BMW N20 Engine Tuning, turbo upgrade, problems, specs, oil
Mar 12, 2015 0183 32BMW N20 engine reliability, problems and repair. Production of BMW N20B20 turbocharged 4cylinder inline engine was launched in 2011. It was introduced as replacement of naturally aspirated 6cylinder inline N53B25 and N53B30 engines. N20 cylinder block is made of aluminum with two balance shafts and steelplated cylinders.