Відома особливість (витрата масла): Some engines exhibit increased oil consumption and external oil leaks from valve cover, oil pan and oil filter housing gaskets, often attributed to gasket hardening and crankcase ventilation issues.[5]
Відомий дефект: High-pressure fuel pump failures on early N55 applications, electric water pump and thermostat failures, and carbon buildup on intake valves due to direct injection are commonly reported issues.[5]
Відомий дефект (ГРМ): Early N55 engines had reports of timing chain and guide wear, but issues are less prevalent than on the N47 diesel and are not generally considered a systemic defect.