2009 Mercedes Benz Ml350: Reliability Data

Source: NHTSA — 105 complaints
105
Total Complaints
69,750mi
Median Mileage
AIR BAGS
Top Issue
2
Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

50,150 25th Percentile
69,750 Median Mileage
96,750 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

AIR BAGS
40
SEAT BELTS
18
ELECTRICAL SYSTEM
16
EXTERIOR LIGHTING
5
FUEL/PROPULSION SYSTEM
4
SERVICE BRAKES
4
STRUCTURE:BODY
3
UNKNOWN OR OTHER
2
STRUCTURE
1
STRUCTURE:BODY:HATCHBACK/LIFTGATE
1

Severity Assessment

2
Crashes
8
Fires
4
Injuries
0
Deaths

Sample Complaint Reports

"TL* THE CONTACT OWNS A 2009 MERCEDES BENZ ML350. THE CONTACT STATED THAT THE VEHICLE HATCHBACK DOOR DID NOT COME EQUIPPED WITH A SENSOR THAT WOULD PREVENT THE DOOR FROM CLOSING IF A PERSON WAS IN THE DOOR PATH. THE VEHICLE WAS TAKEN TO THE DEALER WHO ADVISED THAT THE VEHICLE WAS NOT DESIGNED WITH A..."
"FUEL TANK LEAK. GAS SMELL INSIDE OF VEHICLE WAS SO BAD THAT IT MADE ME SICK. MERCEDES DEALER FIXED IT UNDER WARRANTY: CHANGED THE SEALS ON THE FUEL TANK. *TR"
"I HAVE A 2009 MERCEDES ML 350. ABOUT A WEEK AGO, MY BREAK FLUID LIGHT CAME ON. I TOOK IT INTO THE DEALERSHIP, AND THEY TOPPED THE FLUID OFF. A FEW DAYS PASSED, AND THE LIGHT WENT ON AGAIN. I TOOK IT INTO THE DEALERSHIP, AND IT WAS VERIFIED THAT "THE PRESSURE DROPS AFTER SEVERAL MINUTES. (THEY) FOUND..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28