Total Complaints
14 filings
MERCEDES-BENZ C280 · model year
14 NHTSA complaints for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 1994MERCEDES-BENZC280 carries 14 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 6 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 1994 C280 is electrical system with 8 filings, followed by engine (4) and power train (1). 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 C280. 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
14 filings
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
At or below the fleet median complaint volume.
| Component | Count |
|---|---|
| ELECTRICAL SYSTEM | 8 |
| ENGINE | 4 |
| POWER TRAIN | 1 |
| VISIBILITY/WIPER | 1 |
I JUST BOUGHT THIS W202 94' C280 WITH 150K IN THE SPRING TIME WHICH SURPRISINGLY RAN FINE WITH NO ISSUES, CONSIDERING SOME OF THE LOOM ON THE ELECTRICAL WIRES GOING TO THE CONNECTORS AND SENSORS IS ENTIRELY DISINTEGRATED AND INSULATION IS BREAKING APART LEAVING BARE COPPER WIRES NEAR EACH OTHER OR NEAR METAL BRACKETS. NOW ENTERING THE WINTER TIME WITH INCREASED MOISTURE AND RAIN IT SEEMS TO BE AFFECTING THE VEHICLE MORE SUCH AS CAUSING UNWANTED OPERATION OF COMPONENTS AT FREEWAY SPEEDS LIKE THE EGR WHICH IS ONE OF THE AFFECTED COMPONENTS ON THE DEGRADING LOOM, JUST AS THE SAI AND THE ALTERNATOR POWER WIRES. THE SAI NO LONGER WORKS TO WARM UP MY CAR QUICKER AND THEREFORE THERE IS AN INCREASE OF EMISSIONS AT STARTUP. SOMETIMES THE CAR CHARGING SYSTEM FUNCTIONS VERY POORLY TO WHERE THE BATTERY IS NEARLY DISCHARGED AND EVERYTHING BARELY WORKS, OTHER DAYS WORKS FINE. MOST IMPORTANT OF ALL THE IGNITION COIL AND WIRE CABLES ARE JUST NOW BEING AFFECTED AS WELL TO WHICH AT IDLE I HAVE INTERMIT
Mileage: 170,000
I JUST BOUGHT THIS W202 94' C280 WITH 150K IN THE SPRING TIME WHICH SURPRISINGLY RAN FINE WITH NO ISSUES, CONSIDERING SOME OF THE LOOM ON THE ELECTRICAL WIRES GOING TO THE CONNECTORS AND SENSORS IS ENTIRELY DISINTEGRATED AND INSULATION IS BREAKING APART LEAVING BARE COPPER WIRES NEAR EACH OTHER OR NEAR METAL BRACKETS. NOW ENTERING THE WINTER TIME WITH INCREASED MOISTURE AND RAIN IT SEEMS TO BE AFFECTING THE VEHICLE MORE SUCH AS CAUSING UNWANTED OPERATION OF COMPONENTS AT FREEWAY SPEEDS LIKE THE EGR WHICH IS ONE OF THE AFFECTED COMPONENTS ON THE DEGRADING LOOM, JUST AS THE SAI AND THE ALTERNATOR POWER WIRES. THE SAI NO LONGER WORKS TO WARM UP MY CAR QUICKER AND THEREFORE THERE IS AN INCREASE OF EMISSIONS AT STARTUP. SOMETIMES THE CAR CHARGING SYSTEM FUNCTIONS VERY POORLY TO WHERE THE BATTERY IS NEARLY DISCHARGED AND EVERYTHING BARELY WORKS, OTHER DAYS WORKS FINE. MOST IMPORTANT OF ALL THE IGNITION COIL AND WIRE CABLES ARE JUST NOW BEING AFFECTED AS WELL TO WHICH AT IDLE I HAVE INTERMIT
Mileage: 170,000
ELECTRICAL HARNESS DISINTEGRATED, AND UPPER OLD SEAL IS INFERIOR AND HAS LEAKED SINCE 1995 VIN NUMBER [XXX]. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR
TL* THE CONTACT OWNS A 1994 MERCEDES-BENZ C280. WHILE THE VEHICLE WAS IDLING IN THE DRIVEWAY, SMOKE APPEARED UNDER THE HOOD. THE CONTACT NOTICED THAT THE WIRES AND INSTALLATION WERE ON FIRE UNDER THE HOOD. THE CONTACT EXTINGUISHED THE FIRE. THE VEHICLE WAS TAKEN TO THE DEALER WHERE A NEW WIRING HARNESS WAS INSTALLED AND A FEW SENSORS WERE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 165,000.
