Total Complaints
4 filings
Mercedes-Benz 420 · model year
1991 Mercedes-Benz 420
4 NHTSA complaints, 1 crash report. 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
- Complaints
- 4
- Recalls
- 0
The verdict
The 1991 Mercedes-Benz 420 posts below-average complaint volume among its own model-year siblings.
- Top 45%
- fewest complaints, own model years
- 0
- recall campaigns
The 1991Mercedes-Benz420 carries 4 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 1 crash, 1 fire, 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 1991 420 is suspension:front with 1 filings, followed by unknown or other (1) and equipment:appliance:air conditioner (1). 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 1991 420. 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.
4
Complaints
1
Crashes
1
Fires
0
Injuries
0
Deaths
F
PlainCars Safety Score
0/100
1991 Mercedes-Benz 420
PlainCars' own composite of NHTSA NCAP crash-test ratings and rollover-risk assessment, each dimension normalized against the federal scale or the full national model-year corpus. Not an official NHTSA figure, and not a substitute for a specific vehicle's VIN-level recall check.
NHTSA Overall Rating N/A
Not rated
NHTSA New Car Assessment Program overall crash-test rating.
Front Crash N/A
Not rated
Frontal barrier crash-test rating.
Side Crash N/A
Not rated
Side barrier and pole crash-test rating.
Rollover Resistance N/A
Not rated
Static stability factor + dynamic rollover test rating.
Rollover Risk N/A
Not reported
NHTSA single-vehicle rollover probability, dynamic test.
Crashes Reported
1 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 |
|---|---|
| SUSPENSION:FRONT | 1 |
| UNKNOWN OR OTHER | 1 |
| EQUIPMENT:APPLIANCE:AIR CONDITIONER | 1 |
| AIR BAGS:FRONTAL | 1 |
Recent Complaints
20050331CrashAIR BAGS:FRONTAL
THE DRIVER'S SIDE AIR BAGS DID NOT DEPLOY WHEN THE CONSUMER WAS INVOLVED IN AN FRONT END COLLISION WITH HIS 1991 MERCEDES BENZ 420 SEL. **NAR*** *NM *SC *JB
19991001EQUIPMENT:APPLIANCE:AIR CONDITIONER
NO SUMMARY.
19990504FireUNKNOWN OR OTHER
NO SUMMARY
19950613SUSPENSION:FRONT
THE VEHICLE'S FRONT END WILL NOT STAY IN ALIGNMENT, CAUSING THE VEHICLE TO WANDER, ALSO EXCESSIVE WEAR ON THE TIRES. TT
Compare 1991Mercedes-Benz420 to Similar Vehicles
NHTSA Investigations
Vehicle Safety Guides
Frequently Asked Questions
How many complaints does the 1991 Mercedes-Benz 420 have?▼
The 1991 Mercedes-Benz 420 has 4 NHTSA complaints, 1 crashes, 1 fires, 0 injuries, and 0 deaths reported.
What are the most common problems with the 1991 Mercedes-Benz 420?▼
The most-complained component for the 1991 Mercedes-Benz 420 is SUSPENSION:FRONT with 1 complaints. Other frequently reported areas include UNKNOWN OR OTHER and EQUIPMENT:APPLIANCE:AIR CONDITIONER.
Is the 1991 Mercedes-Benz 420 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.
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 1991 Mercedes-Benz 420; 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.