Total Complaints
1 filings
MERCEDES-BENZ 129 · model year
1 NHTSA complaints. A VIN lookup is required to determine whether a specific vehicle has an unrepaired recall.
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.
The most frequently selected component label in reports for the 1994 129 is electrical system with 1 filings. Complaint categories reflect owner reports and intake categorization; they do not establish a defect pattern or cause.
NHTSA currently has 15 investigation files overlapping the 1994 129. Owners comparing this cohort against neighboring years should read the complaint-by-year trend as report volume, not a causal diagnosis. Use the related-complaint feed and the official recall lookup when researching a specific vehicle.
Total Complaints
1 filings
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
At or below the fleet median complaint volume.
| Component | Count |
|---|---|
| ELECTRICAL SYSTEM | 1 |
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
Data vintage: August 2026. 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.
Every figure on PlainCars is rendered directly from NHTSA complaint and safety data, no number is typed in by an editor. This year-specific record is rendered from NHTSA ODI, recall, and NCAP rows for the 1994 MERCEDES-BENZ 129; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.
Read our methodology - how this data is sourced, computed, and verified.