Mileage: 165,000
ENGIN WIRING HARNESS COUGHT FIRE CAR WAS PARKED IN THE GARAGE ..
Mileage: 193,000
ENGINE BEGAN TO MAKE A "BUZZSAW" GRINDING SOUND THAT WAS NOT INITIALLY NOTICED WHILE DRIVING ALONG ON AN 85 MILE INTERSTATE HIGHWAY TRIP. WHILE TRAVELING AT 60 MPH ON A 6 LANE HIGHWAY, ALL THE DASHBOARD LIGHTING BEGAN TO DIM AND MALFUNCTION, THE ELECTRICAL SYSTEM THEN COMPLETELY FAILED AND SHUT DOWN CAUSING THE ENGINE TO STALL OUT, STEERING AND BRAKE FUNCTION BECAME SIGNIFICANTLY DEGRADED DUE TO ENGINE FAILURE (INCLUDING COMPLETE STOPPAGE OF THE WINDSHIELD WIPERS DURING A HEAVY RAIN DOWNPOUR) SAFELY EXITED ROADWAY BY MANEUVERING AROUND TRAFFIC AND COASTING TO ROAD SIDE SHOULDER AT WHICH POINT SMOKE STARTED POURING OUT FROM UNDER HOOD AND FILLING THE PASSENGER COMPARTMENT. CAR WAS SUBSEQUENTLY TOWED TO A MERCEDES DEALERSHIP WHERE THEY IDENTIFIED THE CAUSE OF THE FAILURE AND FIRE AS A SEVERELY DEGRADED ENGINE WIRING HARNESS. THE HARNESS WIRING INSULATION WAS FOUND TO BE BRITTLE, CRACKING AND FALLING APART, LEAVING INDIVIDUAL BARE COPPER WIRES TO MAKE CONTACT WITH EACH OTHER. THIS CONDIT
Mileage: 62,928
ENGINE BEGAN TO MAKE A "BUZZSAW" GRINDING SOUND THAT WAS NOT INITIALLY NOTICED WHILE DRIVING ALONG ON AN 85 MILE INTERSTATE HIGHWAY TRIP. WHILE TRAVELING AT 60 MPH ON A 6 LANE HIGHWAY, ALL THE DASHBOARD LIGHTING BEGAN TO DIM AND MALFUNCTION, THE ELECTRICAL SYSTEM THEN COMPLETELY FAILED AND SHUT DOWN CAUSING THE ENGINE TO STALL OUT, STEERING AND BRAKE FUNCTION BECAME SIGNIFICANTLY DEGRADED DUE TO ENGINE FAILURE (INCLUDING COMPLETE STOPPAGE OF THE WINDSHIELD WIPERS DURING A HEAVY RAIN DOWNPOUR) SAFELY EXITED ROADWAY BY MANEUVERING AROUND TRAFFIC AND COASTING TO ROAD SIDE SHOULDER AT WHICH POINT SMOKE STARTED POURING OUT FROM UNDER HOOD AND FILLING THE PASSENGER COMPARTMENT. CAR WAS SUBSEQUENTLY TOWED TO A MERCEDES DEALERSHIP WHERE THEY IDENTIFIED THE CAUSE OF THE FAILURE AND FIRE AS A SEVERELY DEGRADED ENGINE WIRING HARNESS. THE HARNESS WIRING INSULATION WAS FOUND TO BE BRITTLE, CRACKING AND FALLING APART, LEAVING INDIVIDUAL BARE COPPER WIRES TO MAKE CONTACT WITH EACH OTHER. THIS CONDIT
Mileage: 62,928
ENGINE BEGAN TO MAKE A "BUZZSAW" GRINDING SOUND THAT WAS NOT INITIALLY NOTICED WHILE DRIVING ALONG ON AN 85 MILE INTERSTATE HIGHWAY TRIP. WHILE TRAVELING AT 60 MPH ON A 6 LANE HIGHWAY, ALL THE DASHBOARD LIGHTING BEGAN TO DIM AND MALFUNCTION, THE ELECTRICAL SYSTEM THEN COMPLETELY FAILED AND SHUT DOWN CAUSING THE ENGINE TO STALL OUT, STEERING AND BRAKE FUNCTION BECAME SIGNIFICANTLY DEGRADED DUE TO ENGINE FAILURE (INCLUDING COMPLETE