Reliability & cost of ownership
Mercedes Benz M Class Reliability & Common Problems
How reliable is the Mercedes Benz M Class? Compare every model year side by side — NHTSA recalls, owner complaints, and crash-test stars — then open the year you're shopping for a full reliability and repair-cost forecast.
Mercedes Benz M Class problems by model year
20 recall entries and 66 owner complaints on file across 7 model years, sourced from the federal NHTSA database.
| Year | Recalls | Complaints | NCAP stars | Full report |
|---|---|---|---|---|
| 2009 M Class | 1 | 1 | No NCAP test | Reliability forecast → |
| 2008 M Class | 2 | 1 | No NCAP test | Reliability forecast → |
| 2007 M Class | 2 | 2 | No NCAP test | Reliability forecast → |
| 2006 M Class | 2 | 14 | No NCAP test | Reliability forecast → |
| 2001 M Class | 4 | 5 | No NCAP test | Reliability forecast → |
| 2000 M Class | 5 | 25 | No NCAP test | Reliability forecast → |
| 1999 M Class | 4 | 18 | No NCAP test | Reliability forecast → |
Most-complained-about components
Owner complaints filed with NHTSA against the Mercedes Benz M Class, grouped by the component each complaint names — the fastest read on where this model gives trouble.
- steering19 complaints
- electrical system10 complaints
- engine and engine cooling10 complaints
- service brakes9 complaints
- power train8 complaints
- hydraulic7 complaints
- electronic stability control (esc)7 complaints
- fuel system4 complaints