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Mercedes SLK 2004 reliability and quality

Production year from 2004 to 2008

According to yearly reports of vehicle inspection service Mercedes SLK reliability is entirely high.

During regular inspections from 2006 to 2020 in average failures were found for approximately only 11.1 percents of Mercedes SLK.
The most recent data available is for 2020, when the average defect rate for a 15-year-old Mercedes SLK was 19.5 percent, the average for a car that age was 29.5 percent. So in terms of reliability, Mercedes SLK has performed very well, or more reliable than 95% of the other cars tested.

The quality comes at a price - used Mercedes SLK is around 90 percent more expensive than the average cabrios of its age.

Mercedes SLK price and technical data
Mercedes SLK 2004 owner reviews
Cabrios 2004 - 2008 prices

Year of inspection Age of car Failures found %
/ average for same age cars		 Place in rating
Mercedes SLK 2008
2020 12 years 19.5% / 29.51% 4. from 99
2019 11 years 18.6% / 28.39% 4. from 96
2018 10 years 14.6% / 21.77% 7. from 107
2017 9 years 12.8% / 20.90% 4. from 106
2016 8 years 13.3% / 19.10% 10. from 116
2015 7 years 13.7% / 20.10% 9. from 111
2013 5 years 6.5% / 10.80% 17. from 121
2012 4 years 4.5% / 5.90% 32. from 129
2011 3 years 4.9% / 5.50% 53. from 132
2010 2 years 3.3% / 5.10% 17. from 131
Mercedes SLK 2007
2019 12 years 18.6% / 28.39% 4. from 96
2018 11 years 18.4% / 26.89% 6. from 93
2017 10 years 12.8% / 20.90% 4. from 106
2016 9 years 16.5% / 24.90% 9. from 102
2015 8 years 13.7% / 20.10% 9. from 111
2014 7 years 14.3% / 21.80% 10. from 113
2013 6 years 6.5% / 10.80% 17. from 121
2012 5 years 6.4% / 10.30% 17. from 122
2011 4 years 4.9% / 5.50% 53. from 132
2010 3 years 3.3% / 5.10% 17. from 131
2009 2 years 3.8% / 5.00% 27. from 117
Mercedes SLK 2006
2018 12 years 18.4% / 26.89% 6. from 93
2017 11 years 17.4% / 27.10% 3. from 86
2016 10 years 16.5% / 24.90% 9. from 102
2015 9 years 17.8% / 26.80% 6. from 95
2014 8 years 14.3% / 21.80% 10. from 113
2013 7 years 10.9% / 17.20% 14. from 107
2012 6 years 6.4% / 10.30% 17. from 122
2011 5 years 6.5% / 10.40% 19. from 120
2010 4 years 3.3% / 5.10% 17. from 131
2009 3 years 3.8% / 5.00% 27. from 117
2008 2 years 4.3% / 4.80% 49. from 116
Mercedes SLK 2005
2017 12 years 17.4% / 27.10% 3. from 86
2016 11 years 20.4% / 31.40% 5. from 89
2015 10 years 17.8% / 26.80% 6. from 95
2014 9 years 19.5% / 28.80% 9. from 95
2013 8 years 10.9% / 17.20% 14. from 107
2012 7 years 12.1% / 17.50% 23. from 107
2011 6 years 6.5% / 10.40% 19. from 120
2010 5 years 6.5% / 9.90% 26. from 123
2009 4 years 3.8% / 5.00% 27. from 117
2008 3 years 4.3% / 4.80% 49. from 116
2007 2 years 3.0% / 5.90% 4. from 113
Mercedes SLK 2004
2016 12 years 20.4% / 31.40% 5. from 89
2015 11 years 26.9% / 32.10% 18. from 78
2014 10 years 19.5% / 28.80% 9. from 95
2013 9 years 17.5% / 23.00% 18. from 87
2012 8 years 12.1% / 17.50% 23. from 107
2011 7 years 13.3% / 16.70% 28. from 98
2010 6 years 6.5% / 9.90% 26. from 123
2009 5 years 6.0% / 9.30% 15. from 109
2008 4 years 4.3% / 4.80% 49. from 116
2007 3 years 3.0% / 5.90% 4. from 113
2006 2 years 3.8% / 6.60% 7. from 107
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