Mercedes S class 2005 reliability and quality

Production year from 2005 to 2009

Unfortunately, the most recent inspection data for this Mercedes S class is more than 10 years old, but at that time reliability was little below average.

During regular inspections from 2007 to 2012 in average failures were found for approximately 7.8 percents of Mercedes S class.
The most recent data available is for 2012, when the average defect rate for a 6-year-old Mercedes S class was 10.3 percent, the average for a car that age was 10.5 percent. Mercedes S class reliability performance was therefore below average - 55% of other cars tested had fewer defects.

Year of inspection Age of car Failures found %
/ average for same age cars
Place in rating
Mercedes S klase 2009
2012 3 years 7.5% / 5.90% 100. from 129
2011 2 years 7.1% / 5.50% 97. from 132
Mercedes S klase 2008
2012 4 years 7.5% / 5.90% 100. from 129
2011 3 years 7.1% / 5.50% 97. from 132
2010 2 years 5.4% / 5.10% 71. from 131
Mercedes S klase 2007
2012 5 years 8.3% / 10.30% 40. from 122
2011 4 years 7.1% / 5.50% 97. from 132
2010 3 years 5.4% / 5.10% 71. from 131
2009 2 years 6.0% / 5.00% 87. from 117
Mercedes S klase 2006
2012 6 years 8.3% / 10.30% 40. from 122
2011 5 years 9.1% / 10.40% 49. from 120
2010 4 years 5.4% / 5.10% 71. from 131
2009 3 years 6.0% / 5.00% 87. from 117
2008 2 years 5.0% / 4.80% 68. from 116
Mercedes S klase 2005
2012 7 years 16.5% / 17.50% 52. from 107
2011 6 years 9.1% / 10.40% 49. from 120
2010 5 years 10.3% / 9.90% 75. from 123
2009 4 years 6.0% / 5.00% 87. from 117
2008 3 years 5.0% / 4.80% 68. from 116
2007 2 years 6.7% / 5.90% 69. from 113