Mercedes-Benz S-Class MOT pass rate by year
How the Mercedes-Benz S-Class's MOT pass rate changes year by year, from 1983 to 2020, across the DVSA record.
What is the Mercedes-Benz S-Class MOT pass rate by year?
The MOT pass and failure rate for each Mercedes-Benz S-Class model year, from the DVSA record. Only years with at least 1,000 tests are shown, so each figure is a real average rather than a handful of cars. The Mercedes-Benz S-Class averages 19.5% failures across all years.
| Year | Pass rate | Failure rate | Tests |
|---|---|---|---|
| 1983 | 67.5% | 32.5% | 1,064 |
| 1984 | 71.7% | 28.3% | 1,385 |
| 1985 | 69.6% | 30.4% | 1,714 |
| 1986 | 69.9% | 30.1% | 1,904 |
| 1987 | 69.7% | 30.3% | 2,594 |
| 1988 | 72.4% | 27.6% | 2,811 |
| 1989 | 72.8% | 27.2% | 3,657 |
| 1990 | 75.2% | 24.8% | 3,280 |
| 1991 | 74.2% | 25.8% | 2,878 |
| 1992 | 73.4% | 26.6% | 2,289 |
| 1993 | 71.2% | 28.8% | 2,775 |
| 1994 | 72.5% | 27.5% | 6,476 |
| 1995 | 73.0% | 27.0% | 10,868 |
| 1996 | 72.8% | 27.2% | 13,374 |
| 1997 | 72.1% | 27.9% | 13,894 |
| 1998 | 72.8% | 27.2% | 14,976 |
| 1999 | 74.9% | 25.1% | 27,184 |
| 2000 | 76.4% | 23.6% | 38,019 |
| 2001 | 76.7% | 23.3% | 48,816 |
| 2002 | 77.6% | 22.4% | 47,220 |
| 2003 | 79.0% | 21.0% | 46,888 |
| 2004 | 78.9% | 21.1% | 36,105 |
| 2005 | 78.5% | 21.5% | 25,793 |
| 2006 | 81.7% | 18.3% | 41,591 |
| 2007 | 81.4% | 18.6% | 44,078 |
| 2008 | 80.8% | 19.2% | 27,947 |
| 2009 | 81.0% | 19.0% | 21,199 |
| 2010 | 83.5% | 16.5% | 19,786 |
| 2011 | 84.0% | 16.0% | 17,957 |
| 2012 | 84.0% | 16.0% | 20,988 |
| 2013 | 85.7% | 14.3% | 15,593 |
| 2014 | 89.3% | 10.7% | 21,620 |
| 2015 | 89.3% | 10.7% | 24,335 |
| 2016 | 89.2% | 10.8% | 24,385 |
| 2017 | 90.2% | 9.8% | 20,653 |
| 2018 | 92.1% | 7.9% | 16,192 |
| 2019 | 92.2% | 7.8% | 12,960 |
| 2020 | 93.5% | 6.5% | 1,116 |
Does age change how often a Mercedes-Benz S-Class fails?
Older Mercedes-Benz S-Classs fail more often, as expected. The 1983 cars fail 32.5% of tests against 6.5% for the 2020. Across every year the model averages 19.5%. The 1983 is the weakest year at 32.5%, and the 2020 the strongest at 6.5%.
More on the Mercedes-Benz S-Class
The full failure breakdown for this model, and how it compares to others.
| See also |
|---|
| Mercedes-Benz S-Class: common MOT failures and the parts that fix them |
| All Mercedes-Benz models compared by MOT failure rate |
| MOT failure rates across Britain |
Sources: DVSA MOT History API: MOT test results and defect data ยท DVSA MOT testing data for Great Britain