![]() ![]() At the same time injectors are installed in cylinder block head. Variable-length intake manifold DISA is used on the inlet. It made it possible to increase power as well as reduce fuel consumption. ![]() At the same time new Valvetronic lifting system was also added in order to regulate the level of inlet valves. New improved Double-VANOS cylinder block head is installed in N52B25. It is also equipped by new light connecting rods, pistons and modified crankshaft. N52 engine is based on revolutionary Aluminum-magnesium cylinder block which is lighter in comparison with the previous version. Apart from previous version of M series where every new motor reflected evolution of the previous one, new engine turned out to be absolutely new product. It appeared in 2005 as an alternative to popular at that time M54B25 engine. It is another 2.5-liter engine from N52 series which also includes N52B30 engine with ordinary layout and 6 cylinders. Normal engine operating temperature, ☌ (F)īMW N52B25 engine reliability, problems and repair
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