RoadVitals

2012 Mercedes-Benz M166

Recalls, owner-reported complaints, investigations and safety data

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
1
Latest Nov 21, 2019
Safety recallsA safety recall is issued when a manufacturer or NHTSA determines that a vehicle has a safety-related defect or does not comply with a federal motor vehicle safety standard. Recall repairs are free. Whether a specific vehicle is covered depends on its VIN — a recall listed for a model year does not necessarily apply to every vehicle of that year.
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InvestigationsNHTSA opens an investigation to examine whether a safety defect may exist. An open investigation is not a determination that a defect exists, and many investigations close without a recall. Investigations can, however, lead to one.
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Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
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Overview

Our database contains 1 NHTSA owner-reported complaint for the 2012 Mercedes-Benz M166, most frequently naming the powertrain (other) category. 101 manufacturer communications are on file.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

What owners report

Complaints grouped by the component NHTSA recorded

  • Powertrain (other)1100.0%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Safety recalls

No recalls in our database for this model year

That does not guarantee a specific vehicle is unaffected — recalls are issued against VINs, and new campaigns are announced regularly. Check a VIN on NHTSA.gov.

Recent owner complaints

Reports submitted to NHTSA, shown in the owner's own words

Powertrain (other)
Filed Nov 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.

NHTSA ID
11281662
Incident
Oct 4, 2019
Mileage
129,105 mi

Manufacturer communications

A bulletin sent by a manufacturer to its dealers. Not a recall, and repairs are not necessarily free.

LI35 30-P-058566

POWER TRAIN

Throttle lift-off clunking noises at drive shafts of rear axle

LI82 85-P-068445

EQUIPMENT; EQUIPMENT:ELECTRICAL

Info-Call/S24H-Call/MB Contact: Change of language setting at customer request

LI82 85-P-068378

EQUIPMENT; EQUIPMENT:ELECTRICAL

Audio 20: Symbols in the status line in the central display can overlap

P-SC-2018020006

SUSPENSION:FRONT:MACPHERSON STRUT

Check right front air suspension strut, replace if necessary

LI82 70-P-066767

EQUIPMENT

COMAND Online: Some contacts on the telephone are not found via voice control.

LI32 34-P-056198

ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

Fault message "AIRMATIC" or "Active Curve System" in instrument cluster

Manufacturers file copies of the bulletins they send to dealers with NHTSA. These often describe diagnostic or repair procedures for a known condition. They are not recalls: repairs described in a bulletin are usually only free if the vehicle is still under warranty or the manufacturer has extended coverage.

Compare model years

Complaint and recall counts across every year of this model

Mercedes-Benz M166 by model year
YearComplaintsRecallsInvestigationsIssue Index
2014000—
2013000—
2012Viewing100—
2011100—
2010400—

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers. Older model years have had longer for reports to accumulate.