![]() ![]() You need to run diagnostics, it may need overhaul.Ģ. More likely soot deposited in cylinder or oil rings failed. Nissan MR20DE engine problems and malfunctionsġ. Since 2010 MR20DD with direct injection system has appeared.Īlso Nissan MR series include such engines as MR16DDT, MR18DE/MRA8DE, M9R. But if you enjoy active driving, for you it certainly will not be enough. The engineers also tried to reduce friction thanks to brilliant mirror-like polishing of crankshaft and camshaft journals, and also thanks to utterly true shape of the cylinders.Īll that made MR20DE engine quite convenient for secure driving in the city. Exhaust system has straight design, what lets carrying exhaust fumes effectively.Īlso MR20DE has EGR system, which returns a part of the exhaust gas for its repeated combustion and improves the ecological index. Intake manifold has long runners, it improves low- and mid-range torque. The intake and exhaust systems are made in special way to create the lowest resistance. MR20DE was not equipped with any hydraulic lifters, and so if ticking noise has appeared, you need to regulate valve clearance. Aluminium cylinder head has two camshafts and continuous variable valve timing system CVTC on the intake side. ![]() New aluminium cylinder block with offset crankshaft was developed for the engine, Piston stroke is 90.1 mm, and cylinder diameter in this engine is 84 mm. This engine was designed both by Nissan and Renault. Nissan MR20DE engine reliability, problems and repair ![]() Normal engine operating temperature, ☌ (F) ![]()
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