2008 Mercedes Benz Ml550: Reliability Data

Source: NHTSA — 24 complaints
24
Total Complaints
65,677mi
Median Mileage
ELECTRICAL SYSTEM
Top Issue
1
Crash Reports

When Do Complaints Happen?

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

51,355 25th Percentile
65,677 Median Mileage
111,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

ELECTRICAL SYSTEM
5
STEERING
4
SEAT BELTS
2
AIR BAGS
2
UNKNOWN OR OTHER
2
SERVICE BRAKES, HYDRAULIC
2
ENGINE AND ENGINE COOLING
1
FUEL/PROPULSION SYSTEM
1
SUSPENSION
1
BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING
1

Severity Assessment

1
Crashes
0
Fires
1
Injuries
0
Deaths

Sample Complaint Reports

"ON TWO OCCASION WHILE THE VEHICLE WAS IN TRAFFIC/OPERATIONTHE ENGINE STALLED ON TURNING THE CAR. ENGINE HAD TO BE RESTARTED IN ORDER TO UNBLOCK THE STEERING WHEEL AND RESTART THE ENGINE. THIS IS A CERTIFIED VEHICLE AND MERCEDES BENZ CLAIMED THE INCIDENT -A DID NEVER HAPPEN AND B-COULD NOT BE DUPLIC..."
"ON TWO OCCASION WHILE THE VEHICLE WAS IN TRAFFIC/OPERATIONTHE ENGINE STALLED ON TURNING THE CAR. ENGINE HAD TO BE RESTARTED IN ORDER TO UNBLOCK THE STEERING WHEEL AND RESTART THE ENGINE. THIS IS A CERTIFIED VEHICLE AND MERCEDES BENZ CLAIMED THE INCIDENT -A DID NEVER HAPPEN AND B-COULD NOT BE DUPLIC..."
"ON TWO OCCASION WHILE THE VEHICLE WAS IN TRAFFIC/OPERATIONTHE ENGINE STALLED ON TURNING THE CAR. ENGINE HAD TO BE RESTARTED IN ORDER TO UNBLOCK THE STEERING WHEEL AND RESTART THE ENGINE. THIS IS A CERTIFIED VEHICLE AND MERCEDES BENZ CLAIMED THE INCIDENT -A DID NEVER HAPPEN AND B-COULD NOT BE DUPLIC..."

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.

STEERING 4 complaints
Median: 105,000 mi

Where Are Complaints Coming From?

Top states by complaint count.

CT: 5 NY: 4 PA: 3 CA: 3 TX: 3 MA: 2 FL: 1 OH: 1 IL: 1 CO: 1

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