2001 Mercedes Benz Ml320: Reliability Data
When Do Complaints Happen?
Distribution of NHTSA complaints by vehicle mileage at time of report.
What Fails?
Most reported component issues from NHTSA complaints.
Severity Assessment
Sample Complaint Reports
"SOON AFTER PURCHASING NEW VEHICLE GAS GAUGE STARTED TO HAVE DEFECTS. GAUGE WOULD NOT READ GAS MILEAGE CORRECTLY. CONTACTED DEALER, AND DEALER SAID THAT IT WAS A COMMON PROBLEM, AND THEY DIDN'T KNOW WHAT PROBLEM WAS. *AK"
"SECURITY SYSTEM DOES NOT LOCK VEHICLES DOORS. *AK THE REMOTE KEYS DOES NOT OPEN OR CLOSE THE DOOR DUE TO IGNITION LOCK ASSEMBLY FAILURE, IT TOOK DEALER THREE TIMES TO CORRECT THE PROBLEM. *YH"
"THE BAS/ESP LIGHT TURNS ON ON THE DASHBOARD. TOLD BY THE MANUFACTURER TO STOP A CAR, TURN COMPLETE LEFT, AND THEN COMPLETE RIGHT, SWITCH OFF THE ENGINE FOR 10 SECONDS AND START THE ENGINE. FIRST COUPLE OF TIMES THE LIGHT ON THE DASHBOARD DISAPPEARED. ON THE 3RD OCCURRENCE, THE LIGHT STAYED ON. CA..."
Source: NHTSA ODI Complaints Database. Names and identifying details omitted.
When Were Complaints Filed?
Number of complaints by the year the issue occurred.
When Does Each Component Fail?
Median mileage at complaint for top components.
Where Are Complaints Coming From?
Top states by complaint count.
Who Files Complaints?
Mercedes Benz Ml320 — Other Years
See how this model compares across different model years.
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
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