Mercedes-Benz Cls — reliability by registration year
2005–2019 · 15 registration years · 20,757 first tests
Registration years
First-attempt MOT results for every Cls registration year with at least 500 first tests in 2025. Pass rates rise with newer cars, so read a year against its neighbours rather than against the top of the table.
| Year | First tests | First-attempt pass | Incl. PRS | Most common failure |
|---|---|---|---|---|
| 2019 | 1,002 | 82.3% | 83.1% | Tyres — Condition (front) 35.0% |
| 2018 | 900 | 82.6% | 84.1% | |
| 2017 | 1,415 | 79.6% | 82.2% | Tyres — Condition (front) 25.0% |
| 2016 | 2,000 | 79.5% | 82.2% | Tyres — Condition (front) 23.1% |
| 2015 | 2,729 | 78.4% | 80.3% | Tyres — Condition (front) 22.3% |
| 2014 | 1,644 | 74.2% | 75.9% | Tyres — Condition (front) 20.8% |
| 2013 | 2,809 | 71.4% | 73.4% | Tyres — Condition (front) 15.2% |
| 2012 | 1,012 | 73.5% | 75.9% | |
| 2011 | 1,026 | 73.0% | 75.9% | |
| 2010 | 927 | 65.3% | 71.2% | |
| 2009 | 895 | 66.3% | 70.9% | Ball joint (front) 18.9% |
| 2008 | 1,128 | 68.6% | 74.7% | Ball joint (front) 15.3% |
| 2007 | 1,373 | 67.4% | 73.3% | Ball joint (front) 14.5% |
| 2006 | 1,098 | 70.0% | 74.8% | Ball joint (front) 17.1% |
| 2005 | 799 | 70.6% | 77.0% |