2010 Mercedes-Benz M166: common problems
Owners of the 2010 Mercedes-Benz M166 filed 4 complaints with NHTSA, most often about steering and air bags. Details by component below, with sources.
Key figures
- Owner complaints
- 4
- involving a crash
- 1
What fails most often
- 1 Steering 50% of all complaints
- 2 Air bags 25% of all complaints
- Steering: 2 complaints (50% of all), 1 of them with a crash reported by the owner.
- Air bags: 1 complaints (25% of all).
Symptoms owners describe
How many of the 4 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
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
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.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 15,524 of 36,659 model years in the NHTSA data (top 42% most complained about).
On average one model year of the M166 has 2 complaints (3 years in the data). This year has 4, above average.
What to check before buying
- Steering. Steering play, power assist, rack and tie rods after a wheel impact.
- Air bags. Check the SRS light, stored codes and airbag/curtain status after any impact.
Other years of this model
Questions and answers
What are the most common problems with the 2010 Mercedes-Benz M166?
Owner complaints to NHTSA most often mention: steering, air bags. Total complaints: 4. The most frequent symptoms in complaint texts: fuel system, fuel smell (25%), won't start (25%), loss of power / limp mode (25%).
How many service bulletins (TSB) were issued for the 2010 Mercedes-Benz M166?
NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2010 Mercedes-Benz M166 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2010 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-06.