Total Complaints
1 filings
MERCEDES-BENZ 300SD · model year
1992 MERCEDES-BENZ 300SD
1 NHTSA complaints for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 1992MERCEDES-BENZ300SD carries 1 consumer safety complaint 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 1992 300SD is electrical system with 1 filings. 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 1992 300SD. 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.
1
Complaints
0
Crashes
0
Fires
0
Injuries
0
Deaths
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
Complaints vs. fleet median (215)
At or below the fleet median complaint volume.
Complaints by Component
| Component | Count |
|---|---|
| ELECTRICAL SYSTEM | 1 |
Recent Complaints
20140617ELECTRICAL SYSTEM
ENGINE WIRING HARNESS PART# 140 540 2005. THIS HARNESS HAS COMPLETELY DETERIORATED CAUSING THE ENGINE TO BE INOPERABLE. AFTER MONTHS OF RESEARCH ONLINE AND PHONE CALLS TO MB I HAVE NO PARTS AND NO ANSWERS TO THE PROBLEM. SO MANY OF THESE CARS HAVE HAD THESE PROBLEMS AND YET NO RECALL HAS BEEN ISSUED. WHY? IT IS A FIRE WAITING TO HAPPEN. THERE ARE MANY HARNESS AVAILABLE FOR VARIOUS MODELS WITH THE INFAMOUS "BIODEGRADABLE" WIRING PROBLEM. THERE ARE MANY DIFFERENT PRICE RANGES ALSO, BUT THEY ARE AVAILABLE. AS FOR THE ONE THAT I NEED IT IS NOT AVAILABLE AT ANY COST. THIS IS ABOVE ALL THE MOST CONFUSING AND UNBELIEVABLE THING I HAVE HEARD CONCERNING AN ISSUE FOR WHICH THE MANUFACTURER KNOWS IS A PROBLEM. THE NHTSA NOT RECOGNIZING THIS AS A SAFETY PROBLEM IS ABSOLUTELY UNACCEPTABLE. YOU WOULD THINK THE COMPANY THAT INVENTED THE AUTOMOBILE WOULD STEP UP AND GIVE A RESOLUTION TO THE PROBLEM. *TR
Mileage: 195,560
Compare 1992MERCEDES-BENZ300SD to Similar Vehicles
NHTSA Investigations
Frequently Asked Questions
How many complaints does the 1992 MERCEDES-BENZ 300SD have?▼
The 1992 MERCEDES-BENZ 300SD has 1 NHTSA complaints, 0 crashes, 0 fires, 0 injuries, and 0 deaths reported.
What are the most common problems with the 1992 MERCEDES-BENZ 300SD?▼
The most-complained component for the 1992 MERCEDES-BENZ 300SD is ELECTRICAL SYSTEM with 1 complaints. Other frequently reported areas include various components.
Is the 1992 MERCEDES-BENZ 300SD safe to buy?▼
Review the complaint history, crash and fire reports, safety ratings, and recall status on this page to make an informed decision. No NHTSA crash test rating is available for this model year. Compare with other model years using the links above.
Where does this data come from?▼
All complaint, recall, and safety rating data is sourced from the National Highway Traffic Safety Administration (NHTSA). Complaints are filed by vehicle owners through NHTSA's Office of Defects Investigation.
Vehicle Safety Guides
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.