Total Complaints
1 filings
MERCEDES-BENZ 129 · model year
1994 MERCEDES-BENZ 129
1 NHTSA complaints for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 1994MERCEDES-BENZ129 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 1994 129 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 1994 129. 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
20120523ELECTRICAL SYSTEM
THE WIRING HARNESS, OF WHICH THERE ARE THREE, WAS CONSTRUCTED OF AN INSULATION CASE THAT IS BY DESIGN BIODEGRADABLE. THIS WAS A MATERIAL SELECTION DEFECT AND IS CAUSING GREAT EXPENSE AND PAIN TO OWNERS OF THESE CARS. IT IS ALSO DRASTICALLY AFFECTING RESALE VALUE OF THE CARS. UNUSUAL FOR A CAR THAT COST OVER $100K NEW. THEREFORE, THE OUTER CASE OF THE THREE HARNESSES DISINTEGRATES OVER TIME, AND EXPOSES THE INDIVIDUAL WIRES TO EXCESSIVE HEAT FROM THE 12 CYLINER MOTOR - THIS CAUSES THE INSULATION AROUND THOSE INNER WIRES TO CRACK AND DISINTEGRATE, AND OVER TIME LEADS TO FAILURES AND HAZARDS - AND DURING MODEL YEAR 94, 95, 96 - AND CASES ARE NOW BEING REPORTED FOR MODEL YEAR 1997 - IN THE SL600 MODEL - IT IS THE R129 CHASSIS AND IS KNOWN TO AFFECT OTHER CHASSIS THAT USE THE SAME 12 CYLINDER MOTOR. THE FAILURE RATE IS NEARLY 100%. IT IS NOT A QUESTION OF IF IT HAPPENS, IT IS A QUESTION OF WHEN IT HAPPENS. I HAVE CONTACTED MERCEDES ABOUT THIS, AND OFF THE RECORD, THEY ARE WELL AWARE OF
Mileage: 39,000
Compare 1994MERCEDES-BENZ129 to Similar Vehicles
NHTSA Investigations
Frequently Asked Questions
How many complaints does the 1994 MERCEDES-BENZ 129 have?▼
The 1994 MERCEDES-BENZ 129 has 1 NHTSA complaints, 0 crashes, 0 fires, 0 injuries, and 0 deaths reported.
What are the most common problems with the 1994 MERCEDES-BENZ 129?▼
The most-complained component for the 1994 MERCEDES-BENZ 129 is ELECTRICAL SYSTEM with 1 complaints. Other frequently reported areas include various components.
Is the 1994 MERCEDES-BENZ 129 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.