Mercedes-Benz M166 problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
6 owner complaints analyzed
0 distinct recall campaigns
93,000 mi median reported failure mileage
Scope: 2010 to 2012 model years. Data snapshot: . 5 complaints include usable failure mileage.
This selection has limited data. It remains available for lookup but is excluded from search indexing.
Most common problems
Air Bags is the most frequently named component, appearing in 2 of 6 complaints (33.3%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Steering behavior | 2 | 33.3% |
| Transmission and shifting | 1 | 16.7% |
| Fuel system concerns | 1 | 16.7% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Air Bags | 2 |
| Steering | 2 |
| Power Train | 1 |
| Unknown Or Other | 1 |
Air Bags: 2; Steering: 2; Power Train: 1; Unknown Or Other: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 1 |
| 25,000 to 49,999 | 0 |
| 50,000 to 74,999 | 0 |
| 75,000 to 99,999 | 2 |
| 100,000 to 149,999 | 2 |
| 150,000 and above | 0 |
Under 25,000: 1; 25,000 to 49,999: 0; 50,000 to 74,999: 0; 75,000 to 99,999: 2; 100,000 to 149,999: 2; 150,000 and above: 0
75,000 to 99,999 miles has the most reports with usable mileage (2). 1 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2019 | 3 |
| 2020 | 3 |
2019: 3; 2020: 3
Pattern summary
Air Bags leads the component reports. Steering behavior appears in 2 complaint narratives. Transmission and shifting appears in 1 complaint narratives. Fuel system concerns appears in 1 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 11286569 · 2019-12-03 (December 3, 2019)
WHILE COMMUTING ON A HIGHLY CONGESTED HIGHWAY THE CAR LOST POWER CAUSING THE STEERING WHEEL TO BECOME LOCKED THIS LOST OF POWER AND DISABLING CAUSED MY CAR TO VEER INTO ONCOMING TRAFFIC AND TAKING MY VEHICLE UNCONTROLLABLY OFF THE ROAD
Owner-reported narrative. 93,000 miles reported. Look up ODI 11286569 at NHTSA ↗
Owner report 11302318 · 2020-01-27 (January 27, 2020)
AFTER DRIVING THE VEHICLE TO WORK (APPROX. 35 MILES) AND THEN RETURNING AFTER THE WORK DAY WAS COMPLETE, THE VEHICLE WOULD NOT START. WE SPOKE WITH THE MANUFACTURERS ROADSIDE ASSISTANCE AS WELL AS THE TECHNICIAN THEY DISPATCHED TO OUR LOCATION. WE TRIED MULTIPLE SOLUTIONS TO OUR PROBLEM WITH NO AVAIL. THE VEHICLE WAS TOWED TO THE DEALERSHIP AND UPON INVESTIGATION, THE ELECTRONIC STEERING LOCK MECHANISM HAD GONE BAD RESULTING IN A NEED TO REPLACE THIS PART. I HAVE DONE RESEARCH ONLINE AS WELL AS SPOKEN TO SEVERAL MEMBERS OF THE SERVICE DEPAR…
Owner-reported narrative. 136,000 miles reported. Look up ODI 11302318 at NHTSA ↗
Owner report 11281662 · 2019-11-21 (November 21, 2019)
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.
Owner-reported narrative. 129,105 miles reported. Look up ODI 11281662 at NHTSA ↗
Owner report 11317416 · 2020-03-10 (March 10, 2020)
AFTER A FUEL FILL UP THERE IS A SERIOUS GAS SMELL INSIDE THE VEHICLE. AFTER USING A QUARTER OF THE TANK THE SMELL GOES AWAY. THE VEHICLE IS PARKED MOTOR OFF. THE GARAGE IS SO FILLED WITH GAS FUMES I HAVE TO RUN A FAN. THIS HAS BEEN GOING ON FOR OVER 2 YEARS.
Owner-reported narrative. 75,000 miles reported. Look up ODI 11317416 at NHTSA ↗
Recalls by model year
All campaigns in the snapshot affecting each model year, including recalls announced years later.
Recall campaigns
Shared campaigns appear once in each affected model year.
| Category | Count |
|---|---|
| 2010 | 0 |
| 2011 | 0 |
| 2012 | 0 |
2010: 0; 2011: 0; 2012: 0