![]() Long intake manifold has been replaced with a shorter one (-10 mm). Engine is equipped with lighter pistons.ĭouble VANOS cylinder block head is also the same. Connecting rods have also been replaced with longer ones (M54B25 connecting rod length is 145 mm). It is made of aluminum with cast iron sleeves and crankshaft. At the same time they also have different camshafts, intake manifolds, throttles, ECU, injectors and other components.Ĭylinder block of the new engine is the same. This is due to the fact that both motors are equipped by different crankshafts, connecting rods and pistons. However the difference between M54B25 and M54B30 is in their displacement. It firstly appeared in BMW production line in 2000 and turned out to be a great alternative to M52TUB25. This engine is a very popular representative of M54 series which also includes M54B22, M54B30 and S54B32 motors. Normal engine operating temperature, ☌ (F)īMW M54B25 engine reliability, problems and repair
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