 |
| ELECTRICAL SYSTEM:IGNITION:MODULE | 1 |
| ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:CONTROL MODULE | 1 |
| FUEL SYSTEM, GASOLINE | 1 |
RECENTLY MY 53K MILE (VERY LOW MILEAGE) 1993 MERCEDES 300E 2.8 SUDDENLY STALLED (WITHOUT ANY WARNING) ON A LOCAL EXPRESSWAY, WHICH ALMOST CAUSED A SERIOUS CAR ACCIDENT (THE CAR FROM BEHIND ALMOST HIT ME). AFTER I HIRED A MECHANIC TO TAKE A LOOK, HE FOUND THAT THE ENGINE STALL WAS CAUSED BY BIO-DEGRADABLE ENGINE WIRING HARNESS THAT WAS INSTALLED IN THIS CAR (ALSO SEE HTTP://WWW.MERCEDESDEFECTS.COM/2008/04/WIRE-HARNESS-DEFECT.HTML#COMMENT-FORM). I CALLED MERCEDES CUSTOMER SERVICE BUT THEY TOLD ME THERE IS NO RECALL ON THIS CAR. THIS ENGINE STALL ISSUE HAPPENED AGAIN FEW DAYS AGO, AND IT'S MAKING SUCH A WELL-MAINTAINED LOW MILEAGE VEHICLE UNSAFE TO DRIVE. I URGE THE NHTSA SHOULD CONTACT MERCEDES AND ISSUE A FORMAL RECALL FOR THIS ISSUE. THANKS! *TR
Mileage: 53,999
WIRING HARNESS DEFECT / FAILURE, LEADING TO INOPERABLE AND FIRE. *TR
Mileage: 155,000
WIRING HARNESS DEFECT / FAILURE, LEADING TO INOPERABLE AND FIRE. *TR
Mileage: 155,000
THE INSULATION ON THE ENGININE WIREING HARNESS HAS DISENTIGRATED. THIS IS THE ENGINE / FUEL INJECTION WIRING HARNESS AND IS A MAJOR PROBLEM WITH 1991-1996 MERCEDES-BENZ M104 ENGINES. THIS IS A MAJOR FIRE RISK AS WELL AS AN ACCIDENT HAZARD AS IT WILL CAUSE THE ENGINE (AND POWER STEERING, BRAKES, ETC.) TO FAIL AT SPEED. MERCEDES WILL NOT RECALL THE PART AND RELACEMENT IS THOUSANDS OF DOLLARS.
DT*: THE CONTACT STATED WHILE DRIVING 20 MPH, THE VEHICLE HESITATED WHEN THE ACCELERATOR WAS DEPRESSED. INTENSE PRESSURE ON THE ACCELERATOR PEDAL WAS REQUIRED TO ACCELERATE THE VEHICLE. AFTER BEING TAKEN TO A PRIVATE REPAIR SHOP, THE MECHANIC DETERMINED THAT THE WIRING HARNESS WAS DETERIORATED. THE BATTERY WAS REPLACED, BUT THE PROBLEMS PERSISTED. THERE WAS A NHTSA RECALL # 95V031000, WHICH PERTAINED TO THE WIRING. THE VEHICLE WAS NOT INCLUDED IN THE RECALL DUE TO THE VIN. SECONDLY, WHEN THE VEHICLE WAS PARKED, THE ANTI-THEFT ALARM ACTIVATED, AND WOULD NOT DISENGAGE UNTIL THE BATTERY WAS DISCONNECTED. A MANUFACTURER TECHNICIAN DISCONNECTED THE ANTI-THEFT CONTROLLER, WHICH CORRECTED THE PROBLEM.
Mileage: 53,090
DT*: THE CONTACT STATED WHILE DRIVING 20 MPH, THE VEHICLE HESITATED WHEN THE ACCELERATOR WAS DEPRESSED. INTENSE PRESSURE ON THE ACCELERATOR PEDAL WAS REQUIRED TO ACCELERATE THE VEHICLE. AFTER BEING TAKEN TO A PRIVATE REPAIR SHOP, THE MECHANIC DETERMINED THAT THE WIRING HARNESS WAS DETERIORATED. THE BATTERY WAS REPLACED, BUT THE PROBLEMS PERSISTED. THERE WAS A NHTSA RECALL # 95V031000, WHICH PERTAINED TO THE WIRING. THE VEHICLE WAS NOT INCLUDED IN THE RECALL DUE TO THE VIN. SECONDLY, WHEN THE VEHICLE WAS PARKED, THE ANTI-THEFT ALARM ACTIVATED, AND WOULD NOT DISENGAGE UNTIL THE BATTERY WAS DISCONNECTED. A MANUFACTURER TECHNICIAN DISCONNECTED THE ANTI-THEFT CONTROLLER, WHICH CORRECTED THE PROBLEM.
Mileage: 53,090
THE IGNITION MODULE (ALSO KNOWN AS AN EZL) IN MY 500E SHORTED OUT, CAUSING ME TO LOSE SPARK TO 4 OUT OF 8 ENGINE CYLINDERS (ONE-HALF OF MY ENGINE), AND THRU MY CAR INTO "LIMP-HOME" MODE, NEARLY CAUSING AN ACCIDENT. THIS HAPPENED WHILE I WAS BEGINNING TO MERGE ONTO THE #405 FREEWAY IN LOS ANGELES. I BELIEVE THE DISINTEGRATING ENGINE WIRING HARNESS MERCEDES HAS INSTALLED IN THE MAJORITY OF THEIR MODEL YEAR 1991-1995 PRODUCTION IS WHAT CAUSED THIS OUTRAGEOUSLY EXPENSIVE MODULE TO FAIL, PLACING ME IN A VERY DANGEROUS AND TENSE SITUATION. PLEASE SEE THE FOLLOWING WEB PAGE TO READ NEARLY ONE-HUNDRED FIFTY SIMILAR COMPLAINTS: HTTP://USERS.ADELPHIA.NET/~INFOAGE1/COMPLAINTS_NHTSA_MERCEDES_WIRING_HARNESS_FAILURES_1992_1995.HTML. *NM
Mileage: 70,000
WIRING HARNESS: UNDER HOOD TOP OF MOTOR FAILED. SHEATHING HAS BECOME BRITTLE AND INDIVIDUAL WIRING STRANDS HAVE MELTED TOGETHER. VEHICLE QUIT RUNNING AND WOULD NOT RESTART. BURNT WIRE COULD BE SMELLED WHEN HOOD WAS RAISED.*AK
Mileage: 131,050
MY 1993 300CE WIRING HARNESS HAS TOTALLY DRIED UP AND CRACKED IN NUMEROUS PLACES. RESULTING IN INTERNITTANT ELECTRICAL PROBLEMS AND WASTED DOLLARS SPENT ON TROUBLE SHOOTING.
Mileage: 75,000
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.