Mercedes-Benz ML 350: which model years draw the most owner complaints?
953 complaints filed with NHTSA about the Mercedes-Benz ML 350, model years 2001 to 2015. One model year stands out for the engine or transmission: 2006 (engine 5.2×, transmission 4.3×). Quietest mature years by complaint count: 2005, 2003, 2004. Counts of unverified owner reports, compared only with other years of the same model; not failure rates.
Complaints by model year
| MODEL YEAR | COMPLAINTS | VS OTHER YEARS | STANDS OUT | RECALLS |
|---|---|---|---|---|
| 2001 ML 350FEW REPORTS | 1 | — | 0 | |
| 2003 ML 350FEW REPORTS | 25 | quiet: 2 of 13 | 0 | |
| 2004 ML 350FEW REPORTS | 35 | quiet: 3 of 13 | 0 | |
| 2005 ML 350FEW REPORTS | 23 | quiet: 1 of 13 | 0 | |
| 2006 ML 350 | 172 | engine 5.2×, transmission 4.3× | 2 | |
| 2007 ML 350FEW REPORTS | 83 | — | 2 | |
| 2008 ML 350FEW REPORTS | 67 | — | 2 | |
| 2009 ML 350FEW REPORTS | 93 | — | 3 | |
| 2010 ML 350FEW REPORTS | 101 | — | 3 | |
| 2011 ML 350FEW REPORTS | 111 | — | 3 | |
| 2012 ML 350FEW REPORTS | 65 | — | 4 | |
| 2013 ML 350FEW REPORTS | 57 | quiet: 5 of 13 | 5 | |
| 2014 ML 350FEW REPORTS | 68 | — | 4 | |
| 2015 ML 350FEW REPORTS | 52 | quiet: 4 of 13 | 5 |
"Stands out" = 40 or more complaints naming that system and at least twice the model's quiet (lower-quartile) year, or twice the share seen across every vehicle of that model year. Newer years have had less time on the road. "Quiet" ranks only years with 7+ years on the road and 20+ complaints. NHTSA data through November 2026.
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Other Mercedes-Benz models
Mercedes-Benz AMG E 55 · Mercedes-Benz C 230 · Mercedes-Benz C 250 · Mercedes-Benz C 300 · Mercedes-Benz C 320 · Mercedes-Benz C 350 · Mercedes-Benz CLA 250 · Mercedes-Benz E 300 · Mercedes-Benz E 320 · Mercedes-Benz E 350 · Mercedes-Benz E 500 · Mercedes-Benz E 550 · Mercedes-Benz GL 450 · Mercedes-Benz GLA 250 · Mercedes-Benz GLC 300 · Mercedes-Benz GLE 350 · Mercedes-Benz GLK 350 · Mercedes-Benz ML 320 · Mercedes-Benz Metris · Mercedes-Benz R 350 · Mercedes-Benz S 430 · Mercedes-Benz S 500 · Mercedes-Benz S 550 · Mercedes-Benz S Class · Mercedes-Benz SL 500 · Mercedes-Benz Sprinter 2500 · Mercedes-Benz Sprinter 3500. All makes and models.
Source: NHTSA public complaints, recalls, service bulletin and investigation databases, data received through November 2026. Complaints are unverified reports from owners, not failure rates: sales volumes are unknown, so a model year is only compared with other years of the same model. Not a diagnosis and not financial advice. PulsCar is not affiliated with NHTSA. Year pages: 2006