STOPPAGE OF THE WINDSHIELD WIPERS DURING A HEAVY RAIN DOWNPOUR) SAFELY EXITED ROADWAY BY MANEUVERING AROUND TRAFFIC AND COASTING TO ROAD SIDE SHOULDER AT WHICH POINT SMOKE STARTED POURING OUT FROM UNDER HOOD AND FILLING THE PASSENGER COMPARTMENT. CAR WAS SUBSEQUENTLY TOWED TO A MERCEDES DEALERSHIP WHERE THEY IDENTIFIED THE CAUSE OF THE FAILURE AND FIRE AS A SEVERELY DEGRADED ENGINE WIRING HARNESS. THE HARNESS WIRING INSULATION WAS FOUND TO BE BRITTLE, CRACKING AND FALLING APART, LEAVING INDIVIDUAL BARE COPPER WIRES TO MAKE CONTACT WITH EACH OTHER. THIS CONDIT
Mileage: 62,928
THE CAR BEGAN TO SLOW DOWN UNCONTROLLABLY. THE CAR SHOOK AND DIED. I WAS ON I-75 IN ATLANTA, GA. THE SHOP SAID THAT IT WAS DUE TO A FAULTY ENGINE WIRING HARNESS, SOMETHING THAT MERCEDES IS AWARE OF. I WAS ALMOST KILLED. *TR
Mileage: 173,000
THE CAR BEGAN TO SLOW DOWN UNCONTROLLABLY. THE CAR SHOOK AND DIED. I WAS ON I-75 IN ATLANTA, GA. THE SHOP SAID THAT IT WAS DUE TO A FAULTY ENGINE WIRING HARNESS, SOMETHING THAT MERCEDES IS AWARE OF. I WAS ALMOST KILLED. *TR
Mileage: 173,000
THE AIR INTAKE SENSOR WIRE WENT ON FIRE DUE TO CORRODED INSULATION ON WIRES. *TR
Mileage: 113,000
ON MY WAY HOME, MY WIFE CAR START TO RUN ROUGHTLY AND SEE SMOKE COMING FROM MOTOR HOOD, LOOK FOR A PLACE TO STOP SAFELY AND OPEN THE HOOD, FIRE WAS ALL OVER, WIRES HARNESS WAS BURNING AND OTHER INSULATE MATERIALS, I GET FROM MY TRUNK THE FIRE EXTINGUISHER AND SPRAY ON THE FIRE, LUCKELY I WAS DRIVING MY WIFE CAR. I KNOW MANY CARS OF THAT YEAR HAVE THE SAME PROBLEM AND MERCEDES DO NOTHING TO FIX THE PROBLEM, MY CAR WAS ALWAYS IN OUR GARAGE. WHAT CAN I DO TO FIX THE PROBLEM, I EAR IT WILL COST MORE THAN $ 3,000 REPLACE THE WIRE HARNESS. *TR
Mileage: 190,000
CAR STARTED STALLING AND TRANSMISSION REFUSED TO UPSHIFT. WHEN CAR SLOWED IT WOULD NOT ACCELERATE AGAIN. TURNS OUT THE ENGINE WIRING HARNESS FAILED DUE TO A BIODEGRADABLE TYPE OF INSULATION USED AND IS SHORTING OUT IN MULTIPLE PLACES. CAR STARTED TO SMOKE AT ONE POINT. THIS CAUSED DANGEROUS ENGINE MALFUNCTION--AND A FIRE-COULD HAVE BEEN STARTED INSIDE MY ENGINE COMPARTMENT. *TR
Mileage: 96,957
CAR STARTED STALLING AND TRANSMISSION REFUSED TO UPSHIFT. WHEN CAR SLOWED IT WOULD NOT ACCELERATE AGAIN. TURNS OUT THE ENGINE WIRING HARNESS FAILED DUE TO A BIODEGRADABLE TYPE OF INSULATION USED AND IS SHORTING OUT IN MULTIPLE PLACES. CAR STARTED TO SMOKE AT ONE POINT. THIS CAUSED DANGEROUS ENGINE MALFUNCTION--AND A FIRE-COULD HAVE BEEN STARTED INSIDE MY ENGINE COMPARTMENT. *TR
Mileage: 96,957
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.