Total Complaints
1 filings
MERCEDES-BENZ ML320 · model year
2011 MERCEDES-BENZ ML320
1 NHTSA complaints for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2011MERCEDES-BENZML320 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 2011 ML320 is service brakes 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 2011 ML320. 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 |
|---|---|
| SERVICE BRAKES | 1 |
Recent Complaints
20230104SERVICE BRAKES
Brakes failed without warning. Repair shop removed the covering over brake lines and said they were rusted through. Towed to Mercedes dealership thinking it was part of recall and they said it wasnât only the brake booster. Said nothing about rusted through brake lines! Someoneâs going to get seriously injured driving not knowing their brake lines are rusted through.
Mileage: 110,000
Compare 2011MERCEDES-BENZML320 to Similar Vehicles
NHTSA Investigations
Frequently Asked Questions
How many complaints does the 2011 MERCEDES-BENZ ML320 have?▼
The 2011 MERCEDES-BENZ ML320 has 1 NHTSA complaints, 0 crashes, 0 fires, 0 injuries, and 0 deaths reported.
What are the most common problems with the 2011 MERCEDES-BENZ ML320?▼
The most-complained component for the 2011 MERCEDES-BENZ ML320 is SERVICE BRAKES with 1 complaints. Other frequently reported areas include various components.
Is the 2011 MERCEDES-BENZ ML320 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.