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2012 MERCEDES-BENZ M166

Owner reports · Recalls · Investigations

Limited comparison data

There is not enough comparable history to draw a useful model-year comparison.

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How this year compares

Owner complaints by model year

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Counts vary with age, sales and reporting. They are not failure rates.

What owners reported most

Tap a category to read its complaints. One report may name several components.

When problems were reported

Mileage at the reported incident

Limited mileage data: 1 of 1 reports include usable mileage. There isn’t enough coverage to show a useful chart.

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Power Train. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

0 crash reports0 fire reports0 injury reports

What owners actually said

1 reports
129,105 miles · Nov 21, 2019
Power Train

THIS MODEL HASN!T A TRANSMISSION FLUID MEASUREMENT STICK, BUT EITHER NOT INDICATE AT MONITORING SCREEN IF NEEDS FLUID, ALSO THE TRANSMISSION FLUID PAN BECOME RUSTED DUE TO LOW MATERIAL QUALITY LEAKING ALL FLUID AND CAUSING SERIOUS AUTOMATIC TRANSMISSION DAMAGES, COSTING OVER US$6000.00 IN REPAIR. I WANT THAT YOU AGENCY OPEN A IN…

Read full complaint

THIS MODEL HASN!T A TRANSMISSION FLUID MEASUREMENT STICK, BUT EITHER NOT INDICATE AT MONITORING SCREEN IF NEEDS FLUID, ALSO THE TRANSMISSION FLUID PAN BECOME RUSTED DUE TO LOW MATERIAL QUALITY LEAKING ALL FLUID AND CAUSING SERIOUS AUTOMATIC TRANSMISSION DAMAGES, COSTING OVER US$6000.00 IN REPAIR. I WANT THAT YOU AGENCY OPEN A INVESTIGATION. I HAVE THE OLD PAN TO BE EXANMINATED FOR FAULTY MATERIAL AT ALL VEHICLE OF THAT YEAR AND MODEL.

NHTSA ODI #11281662

Official recalls

0

No recalls in this snapshot.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

0

No exact-year investigations in this snapshot.