Total Complaints
2 filings
MERCEDES-BENZ 300 · model year
2 NHTSA complaints for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 1998MERCEDES-BENZ300 carries 2 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 0 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 1998 300 is fuel system, gasoline:storage:tank assembly with 1 filings, followed by service brakes, air:antilock (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 1998 300. 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
2 filings
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
At or below the fleet median complaint volume.
| Component | Count |
|---|---|
| FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY | 1 |
| SERVICE BRAKES, AIR:ANTILOCK | 1 |
VERY PREMATURE BRAKE PAD AND ROTER REPLACEMENT REQUIRED, I HAVE SPOKEN TO DOZENS OF OWNERS OF THIS SAME VEHICLE AND WE ALL HAVE THE SAME COMPLAINT. WHERE BRAKES TRADITIONALLY LAST 30,000 MILES +/- THIS MODELS BRAKES LAST 8,000-12,000 MILES. TECHNICIAN AT
FRIDAY MORNING - 9:30 A.M. - 4/23/99 I DROVE FROM MY HOME (2368 BURMA HILLS DRIVE ) TO THE BOYS AND GIRLS CLUB ON MICHIGAN AVENUE. AND PARKED IN THEIR PARKING LOT. AFTER I HAD BEEN THERE APPROXIMATELY 20 MINUTES I WAS NOTIFIED MY GAS TANK WAS LEAKING BADLY. WITHTHE HELP OF CLUB EMPLOYEES WE SECURED THE AREA, AND PUT A LARGE CONTAINER UNDER THE VEHICLE TO CATCH THE GAS. AAA WAS CALLED TO TKE MY VEHICLE TO MCCONNELL AUTOMOTIVE . THE MANUFACTURER (MERCEDES) WAS CONTACTED AND INFORMED AND THEY INFORMED US THAT THE GAS TANK WAS NOT GUARANTEED AGAINST ROAD HAZARDS. I THINK THIS COMPLETELY EXPOSED PLASTIC TANK IS EXTREMELY DANGEROUS, ESPECIALLY SINCE IT IS ON A SPORTS UTILITY VEHICLE WHICH IS ADVERTISED FOR OFF THE ROAD USEAGE. I THINKTHE TANK SHOULD BE PROTECTED BY A STEEL GLIDE PLATE. THEY INFORMED ME THAT I COUD NOT INSTALL A PROTECTIVE PLATE OR IT WOULD VOID MY VEHICLE WARRANTY. FRANKLY I AM SCARED TO DRIVE THE VEHICLE NOW THAT I SEE HOW VULNERABLE THE FUEL TANK IS TO DAMAGE. *A
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.