The M272 was a shitty engine from 06-08. Merc. fixed the problems mid 2008. I own one from 2010. It currently has 229,000 miles (over 368,000 km) and change. The only thing I have had to do to the engine aside from oil changes and spark plugs (once), is the PCV gasket and the oil filter/cooler gasket. Most reliable vehicle I have ever owned.